BUmp version to 1.0.2

* feat: make SQLite tick history opt-in for collect-history

Ticks can grow SQLite databases quickly, so they are excluded from the
default dataset selection. The new DEFAULT_HISTORY_DATASETS constant
(rates, history-orders, history-deals) drives resolve_history_datasets(None),
collect_history(), and update_history(). Callers must pass
--dataset ticks (CLI) or datasets={Dataset.ticks} (SDK) to include ticks.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ALK71tg75JWrrCKaiShb7b

* chore: reformat docs/index.md table column widths

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ALK71tg75JWrrCKaiShb7b

* fix: update stale docstrings and tighten CLI None check

- update_history and ThrottledHistoryUpdater.__init__ docstrings now
  state that ticks are opt-in, matching collect_history's wording
- cli.py collect-history uses `is not None` for explicit empty-list safety

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ALK71tg75JWrrCKaiShb7b

* docs: update README collect-history to reflect ticks opt-in default

The command table and section intro previously stated ticks were
collected by default ("all four", "rates, ticks, history-orders, and
history-deals"). Both now reflect the new default (rates, history-orders,
history-deals) and note that --dataset ticks is required to include ticks.

Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01ALK71tg75JWrrCKaiShb7b

---------

Co-authored-by: Claude <noreply@anthropic.com>

README.md

@@ -29,6 +29,12 @@ Built on top of [pdmt5](https://github.com/dceoy/pdmt5), a pandas-based data han
 pip install -U mt5cli MetaTrader5
 ```
 
+Parquet export is not included by default. To enable it, install the `parquet` extra:
+
+```bash
+pip install -U "mt5cli[parquet]" MetaTrader5
+```
+
 ## Python API (downstream packages)
 
 Import `MT5Client` for generic MT5 data access, schema normalization, and optional order primitives.
@@ -38,16 +44,14 @@ from datetime import UTC, datetime
 from pathlib import Path
 
 from mt5cli import (
-    DataKind,
-    Dataset,
     MT5Client,
     build_config,
     collect_history,
-    export_dataframe,
     mt5_session,
-    normalize_dataframe,
     update_history_with_config,
 )
+from mt5cli.schemas import DataKind, normalize_dataframe
+from mt5cli.utils import Dataset, export_dataframe
 
 # Persistent session for multiple calls
 with mt5_session(build_config(login=12345, server="Broker-Demo")) as client:
@@ -83,7 +87,7 @@ update_history_with_config(
 )
 ```
 
-Schema contracts live in `mt5cli.schemas` (`DataKind`, `validate_schema`, `normalize_dataframe`). Storage helpers are re-exported from `mt5cli.storage` and the package root.
+Schema contracts live in `mt5cli.schemas` (`DataKind`, `validate_schema`, `normalize_dataframe`). Export and storage helpers are in `mt5cli.utils` (`Dataset`, `export_dataframe`) and `mt5cli.history`.
 
 `MT5Client.order_send()` is a live execution primitive: it can place real trades on the connected account. mt5cli does not implement strategy logic, signal generation, backtesting, or optimization — downstream applications must gate live execution explicitly.
 
@@ -153,34 +157,34 @@ python -m mt5cli -o account.csv account-info
 
 ## Commands
 
-| Command                | Description                                                                                                  |
+| Command                | Description                                                                                                                                 |
-| ---------------------- | ------------------------------------------------------------------------------------------------------------ |
+| ---------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
-| `rates-from`           | Export rates from a start date                                                                               |
+| `rates-from`           | Export rates from a start date                                                                                                              |
-| `rates-from-pos`       | Export rates from a start position                                                                           |
+| `rates-from-pos`       | Export rates from a start position                                                                                                          |
-| `latest-rates`         | Export latest rates from a start position                                                                    |
+| `latest-rates`         | Export latest rates from a start position                                                                                                   |
-| `rates-range`          | Export rates for a date range                                                                                |
+| `rates-range`          | Export rates for a date range                                                                                                               |
-| `ticks-from`           | Export ticks from a start date                                                                               |
+| `ticks-from`           | Export ticks from a start date                                                                                                              |
-| `ticks-range`          | Export ticks for a date range                                                                                |
+| `ticks-range`          | Export ticks for a date range                                                                                                               |
-| `ticks-recent`         | Export ticks from a recent trailing window                                                                   |
+| `ticks-recent`         | Export ticks from a recent trailing window                                                                                                  |
-| `account-info`         | Export account information                                                                                   |
+| `account-info`         | Export account information                                                                                                                  |
-| `terminal-info`        | Export terminal information                                                                                  |
+| `terminal-info`        | Export terminal information                                                                                                                 |
-| `version`              | Export MetaTrader 5 version information                                                                      |
+| `version`              | Export MetaTrader 5 version information                                                                                                     |
-| `last-error`           | Export the last error information                                                                            |
+| `last-error`           | Export the last error information                                                                                                           |
-| `symbols`              | Export symbol list                                                                                           |
+| `symbols`              | Export symbol list                                                                                                                          |
-| `symbol-info`          | Export symbol details                                                                                        |
+| `symbol-info`          | Export symbol details                                                                                                                       |
-| `symbol-info-tick`     | Export the last tick for a symbol                                                                            |
+| `symbol-info-tick`     | Export the last tick for a symbol                                                                                                           |
-| `minimum-margins`      | Export minimum-volume buy and sell margin requirements                                                       |
+| `minimum-margins`      | Export minimum-volume buy and sell margin requirements                                                                                      |
-| `market-book`          | Export market depth (order book)                                                                             |
+| `market-book`          | Export market depth (order book)                                                                                                            |
-| `orders`               | Export active orders                                                                                         |
+| `orders`               | Export active orders                                                                                                                        |
-| `positions`            | Export open positions                                                                                        |
+| `positions`            | Export open positions                                                                                                                       |
-| `history-orders`       | Export historical orders                                                                                     |
+| `history-orders`       | Export historical orders                                                                                                                    |
-| `history-deals`        | Export historical deals                                                                                      |
+| `history-deals`        | Export historical deals                                                                                                                     |
-| `recent-history-deals` | Export historical deals from a recent trailing window                                                        |
+| `recent-history-deals` | Export historical deals from a recent trailing window                                                                                       |
-| `mt5-summary`          | Export terminal/account status summary                                                                       |
+| `mt5-summary`          | Export terminal/account status summary                                                                                                      |
-| `order-check`          | Check funds sufficiency for a trade request                                                                  |
+| `order-check`          | Check funds sufficiency for a trade request                                                                                                 |
-| `order-send`           | Send a raw trade request to the trade server (`--yes` required; expert path)                                 |
+| `order-send`           | Send a raw trade request to the trade server (`--yes` required; expert path)                                                                |
-| `close-positions`      | Close open positions by `--symbol` or `--ticket` (`--yes` required for live; `--dry-run` available)          |
+| `close-positions`      | Close open positions by `--symbol` or `--ticket` (`--yes` required for live; `--dry-run` available)                                         |
-| `collect-history`      | Bundle rates, ticks, history-orders, and history-deals for one or more symbols into a single SQLite database |
+| `collect-history`      | Collect rates, history-orders, and history-deals for one or more symbols into a single SQLite database (ticks opt-in via `--dataset ticks`) |
 
 Use `order-check` to validate a request payload before running `order-send --yes`.
 `close-positions` is the safer high-level alternative that builds correct close
@@ -188,7 +192,7 @@ requests automatically. At least one `--symbol` or `--ticket` must be provided.
 
 ### `collect-history`
 
-Collect several historical datasets per symbol into one SQLite database in a single MT5 session. Pick datasets with repeatable `--dataset` (default: all four), choose conflict behavior with `--if-exists append|replace|fail` (default: `fail`), and optionally derive `cash_events` / `positions_reconstructed` views from `history_deals` via `--with-views`.
+Collect several historical datasets per symbol into one SQLite database in a single MT5 session. Pick datasets with repeatable `--dataset` (default: `rates`, `history-orders`, `history-deals`; add `--dataset ticks` when tick-level history is required — tick data can grow the SQLite database quickly), choose conflict behavior with `--if-exists append|replace|fail` (default: `fail`), and optionally derive `cash_events` / `positions_reconstructed` views from `history_deals` via `--with-views`.
 
 ```bash
 mt5cli -o history.db collect-history \
@@ -206,7 +210,8 @@ For automated pipelines, use the importable incremental API instead of re-fetchi
 
 ```python
 from pdmt5 import Mt5Config, Mt5DataClient
-from mt5cli import Dataset, update_history, update_history_with_config
+from mt5cli import update_history, update_history_with_config
+from mt5cli.utils import Dataset
 
 # Reuse an already-connected pdmt5 client (does not open/close MT5)
 client = Mt5DataClient(config=Mt5Config(login=12345))
@@ -241,7 +246,7 @@ update_history_with_config(
 - **Rate view resolution**: use `resolve_rate_view_name()` / `resolve_rate_view_names()` to map symbols and granularities to existing SQLite compatibility views without creating databases. Both accept `None` (or a missing path) and return deterministic default names unless `require_existing=True`.
 - **Rate view loading**: use `load_rate_data()` / `load_rate_data_from_connection()` to load a SQLite rate table or view into a `DatetimeIndex` DataFrame.
 - **Multi-series rate loading**: use `build_rate_targets()` to build neutral `RateTarget(symbol, timeframe)` pairs, `resolve_rate_tables()` to map them to table/view names (pass `require_existing=True` for strict resolution), and `load_rate_series_from_sqlite()` to load them into a mapping keyed by `(symbol, integer timeframe)`. The loader requires existing managed views unless `explicit_tables` is supplied, and rejects duplicate `(symbol, timeframe)` targets.
-- **Multi-account latest rates**: use `collect_latest_rates_for_accounts()` with `AccountSpec` to read the latest bars for several account groups, merged into a `(symbol, integer timeframe)` mapping. For long-running pollers, `collect_latest_rates_for_accounts_with_retries()` adds bounded exponential backoff that retries only `pdmt5.Mt5TradingError` / `pdmt5.Mt5RuntimeError` and re-raises once `retry_count` is exhausted.
+- **Multi-account latest rates**: use `collect_latest_rates_for_accounts()` with `AccountSpec` to read the latest bars for several account groups, merged into a `(symbol, integer timeframe)` mapping. For long-running pollers, `collect_latest_rates_for_accounts_with_retries()` adds bounded exponential backoff that retries only recoverable MT5 errors and re-raises once `retry_count` is exhausted.
 - **Latest closed bars**: use `collect_latest_closed_rates_for_accounts()` when downstream logic must exclude the still-forming current bar. It fetches `count + 1` bars at `start_pos=0`, drops the last row with `drop_forming_rate_bar()`, and validates each series is non-empty. `collect_latest_closed_rates_by_granularity()` returns the same data keyed by `(symbol, granularity_name)` such as `("EURUSD", "M1")`.
 
 ```python
@@ -258,7 +263,7 @@ eurusd_m1 = rates["EURUSD", "M1"]  # closed bars only
 
 - **Credential resolution**: use `resolve_account_spec()` / `resolve_account_specs()` to merge explicit override values over `AccountSpec` fields and expand `${ENV_VAR}` placeholders (via `substitute_env_placeholders()`), raising `ValueError` for missing variables. This keeps secrets out of plan/config files without coupling to any strategy code. For config dicts or nested structures loaded from YAML/TOML, use `substitute_mapping_values(data, keys={"login", "password"})` to expand placeholders only for caller-specified keys — key names are never hard-coded in mt5cli.
 - **Throttled history updates**: use `ThrottledHistoryUpdater` to wrap `update_history()` with a minimum `interval_seconds` between successful runs (monotonic clock). Call `should_update()` / `update(client, symbols)` from an application loop; errors propagate by default, or pass `suppress_errors=True` to swallow recoverable `Mt5*Error`, `sqlite3.Error`, `ValueError`, `OSError`, and MT5 client capability errors for history API methods without advancing the throttle (other `AttributeError` / `TypeError` values always propagate). Pass `update_backend` to inject a custom history update callable (same keyword arguments as `update_history`) instead of monkey-patching `mt5cli.sdk.update_history`.
-- **Trading session helpers**: use `mt5_trading_session()` for a trading-capable `pdmt5.Mt5TradingClient` that initializes/logs in via `Mt5Config.path` and always shuts down safely. Pair with `detect_position_side()`, `calculate_margin_and_volume()`, and `determine_order_limits()` for generic position and sizing utilities. Keep read-only collection on `mt5_session()` / `MT5Client`.
+- **Trading session helpers**: use `mt5_trading_session()` for a trading-capable client that initializes/logs in via `Mt5Config.path` and always shuts down safely. Pair with `detect_position_side()`, `calculate_margin_and_volume()`, and `determine_order_limits()` for generic position and sizing utilities. Keep read-only collection on `mt5_session()` / `MT5Client`.
 - **Granularity-keyed rate loading**: `load_rate_series_by_granularity()` builds targets with `build_rate_targets()`, loads them with `load_rate_series_from_sqlite()`, and returns a mapping keyed by `(symbol | None, granularity_name)` such as `("EURUSD", "M1")` to reduce downstream boilerplate.
 - **MT5 session helper**: use the `mt5_session()` context manager to attach to (or, when `Mt5Config.path` is set, launch) an MT5 terminal, log in, and yield a connected `MT5Client` that shuts down on exit.
 - **SQLite export helpers**: use `export_dataframe_to_sqlite()` for append mode, optional index export, and post-write deduplication by key columns.

docs/api/history.md

@@ -182,12 +182,14 @@ targets without hard-coding view names:
 from pathlib import Path
 
 from mt5cli import (
-    load_rate_data,
     load_rate_series_by_granularity,
     load_rate_series_from_sqlite,
-    resolve_rate_table_name,
 )
-from mt5cli.history import resolve_rate_view_name
+from mt5cli.history import (
+    load_rate_data,
+    resolve_rate_table_name,
+    resolve_rate_view_name,
+)
 
 view = resolve_rate_view_name(Path("history.db"), "EURUSD", "M1", require_existing=True)
 rates = load_rate_data(Path("history.db"), view, count=1000)

docs/api/index.md

@@ -13,7 +13,6 @@ responsibilities.
 | [Public API Contract](public-contract.md) | Stable downstream SDK exports, CLI boundary, and out-of-scope items       |
 | [Client](client.md)                       | `MT5Client` session abstraction for data access and order primitives      |
 | [Schemas](schemas.md)                     | Canonical DataFrame contracts and normalization helpers                   |
-| [Storage](storage.md)                     | CSV/JSON/Parquet/SQLite export and history collection helpers             |
 | [Converters](converters.md)               | Symbol, timeframe, timezone, and date-range utilities                     |
 | [Exceptions](exceptions.md)               | Stable mt5cli exception types and MT5 error normalization                 |
 | [SDK](sdk.md)                             | Module-level fetch helpers, multi-account collectors, incremental history |
@@ -30,15 +29,14 @@ flowchart TD
     CLI["mt5cli CLI"] --> Client
     Client --> SDK["sdk / pdmt5"]
     Client --> Schemas["schemas"]
-    Storage["storage"] --> History["history SQLite"]
+    History["history SQLite"] --> Utils["utils export"]
-    Storage --> Utils["utils export"]
     SDK --> PDMT5["pdmt5.Mt5DataClient"]
 ```
 
 Downstream packages should depend on the package root exports documented in the
 [Public API Contract](public-contract.md) (`MT5Client`,
-`DataKind`, `normalize_dataframe`, `collect_history`, `load_rate_data`,
+`collect_history`, `load_rate_series_from_sqlite`, etc.) rather than private
-`resolve_rate_view_name`, etc.) rather than private modules.
+modules. Lower-level helpers are accessible directly from their owning modules.
 
 `MT5Client.order_send()` is a live execution primitive that can place real trades. mt5cli exposes minimal execution helpers only; strategy logic, signals, backtests, and optimization remain out of scope and must be implemented downstream with explicit execution gating.
 

docs/api/public-contract.md

@@ -1,29 +1,41 @@
 # Public API Contract
 
-mt5cli is the generic MT5 data and execution infrastructure layer for downstream
+mt5cli is the canonical operational trading SDK and CLI/batch layer over pdmt5.
-Python applications. The intended dependency direction is:
+The intended dependency direction is:
 
 ```text
 downstream app -> mt5cli -> pdmt5 -> MetaTrader 5
 ```
 
+## Responsibility boundary
+
+| Layer          | Owns                                                                                                                                                                               |
+| -------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
+| **pdmt5**      | MT5 core wrapper; DataFrame/dict conversion; canonical MT5 constants and parsers; direct low-level order primitives                                                                |
+| **mt5cli**     | CLI/batch workflows; SQLite history collection; normalized datasets; closed-bar helpers; small downstream operational SDK; generic broker-facing margin/volume/order orchestration |
+| **downstream** | Strategy logic; signals; risk policy; backtesting; optimization; YAML/application semantics                                                                                        |
+
+Downstream code should import raw pdmt5 types and constants (such as
+`Mt5Config`, `Mt5RuntimeError`, `TIMEFRAME_MAP`, `COPY_TICKS_MAP`) directly
+from `pdmt5` when needed. mt5cli does not serve as a pass-through compatibility
+namespace for pdmt5. mt5cli's trading helpers type their client parameter against
+an internal protocol backed by `pdmt5.Mt5DataClient`; `Mt5TradingClient` is no
+longer required. `Mt5TradingError` is conditionally imported where still present
+in pdmt5, but mt5cli raises `Mt5OperationError` for all trading-related failures.
+
+Note: the former `mt5cli` re-export `TICK_FLAG_MAP` corresponds to `COPY_TICKS_MAP`
+in pdmt5 — the name changed, it was not simply moved.
+
 Downstream packages should import from the package root (`from mt5cli import
-...`) and use the public tier sets in `mt5cli.contract` to distinguish API
+...`). The contract set `STABLE_SDK_EXPORTS` in `mt5cli.contract` enumerates
-stability. CLI commands mirror the same behavior but are not importable Python
+every package-root symbol. Lower-level helpers (schema utilities, export
-APIs.
+functions, parser helpers, low-level MT5 wrappers) are available directly from
-
+their owning modules (`mt5cli.schemas`, `mt5cli.utils`, `mt5cli.converters`,
-## Public API tiers
+`mt5cli.sdk`, etc.) and are not part of the root SDK surface.
-
-mt5cli classifies package-root imports by intended downstream use:
-
-| Tier             | Contract set               | Meaning                                                                                                                                     |
-| ---------------- | -------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------- |
-| Stable core      | `STABLE_SDK_EXPORTS`       | Preferred SDK surface for downstream MT5 infrastructure adapters. Changes require a deliberate compatibility path.                          |
-| Secondary public | `SECONDARY_PUBLIC_EXPORTS` | Public helpers for CLI/export/schema integrations and lower-level MT5 wrappers. Importable, but less central to the downstream trading SDK. |
 
 ## Stable downstream SDK API
 
-These names are exported from `mt5cli` and covered by the contract in
+These names are exported from `mt5cli` and enumerated in
 `mt5cli.STABLE_SDK_EXPORTS` (defined in `mt5cli.contract`).
 
 ### Session lifecycle and configuration
@@ -33,23 +45,9 @@ These names are exported from `mt5cli` and covered by the contract in
 | `MT5Client`                                     | Read-only data client with optional `order_check` / `order_send`                                                                                                                                                                                                                  |
 | `build_config`                                  | Build `pdmt5.Mt5Config` from connection fields; `login` accepts `int \| str \| None` — numeric strings are coerced to `int`, blank strings are treated as unset, and `${ENV_VAR}` / `$ENV_NAME` placeholders in string parameters are expanded when `allow_whole_dollar_env=True` |
 | `mt5_session`                                   | Context manager: initialize, login, yield client, shutdown                                                                                                                                                                                                                        |
-| `create_trading_client`, `mt5_trading_session`  | Trading-capable `pdmt5.Mt5TradingClient` lifecycle                                                                                                                                                                                                                                |
+| `create_trading_client`, `mt5_trading_session`  | Trading-capable MT5 client lifecycle; returns a client supporting order execution and account management                                                                                                                                                                          |
 | `AccountSpec`                                   | Generic account group: symbols plus optional credentials                                                                                                                                                                                                                          |
 | `resolve_account_spec`, `resolve_account_specs` | Merge overrides and expand `${ENV_VAR}` placeholders; opt-in `allow_whole_dollar_env` for bare `$NAME`                                                                                                                                                                            |
-| `substitute_env_placeholders`                   | Replace `${NAME}` substrings from the environment; opt-in `allow_whole_dollar_env` for whole-value `$NAME`                                                                                                                                                                        |
-| `substitute_mapping_values`                     | Recursively traverse a dict/list/scalar structure and substitute `${ENV_VAR}` placeholders for caller-selected mapping keys only; optionally normalise blank strings to `None` for a separate caller-selected key set; does not hard-code any application-specific key names      |
-
-Credential resolution is generic: any environment variable name may appear inside
-`${...}`. mt5cli does not hard-code application-specific keys such as
-`mt5_login` or `mt5_exe`.
-
-Pass `allow_whole_dollar_env=True` to `substitute_env_placeholders()`,
-`substitute_mapping_values()`, `resolve_account_spec()`, `resolve_account_specs()`,
-and `build_config()` to additionally expand strings whose entire value is a bare
-`$ENV_NAME` identifier.
-Partial strings such as `"plan$pass"`, `"abc$ENV"`, or `"$ENV-suffix"` are
-**never** expanded — only an exact `$IDENTIFIER` whole-string match qualifies.
-Default is `False` to preserve backward compatibility.
 
 ### Closed-bar rate helpers
 
@@ -61,7 +59,7 @@ timestamp normalization in downstream apps.
 | ------------------------------------------------ | ------------------------------------------------------------------------------- |
 | `drop_forming_rate_bar`                          | Remove the last row from chronologically ordered rate data                      |
 | `fetch_latest_closed_rates`                      | Single connected client: fetch `count + 1`, drop forming bar                    |
-| `fetch_latest_closed_rates_for_trading_client`   | Closed bars from an active `Mt5TradingClient` session; returns RangeIndex       |
+| `fetch_latest_closed_rates_for_trading_client`   | Closed bars from an active trading client session; returns RangeIndex           |
 | `fetch_latest_closed_rates_indexed`              | Same as above but returns a UTC `DatetimeIndex` named `"time"` (no time column) |
 | `collect_latest_closed_rates_for_accounts`       | Multi-account closed bars with optional retry wrapper                           |
 | `collect_latest_closed_rates_by_granularity`     | Same data keyed by `(symbol, granularity_name)`                                 |
@@ -69,20 +67,13 @@ timestamp normalization in downstream apps.
 
 ### SQLite history collection and rate loading
 
-| Symbol                                                                                                                        | Role                                                                                         |
+| Symbol                                                            | Role                                                                                         |
-| ----------------------------------------------------------------------------------------------------------------------------- | -------------------------------------------------------------------------------------------- |
+| ----------------------------------------------------------------- | -------------------------------------------------------------------------------------------- |
-| `collect_history`                                                                                                             | One-shot date-range export into SQLite                                                       |
+| `collect_history`                                                 | One-shot date-range export into SQLite                                                       |
-| `update_history`, `update_history_with_config`                                                                                | Incremental append from `MAX(time)` cursors                                                  |
+| `update_history`, `update_history_with_config`                    | Incremental append from `MAX(time)` cursors                                                  |
-| `ThrottledHistoryUpdater`                                                                                                     | Minimum interval between successful incremental updates; optional `update_backend` injection |
+| `ThrottledHistoryUpdater`                                         | Minimum interval between successful incremental updates; optional `update_backend` injection |
-| `resolve_history_datasets`, `resolve_history_timeframes`, `resolve_history_tick_flags`                                        | History pipeline configuration                                                               |
+| `RateTarget`, `build_rate_targets`                                | Neutral `(symbol, timeframe)` series descriptors                                             |
-| `build_rate_view_name`, `resolve_rate_table_name`, `resolve_rate_view_name`, `resolve_rate_view_names`, `resolve_rate_tables` | Map symbols/timeframes to mt5cli-managed table or view names                                 |
+| `load_rate_series_from_sqlite`, `load_rate_series_by_granularity` | Load one or many series; fail clearly when managed views are missing                         |
-| `RateTarget`, `build_rate_targets`                                                                                            | Neutral `(symbol, timeframe)` series descriptors                                             |
-| `load_rate_data`, `load_rate_data_from_connection`                                                                            | Load one table/view into a time-indexed DataFrame                                            |
-| `load_rate_series_from_sqlite`, `load_rate_series_by_granularity`                                                             | Load one or many series; fail clearly when managed views are missing                         |
-
-Pass `require_existing=True` to rate view resolution helpers when downstream
-code must fail instead of receiving a best-guess view name. Multi-series loaders
-require existing managed `rate_*__*` views unless `explicit_tables` is supplied.
 
 See [History Collection (SQLite)](history.md) for schema, view naming, and ER
 diagrams.
@@ -123,7 +114,7 @@ strategy policy.
 `MT5Client.order_send()` and CLI `order-send --yes` are live execution paths.
 
 Order helpers validate broker stop-level distance in `determine_order_limits()` and
-raise `Mt5TradingError` when computed SL/TP prices are too close to the entry
+raise `Mt5OperationError` when computed SL/TP prices are too close to the entry
 quote. Validation uses `trade_stops_level * point` from the current quote and
 symbol metadata as a pre-check only; it does not guarantee live order acceptance
 after price movement and does not inspect `trade_freeze_level`. Live
@@ -133,51 +124,25 @@ sending requests. Failed, malformed, or unknown broker retcodes are fail-closed
 and returned as `status="failed"` with normalized `request` / `response` details;
 `dry_run=True` never calls `ensure_symbol_selected()` or `order_send()`.
 
-### Errors and MT5 type re-exports
+### Errors
 
-| Symbol                                                                               | Role                                            |
+| Symbol                                                                     | Role                          |
-| ------------------------------------------------------------------------------------ | ----------------------------------------------- |
+| -------------------------------------------------------------------------- | ----------------------------- |
-| `Mt5CliError`, `Mt5ConnectionError`, `Mt5OperationError`, `Mt5SchemaError`           | Stable mt5cli exception types                   |
+| `Mt5CliError`, `Mt5ConnectionError`, `Mt5OperationError`, `Mt5SchemaError` | Stable mt5cli exception types |
-| `normalize_mt5_exception`, `call_with_normalized_errors`, `is_recoverable_mt5_error` | Error normalization and retry classification    |
-| `Mt5Config`, `Mt5RuntimeError`, `Mt5TradingClient`, `Mt5TradingError`                | Re-exported pdmt5 types for adapter convenience |
 
-## Secondary public exports
+## Module-scoped helpers
 
-These names remain importable from `mt5cli` and are covered by
+Lower-level helpers are available from their owning modules and are not part
-`SECONDARY_PUBLIC_EXPORTS`, but they are oriented toward CLI/export/schema
+of the package-root stable surface. Import them directly when needed:
-integrations, parsing, and lower-level MT5 access rather than the stable core
-SDK surface. Prefer the stable symbols above for downstream infrastructure
-adapters.
 
-### Read-only MT5 data wrappers
+| Module              | Examples                                                                                       |
-
+| ------------------- | ---------------------------------------------------------------------------------------------- |
-Module-level helpers open a transient connection per call. Prefer `mt5_session`
+| `mt5cli.history`    | `resolve_rate_view_name`, `resolve_rate_tables`, `load_rate_data`, `build_rate_view_name`      |
-or `MT5Client` when making many requests in one process.
+| `mt5cli.sdk`        | `copy_rates_from`, `copy_ticks_from`, `account_info`, `symbols`, `mt5_summary`, `latest_rates` |
-
+| `mt5cli.schemas`    | `DataKind`, `normalize_dataframe`, `validate_schema`, `DEDUP_KEYS`                             |
-| Area                 | Symbols                                                                                              |
+| `mt5cli.utils`      | `Dataset`, `IfExists`, `detect_format`, `export_dataframe`, `export_dataframe_to_sqlite`       |
-| -------------------- | ---------------------------------------------------------------------------------------------------- |
+| `mt5cli.converters` | `normalize_symbol`, `ensure_utc`, `parse_date_range`, `granularity_name`                       |
-| Rates                | `copy_rates_from`, `copy_rates_from_pos`, `copy_rates_range`, `latest_rates`, `collect_latest_rates` |
+| `mt5cli.exceptions` | `normalize_mt5_exception`, `call_with_normalized_errors`, `is_recoverable_mt5_error`           |
-| Ticks                | `copy_ticks_from`, `copy_ticks_range`, `recent_ticks`                                                |
-| Account / terminal   | `account_info`, `terminal_info`, `mt5_version`, `last_error`, `mt5_summary`, `mt5_summary_as_df`     |
-| Symbols / market     | `symbols`, `symbol_info`, `symbol_info_tick`, `market_book`, `minimum_margins`                       |
-| Trading state (read) | `orders`, `positions`, `history_orders`, `history_deals`, `recent_history_deals`                     |
-| Multi-account rates  | `collect_latest_rates_for_accounts`                                                                  |
-
-Use `mt5_version` for MetaTrader 5 terminal version data. The name `version` at
-the package root refers to `importlib.metadata.version` (package metadata), not
-the MT5 SDK helper.
-
-### Schema, export, and parser helpers
-
-| Area                 | Symbols                                                                                                       |
-| -------------------- | ------------------------------------------------------------------------------------------------------------- |
-| Dataset contracts    | `DataKind`, `Dataset`, `IfExists`, `DEDUP_KEYS`, `REQUIRED_COLUMNS`, `TIME_COLUMNS`, `KNOWN_MT5_TIME_COLUMNS` |
-| Schema normalization | `normalize_dataframe`, `normalize_time_columns`, `schema_columns`, `validate_schema`                          |
-| Export helpers       | `detect_format`, `export_dataframe`, `export_dataframe_to_sqlite`                                             |
-| Symbol parsing       | `normalize_symbol`, `normalize_symbols`                                                                       |
-| Time parsing         | `ensure_utc`, `parse_date_range`, `parse_datetime`, `recent_window`                                           |
-| MT5 parsing maps     | `granularity_name`, `parse_tick_flags`, `parse_timeframe`, `TICK_FLAG_MAP`, `TIMEFRAME_MAP`                   |
-| Trading data shapes  | `POSITION_COLUMNS`                                                                                            |
 
 ## CLI commands
 
@@ -231,7 +196,7 @@ their own adapter layer.
 
 ## Contract verification
 
-`tests/test_contracts.py` asserts that every name in the stable and secondary
+`tests/test_contracts.py` asserts that every name in `STABLE_SDK_EXPORTS` is
-tier sets is importable from `mt5cli`, documents key closed-bar, rate-view,
+importable from `mt5cli`, that all package-root exports are covered by the
-SQLite loading, account-resolution, and trading-session behaviors, and keeps the
+stable set, and documents key closed-bar, SQLite loading, account-resolution,
-tier sets aligned with `__all__`.
+and trading-session behaviors.

docs/api/sdk.md

@@ -117,7 +117,8 @@ call it every iteration without over-fetching.
 ```python
 from pdmt5 import Mt5Config, Mt5DataClient
 
-from mt5cli import Dataset, ThrottledHistoryUpdater
+from mt5cli import ThrottledHistoryUpdater
+from mt5cli.utils import Dataset
 
 updater = ThrottledHistoryUpdater(
     output="history.db",

docs/api/storage.md

@@ -1,3 +0,0 @@
-# Storage
-
-::: mt5cli.storage

docs/api/trading.md

@@ -6,8 +6,9 @@
 
 `create_trading_client()` and `mt5_trading_session()` complement the read-only
 `mt5_session()` helper in `sdk.py`. They return or yield an initialized
-`pdmt5.Mt5TradingClient`, use `Mt5Config.path` to launch the terminal when
+client supporting order execution and account management, use `Mt5Config.path`
-configured, and `mt5_trading_session()` always calls `shutdown()` on exit.
+to launch the terminal when configured, and `mt5_trading_session()` always
+calls `shutdown()` on exit.
 
 ```python
 from mt5cli import create_trading_client, mt5_trading_session
@@ -115,19 +116,19 @@ closed = close_open_positions(client, symbols="EURUSD", dry_run=True)
 `detect_position_side()` returns `long` for buy-only exposure, `short` for
 sell-only exposure, and `None` for no positions or mixed long/short exposure.
 `calculate_spread_ratio()` uses `(ask - bid) / ((ask + bid) / 2)` and raises
-`Mt5TradingError` when bid or ask is missing or non-positive.
+`Mt5OperationError` when bid or ask is missing or non-positive.
 `normalize_order_volume()` returns `0.0` for invalid constraints or
 sub-minimum requests; check the result before calling `estimate_order_margin()`,
 which requires a positive finite volume. `calculate_positions_margin()` silently
 skips rows with missing symbols, non-positive volumes, non-finite volumes, or
-unsupported position types, but propagates `Mt5TradingError` from `estimate_order_margin()` when a valid row
+unsupported position types, but propagates `Mt5OperationError` from `estimate_order_margin()` when a valid row
 encounters invalid tick data or margin results from the broker.
 
 SL/TP ratios for `determine_order_limits()` must satisfy `0 <= ratio < 1`; `0`
 omits that level. SL/TP prices are rounded with symbol `digits` metadata when
 available. `determine_order_limits()` pre-validates computed SL/TP prices against
 available `trade_stops_level * point` metadata when present; violations raise
-`Mt5TradingError`. This is a planning helper only: it does not guarantee broker
+`Mt5OperationError`. This is a planning helper only: it does not guarantee broker
 acceptance because live validation can still depend on price movement, bid/ask
 side, freeze levels, and server-side rules, and it does not validate
 `trade_freeze_level`. When symbol metadata cannot be loaded, protective prices

docs/index.md

@@ -27,6 +27,12 @@ mt5cli provides a stable `MT5Client` Python API, standardized dataset schemas, s
 pip install mt5cli
 ```
 
+Parquet export is not included by default. To enable it, install the `parquet` extra:
+
+```bash
+pip install "mt5cli[parquet]"
+```
+
 ## Python API for downstream packages
 
 Import `MT5Client` for generic MT5 data access, schema normalization, and optional order primitives.
@@ -36,19 +42,15 @@ from datetime import UTC, datetime
 from pathlib import Path
 
 from mt5cli import (
-    DataKind,
-    Dataset,
     MT5Client,
     build_config,
     collect_history,
-    export_dataframe,
-    load_rate_data,
-    minimum_margins,
     mt5_session,
-    normalize_dataframe,
-    recent_ticks,
-    resolve_rate_view_name,
 )
+from mt5cli.history import load_rate_data, resolve_rate_view_name
+from mt5cli.schemas import DataKind, normalize_dataframe
+from mt5cli.sdk import minimum_margins, recent_ticks
+from mt5cli.utils import Dataset, export_dataframe
 
 # Persistent session for multiple calls
 with mt5_session(build_config(login=12345, server="Broker-Demo")) as client:
@@ -84,7 +86,7 @@ collect_history(
 )
 ```
 
-Schema contracts live in `mt5cli.schemas` (`DataKind`, `validate_schema`, `normalize_dataframe`). Storage helpers are re-exported from `mt5cli.storage` and the package root.
+Schema contracts live in `mt5cli.schemas` (`DataKind`, `validate_schema`, `normalize_dataframe`). Export and storage helpers are in `mt5cli.utils` (`Dataset`, `export_dataframe`) and `mt5cli.history`.
 
 `MT5Client.order_send()` is a live execution primitive: it can place real trades on the connected account. mt5cli does not implement strategy logic, signal generation, backtesting, or optimization — downstream applications must gate live execution explicitly (the CLI requires `--yes` for `order-send`).
 
@@ -145,26 +147,38 @@ mt5cli --login 12345 --password mypass --server MyBroker-Demo \
 | `minimum-margins`  | Export minimum-volume margin summary    |
 | `market-book`      | Export market depth (order book)        |
 
-### Trading
+### Trading State
 
-| Command                | Description                                                 |
+| Command                | Description                                                         |
-| ---------------------- | ----------------------------------------------------------- |
+| ---------------------- | ------------------------------------------------------------------- |
-| `orders`               | Export active orders                                        |
+| `orders`               | Export active orders                                                |
-| `positions`            | Export open positions                                       |
+| `positions`            | Export open positions                                               |
-| `history-orders`       | Export historical orders                                    |
+| `history-orders`       | Export historical orders                                            |
-| `history-deals`        | Export historical deals                                     |
+| `history-deals`        | Export historical deals                                             |
-| `recent-history-deals` | Export historical deals from a trailing window              |
+| `recent-history-deals` | Export historical deals from a trailing window                      |
-| `mt5-summary`          | Export terminal/account status summary                      |
+| `mt5-summary`          | Export terminal/account status summary                              |
-| `order-check`          | Check funds sufficiency for a trade request                 |
+| `order-check`          | Check funds sufficiency for a trade request (read-only, no `--yes`) |
-| `order-send`           | Send a trade request to the trade server (`--yes` required) |
 
-Use `order-check` to validate a request payload before running `order-send --yes`.
+### Execution (live / mutating)
+
+These commands send requests to the live trade server and can place or close
+real trades. Both require `--yes` for live execution.
+
+| Command           | Description                                                                                          |
+| ----------------- | ---------------------------------------------------------------------------------------------------- |
+| `order-send`      | Send a **raw** trade request directly to MT5 (`--yes` required; expert path — no extra validation)   |
+| `close-positions` | Close open positions by `--symbol` or `--ticket` (`--yes` required for live; `--dry-run` to preview) |
+
+Use `order-check` (Trading State) to validate funds before running `order-send --yes`.
+`close-positions` is the safer high-level alternative that builds correct close
+requests automatically. `order-send` is the expert raw path — downstream
+applications should prefer dedicated closing helpers or their own risk controls.
 
 ### Bulk Collection
 
-| Command           | Description                                                                                                                                        |
+| Command           | Description                                                                                                                                                                      |
-| ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------- |
+| ----------------- | -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
-| `collect-history` | Collect rates, ticks, history-orders, and history-deals for one or more symbols into a single SQLite database (optional cash-event/position views) |
+| `collect-history` | Collect rates, history-orders, and history-deals (ticks opt-in via `--dataset ticks`) for one or more symbols into a single SQLite database (optional cash-event/position views) |
 
 ```bash
 mt5cli -o history.db collect-history \
@@ -176,16 +190,16 @@ mt5cli -o history.db collect-history \
 
 `collect-history` options:
 
-| Option         | Default    | Description                                                                                   |
+| Option         | Default                              | Description                                                                                                                |
-| -------------- | ---------- | --------------------------------------------------------------------------------------------- |
+| -------------- | ------------------------------------ | -------------------------------------------------------------------------------------------------------------------------- |
-| `--symbol/-s`  | _required_ | Symbol to collect (repeat for multiple).                                                      |
+| `--symbol/-s`  | _required_                           | Symbol to collect (repeat for multiple).                                                                                   |
-| `--date-from`  | _required_ | Start date in ISO 8601.                                                                       |
+| `--date-from`  | _required_                           | Start date in ISO 8601.                                                                                                    |
-| `--date-to`    | _required_ | End date in ISO 8601.                                                                         |
+| `--date-to`    | _required_                           | End date in ISO 8601.                                                                                                      |
-| `--dataset`    | all four   | Repeatable: `rates`, `ticks`, `history-orders`, `history-deals`.                              |
+| `--dataset`    | rates, history-orders, history-deals | Repeatable: `rates`, `ticks`, `history-orders`, `history-deals`. Ticks are opt-in: pass `--dataset ticks` to include them. |
-| `--timeframe`  | `M1`       | Rates timeframe; recorded in a `timeframe` column on the `rates` table.                       |
+| `--timeframe`  | `M1`                                 | Rates timeframe; recorded in a `timeframe` column on the `rates` table.                                                    |
-| `--flags`      | `ALL`      | Tick copy flags forwarded to `copy_ticks_range`.                                              |
+| `--flags`      | `ALL`                                | Tick copy flags forwarded to `copy_ticks_range`.                                                                           |
-| `--if-exists`  | `fail`     | `append`, `replace`, or `fail` when a target table already exists.                            |
+| `--if-exists`  | `fail`                               | `append`, `replace`, or `fail` when a target table already exists.                                                         |
-| `--with-views` | off        | Add `cash_events` and `positions_reconstructed` views (requires the `history-deals` dataset). |
+| `--with-views` | off                                  | Add `cash_events` and `positions_reconstructed` views (requires the `history-deals` dataset).                              |
 
 History orders and deals are fetched per symbol and concatenated, so the symbol filter is applied consistently across all datasets. The `cash_events` view is derived from symbol-filtered `history_deals`, so account-level cash events with empty or non-matching symbols may be excluded. The `positions_reconstructed` view excludes positions with no closing deal, uses volume-weighted open/close prices, and reports reversal deals (`DEAL_ENTRY_INOUT`) via `volume_reversal` / `reversal_count`.
 
@@ -215,7 +229,7 @@ See the [History schema diagram](api/history.md#entity-relationship-diagram) for
 
 Browse the API documentation for detailed module information:
 
-- [CLI Module](api/cli.md) - CLI application with export commands
+- [CLI Module](api/cli.md) - CLI application with data export and execution commands
 - [SDK Module](api/sdk.md) - Programmatic read-only data collection API
 - [Utils Module](api/utils.md) - Constants, parameter types, parsers, and export utilities
 

mkdocs.yml

@@ -59,7 +59,6 @@ nav:
       - Public API Contract: api/public-contract.md
       - Client: api/client.md
       - Schemas: api/schemas.md
-      - Storage: api/storage.md
       - Converters: api/converters.md
       - Exceptions: api/exceptions.md
       - CLI: api/cli.md

mt5cli/__init__.py

@@ -8,110 +8,35 @@ strategy responsibilities.
 
 from importlib.metadata import version
 
-from pdmt5 import Mt5Config, Mt5RuntimeError, Mt5TradingClient, Mt5TradingError
-
 from .client import MT5Client, build_config, mt5_session
-from .contract import (
+from .contract import STABLE_SDK_EXPORTS
-    PUBLIC_EXPORT_TIERS,
-    SECONDARY_PUBLIC_EXPORTS,
-    STABLE_SDK_EXPORTS,
-)
-from .converters import (
-    ensure_utc,
-    granularity_name,
-    normalize_symbol,
-    normalize_symbols,
-    parse_date_range,
-    recent_window,
-)
 from .exceptions import (
     Mt5CliError,
     Mt5ConnectionError,
     Mt5OperationError,
     Mt5SchemaError,
-    call_with_normalized_errors,
-    is_recoverable_mt5_error,
-    normalize_mt5_exception,
 )
 from .history import (
     RateTarget,
     build_rate_targets,
-    build_rate_view_name,
     drop_forming_rate_bar,
-    load_rate_data,
-    load_rate_data_from_connection,
     load_rate_series_by_granularity,
     load_rate_series_from_sqlite,
-    resolve_history_datasets,
-    resolve_history_tick_flags,
-    resolve_history_timeframes,
-    resolve_rate_table_name,
-    resolve_rate_tables,
-    resolve_rate_view_name,
-    resolve_rate_view_names,
-)
-from .schemas import (
-    DEDUP_KEYS,
-    KNOWN_MT5_TIME_COLUMNS,
-    REQUIRED_COLUMNS,
-    TIME_COLUMNS,
-    DataKind,
-    normalize_dataframe,
-    normalize_time_columns,
-    schema_columns,
-    validate_schema,
 )
 from .sdk import (
     AccountSpec,
     ThrottledHistoryUpdater,
-    account_info,
     collect_history,
     collect_latest_closed_rates_by_granularity,
     collect_latest_closed_rates_for_accounts,
-    collect_latest_rates,
-    collect_latest_rates_for_accounts,
     collect_latest_rates_for_accounts_with_retries,
-    copy_rates_from,
-    copy_rates_from_pos,
-    copy_rates_range,
-    copy_ticks_from,
-    copy_ticks_range,
     fetch_latest_closed_rates,
-    history_deals,
-    history_orders,
-    last_error,
-    latest_rates,
-    market_book,
-    minimum_margins,
-    mt5_summary,
-    mt5_summary_as_df,
-    orders,
-    positions,
-    recent_history_deals,
-    recent_ticks,
     resolve_account_spec,
     resolve_account_specs,
-    substitute_env_placeholders,
-    substitute_mapping_values,
-    symbol_info,
-    symbol_info_tick,
-    symbols,
-    terminal_info,
     update_history,
     update_history_with_config,
 )
-from .sdk import (
-    version as mt5_version,
-)
-from .storage import (
-    Dataset,
-    IfExists,
-    detect_format,
-    export_dataframe,
-    export_dataframe_to_sqlite,
-)
 from .trading import (
-    POSITION_COLUMNS,
     ExecutionStatus,
     MarginVolume,
     OrderExecutionResult,
@@ -151,42 +76,19 @@ from .trading import (
     update_sltp_for_open_positions,
     update_trailing_stop_loss_for_open_positions,
 )
-from .utils import (
-    TICK_FLAG_MAP,
-    TIMEFRAME_MAP,
-    parse_datetime,
-    parse_tick_flags,
-    parse_timeframe,
-)
 
 __version__ = version(__package__) if __package__ else None
 
 __all__ = [
-    "DEDUP_KEYS",
-    "KNOWN_MT5_TIME_COLUMNS",
-    "POSITION_COLUMNS",
-    "PUBLIC_EXPORT_TIERS",
-    "REQUIRED_COLUMNS",
-    "SECONDARY_PUBLIC_EXPORTS",
     "STABLE_SDK_EXPORTS",
-    "TICK_FLAG_MAP",
-    "TIMEFRAME_MAP",
-    "TIME_COLUMNS",
     "AccountSpec",
-    "DataKind",
-    "Dataset",
     "ExecutionStatus",
-    "IfExists",
     "MT5Client",
     "MarginVolume",
     "Mt5CliError",
-    "Mt5Config",
     "Mt5ConnectionError",
     "Mt5OperationError",
-    "Mt5RuntimeError",
     "Mt5SchemaError",
-    "Mt5TradingClient",
-    "Mt5TradingError",
     "OrderExecutionResult",
     "OrderFillingMode",
     "OrderLimits",
@@ -196,10 +98,8 @@ __all__ = [
     "ProjectionMode",
     "RateTarget",
     "ThrottledHistoryUpdater",
-    "account_info",
     "build_config",
     "build_rate_targets",
-    "build_rate_view_name",
     "calculate_account_projected_margin_ratio",
     "calculate_margin_and_volume",
     "calculate_new_position_margin_ratio",
@@ -211,29 +111,17 @@ __all__ = [
     "calculate_symbol_group_margin_ratio",
     "calculate_trailing_stop_updates",
     "calculate_volume_by_margin",
-    "call_with_normalized_errors",
     "close_open_positions",
     "collect_history",
     "collect_latest_closed_rates_by_granularity",
     "collect_latest_closed_rates_for_accounts",
-    "collect_latest_rates",
-    "collect_latest_rates_for_accounts",
     "collect_latest_rates_for_accounts_with_retries",
-    "copy_rates_from",
-    "copy_rates_from_pos",
-    "copy_rates_range",
-    "copy_ticks_from",
-    "copy_ticks_range",
     "create_trading_client",
-    "detect_format",
     "detect_position_side",
     "determine_order_limits",
     "drop_forming_rate_bar",
     "ensure_symbol_selected",
-    "ensure_utc",
     "estimate_order_margin",
-    "export_dataframe",
-    "export_dataframe_to_sqlite",
     "extract_tick_price",
     "fetch_latest_closed_rates",
     "fetch_latest_closed_rates_for_trading_client",
@@ -242,58 +130,16 @@ __all__ = [
     "get_positions_frame",
     "get_symbol_snapshot",
     "get_tick_snapshot",
-    "granularity_name",
-    "history_deals",
-    "history_orders",
-    "is_recoverable_mt5_error",
-    "last_error",
-    "latest_rates",
-    "load_rate_data",
-    "load_rate_data_from_connection",
     "load_rate_series_by_granularity",
     "load_rate_series_from_sqlite",
-    "market_book",
-    "minimum_margins",
     "mt5_session",
-    "mt5_summary",
-    "mt5_summary_as_df",
     "mt5_trading_session",
-    "mt5_version",
-    "normalize_dataframe",
-    "normalize_mt5_exception",
     "normalize_order_volume",
-    "normalize_symbol",
-    "normalize_symbols",
-    "normalize_time_columns",
-    "orders",
-    "parse_date_range",
-    "parse_datetime",
-    "parse_tick_flags",
-    "parse_timeframe",
     "place_market_order",
-    "positions",
-    "recent_history_deals",
-    "recent_ticks",
-    "recent_window",
     "resolve_account_spec",
     "resolve_account_specs",
-    "resolve_history_datasets",
-    "resolve_history_tick_flags",
-    "resolve_history_timeframes",
-    "resolve_rate_table_name",
-    "resolve_rate_tables",
-    "resolve_rate_view_name",
-    "resolve_rate_view_names",
-    "schema_columns",
-    "substitute_env_placeholders",
-    "substitute_mapping_values",
-    "symbol_info",
-    "symbol_info_tick",
-    "symbols",
-    "terminal_info",
     "update_history",
     "update_history_with_config",
     "update_sltp_for_open_positions",
     "update_trailing_stop_loss_for_open_positions",
-    "validate_schema",
 ]

mt5cli/cli.py

@@ -1,4 +1,4 @@
-"""Command-line interface for MetaTrader 5 data export."""
+"""Command-line interface for MetaTrader 5 data and execution utilities."""
 
 from __future__ import annotations
 
@@ -55,7 +55,12 @@ class _ExportContext:
 
 app = typer.Typer(
     name="mt5cli",
-    help="Export MetaTrader5 data to CSV, JSON, Parquet, or SQLite3.",
+    help=(
+        "MT5 data and execution utilities — read market data, inspect account"
+        " state, and send trade requests. Data commands write to CSV, JSON,"
+        " Parquet, or SQLite3. Execution commands (order-send, close-positions)"
+        " require --yes for live mutations."
+    ),
 )
 
 _REQUEST_OPTION_HELP = (
@@ -151,7 +156,7 @@ def _callback(  # pyright: ignore[reportUnusedFunction]
         typer.Option("--log-level", help="Logging level."),
     ] = LogLevel.WARNING,
 ) -> None:
-    """Configure shared options for all export commands.
+    """Configure shared connection and output options.
 
     Raises:
         typer.BadParameter: If the output format cannot be determined.
@@ -183,7 +188,7 @@ def _callback(  # pyright: ignore[reportUnusedFunction]
 # ---------------------------------------------------------------------------
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def rates_from(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -210,7 +215,7 @@ def rates_from(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def rates_from_pos(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -236,7 +241,7 @@ def rates_from_pos(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def latest_rates(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -265,7 +270,7 @@ def latest_rates(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def rates_range(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -292,7 +297,7 @@ def rates_range(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def ticks_from(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -316,7 +321,7 @@ def ticks_from(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def ticks_range(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -340,7 +345,7 @@ def ticks_range(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def ticks_recent(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -377,19 +382,19 @@ def ticks_recent(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def account_info(ctx: typer.Context) -> None:
     """Export account information."""
     _export_command(ctx, lambda client: client.account_info())
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def terminal_info(ctx: typer.Context) -> None:
     """Export terminal information."""
     _export_command(ctx, lambda client: client.terminal_info())
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def symbols(
     ctx: typer.Context,
     group: Annotated[
@@ -401,7 +406,7 @@ def symbols(
     _export_command(ctx, lambda client: client.symbols(group=group))
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def symbol_info(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -410,7 +415,7 @@ def symbol_info(
     _export_command(ctx, lambda client: client.symbol_info(symbol))
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def minimum_margins(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -419,7 +424,7 @@ def minimum_margins(
     _export_command(ctx, lambda client: client.minimum_margins(symbol))
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def orders(
     ctx: typer.Context,
     symbol: Annotated[str | None, typer.Option(help="Symbol filter.")] = None,
@@ -433,7 +438,7 @@ def orders(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def positions(
     ctx: typer.Context,
     symbol: Annotated[str | None, typer.Option(help="Symbol filter.")] = None,
@@ -447,7 +452,7 @@ def positions(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def history_orders(
     ctx: typer.Context,
     date_from: Annotated[
@@ -477,7 +482,7 @@ def history_orders(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def history_deals(
     ctx: typer.Context,
     date_from: Annotated[
@@ -507,7 +512,7 @@ def history_deals(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def recent_history_deals(
     ctx: typer.Context,
     hours: Annotated[float, typer.Option(help="Lookback window in hours.")],
@@ -530,25 +535,25 @@ def recent_history_deals(
     )
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def mt5_summary(ctx: typer.Context) -> None:
     """Export a compact terminal/account status summary."""
     _export_command(ctx, lambda client: client.mt5_summary_as_df())
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def version(ctx: typer.Context) -> None:
     """Export MetaTrader5 version information."""
     _export_command(ctx, lambda client: client.version())
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def last_error(ctx: typer.Context) -> None:
     """Export the last error information."""
     _export_command(ctx, lambda client: client.last_error())
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def symbol_info_tick(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -557,7 +562,7 @@ def symbol_info_tick(
     _export_command(ctx, lambda client: client.symbol_info_tick(symbol))
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def market_book(
     ctx: typer.Context,
     symbol: Annotated[str, typer.Option(help="Symbol name.")],
@@ -566,7 +571,7 @@ def market_book(
     _export_command(ctx, lambda client: client.market_book(symbol))
 
 
-@app.command()
+@app.command(rich_help_panel="Data / Export")
 def order_check(
     ctx: typer.Context,
     request: Annotated[
@@ -578,7 +583,7 @@ def order_check(
     _export_command(ctx, lambda client: client.order_check(request))
 
 
-@app.command()
+@app.command(rich_help_panel="Execution")
 def order_send(
     ctx: typer.Context,
     request: Annotated[
@@ -590,7 +595,13 @@ def order_send(
         typer.Option("--yes", help="Confirm the live trade request."),
     ] = False,
 ) -> None:
-    """Send a trading operation request to the trade server.
+    """Send a raw trade request to the trade server (expert path, live execution).
+
+    Passes the request JSON directly to MT5 ``order_send``. This is the
+    low-level expert path — it places real trades on the connected account
+    with no additional validation beyond what MT5 itself performs. Use
+    ``order-check`` first to validate funds sufficiency. Prefer
+    ``close-positions`` for closing open positions. ``--yes`` is required.
 
     Raises:
         typer.BadParameter: If --yes is not provided.
@@ -628,7 +639,7 @@ def _execution_results_to_df(results: list[OrderExecutionResult]) -> pd.DataFram
     return pd.DataFrame(rows)
 
 
-@app.command()
+@app.command(rich_help_panel="Execution")
 def close_positions(
     ctx: typer.Context,
     symbol: Annotated[
@@ -691,7 +702,7 @@ def close_positions(
     _execute_export(ctx, lambda: df)
 
 
-@app.command()
+@app.command(rich_help_panel="Collection")
 def collect_history(
     ctx: typer.Context,
     symbol: Annotated[
@@ -716,7 +727,8 @@ def collect_history(
             "--dataset",
             help=(
                 "Dataset to include (repeat for multiple)."
-                " Defaults to all: rates, ticks, history-orders, history-deals."
+                " Defaults to rates, history-orders, history-deals."
+                " Ticks are opt-in: pass --dataset ticks to include them."
             ),
         ),
     ] = None,
@@ -754,10 +766,12 @@ def collect_history(
 ) -> None:
     """Collect historical datasets into a single SQLite database.
 
-    Tables written depend on ``--dataset``: ``rates``, ``ticks``,
+    Tables written depend on ``--dataset``: ``rates``, ``history_orders``,
-    ``history_orders``, ``history_deals``. History datasets are fetched per
+    ``history_deals`` by default. ``ticks`` are opt-in: pass
-    symbol and concatenated. Rates rows carry the requested ``timeframe`` so
+    ``--dataset ticks`` to include them (tick data grows the database quickly).
-    appended runs at different timeframes remain distinguishable.
+    History datasets are fetched per symbol and concatenated. Rates rows carry
+    the requested ``timeframe`` so appended runs at different timeframes remain
+    distinguishable.
 
     With ``--with-views`` (requires the ``history-deals`` dataset), optional
     views ``cash_events`` and ``positions_reconstructed`` are derived from
@@ -773,7 +787,7 @@ def collect_history(
             " Use a .db/.sqlite/.sqlite3 extension or --format sqlite3."
         )
         raise typer.BadParameter(msg)
-    datasets = set(dataset) if dataset else set(Dataset)
+    datasets = set(dataset) if dataset is not None else None
     sdk.collect_history(
         output=export_ctx.output,
         symbols=symbol,

mt5cli/contract.py

@@ -1,4 +1,4 @@
-"""Downstream SDK export tiers for mt5cli."""
+"""Downstream SDK export tier for mt5cli."""
 
 from __future__ import annotations
 
@@ -6,13 +6,9 @@ STABLE_SDK_EXPORTS: frozenset[str] = frozenset({
     "AccountSpec",
     "MT5Client",
     "Mt5CliError",
-    "Mt5Config",
     "Mt5ConnectionError",
     "Mt5OperationError",
-    "Mt5RuntimeError",
     "Mt5SchemaError",
-    "Mt5TradingClient",
-    "Mt5TradingError",
     "OrderFillingMode",
     "OrderSide",
     "OrderTimeMode",
@@ -26,7 +22,6 @@ STABLE_SDK_EXPORTS: frozenset[str] = frozenset({
     "ThrottledHistoryUpdater",
     "build_config",
     "build_rate_targets",
-    "build_rate_view_name",
     "calculate_account_projected_margin_ratio",
     "calculate_margin_and_volume",
     "calculate_new_position_margin_ratio",
@@ -38,7 +33,6 @@ STABLE_SDK_EXPORTS: frozenset[str] = frozenset({
     "calculate_symbol_group_margin_ratio",
     "calculate_trailing_stop_updates",
     "calculate_volume_by_margin",
-    "call_with_normalized_errors",
     "close_open_positions",
     "collect_history",
     "collect_latest_closed_rates_by_granularity",
@@ -58,94 +52,18 @@ STABLE_SDK_EXPORTS: frozenset[str] = frozenset({
     "get_positions_frame",
     "get_symbol_snapshot",
     "get_tick_snapshot",
-    "is_recoverable_mt5_error",
-    "load_rate_data",
-    "load_rate_data_from_connection",
     "load_rate_series_by_granularity",
     "load_rate_series_from_sqlite",
     "mt5_session",
     "mt5_trading_session",
-    "normalize_mt5_exception",
     "normalize_order_volume",
     "place_market_order",
     "resolve_account_spec",
     "resolve_account_specs",
-    "resolve_history_datasets",
-    "resolve_history_tick_flags",
-    "resolve_history_timeframes",
-    "resolve_rate_table_name",
-    "resolve_rate_tables",
-    "resolve_rate_view_name",
-    "resolve_rate_view_names",
-    "substitute_env_placeholders",
-    "substitute_mapping_values",
     "update_history",
     "update_history_with_config",
     "update_sltp_for_open_positions",
     "update_trailing_stop_loss_for_open_positions",
 })
 
-SECONDARY_PUBLIC_EXPORTS: frozenset[str] = frozenset({
+__all__ = ["STABLE_SDK_EXPORTS"]
-    "DEDUP_KEYS",
-    "DataKind",
-    "Dataset",
-    "IfExists",
-    "KNOWN_MT5_TIME_COLUMNS",
-    "POSITION_COLUMNS",
-    "REQUIRED_COLUMNS",
-    "TICK_FLAG_MAP",
-    "TIMEFRAME_MAP",
-    "TIME_COLUMNS",
-    "account_info",
-    "collect_latest_rates",
-    "collect_latest_rates_for_accounts",
-    "copy_rates_from",
-    "copy_rates_from_pos",
-    "copy_rates_range",
-    "copy_ticks_from",
-    "copy_ticks_range",
-    "detect_format",
-    "ensure_utc",
-    "export_dataframe",
-    "export_dataframe_to_sqlite",
-    "granularity_name",
-    "history_deals",
-    "history_orders",
-    "last_error",
-    "latest_rates",
-    "market_book",
-    "minimum_margins",
-    "mt5_summary",
-    "mt5_summary_as_df",
-    "mt5_version",
-    "normalize_dataframe",
-    "normalize_symbol",
-    "normalize_symbols",
-    "normalize_time_columns",
-    "orders",
-    "parse_date_range",
-    "parse_datetime",
-    "parse_tick_flags",
-    "parse_timeframe",
-    "positions",
-    "recent_history_deals",
-    "recent_ticks",
-    "recent_window",
-    "schema_columns",
-    "symbol_info",
-    "symbol_info_tick",
-    "symbols",
-    "terminal_info",
-    "validate_schema",
-})
-
-PUBLIC_EXPORT_TIERS: dict[str, frozenset[str]] = {
-    "stable": STABLE_SDK_EXPORTS,
-    "secondary": SECONDARY_PUBLIC_EXPORTS,
-}
-
-__all__ = [
-    "PUBLIC_EXPORT_TIERS",
-    "SECONDARY_PUBLIC_EXPORTS",
-    "STABLE_SDK_EXPORTS",
-]

mt5cli/exceptions.py

@@ -4,11 +4,16 @@ from __future__ import annotations
 
 from typing import TYPE_CHECKING, TypeVar
 
-from pdmt5 import Mt5RuntimeError, Mt5TradingError
+from pdmt5 import Mt5RuntimeError
 
 if TYPE_CHECKING:
     from collections.abc import Callable
 
+try:
+    from pdmt5 import Mt5TradingError
+except ImportError:  # pragma: no cover
+    Mt5TradingError = None  # type: ignore[assignment]
+
 T = TypeVar("T")
 
 __all__ = [
@@ -22,7 +27,7 @@ __all__ = [
 ]
 
 _RECOVERABLE_MT5_ERRORS: tuple[type[BaseException], ...] = (
-    Mt5TradingError,
+    *([Mt5TradingError] if Mt5TradingError is not None else []),  # type: ignore[misc]
     Mt5RuntimeError,
 )
 
@@ -50,7 +55,7 @@ def is_recoverable_mt5_error(exc: BaseException) -> bool:
         exc: Exception raised by MT5 or pdmt5.
 
     Returns:
-        True for ``Mt5RuntimeError`` and ``Mt5TradingError``.
+        True for ``Mt5RuntimeError`` and ``Mt5TradingError`` (if available).
     """
     return isinstance(exc, _RECOVERABLE_MT5_ERRORS)
 
@@ -65,7 +70,7 @@ def normalize_mt5_exception(exc: BaseException) -> Mt5CliError:
         ``Mt5ConnectionError`` for runtime failures, ``Mt5OperationError`` for
         trading failures, or the original exception when it is not recognized.
     """
-    if isinstance(exc, Mt5TradingError):
+    if Mt5TradingError is not None and isinstance(exc, Mt5TradingError):
         return Mt5OperationError(str(exc))
     if isinstance(exc, Mt5RuntimeError):
         return Mt5ConnectionError(str(exc))

mt5cli/history.py

@@ -30,6 +30,11 @@ if TYPE_CHECKING:
 logger = logging.getLogger(__name__)
 
 DEFAULT_HISTORY_TIMEFRAMES: tuple[str, ...] = TIMEFRAME_NAMES
+DEFAULT_HISTORY_DATASETS: frozenset[Dataset] = frozenset({
+    Dataset.rates,
+    Dataset.history_orders,
+    Dataset.history_deals,
+})
 
 _HISTORY_DEDUP_KEYS: dict[Dataset, tuple[tuple[str, ...], ...]] = {
     Dataset.rates: DEDUP_KEYS[DataKind.rates],
@@ -62,11 +67,12 @@ def resolve_history_datasets(datasets: set[Dataset] | None) -> set[Dataset]:
     """Resolve configured history datasets.
 
     Returns:
-        All supported datasets when ``datasets`` is None, otherwise the
+        ``DEFAULT_HISTORY_DATASETS`` (rates, history-orders, history-deals)
-        configured selection (which may be empty).
+        when ``datasets`` is None, otherwise the configured selection (which
+        may be empty or explicitly include ``Dataset.ticks``).
     """
     if datasets is None:
-        return set(Dataset)
+        return set(DEFAULT_HISTORY_DATASETS)
     return set(datasets)
 
 

mt5cli/sdk.py

@@ -15,7 +15,12 @@ from pathlib import Path
 from typing import TYPE_CHECKING, Self, TypeVar, cast
 
 import pandas as pd
-from pdmt5 import Mt5Config, Mt5DataClient, Mt5RuntimeError, Mt5TradingError
+from pdmt5 import Mt5Config, Mt5DataClient, Mt5RuntimeError
+
+try:
+    from pdmt5 import Mt5TradingError
+except ImportError:  # pragma: no cover
+    Mt5TradingError = None  # type: ignore[assignment]
 
 from .history import (
     create_cash_events_view,
@@ -49,7 +54,7 @@ T = TypeVar("T")
 logger = logging.getLogger(__name__)
 
 _RECOVERABLE_HISTORY_UPDATE_ERRORS: tuple[type[BaseException], ...] = (
-    Mt5TradingError,
+    *([Mt5TradingError] if Mt5TradingError is not None else []),  # type: ignore[assignment]
     Mt5RuntimeError,
     sqlite3.Error,
     ValueError,
@@ -976,7 +981,8 @@ def update_history(  # noqa: PLR0913
         client: Connected MT5 data client.
         output: SQLite database path.
         symbols: Symbols to update.
-        datasets: Datasets to include (defaults to all).
+        datasets: Datasets to include (defaults to rates, history-orders,
+            history-deals; pass ``{Dataset.ticks}`` to opt in to ticks).
         timeframes: Rate timeframes to update (defaults to all fixed MT5
             timeframes when None).
         flags: Tick copy flags as integer or name (e.g. ``ALL``).
@@ -1105,7 +1111,8 @@ class ThrottledHistoryUpdater:
 
         Args:
             output: SQLite database path.
-            datasets: Datasets to include (defaults to all).
+            datasets: Datasets to include (defaults to rates, history-orders,
+                history-deals; pass ``{Dataset.ticks}`` to opt in to ticks).
             timeframes: Rate timeframes to update (defaults to all fixed MT5
                 timeframes).
             flags: Tick copy flags as integer or name (e.g. ``ALL``).
@@ -1237,7 +1244,8 @@ def collect_history(
         symbols: Symbols to collect.
         date_from: Start date.
         date_to: End date.
-        datasets: Datasets to include (defaults to all).
+        datasets: Datasets to include (defaults to rates, history-orders,
+            history-deals; pass ``{Dataset.ticks}`` to opt in to ticks).
         timeframe: Rates timeframe as integer or name (e.g. ``M1``).
         flags: Tick copy flags as integer or name (e.g. ``ALL``).
         if_exists: Behavior when a target table already exists.
@@ -1246,7 +1254,7 @@ def collect_history(
     """
     start = _require_datetime(date_from)
     end = _require_datetime(date_to)
-    selected = datasets if datasets is not None else set(Dataset)
+    selected = resolve_history_datasets(datasets)
     tf = _coerce_timeframe(timeframe)
     tick_flags = _coerce_tick_flags(flags)
     mt5_config = config or build_config()

mt5cli/storage.py

@@ -1,49 +0,0 @@
-"""Generic storage helpers for MT5 market and account history."""
-
-from __future__ import annotations
-
-from .history import (
-    RateTarget,
-    build_rate_targets,
-    build_rate_view_name,
-    drop_forming_rate_bar,
-    load_rate_data,
-    load_rate_data_from_connection,
-    load_rate_series_by_granularity,
-    load_rate_series_from_sqlite,
-    resolve_rate_tables,
-    resolve_rate_view_name,
-    resolve_rate_view_names,
-)
-from .sdk import collect_history, update_history, update_history_with_config
-from .utils import (
-    Dataset,
-    IfExists,
-    OutputFormat,
-    detect_format,
-    export_dataframe,
-    export_dataframe_to_sqlite,
-)
-
-__all__ = [
-    "Dataset",
-    "IfExists",
-    "OutputFormat",
-    "RateTarget",
-    "build_rate_targets",
-    "build_rate_view_name",
-    "collect_history",
-    "detect_format",
-    "drop_forming_rate_bar",
-    "export_dataframe",
-    "export_dataframe_to_sqlite",
-    "load_rate_data",
-    "load_rate_data_from_connection",
-    "load_rate_series_by_granularity",
-    "load_rate_series_from_sqlite",
-    "resolve_rate_tables",
-    "resolve_rate_view_name",
-    "resolve_rate_view_names",
-    "update_history",
-    "update_history_with_config",
-]

mt5cli/trading.py

@@ -6,20 +6,79 @@ import logging
 from contextlib import contextmanager
 from math import floor, isfinite
 from numbers import Integral, Real
-from typing import TYPE_CHECKING, Literal, TypedDict, cast
+from typing import TYPE_CHECKING, Literal, Protocol, TypedDict, cast
 
 import pandas as pd
-from pdmt5 import Mt5Config, Mt5RuntimeError, Mt5TradingClient, Mt5TradingError
+from pdmt5 import Mt5Config, Mt5DataClient, Mt5RuntimeError
 
+from .exceptions import Mt5OperationError
 from .history import drop_forming_rate_bar
 from .sdk import build_config
 from .utils import coerce_login as _coerce_login
 
 if TYPE_CHECKING:
     from collections.abc import Iterator, Mapping, Sequence
+    from typing import Any
 
 _logger = logging.getLogger(__name__)
 
+
+class _Mt5ClientProtocol(Protocol):
+    """Minimal protocol for MT5 clients with methods required by mt5cli.
+
+    This protocol describes the interface required by mt5cli trading helpers.
+    It uses positional-only parameters to avoid structural subtyping issues with
+    different client implementations that may use different parameter names.
+    """
+
+    @property
+    def mt5(self) -> Any:  # noqa: ANN401
+        """MT5 module with trading constants (POSITION_TYPE_*, ORDER_TYPE_*, etc.)."""
+        ...
+
+    def account_info_as_dict(self) -> dict[str, Any]:
+        """Return account information as a dictionary."""
+        ...
+
+    def symbol_info(self, symbol: str, /) -> object:
+        """Return symbol information."""
+        ...
+
+    def symbol_info_tick(self, symbol: str, /) -> object:
+        """Return latest symbol tick information."""
+        ...
+
+    def positions_get_as_df(self, symbol: str | None = None) -> pd.DataFrame:
+        """Return open positions as a DataFrame."""
+        ...
+
+    def order_calc_margin(
+        self, /, action: int, symbol: str, volume: float, price: float
+    ) -> Any:  # noqa: ANN401
+        """Calculate required margin for an order."""
+        ...
+
+    def order_send(self, request: dict[str, Any], /) -> Any:  # noqa: ANN401
+        """Send an order request and return the response."""
+        ...
+
+    def symbol_select(self, symbol: str, enable: bool = True) -> bool:
+        """Select/deselect a symbol in Market Watch."""
+        ...
+
+    def last_error(self) -> object:
+        """Return the last error message or info."""
+        ...
+
+    def shutdown(self) -> None:
+        """Shut down the MT5 client."""
+        ...
+
+    def initialize_and_login_mt5(self) -> None:
+        """Initialize and login to MT5."""
+        ...
+
+
 PositionSide = Literal["long", "short"]
 OrderSide = Literal["BUY", "SELL"]
 OrderFillingMode = Literal["IOC", "FOK", "RETURN"]
@@ -188,7 +247,7 @@ def _validate_protective_prices(
     """Validate SL/TP distances against broker stop-level constraints.
 
     Raises:
-        Mt5TradingError: When a protective price is closer than ``min_distance``.
+        Mt5OperationError: When a protective price is closer than ``min_distance``.
     """
     if min_distance <= 0:
         return
@@ -198,37 +257,37 @@ def _validate_protective_prices(
                 f"Stop loss for {symbol!r} violates broker stop level "
                 f"(minimum distance {min_distance})."
             )
-            raise Mt5TradingError(msg)
+            raise Mt5OperationError(msg)
         if take_profit is not None and (take_profit - entry) < min_distance:
             msg = (
                 f"Take profit for {symbol!r} violates broker stop level "
                 f"(minimum distance {min_distance})."
             )
-            raise Mt5TradingError(msg)
+            raise Mt5OperationError(msg)
         return
     if stop_loss is not None and (stop_loss - entry) < min_distance:
         msg = (
             f"Stop loss for {symbol!r} violates broker stop level "
             f"(minimum distance {min_distance})."
         )
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     if take_profit is not None and (entry - take_profit) < min_distance:
         msg = (
             f"Take profit for {symbol!r} violates broker stop level "
             f"(minimum distance {min_distance})."
         )
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
 
 
-def ensure_symbol_selected(client: Mt5TradingClient, symbol: str) -> None:
+def ensure_symbol_selected(client: _Mt5ClientProtocol, symbol: str) -> None:
     """Ensure a symbol is visible in Market Watch before sending orders.
 
     Args:
-        client: Connected ``Mt5TradingClient`` instance.
+        client: Connected MT5 client instance.
         symbol: Symbol to select.
 
     Raises:
-        Mt5TradingError: If the symbol cannot be selected in Market Watch or
+        Mt5OperationError: If the symbol cannot be selected in Market Watch or
             ``symbol_select`` is unavailable on the client.
     """
     snapshot = get_symbol_snapshot(client, symbol)
@@ -237,13 +296,13 @@ def ensure_symbol_selected(client: Mt5TradingClient, symbol: str) -> None:
     select = getattr(client, "symbol_select", None)
     if not callable(select):
         msg = "MT5 client is missing required method: symbol_select"
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     if select(symbol, enable=True):
         return
     last_error = getattr(client, "last_error", None)
     detail = f" ({last_error()})" if callable(last_error) else ""
     msg = f"Failed to select symbol {symbol!r} in Market Watch{detail}."
-    raise Mt5TradingError(msg)
+    raise Mt5OperationError(msg)
 
 
 def _require_unit_ratio(value: float, name: str) -> None:
@@ -370,7 +429,7 @@ def _snapshot_from_value(value: object, fields: tuple[str, ...]) -> dict[str, ob
     return {field: row.get(field) for field in fields}
 
 
-def _call_snapshot_method(client: Mt5TradingClient, *names: str) -> object:
+def _call_snapshot_method(client: _Mt5ClientProtocol, *names: str) -> object:
     for name in names:
         method = getattr(client, name, None)
         if callable(method):
@@ -394,7 +453,7 @@ def _resolve_mt5_constant(
         return cast("int", getattr(mt5, name))
     except AttributeError as exc:
         msg = f"MT5 module is missing required constant: {name}"
-        raise Mt5TradingError(msg) from exc
+        raise Mt5OperationError(msg) from exc
 
 
 def _parse_digit_string(value: str) -> int | None:
@@ -478,7 +537,7 @@ def _order_status_from_retcode(mt5: object, retcode: object) -> ExecutionStatus:
 
 
 def _calculate_min_volume_if_affordable(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
     available_margin: float,
     order_side: OrderSide,
@@ -495,14 +554,14 @@ def _calculate_min_volume_if_affordable(
         or (volume_max > 0 and volume_min > volume_max)
     ):
         msg = f"Invalid volume constraints for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     side = _normalize_order_side(order_side)
     price = extract_tick_price(
         get_tick_snapshot(client, symbol), "ask" if side == "BUY" else "bid"
     )
     if price is None:
         msg = f"Tick price is unavailable for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     order_type = (
         client.mt5.ORDER_TYPE_BUY if side == "BUY" else client.mt5.ORDER_TYPE_SELL
     )
@@ -519,8 +578,12 @@ def create_trading_client(
     path: str | None = None,
     timeout: int | None = None,
     retry_count: int = 0,
-) -> Mt5TradingClient:
+) -> _Mt5ClientProtocol:
-    """Return an initialized and logged-in trading client."""
+    """Return an initialized and logged-in trading client.
+
+    Returns:
+        A client instance supporting the required MT5 trading methods.
+    """
     mt5_config = _resolve_config(
         config=config,
         login=login,
@@ -529,7 +592,7 @@ def create_trading_client(
         path=path,
         timeout=timeout,
     )
-    client = Mt5TradingClient(config=mt5_config, retry_count=retry_count)
+    client = Mt5DataClient(config=mt5_config, retry_count=retry_count)
     try:
         client.initialize_and_login_mt5()
     except Exception:
@@ -539,13 +602,13 @@ def create_trading_client(
 
 
 def detect_position_side(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
 ) -> PositionSide | None:
     """Detect the net open position side for a symbol.
 
     Args:
-        client: Connected ``Mt5TradingClient`` instance.
+        client: Connected MT5 client instance.
         symbol: Symbol to inspect.
 
     Returns:
@@ -569,7 +632,7 @@ def detect_position_side(
 
 
 def get_account_snapshot(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
 ) -> dict[str, float | int | str | None]:
     """Return normalized account state with stable keys."""
     value = _call_snapshot_method(client, "account_info_as_dict", "account_info")
@@ -580,7 +643,7 @@ def get_account_snapshot(
 
 
 def get_symbol_snapshot(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
 ) -> dict[str, float | int | str | bool | None]:
     """Return normalized symbol metadata required for trading decisions."""
@@ -592,7 +655,7 @@ def get_symbol_snapshot(
 
 
 def get_tick_snapshot(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
 ) -> dict[str, float | int | None]:
     """Return normalized latest tick data, including bid, ask, and timestamp."""
@@ -606,7 +669,7 @@ def get_tick_snapshot(
 
 
 def get_positions_frame(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str | None = None,
 ) -> pd.DataFrame:
     """Return open positions as a DataFrame with stable baseline columns."""
@@ -618,7 +681,7 @@ def get_positions_frame(
 
 
 def _order_side_from_position_type(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     position_type: object,
 ) -> OrderSide | None:
     if position_type == client.mt5.POSITION_TYPE_BUY:
@@ -640,7 +703,7 @@ def _ensure_rate_time_column(frame: pd.DataFrame) -> pd.DataFrame:
 
 
 def estimate_order_margin(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
     order_side: OrderSide | str,
     volume: float,
@@ -651,17 +714,17 @@ def estimate_order_margin(
         Positive finite margin required for the order at the current quote.
 
     Raises:
-        Mt5TradingError: If volume, tick data, or margin estimation is invalid.
+        Mt5OperationError: If volume, tick data, or margin estimation is invalid.
     """
     if not _is_positive_finite_number(volume):
         msg = "Volume must be a positive finite number to estimate order margin."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     side = _normalize_order_side(order_side)
     tick = get_tick_snapshot(client, symbol)
     price = extract_tick_price(tick, "ask" if side == "BUY" else "bid")
     if price is None:
         msg = f"Tick price is unavailable for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     order_type = (
         client.mt5.ORDER_TYPE_BUY if side == "BUY" else client.mt5.ORDER_TYPE_SELL
     )
@@ -670,22 +733,22 @@ def estimate_order_margin(
         margin = float(raw_margin)
     except (TypeError, ValueError) as exc:
         msg = f"Margin estimate is invalid for {symbol!r}."
-        raise Mt5TradingError(msg) from exc
+        raise Mt5OperationError(msg) from exc
     if margin <= 0 or not isfinite(margin):
         msg = f"Margin estimate is invalid for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     return margin
 
 
 def calculate_positions_margin(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbols: Sequence[str] | None = None,
 ) -> float:
     """Return the sum of estimated current margin for open positions.
 
     Args:
-        client: Connected ``Mt5TradingClient`` instance.
+        client: Connected MT5 client instance.
         symbols: Optional symbol filter. When omitted, all open positions are
             included.
 
@@ -720,7 +783,7 @@ def calculate_positions_margin(
 
 
 def calculate_positions_margin_by_symbol(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbols: Sequence[str],
     suppress_errors: bool = True,
@@ -732,10 +795,10 @@ def calculate_positions_margin_by_symbol(
     first-seen order.
 
     Args:
-        client: Connected ``Mt5TradingClient`` instance.
+        client: Connected MT5 client instance.
         symbols: Symbols to compute margin for.
         suppress_errors: When ``True``, log and skip symbols that raise
-            ``Mt5TradingError``, ``Mt5RuntimeError``, or ``AttributeError``.
+            ``Mt5OperationError``, ``Mt5RuntimeError``, or ``AttributeError``.
             When ``False``, re-raise the first failure.
 
     Returns:
@@ -744,7 +807,7 @@ def calculate_positions_margin_by_symbol(
         with ``suppress_errors=True``.
 
     Raises:
-        Mt5TradingError: When a symbol raises ``Mt5TradingError`` and
+        Mt5OperationError: When a symbol raises ``Mt5OperationError`` and
             ``suppress_errors=False``.
         Mt5RuntimeError: When a symbol raises ``Mt5RuntimeError`` and
             ``suppress_errors=False``.
@@ -755,7 +818,7 @@ def calculate_positions_margin_by_symbol(
     for symbol in dict.fromkeys(symbols):
         try:
             result[symbol] = calculate_positions_margin(client, symbols=[symbol])
-        except (Mt5TradingError, Mt5RuntimeError, AttributeError) as exc:
+        except (Mt5OperationError, Mt5RuntimeError, AttributeError) as exc:
             if not suppress_errors:
                 raise
             _logger.warning("Skipping margin for %r: %s", symbol, exc)
@@ -763,7 +826,7 @@ def calculate_positions_margin_by_symbol(
 
 
 def calculate_positions_margin_safe(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbols: Sequence[str],
 ) -> float:
@@ -773,7 +836,7 @@ def calculate_positions_margin_safe(
     ``suppress_errors=True``. Failed symbols are silently skipped.
 
     Args:
-        client: Connected ``Mt5TradingClient`` instance.
+        client: Connected MT5 client instance.
         symbols: Symbols to include.
 
     Returns:
@@ -785,23 +848,23 @@ def calculate_positions_margin_safe(
     )
 
 
-def calculate_spread_ratio(client: Mt5TradingClient, symbol: str) -> float:
+def calculate_spread_ratio(client: _Mt5ClientProtocol, symbol: str) -> float:
     """Return ``(ask - bid) / ((ask + bid) / 2)`` for the latest tick.
 
     Raises:
-        Mt5TradingError: If bid or ask is unavailable.
+        Mt5OperationError: If bid or ask is unavailable.
     """
     tick = get_tick_snapshot(client, symbol)
     bid = extract_tick_price(tick, "bid")
     ask = extract_tick_price(tick, "ask")
     if bid is None or ask is None:
         msg = f"Tick bid/ask is unavailable for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     return (ask - bid) / ((ask + bid) / 2.0)
 
 
 def calculate_new_position_margin_ratio(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str,
     new_position_side: OrderSide | None = None,
@@ -810,13 +873,13 @@ def calculate_new_position_margin_ratio(
     """Return total margin/equity ratio after an optional hypothetical position.
 
     Raises:
-        Mt5TradingError: If equity or required tick data is invalid.
+        Mt5OperationError: If equity or required tick data is invalid.
     """
     account = get_account_snapshot(client)
     equity = float(account.get("equity") or 0.0)
     if equity <= 0:
         msg = "Account equity must be positive to calculate margin ratio."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     margin = float(account.get("margin") or 0.0)
     if new_position_side is not None and new_position_volume > 0:
         side = _normalize_order_side(new_position_side)
@@ -825,7 +888,7 @@ def calculate_new_position_margin_ratio(
         )
         if price is None:
             msg = f"Tick price is unavailable for {symbol!r}."
-            raise Mt5TradingError(msg)
+            raise Mt5OperationError(msg)
         order_type = (
             client.mt5.ORDER_TYPE_BUY if side == "BUY" else client.mt5.ORDER_TYPE_SELL
         )
@@ -835,7 +898,7 @@ def calculate_new_position_margin_ratio(
     return margin / equity
 
 
-def _account_equity(client: Mt5TradingClient) -> float:
+def _account_equity(client: _Mt5ClientProtocol) -> float:
     account = get_account_snapshot(client)
     return _required_account_number(account, "equity", allow_zero=False)
 
@@ -849,7 +912,7 @@ def _required_account_number(
     raw_value = account.get(field)
     if isinstance(raw_value, bool) or not isinstance(raw_value, Real):
         msg = f"Account {field} must be a finite number to calculate margin ratio."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     value = float(raw_value)
     if (
         not isfinite(value)
@@ -861,12 +924,12 @@ def _required_account_number(
             if allow_zero
             else f"Account {field} must be a positive finite number."
         )
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     return value
 
 
 def calculate_account_projected_margin_ratio(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str | None = None,
     new_position_side: OrderSide | None = None,
@@ -894,7 +957,7 @@ def calculate_account_projected_margin_ratio(
 
 
 def calculate_projected_margin_ratio(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str,
     new_position_side: OrderSide | None = None,
@@ -933,7 +996,7 @@ def _validate_projection_mode(projection_mode: str) -> ProjectionMode:
 
 
 def calculate_symbol_group_margin_ratio(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbols: Sequence[str],
     new_symbol: str | None = None,
@@ -962,7 +1025,7 @@ def calculate_symbol_group_margin_ratio(
             fails and ``suppress_errors`` is ``False``.
         Mt5RuntimeError: When symbol margin lookup or projected margin lookup
             fails and ``suppress_errors`` is ``False``.
-        Mt5TradingError: When account equity is invalid, or when symbol margin
+        Mt5OperationError: When account equity is invalid, or when symbol margin
             lookup or projected margin lookup fails and ``suppress_errors`` is
             ``False``.
     """
@@ -987,7 +1050,7 @@ def calculate_symbol_group_margin_ratio(
                 new_position_side,
                 new_position_volume,
             )
-        except (Mt5TradingError, Mt5RuntimeError, AttributeError):
+        except (Mt5OperationError, Mt5RuntimeError, AttributeError):
             if not suppress_errors:
                 raise
             _logger.warning("Skipping projected margin for %r.", new_symbol)
@@ -999,7 +1062,7 @@ def calculate_symbol_group_margin_ratio(
 
 
 def calculate_margin_and_volume(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
     unit_margin_ratio: float,
     preserved_margin_ratio: float,
@@ -1013,7 +1076,7 @@ def calculate_margin_and_volume(
     side when the post-reserve margin can afford it.
 
     Args:
-        client: Connected ``Mt5TradingClient`` instance.
+        client: Connected MT5 client instance.
         symbol: Symbol used for minimum-lot margin and volume calculations.
         unit_margin_ratio: Fraction of post-reserve margin to allocate per unit.
         preserved_margin_ratio: Fraction of ``margin_free`` to preserve.
@@ -1066,7 +1129,7 @@ def calculate_margin_and_volume(
 
 
 def calculate_volume_by_margin(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
     available_margin: float,
     order_side: OrderSide,
@@ -1079,7 +1142,7 @@ def calculate_volume_by_margin(
         constraints; ``0.0`` when no affordable step exists.
 
     Raises:
-        Mt5TradingError: If symbol volume constraints or tick data are invalid.
+        Mt5OperationError: If symbol volume constraints or tick data are invalid.
     """
     if available_margin <= 0:
         return 0.0
@@ -1089,14 +1152,14 @@ def calculate_volume_by_margin(
     volume_step = float(symbol_info.get("volume_step") or volume_min or 0.0)
     if volume_min <= 0 or volume_step <= 0:
         msg = f"Invalid volume constraints for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     side = _normalize_order_side(order_side)
     price = extract_tick_price(
         get_tick_snapshot(client, symbol), "ask" if side == "BUY" else "bid"
     )
     if price is None:
         msg = f"Tick price is unavailable for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     order_type = (
         client.mt5.ORDER_TYPE_BUY if side == "BUY" else client.mt5.ORDER_TYPE_SELL
     )
@@ -1138,7 +1201,7 @@ def calculate_volume_by_margin(
 
 
 def determine_order_limits(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     symbol: str,
     side: PositionSide | str,
     stop_loss_limit_ratio: float | None = None,
@@ -1147,7 +1210,7 @@ def determine_order_limits(
     """Derive entry and protective order prices from current market quotes.
 
     Args:
-        client: Connected ``Mt5TradingClient`` instance.
+        client: Connected MT5 client instance.
         symbol: Symbol used for the quote lookup.
         side: Position side as ``"long"``/``"short"`` (``"buy"``/``"sell"``
             aliases are accepted).
@@ -1161,7 +1224,7 @@ def determine_order_limits(
         Omitted protective levels are returned as ``None``.
 
     Raises:
-        Mt5TradingError: If required tick data is invalid or computed SL/TP
+        Mt5OperationError: If required tick data is invalid or computed SL/TP
             prices violate available ``trade_stops_level`` pre-validation.
     """
     stop_loss_ratio = stop_loss_limit_ratio or 0.0
@@ -1174,7 +1237,7 @@ def determine_order_limits(
     entry = extract_tick_price(tick, entry_key)
     if entry is None:
         msg = f"Tick price is unavailable for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     try:
         symbol_info = get_symbol_snapshot(client, symbol)
     except (AttributeError, KeyError, TypeError, ValueError):
@@ -1218,7 +1281,7 @@ def determine_order_limits(
 
 
 def place_market_order(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str,
     volume: float,
@@ -1232,20 +1295,20 @@ def place_market_order(
 ) -> OrderExecutionResult:
     """Place one normalized market order or return a dry-run result.
 
-    ``pdmt5.Mt5TradingClient.order_send()`` raises only when MT5 returns no
+    ``order_send()`` raises only when MT5 returns no response. When MT5 returns
-    response. When MT5 returns a response with a known non-success retcode, this
+    a response with a known non-success retcode, this helper returns
-    helper returns ``status="failed"`` and keeps the normalized response
+    ``status="failed"`` and keeps the normalized response details for callers
-    details for callers to inspect.
+    to inspect.
 
     Returns:
         Normalized execution result containing request and response details.
 
     Raises:
-        Mt5TradingError: If volume or required tick data is invalid.
+        Mt5OperationError: If volume or required tick data is invalid.
     """
     if volume <= 0:
         msg = "volume must be positive."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     side = _normalize_order_side(order_side)
     if not dry_run:
         ensure_symbol_selected(client, symbol)
@@ -1253,7 +1316,7 @@ def place_market_order(
     price = extract_tick_price(tick, "ask" if side == "BUY" else "bid")
     if price is None:
         msg = f"Tick price is unavailable for {symbol!r}."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     request = {
         "action": client.mt5.TRADE_ACTION_DEAL,
         "symbol": symbol,
@@ -1326,7 +1389,7 @@ def _filter_positions(
 
 
 def close_open_positions(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbols: str | list[str] | None = None,
     tickets: list[int] | None = None,
@@ -1358,7 +1421,7 @@ def close_open_positions(
     return results
 
 
-def _symbol_digits(client: Mt5TradingClient, symbol: str) -> int | None:
+def _symbol_digits(client: _Mt5ClientProtocol, symbol: str) -> int | None:
     try:
         raw_digits = get_symbol_snapshot(client, symbol).get("digits")
         if raw_digits is None:
@@ -1379,7 +1442,7 @@ def _current_stop_loss(value: object) -> float | None:
 
 
 def _trailing_stop_loss(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     position_type: object,
     current_sl: float | None,
@@ -1402,7 +1465,7 @@ def _trailing_stop_loss(
 
 
 def calculate_trailing_stop_updates(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str,
     trailing_stop_ratio: float,
@@ -1447,7 +1510,7 @@ def calculate_trailing_stop_updates(
 
 
 def update_trailing_stop_loss_for_open_positions(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str,
     trailing_stop_ratio: float,
@@ -1478,7 +1541,7 @@ def update_trailing_stop_loss_for_open_positions(
 
 
 def update_sltp_for_open_positions(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str | None = None,
     tickets: list[int] | None = None,
@@ -1542,7 +1605,7 @@ def update_sltp_for_open_positions(
 
 
 def fetch_latest_closed_rates_for_trading_client(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str,
     granularity: str,
@@ -1556,7 +1619,7 @@ def fetch_latest_closed_rates_for_trading_client(
     Raises:
         ValueError: If ``count`` is not positive, rate data is empty or
             malformed, or the ``time`` column is missing.
-        Mt5TradingError: If the trading client cannot fetch rate data.
+        Mt5OperationError: If the trading client cannot fetch rate data.
     """
     if count <= 0:
         msg = "count must be positive."
@@ -1564,7 +1627,7 @@ def fetch_latest_closed_rates_for_trading_client(
     fetch_method = getattr(client, "fetch_latest_rates_as_df", None)
     if not callable(fetch_method):
         msg = "MT5 trading client cannot fetch rate data."
-        raise Mt5TradingError(msg)
+        raise Mt5OperationError(msg)
     fetched = fetch_method(symbol, granularity, count + 1)
     if not isinstance(fetched, pd.DataFrame):
         msg = (
@@ -1627,7 +1690,7 @@ def _rate_time_to_utc(series: pd.Series, symbol: str) -> pd.DatetimeIndex:
 
 
 def fetch_latest_closed_rates_indexed(
-    client: Mt5TradingClient,
+    client: _Mt5ClientProtocol,
     *,
     symbol: str,
     granularity: str,
@@ -1683,13 +1746,13 @@ def mt5_trading_session(
     path: str | None = None,
     timeout: int | None = None,
     retry_count: int = 0,
-) -> Iterator[Mt5TradingClient]:
+) -> Iterator[_Mt5ClientProtocol]:
     """Open a trading-capable MT5 session and always shut down safely.
 
     Launches the MetaTrader 5 terminal using ``Mt5Config.path`` when set,
     initializes and logs in via ``initialize_and_login_mt5()``, yields a
-    connected :class:`~pdmt5.Mt5TradingClient`, and calls ``shutdown()`` on
+    connected client supporting required MT5 methods, and calls ``shutdown()``
-    exit even when an error is raised inside the context.
+    on exit even when an error is raised inside the context.
 
     Args:
         config: MT5 connection configuration. Defaults to an empty config that
@@ -1699,11 +1762,10 @@ def mt5_trading_session(
         server: Optional trading server name.
         path: Optional terminal executable path.
         timeout: Optional connection timeout in milliseconds.
-        retry_count: Number of initialization retries passed to
+        retry_count: Number of initialization retries.
-            ``Mt5TradingClient``.
 
     Yields:
-        Connected ``Mt5TradingClient`` bound to the session.
+        Connected client supporting required MT5 trading methods.
     """
     client = create_trading_client(
         config=config,

mt5cli/utils.py

@@ -10,7 +10,8 @@ from pathlib import Path
 from typing import TYPE_CHECKING, Any, TypeGuard
 
 import click
-from pdmt5 import COPY_TICKS_MAP, TIMEFRAME_MAP
+from pdmt5 import COPY_TICKS_MAP as _COPY_TICKS_MAP
+from pdmt5 import TIMEFRAME_MAP as _TIMEFRAME_MAP
 from pdmt5 import parse_copy_ticks as _parse_copy_ticks
 from pdmt5 import parse_timeframe as _parse_timeframe
 
@@ -23,14 +24,11 @@ if TYPE_CHECKING:
 # Constants
 # ---------------------------------------------------------------------------
 
-# Backward-compatible snapshot; prefer ``COPY_TICKS_MAP`` from pdmt5 directly.
-TICK_FLAG_MAP: dict[str, int] = dict(COPY_TICKS_MAP)
-
 TIMEFRAME_NAMES: tuple[str, ...] = tuple(
-    name for name in TIMEFRAME_MAP if not name.startswith("TIMEFRAME_")
+    name for name in _TIMEFRAME_MAP if not name.startswith("TIMEFRAME_")
 )
 _TICK_FLAG_NAMES: tuple[str, ...] = tuple(
-    name for name in COPY_TICKS_MAP if not name.startswith("COPY_TICKS_")
+    name for name in _COPY_TICKS_MAP if not name.startswith("COPY_TICKS_")
 )
 
 _FORMAT_EXTENSIONS: dict[str, str] = {
@@ -314,6 +312,7 @@ def export_dataframe(
         table_name: Table name for SQLite3 output.
 
     Raises:
+        ImportError: If the parquet format is requested but pyarrow is not installed.
         ValueError: If the output format is not supported.
     """
     if output_format == "csv":
@@ -326,6 +325,14 @@ def export_dataframe(
             indent=2,
         )
     elif output_format == "parquet":
+        try:
+            __import__("pyarrow")
+        except ImportError as exc:
+            msg = (
+                "Parquet export requires the optional dependency pyarrow. "
+                'Install it with: pip install "mt5cli[parquet]"'
+            )
+            raise ImportError(msg) from exc
         df.to_parquet(output_path, index=False)
     elif output_format == "sqlite3":
         export_dataframe_to_sqlite(

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "mt5cli"
-version = "0.9.6"
+version = "1.0.2"
 description = "Generic MT5 data and execution infrastructure for Python applications"
 authors = [{name = "dceoy", email = "dceoy@users.noreply.github.com"}]
 maintainers = [{name = "dceoy", email = "dceoy@users.noreply.github.com"}]
@@ -9,9 +9,8 @@ license-files = ["LICENSE"]
 readme = "README.md"
 requires-python = ">= 3.11, < 3.14"
 dependencies = [
-  "pdmt5>=0.3.0",
+  "pdmt5>=1.0.0",
   "click >= 8.1.0",
-  "pyarrow >= 19.0.0",
   "typer >= 0.15.0",
 ]
 classifiers = [
@@ -25,6 +24,9 @@ classifiers = [
   "Topic :: Office/Business :: Financial :: Investment",
 ]
 
+[project.optional-dependencies]
+parquet = ["pyarrow >= 19.0.0"]
+
 [project.scripts]
 mt5cli = "mt5cli.cli:main"
 
@@ -42,6 +44,7 @@ dev = [
   "pytest-mock >= 3.12.0",
   "pytest-cov >= 5.0.0",
   "pandas-stubs >= 2.2.3.250527",
+  "pyarrow >= 19.0.0",
   "mkdocs >= 1.6.1",
   "mkdocs-material >= 9.7.6",
   "mkdocstrings[python] >= 1.0.4",
@@ -175,7 +178,10 @@ omit = [
 [tool.coverage.report]
 show_missing = true
 fail_under = 100
-exclude_lines = ["if TYPE_CHECKING:"]
+exclude_also = [
+  "if TYPE_CHECKING:",
+  "^\\s+\\.\\.\\.$",
+]
 
 [build-system]
 requires = ["hatchling"]

tests/test_cli.py

@@ -740,6 +740,66 @@ class TestCommands:
         assert "must be a JSON object" in normalize_cli_output(result.output)
 
 
+# ---------------------------------------------------------------------------
+# Help text / scope tests
+# ---------------------------------------------------------------------------
+
+
+class TestHelpText:
+    """Tests verifying CLI help text matches the documented scope."""
+
+    def test_top_level_help_mentions_execution(self) -> None:
+        """Top-level help must describe execution utilities, not export only."""
+        result = runner.invoke(app, ["--help"])
+        assert result.exit_code == 0
+        output = normalize_cli_output(result.output)
+        assert "execution" in output.lower()
+
+    def test_top_level_help_has_execution_panel(self) -> None:
+        """Top-level help must show an Execution command group."""
+        result = runner.invoke(app, ["--help"])
+        assert result.exit_code == 0
+        assert "Execution" in result.output
+
+    def test_top_level_help_has_data_export_panel(self) -> None:
+        """Top-level help must show a Data / Export command group."""
+        result = runner.invoke(app, ["--help"])
+        assert result.exit_code == 0
+        assert "Data / Export" in result.output
+
+    def test_order_send_help_mentions_expert_and_raw(self) -> None:
+        """order-send help must communicate it is the expert raw-request path."""
+        result2 = runner.invoke(
+            app,
+            ["-o", "out.csv", "order-send", "--help"],
+        )
+        assert result2.exit_code == 0
+        output = normalize_cli_output(result2.output)
+        assert "raw" in output.lower()
+        assert "expert" in output.lower()
+
+    def test_order_send_help_mentions_live_execution(self) -> None:
+        """order-send help must warn about live execution."""
+        result = runner.invoke(
+            app,
+            ["-o", "out.csv", "order-send", "--help"],
+        )
+        assert result.exit_code == 0
+        output = normalize_cli_output(result.output)
+        assert "live" in output.lower()
+
+    def test_close_positions_help_mentions_dry_run_and_yes(self) -> None:
+        """close-positions help must document both safety gates."""
+        result = runner.invoke(
+            app,
+            ["-o", "out.csv", "close-positions", "--help"],
+        )
+        assert result.exit_code == 0
+        output = normalize_cli_output(result.output)
+        assert "--dry-run" in output
+        assert "--yes" in output
+
+
 # ---------------------------------------------------------------------------
 # close-positions command
 # ---------------------------------------------------------------------------
@@ -1238,12 +1298,12 @@ class TestCollectHistory:
         """Create a mocked Mt5DataClient with history-style DataFrames."""
         return _build_history_client(mocker)
 
-    def test_collect_history_writes_all_tables(
+    def test_collect_history_writes_default_tables(
         self,
         tmp_path: Path,
         history_client: MagicMock,
     ) -> None:
-        """Test that collect-history writes rates, ticks, and history tables."""
+        """Test that collect-history default excludes ticks."""
         output = tmp_path / "history.db"
         result = runner.invoke(
             app,
@@ -1263,8 +1323,42 @@ class TestCollectHistory:
         )
         assert result.exit_code == 0, result.output
         assert history_client.copy_rates_range_as_df.call_count == 2
-        assert history_client.copy_ticks_range_as_df.call_count == 2
+        assert history_client.copy_ticks_range_as_df.call_count == 0
-        history_client.copy_ticks_range_as_df.assert_any_call(
+        with sqlite3.connect(output) as conn:
+            tables = {
+                row[0]
+                for row in conn.execute(
+                    "SELECT name FROM sqlite_master WHERE type='table'",
+                ).fetchall()
+            }
+        assert {"rates", "history_orders", "history_deals"} <= tables
+        assert "ticks" not in tables
+
+    def test_collect_history_explicit_ticks_dataset(
+        self,
+        tmp_path: Path,
+        history_client: MagicMock,
+    ) -> None:
+        """Test that --dataset ticks writes the ticks table with the correct flags."""
+        output = tmp_path / "history.db"
+        result = runner.invoke(
+            app,
+            [
+                "-o",
+                str(output),
+                "collect-history",
+                "--symbol",
+                "EURUSD",
+                "--date-from",
+                "2024-01-01",
+                "--date-to",
+                "2024-02-01",
+                "--dataset",
+                "ticks",
+            ],
+        )
+        assert result.exit_code == 0, result.output
+        history_client.copy_ticks_range_as_df.assert_called_once_with(
             symbol="EURUSD",
             date_from=datetime(2024, 1, 1, tzinfo=UTC),
             date_to=datetime(2024, 2, 1, tzinfo=UTC),
@@ -1277,7 +1371,8 @@ class TestCollectHistory:
                     "SELECT name FROM sqlite_master WHERE type='table'",
                 ).fetchall()
             }
-        assert {"rates", "ticks", "history_orders", "history_deals"} <= tables
+        assert "ticks" in tables
+        assert "rates" not in tables
 
     def test_collect_history_history_fetched_per_symbol(
         self,
@@ -1460,7 +1555,7 @@ class TestCollectHistory:
         tmp_path: Path,
         history_client: MagicMock,
     ) -> None:
-        """Test that --flags defaults to ALL for ticks."""
+        """Test that --flags defaults to ALL when --dataset ticks is explicit."""
         output = tmp_path / "history.db"
         result = runner.invoke(
             app,
@@ -1474,6 +1569,8 @@ class TestCollectHistory:
                 "2024-01-01",
                 "--date-to",
                 "2024-02-01",
+                "--dataset",
+                "ticks",
             ],
         )
         assert result.exit_code == 0, result.output

tests/test_contracts.py

@@ -2,13 +2,16 @@
 
 from __future__ import annotations
 
-import re
+import importlib
 import sqlite3
 from datetime import UTC, datetime
-from pathlib import Path
+from importlib.metadata import requires
-from typing import get_type_hints
+from typing import TYPE_CHECKING, get_type_hints
 from unittest.mock import MagicMock
 
+if TYPE_CHECKING:
+    from pathlib import Path
+
 import pandas as pd
 import pytest
 from pdmt5 import Mt5RuntimeError, Mt5TradingError
@@ -16,15 +19,8 @@ from pytest_mock import MockerFixture  # noqa: TC002
 
 import mt5cli
 from mt5cli import (
-    DEDUP_KEYS,
-    PUBLIC_EXPORT_TIERS,
-    REQUIRED_COLUMNS,
-    SECONDARY_PUBLIC_EXPORTS,
     STABLE_SDK_EXPORTS,
-    TIME_COLUMNS,
     AccountSpec,
-    DataKind,
-    Dataset,
     ExecutionStatus,
     MarginVolume,
     MT5Client,
@@ -43,40 +39,56 @@ from mt5cli import (
     calculate_projected_margin_ratio,
     calculate_symbol_group_margin_ratio,
     calculate_trailing_stop_updates,
-    call_with_normalized_errors,
-    detect_format,
     drop_forming_rate_bar,
     ensure_symbol_selected,
-    ensure_utc,
-    export_dataframe,
-    export_dataframe_to_sqlite,
     extract_tick_price,
     fetch_latest_closed_rates,
     fetch_latest_closed_rates_for_trading_client,
     fetch_latest_closed_rates_indexed,
-    granularity_name,
-    is_recoverable_mt5_error,
-    load_rate_data,
     load_rate_series_from_sqlite,
     mt5_session,
     mt5_trading_session,
-    normalize_dataframe,
-    normalize_mt5_exception,
     normalize_order_volume,
+    place_market_order,
+    resolve_account_spec,
+    resolve_account_specs,
+)
+from mt5cli.converters import (
+    ensure_utc,
+    granularity_name,
     normalize_symbol,
     normalize_symbols,
     parse_date_range,
-    place_market_order,
     recent_window,
-    resolve_account_spec,
+)
-    resolve_account_specs,
+from mt5cli.exceptions import (
+    call_with_normalized_errors,
+    is_recoverable_mt5_error,
+    normalize_mt5_exception,
+)
+from mt5cli.history import (
+    create_rate_compatibility_views,
+    load_rate_data,
     resolve_rate_view_name,
+)
+from mt5cli.retry import retry_with_backoff
+from mt5cli.schemas import (
+    DEDUP_KEYS,
+    REQUIRED_COLUMNS,
+    TIME_COLUMNS,
+    DataKind,
+    ensure_utc_columns,
+    normalize_dataframe,
+    normalize_time_columns,
     schema_columns,
     validate_schema,
 )
-from mt5cli.history import create_rate_compatibility_views
+from mt5cli.utils import (
-from mt5cli.retry import retry_with_backoff
+    Dataset,
-from mt5cli.schemas import ensure_utc_columns, normalize_time_columns
+    detect_format,
+    export_dataframe,
+    export_dataframe_to_sqlite,
+)
 
 
 def _sample_frame(kind: DataKind) -> pd.DataFrame:
@@ -539,6 +551,12 @@ def test_storage_export_round_trip_sqlite(tmp_path: Path) -> None:
     assert count == 1
 
 
+def test_storage_module_does_not_exist() -> None:
+    """mt5cli.storage re-export module has been removed."""
+    with pytest.raises(ModuleNotFoundError):
+        importlib.import_module("mt5cli.storage")
+
+
 class TestStableSdkContract:
     """Tests for the documented stable downstream SDK contract."""
 
@@ -547,51 +565,19 @@ class TestStableSdkContract:
         missing = sorted(STABLE_SDK_EXPORTS - set(mt5cli.__all__))
         assert not missing, f"STABLE_SDK_EXPORTS missing from __all__: {missing}"
 
-    def test_public_export_tiers_are_disjoint_and_complete(self) -> None:
+    def test_stable_exports_cover_root_api(self) -> None:
-        """Documented public tiers do not overlap and classify root exports."""
+        """STABLE_SDK_EXPORTS classifies every package-root symbol."""
-        assert PUBLIC_EXPORT_TIERS == {
+        tier_metadata = {"STABLE_SDK_EXPORTS"}
-            "stable": STABLE_SDK_EXPORTS,
-            "secondary": SECONDARY_PUBLIC_EXPORTS,
-        }
-        assert not (STABLE_SDK_EXPORTS & SECONDARY_PUBLIC_EXPORTS)
-        tiered_exports = STABLE_SDK_EXPORTS | SECONDARY_PUBLIC_EXPORTS
         root_exports = set(mt5cli.__all__)
 
-        missing_from_root = sorted(tiered_exports - root_exports)
+        missing_from_root = sorted(STABLE_SDK_EXPORTS - root_exports)
         assert not missing_from_root, (
-            f"Tiered exports missing from __all__: {missing_from_root}"
+            f"STABLE_SDK_EXPORTS missing from __all__: {missing_from_root}"
         )
 
-        tier_metadata_exports = {
+        unclassified = sorted(root_exports - STABLE_SDK_EXPORTS - tier_metadata)
-            "PUBLIC_EXPORT_TIERS",
+        assert not unclassified, (
-            "SECONDARY_PUBLIC_EXPORTS",
+            f"Root exports not in STABLE_SDK_EXPORTS: {unclassified}"
-            "STABLE_SDK_EXPORTS",
-        }
-        unclassified_root_exports = sorted(
-            root_exports - tiered_exports - tier_metadata_exports,
-        )
-        assert not unclassified_root_exports, (
-            f"Root exports missing from public API tiers: {unclassified_root_exports}"
-        )
-
-    def test_stable_docs_do_not_document_nonstable_exports(self) -> None:
-        """Stable docs do not promote secondary root exports."""
-        docs_path = Path("docs/api/public-contract.md")
-        docs = docs_path.read_text(encoding="utf-8")
-        stable_section = docs.split("## Stable downstream SDK API", maxsplit=1)[
-            1
-        ].split(
-            "## Secondary public exports",
-            maxsplit=1,
-        )[0]
-        documented_symbols = set(
-            re.findall(r"`([A-Za-z_][A-Za-z0-9_]*)`", stable_section)
-        )
-        nonstable_exports = SECONDARY_PUBLIC_EXPORTS
-
-        wrongly_stable = sorted(documented_symbols & nonstable_exports)
-        assert not wrongly_stable, (
-            f"Non-stable exports documented in stable section: {wrongly_stable}"
         )
 
     @pytest.mark.parametrize("name", sorted(STABLE_SDK_EXPORTS))
@@ -599,17 +585,6 @@ class TestStableSdkContract:
         """Stable SDK names resolve through ``from mt5cli import ...``."""
         assert hasattr(mt5cli, name), f"{name!r} missing from mt5cli package root"
 
-    @pytest.mark.parametrize(
-        "name",
-        sorted(SECONDARY_PUBLIC_EXPORTS),
-    )
-    def test_secondary_exports_are_importable(
-        self,
-        name: str,
-    ) -> None:
-        """Non-stable public names remain available from the package root."""
-        assert hasattr(mt5cli, name), f"{name!r} missing from mt5cli package root"
-
     def test_drop_forming_rate_bar_from_package_root(self) -> None:
         """Closed-bar trimming is available from the stable package surface."""
         frame = pd.DataFrame({"time": [1, 2, 3], "close": [1.0, 1.1, 1.2]})
@@ -683,38 +658,6 @@ class TestStableSdkContract:
         assert callable(calculate_projected_margin_ratio)
         assert callable(calculate_symbol_group_margin_ratio)
 
-    def test_resolve_rate_view_name_from_package_root(self, tmp_path: Path) -> None:
-        """Rate view resolution is importable and honors require_existing."""
-        db_path = tmp_path / "rates.db"
-        with sqlite3.connect(db_path) as conn:
-            conn.execute(
-                "CREATE TABLE rates("
-                " symbol TEXT, timeframe INTEGER, time TEXT, close REAL)",
-            )
-            conn.execute(
-                "INSERT INTO rates(symbol, timeframe, time, close) VALUES (?, ?, ?, ?)",
-                ("EURUSD", 1, "2024-01-01T00:00:00+00:00", 1.0),
-            )
-            create_rate_compatibility_views(conn)
-
-        assert resolve_rate_view_name(db_path, "EURUSD", "M1") == "rate_EURUSD__1"
-        missing = tmp_path / "missing.db"
-        with pytest.raises(ValueError, match="SQLite database not found"):
-            resolve_rate_view_name(missing, "EURUSD", "M1", require_existing=True)
-
-    def test_load_rate_data_from_package_root(self, tmp_path: Path) -> None:
-        """SQLite rate loading normalizes timestamps through the stable API."""
-        db_path = tmp_path / "view.db"
-        with sqlite3.connect(db_path) as conn:
-            conn.execute(
-                'CREATE VIEW "rate_EURUSD__1" AS'
-                " SELECT '2024-01-01T00:00:00+00:00' AS time, 1.1 AS close",
-            )
-
-        frame = load_rate_data(db_path, "rate_EURUSD__1")
-        assert frame.index.name == "time"
-        assert abs(float(frame.iloc[0]["close"]) - 1.1) < 1e-9
-
     def test_load_rate_series_from_sqlite_requires_managed_views(
         self,
         tmp_path: Path,
@@ -762,7 +705,7 @@ class TestStableSdkContract:
         """Trading session helper initializes and always shuts down."""
         mock_client = MagicMock()
         mocker.patch(
-            "mt5cli.trading.Mt5TradingClient",
+            "mt5cli.trading.Mt5DataClient",
             return_value=mock_client,
         )
 
@@ -791,7 +734,7 @@ class TestStableSdkContract:
         """Trading session helper shuts down even when the body raises."""
         mock_client = MagicMock()
         mocker.patch(
-            "mt5cli.trading.Mt5TradingClient",
+            "mt5cli.trading.Mt5DataClient",
             return_value=mock_client,
         )
 
@@ -832,3 +775,87 @@ class TestStableSdkContract:
         assert result.index.tz is not None
         assert "time" not in result.columns
         assert "close" in result.columns
+
+    def test_rate_view_helpers_in_history_module(self, tmp_path: Path) -> None:
+        """Rate view helpers are available from mt5cli.history."""
+        db_path = tmp_path / "rates.db"
+        with sqlite3.connect(db_path) as conn:
+            conn.execute(
+                "CREATE TABLE rates("
+                " symbol TEXT, timeframe INTEGER, time TEXT, close REAL)",
+            )
+            conn.execute(
+                "INSERT INTO rates(symbol, timeframe, time, close) VALUES (?, ?, ?, ?)",
+                ("EURUSD", 1, "2024-01-01T00:00:00+00:00", 1.0),
+            )
+            create_rate_compatibility_views(conn)
+
+        assert resolve_rate_view_name(db_path, "EURUSD", "M1") == "rate_EURUSD__1"
+        missing = tmp_path / "missing.db"
+        with pytest.raises(ValueError, match="SQLite database not found"):
+            resolve_rate_view_name(missing, "EURUSD", "M1", require_existing=True)
+
+    def test_load_rate_data_in_history_module(self, tmp_path: Path) -> None:
+        """SQLite rate loading normalizes timestamps through mt5cli.history."""
+        db_path = tmp_path / "view.db"
+        with sqlite3.connect(db_path) as conn:
+            conn.execute(
+                'CREATE VIEW "rate_EURUSD__1" AS'
+                " SELECT '2024-01-01T00:00:00+00:00' AS time, 1.1 AS close",
+            )
+
+        frame = load_rate_data(db_path, "rate_EURUSD__1")
+        assert frame.index.name == "time"
+        assert abs(float(frame.iloc[0]["close"]) - 1.1) < 1e-9
+
+
+@pytest.mark.parametrize(
+    "name",
+    [
+        "Mt5Config",
+        "Mt5RuntimeError",
+        "Mt5TradingClient",
+        "Mt5TradingError",
+        "TICK_FLAG_MAP",
+        "TIMEFRAME_MAP",
+    ],
+)
+def test_pdmt5_pass_through_names_removed_from_public_contract(name: str) -> None:
+    """Removed pdmt5 pass-through names are not part of the public contract."""
+    assert name not in STABLE_SDK_EXPORTS, (
+        f"{name!r} should not be in STABLE_SDK_EXPORTS"
+    )
+    assert name not in mt5cli.__all__, f"{name!r} should not be in mt5cli.__all__"
+
+
+def test_mt5cli_does_not_import_high_level_trading_symbols() -> None:
+    """mt5cli doesn't import Mt5TradingClient or Mt5TradingError at module level."""
+    trading_module = importlib.import_module("mt5cli.trading")
+    module_dict = vars(trading_module)
+    assert "Mt5TradingClient" not in module_dict, (
+        "mt5cli.trading should not import Mt5TradingClient at module level"
+    )
+    assert "Mt5TradingError" not in module_dict, (
+        "mt5cli.trading should not import Mt5TradingError at module level"
+    )
+
+
+# ---------------------------------------------------------------------------
+# Packaging metadata
+# ---------------------------------------------------------------------------
+
+
+def test_parquet_extra_declares_pyarrow() -> None:
+    """Package metadata lists pyarrow under the parquet optional extra."""
+    reqs = requires("mt5cli") or []
+    parquet_reqs = [r for r in reqs if "pyarrow" in r and "parquet" in r]
+    assert parquet_reqs, "pyarrow not found in parquet optional extra"
+
+
+def test_pyarrow_not_in_core_dependencies() -> None:
+    """Pyarrow is not a core dependency; it belongs only in the parquet extra."""
+    reqs = requires("mt5cli") or []
+    core_reqs = [r for r in reqs if "extra ==" not in r]
+    assert not any("pyarrow" in r for r in core_reqs), (
+        "pyarrow should not appear in core dependencies"
+    )

tests/test_history.py

@@ -15,8 +15,11 @@ from pytest_mock import MockerFixture  # noqa: TC002
 if TYPE_CHECKING:
     from pathlib import Path
 
+from pdmt5 import TIMEFRAME_MAP
+
 from mt5cli import history
 from mt5cli.history import (
+    DEFAULT_HISTORY_DATASETS,
     DEFAULT_HISTORY_TIMEFRAMES,
     DedupScope,
     RateTarget,
@@ -58,7 +61,7 @@ from mt5cli.history import (
     write_rates_dataset,
     write_streamed_frame,
 )
-from mt5cli.utils import TIMEFRAME_MAP, Dataset, IfExists
+from mt5cli.utils import Dataset, IfExists
 
 
 class TestResolveRateViewName:
@@ -545,10 +548,23 @@ class TestResolveHistorySettings:
     """Tests for history dataset and timeframe resolution."""
 
     def test_resolve_history_datasets_defaults_and_empty(self) -> None:
-        """Test dataset resolution distinguishes None from empty selection."""
+        """Test dataset resolution excludes ticks by default."""
-        assert resolve_history_datasets(None) == set(Dataset)
+        resolved = resolve_history_datasets(None)
+        assert resolved == set(DEFAULT_HISTORY_DATASETS)
+        assert Dataset.ticks not in resolved
+        assert {
+            Dataset.rates,
+            Dataset.history_orders,
+            Dataset.history_deals,
+        } == resolved
         assert resolve_history_datasets(set()) == set()
 
+    def test_resolve_history_datasets_explicit_ticks(self) -> None:
+        """Test that explicit ticks selection is honored."""
+        assert resolve_history_datasets({Dataset.ticks}) == {Dataset.ticks}
+        all_ds = resolve_history_datasets(set(Dataset))
+        assert Dataset.ticks in all_ds
+
     def test_resolve_history_timeframes_defaults(self) -> None:
         """Test default timeframes include all fixed MT5 values."""
         resolved = resolve_history_timeframes(None)

tests/test_sdk.py

@@ -618,12 +618,12 @@ class TestCollectHistory:
         """Create a mocked Mt5DataClient with history-style DataFrames."""
         return _build_history_client(mocker)
 
-    def test_collect_history_writes_all_tables(
+    def test_collect_history_writes_default_tables(
         self,
         tmp_path: Path,
         history_client: MagicMock,
     ) -> None:
-        """Test that collect_history writes rates, ticks, and history tables."""
+        """Test that collect_history default excludes ticks."""
         output = tmp_path / "history.db"
         collect_history(
             output,
@@ -632,7 +632,7 @@ class TestCollectHistory:
             "2024-02-01",
         )
         assert history_client.copy_rates_range_as_df.call_count == 2
-        assert history_client.copy_ticks_range_as_df.call_count == 2
+        assert history_client.copy_ticks_range_as_df.call_count == 0
         with sqlite3.connect(output) as conn:
             tables = {
                 row[0]
@@ -640,7 +640,34 @@ class TestCollectHistory:
                     "SELECT name FROM sqlite_master WHERE type='table'",
                 ).fetchall()
             }
-        assert {"rates", "ticks", "history_orders", "history_deals"} <= tables
+        assert {"rates", "history_orders", "history_deals"} <= tables
+        assert "ticks" not in tables
+
+    def test_collect_history_explicit_ticks_dataset(
+        self,
+        tmp_path: Path,
+        history_client: MagicMock,
+    ) -> None:
+        """Test that explicit datasets={Dataset.ticks} writes the ticks table."""
+        output = tmp_path / "history.db"
+        collect_history(
+            output,
+            ["EURUSD", "GBPUSD"],
+            "2024-01-01",
+            "2024-02-01",
+            datasets={Dataset.ticks},
+        )
+        assert history_client.copy_ticks_range_as_df.call_count == 2
+        assert history_client.copy_rates_range_as_df.call_count == 0
+        with sqlite3.connect(output) as conn:
+            tables = {
+                row[0]
+                for row in conn.execute(
+                    "SELECT name FROM sqlite_master WHERE type='table'",
+                ).fetchall()
+            }
+        assert "ticks" in tables
+        assert "rates" not in tables
 
     def test_collect_history_with_views(
         self,
@@ -1066,6 +1093,40 @@ class TestUpdateHistory:
         after = datetime.now(UTC)
         assert before <= captured["end"] <= after
 
+    def test_update_history_default_datasets_exclude_ticks(
+        self,
+        connected_client: MagicMock,
+        mocker: MockerFixture,
+        tmp_path: Path,
+    ) -> None:
+        """Test update_history with datasets=None does not collect ticks."""
+        datasets_written: list[set[Dataset]] = []
+
+        def capture(
+            *args: object,
+            **_kwargs: object,
+        ) -> tuple[set[Dataset], dict[Dataset, set[str]]]:
+            datasets_written.append(args[3])  # type: ignore[arg-type]
+            return set(), {}
+
+        mocker.patch("mt5cli.sdk.write_incremental_datasets", side_effect=capture)
+        update_history(
+            client=connected_client,
+            output=tmp_path / "default-datasets.db",
+            symbols=["EURUSD"],
+            datasets=None,
+            timeframes=["M1"],
+            lookback_hours=1,
+            date_to=datetime(2024, 1, 1, tzinfo=UTC),
+        )
+        assert len(datasets_written) == 1
+        assert Dataset.ticks not in datasets_written[0]
+        assert {
+            Dataset.rates,
+            Dataset.history_orders,
+            Dataset.history_deals,
+        } == datasets_written[0]
+
 
 class TestRecentTicks:
     """Tests for recent_ticks helper."""

tests/test_trading.py

@@ -14,6 +14,7 @@ from numpy import int64 as np_int64
 from pdmt5 import Mt5RuntimeError, Mt5TradingClient, Mt5TradingError
 from pytest_mock import MockerFixture  # noqa: TC002
 
+from mt5cli.exceptions import Mt5OperationError
 from mt5cli.sdk import build_config
 from mt5cli.trading import (
     MarginVolume,
@@ -434,7 +435,7 @@ class TestDetermineOrderLimits:
         client = MagicMock()
         client.symbol_info_tick_as_dict.return_value = {"ask": None, "bid": 1.1}
 
-        with pytest.raises(Mt5TradingError, match="Tick price is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick price is unavailable"):
             determine_order_limits(client, "EURUSD", "long")
 
     def test_accepts_numeric_string_entry(self) -> None:
@@ -483,7 +484,7 @@ class TestDetermineOrderLimits:
         client = MagicMock()
         client.symbol_info_tick_as_dict.return_value = tick
 
-        with pytest.raises(Mt5TradingError, match="Tick price is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick price is unavailable"):
             determine_order_limits(client, "EURUSD", side)
 
     @pytest.mark.parametrize(
@@ -512,7 +513,7 @@ class TestDetermineOrderLimits:
             "point": 0.0001,
         }
 
-        with pytest.raises(Mt5TradingError, match=match):
+        with pytest.raises(Mt5OperationError, match=match):
             determine_order_limits(client, "EURUSD", side, **{kwarg: 0.0001})
 
     def test_accepts_stop_loss_exactly_at_minimum_stop_distance(self) -> None:
@@ -619,7 +620,7 @@ class TestDetermineOrderLimits:
         client.symbol_select.return_value = False
         client.last_error.return_value = (1, "not found")
 
-        with pytest.raises(Mt5TradingError, match="Failed to select symbol 'EURUSD'"):
+        with pytest.raises(Mt5OperationError, match="Failed to select symbol 'EURUSD'"):
             ensure_symbol_selected(client, "EURUSD")
 
     def test_raises_when_symbol_select_is_unavailable(self) -> None:
@@ -629,7 +630,7 @@ class TestDetermineOrderLimits:
         del client.symbol_select
 
         with pytest.raises(
-            Mt5TradingError,
+            Mt5OperationError,
             match="missing required method: symbol_select",
         ):
             ensure_symbol_selected(client, "EURUSD")
@@ -645,7 +646,7 @@ class TestMt5TradingSession:
         """Test mt5_trading_session connects, yields a client, and shuts down."""
         mock_client = MagicMock()
         trading_client = mocker.patch(
-            "mt5cli.trading.Mt5TradingClient",
+            "mt5cli.trading.Mt5DataClient",
             return_value=mock_client,
         )
 
@@ -668,10 +669,10 @@ class TestCreateTradingClient:
     """Tests for create_trading_client."""
 
     def test_initializes_with_keyword_config(self, mocker: MockerFixture) -> None:
-        """Test keyword configuration is forwarded to Mt5TradingClient."""
+        """Test keyword configuration is forwarded to Mt5DataClient."""
         mock_client = MagicMock()
         trading_client = mocker.patch(
-            "mt5cli.trading.Mt5TradingClient",
+            "mt5cli.trading.Mt5DataClient",
             return_value=mock_client,
         )
 
@@ -695,7 +696,7 @@ class TestCreateTradingClient:
     def test_empty_login_string_is_unset(self, mocker: MockerFixture) -> None:
         """Test empty login strings are treated as None."""
         trading_client = mocker.patch(
-            "mt5cli.trading.Mt5TradingClient",
+            "mt5cli.trading.Mt5DataClient",
             return_value=MagicMock(),
         )
 
@@ -708,7 +709,7 @@ class TestCreateTradingClient:
         """Test failed initialization shuts the client down."""
         mock_client = MagicMock()
         mock_client.initialize_and_login_mt5.side_effect = Mt5RuntimeError("boom")
-        mocker.patch("mt5cli.trading.Mt5TradingClient", return_value=mock_client)
+        mocker.patch("mt5cli.trading.Mt5DataClient", return_value=mock_client)
 
         with pytest.raises(Mt5RuntimeError, match="boom"):
             create_trading_client()
@@ -791,7 +792,7 @@ class TestSnapshotsAndState:
         client = MagicMock()
         client.symbol_info_tick_as_dict.return_value = {"bid": None, "ask": 1.0}
 
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             calculate_spread_ratio(client, "EURUSD")
 
     def test_calculate_spread_ratio_rejects_non_positive_tick(self) -> None:
@@ -799,7 +800,7 @@ class TestSnapshotsAndState:
         client = MagicMock()
         client.symbol_info_tick_as_dict.return_value = {"bid": 0.0, "ask": 1.0}
 
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             calculate_spread_ratio(client, "EURUSD")
 
     def test_calculate_spread_ratio_accepts_numeric_string_tick(self) -> None:
@@ -843,7 +844,7 @@ class TestSnapshotsAndState:
         client = MagicMock()
         client.symbol_info_tick_as_dict.return_value = tick
 
-        with pytest.raises(Mt5TradingError, match="Tick bid/ask is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick bid/ask is unavailable"):
             calculate_spread_ratio(client, "EURUSD")
 
 
@@ -1033,7 +1034,7 @@ class TestEstimateOrderMargin:
         """Test non-positive volume raises Mt5TradingError."""
         client = _mock_trade_client()
 
-        with pytest.raises(Mt5TradingError, match="positive finite number"):
+        with pytest.raises(Mt5OperationError, match="positive finite number"):
             estimate_order_margin(client, "EURUSD", "BUY", 0.0)
 
     @pytest.mark.parametrize("volume", [float("nan"), float("inf")], ids=["nan", "inf"])
@@ -1041,7 +1042,7 @@ class TestEstimateOrderMargin:
         """Test NaN or infinite volume raises Mt5TradingError without broker calls."""
         client = _mock_trade_client()
 
-        with pytest.raises(Mt5TradingError, match="positive finite number"):
+        with pytest.raises(Mt5OperationError, match="positive finite number"):
             estimate_order_margin(client, "EURUSD", "BUY", volume)
 
         client.symbol_info_tick_as_dict.assert_not_called()
@@ -1052,7 +1053,7 @@ class TestEstimateOrderMargin:
         client = _mock_trade_client()
         client.symbol_info_tick_as_dict.return_value = {"ask": None, "bid": 1.1000}
 
-        with pytest.raises(Mt5TradingError, match="Tick price is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick price is unavailable"):
             estimate_order_margin(client, "EURUSD", "BUY", 0.1)
 
     def test_rejects_non_positive_tick_price(self) -> None:
@@ -1060,7 +1061,7 @@ class TestEstimateOrderMargin:
         client = _mock_trade_client()
         client.symbol_info_tick_as_dict.return_value = {"ask": 0.0, "bid": 1.1000}
 
-        with pytest.raises(Mt5TradingError, match="Tick price is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick price is unavailable"):
             estimate_order_margin(client, "EURUSD", "BUY", 0.1)
 
     def test_rejects_non_finite_tick_price(self) -> None:
@@ -1071,7 +1072,7 @@ class TestEstimateOrderMargin:
             "bid": 1.1000,
         }
 
-        with pytest.raises(Mt5TradingError, match="Tick price is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick price is unavailable"):
             estimate_order_margin(client, "EURUSD", "BUY", 0.1)
 
     @pytest.mark.parametrize(
@@ -1085,7 +1086,7 @@ class TestEstimateOrderMargin:
         client.symbol_info_tick_as_dict.return_value = {"ask": 1.1010, "bid": 1.1000}
         client.order_calc_margin.return_value = margin_value
 
-        with pytest.raises(Mt5TradingError, match="Margin estimate is invalid"):
+        with pytest.raises(Mt5OperationError, match="Margin estimate is invalid"):
             estimate_order_margin(client, "EURUSD", "BUY", 0.1)
 
 
@@ -1184,7 +1185,7 @@ class TestCalculatePositionsMargin:
         )
         client.symbol_info_tick_as_dict.return_value = {"ask": None, "bid": 1.1000}
 
-        with pytest.raises(Mt5TradingError, match="Tick price is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick price is unavailable"):
             calculate_positions_margin(client)
 
     def test_skips_rows_with_invalid_symbol_volume_or_type(self) -> None:
@@ -1376,7 +1377,7 @@ class TestVolumeAndExecution:
             "volume_step": 0.1,
         }
 
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             calculate_volume_by_margin(client, "EURUSD", 100.0, "BUY")
 
     def test_calculate_volume_by_margin_rejects_bad_tick(self) -> None:
@@ -1389,7 +1390,7 @@ class TestVolumeAndExecution:
         }
         client.symbol_info_tick_as_dict.return_value = {"ask": 1.0, "bid": None}
 
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             calculate_volume_by_margin(client, "EURUSD", 100.0, "SELL")
 
     def test_calculate_volume_by_margin_steps_down_when_margin_exceeds_budget(
@@ -1604,7 +1605,7 @@ class TestVolumeAndExecution:
             "volume_step": 0.1,
         }
 
-        with pytest.raises(Mt5TradingError, match="Invalid volume constraints"):
+        with pytest.raises(Mt5OperationError, match="Invalid volume constraints"):
             calculate_margin_and_volume(
                 client,
                 "EURUSD",
@@ -1623,7 +1624,7 @@ class TestVolumeAndExecution:
         }
         client.symbol_info_tick_as_dict.return_value = {"ask": None, "bid": 99.0}
 
-        with pytest.raises(Mt5TradingError, match="Tick price is unavailable"):
+        with pytest.raises(Mt5OperationError, match="Tick price is unavailable"):
             calculate_margin_and_volume(
                 client,
                 "EURUSD",
@@ -1722,7 +1723,7 @@ class TestVolumeAndExecution:
         client = _mock_trade_client()
         client.account_info_as_dict.return_value = {"equity": 0.0, "margin": 50.0}
 
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             calculate_new_position_margin_ratio(client, symbol="EURUSD")
 
     def test_new_position_margin_ratio_rejects_bad_tick(self) -> None:
@@ -1731,7 +1732,7 @@ class TestVolumeAndExecution:
         client.account_info_as_dict.return_value = {"equity": 1000.0, "margin": 50.0}
         client.symbol_info_tick_as_dict.return_value = {"ask": None, "bid": 1.0}
 
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             calculate_new_position_margin_ratio(
                 client,
                 symbol="EURUSD",
@@ -1905,7 +1906,7 @@ class TestVolumeAndExecution:
         client = _mock_trade_client()
         client.account_info_as_dict.return_value = account
 
-        with pytest.raises(Mt5TradingError, match=match):
+        with pytest.raises(Mt5OperationError, match=match):
             calculate_account_projected_margin_ratio(client)
 
     def test_account_projected_margin_ratio_propagates_candidate_margin_error(
@@ -1920,10 +1921,10 @@ class TestVolumeAndExecution:
         }
         mocker.patch(
             "mt5cli.trading.estimate_order_margin",
-            side_effect=Mt5TradingError("bad tick"),
+            side_effect=Mt5OperationError("bad tick"),
         )
 
-        with pytest.raises(Mt5TradingError, match="bad tick"):
+        with pytest.raises(Mt5OperationError, match="bad tick"):
             calculate_account_projected_margin_ratio(
                 client,
                 symbol="EURUSD",
@@ -1999,7 +2000,7 @@ class TestVolumeAndExecution:
         client = _mock_trade_client()
         client.account_info_as_dict.return_value = {"equity": 0.0}
 
-        with pytest.raises(Mt5TradingError, match="Account equity"):
+        with pytest.raises(Mt5OperationError, match="Account equity"):
             calculate_symbol_group_margin_ratio(client, symbols=["EURUSD"])
 
     def test_projected_margin_ratio_rejects_nonnumeric_equity(self) -> None:
@@ -2007,7 +2008,7 @@ class TestVolumeAndExecution:
         client = _mock_trade_client()
         client.account_info_as_dict.return_value = {"equity": "invalid"}
 
-        with pytest.raises(Mt5TradingError, match="Account equity"):
+        with pytest.raises(Mt5OperationError, match="Account equity"):
             calculate_projected_margin_ratio(client, symbol="EURUSD")
 
     def test_symbol_group_margin_ratio_suppresses_projected_failure(
@@ -2024,7 +2025,7 @@ class TestVolumeAndExecution:
         )
         mocker.patch(
             "mt5cli.trading.estimate_order_margin",
-            side_effect=Mt5TradingError("bad tick"),
+            side_effect=Mt5OperationError("bad tick"),
         )
 
         with caplog.at_level(logging.WARNING, logger="mt5cli.trading"):
@@ -2053,10 +2054,10 @@ class TestVolumeAndExecution:
         )
         mocker.patch(
             "mt5cli.trading.estimate_order_margin",
-            side_effect=Mt5TradingError("bad tick"),
+            side_effect=Mt5OperationError("bad tick"),
         )
 
-        with pytest.raises(Mt5TradingError, match="bad tick"):
+        with pytest.raises(Mt5OperationError, match="bad tick"):
             calculate_symbol_group_margin_ratio(
                 client,
                 symbols=["EURUSD"],
@@ -2177,7 +2178,7 @@ class TestVolumeAndExecution:
         )
         mocker.patch(
             "mt5cli.trading.estimate_order_margin",
-            side_effect=Mt5TradingError("bad tick"),
+            side_effect=Mt5OperationError("bad tick"),
         )
 
         with caplog.at_level(logging.WARNING, logger="mt5cli.trading"):
@@ -2208,10 +2209,10 @@ class TestVolumeAndExecution:
         )
         mocker.patch(
             "mt5cli.trading.estimate_order_margin",
-            side_effect=Mt5TradingError("bad tick"),
+            side_effect=Mt5OperationError("bad tick"),
         )
 
-        with pytest.raises(Mt5TradingError, match="bad tick"):
+        with pytest.raises(Mt5OperationError, match="bad tick"):
             calculate_symbol_group_margin_ratio(
                 client,
                 symbols=["EURUSD"],
@@ -2335,7 +2336,7 @@ class TestVolumeAndExecution:
         del client.mt5.ORDER_FILLING_IOC
         client.symbol_info_tick_as_dict.return_value = {"ask": 1.2, "bid": 1.1}
 
-        with pytest.raises(Mt5TradingError, match="ORDER_FILLING_IOC"):
+        with pytest.raises(Mt5OperationError, match="ORDER_FILLING_IOC"):
             place_market_order(
                 client,
                 symbol="EURUSD",
@@ -2346,7 +2347,7 @@ class TestVolumeAndExecution:
 
     def test_place_market_order_rejects_invalid_volume(self) -> None:
         """Test non-positive volume raises a trading error."""
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             place_market_order(
                 _mock_trade_client(),
                 symbol="EURUSD",
@@ -2359,7 +2360,7 @@ class TestVolumeAndExecution:
         client = _mock_trade_client()
         client.symbol_info_tick_as_dict.return_value = {"ask": None, "bid": 1.1}
 
-        with pytest.raises(Mt5TradingError):
+        with pytest.raises(Mt5OperationError):
             place_market_order(
                 client,
                 symbol="EURUSD",
@@ -2913,7 +2914,7 @@ class TestVolumeAndExecution:
         """Test shutdown is called when initialization fails."""
         mock_client = MagicMock()
         mock_client.initialize_and_login_mt5.side_effect = Mt5RuntimeError("boom")
-        mocker.patch("mt5cli.trading.Mt5TradingClient", return_value=mock_client)
+        mocker.patch("mt5cli.trading.Mt5DataClient", return_value=mock_client)
 
         with pytest.raises(Mt5RuntimeError, match="boom"), mt5_trading_session():
             pass
@@ -3070,7 +3071,7 @@ class TestVolumeAndExecution:
     def test_shuts_down_when_body_raises(self, mocker: MockerFixture) -> None:
         """Test shutdown is called when the context body raises."""
         mock_client = MagicMock()
-        mocker.patch("mt5cli.trading.Mt5TradingClient", return_value=mock_client)
+        mocker.patch("mt5cli.trading.Mt5DataClient", return_value=mock_client)
 
         body_error = "body error"
         with pytest.raises(RuntimeError, match=body_error), mt5_trading_session():
@@ -3201,7 +3202,7 @@ class TestFetchLatestClosedRatesForTradingClient:
         """Test missing rate-fetch methods raise Mt5TradingError."""
         client = MagicMock(spec=[])
 
-        with pytest.raises(Mt5TradingError, match="cannot fetch rate data"):
+        with pytest.raises(Mt5OperationError, match="cannot fetch rate data"):
             fetch_latest_closed_rates_for_trading_client(
                 client,
                 symbol="EURUSD",

tests/test_utils.py

@@ -4,21 +4,22 @@ from __future__ import annotations
 
 import json
 import sqlite3
+import sys
 from datetime import UTC, datetime
 from typing import TYPE_CHECKING
 
 import pandas as pd
 import pytest
 
+import mt5cli.utils
+
 if TYPE_CHECKING:
     from pathlib import Path
 
 from mt5cli.utils import (
     DATETIME_TYPE,
     REQUEST_TYPE,
-    TICK_FLAG_MAP,
     TICK_FLAGS_TYPE,
-    TIMEFRAME_MAP,
     TIMEFRAME_TYPE,
     Dataset,
     IfExists,
@@ -111,6 +112,17 @@ class TestExportDataframe:
         result = pd.read_parquet(output)
         pd.testing.assert_frame_equal(result, sample_df)
 
+    def test_export_parquet_without_pyarrow(
+        self,
+        tmp_path: Path,
+        sample_df: pd.DataFrame,
+        monkeypatch: pytest.MonkeyPatch,
+    ) -> None:
+        """Test that a clear error is raised when pyarrow is not installed."""
+        monkeypatch.setitem(sys.modules, "pyarrow", None)
+        with pytest.raises(ImportError, match="mt5cli\\[parquet\\]"):
+            export_dataframe(sample_df, tmp_path / "out.parquet", "parquet")
+
     def test_export_sqlite3(self, tmp_path: Path, sample_df: pd.DataFrame) -> None:
         """Test SQLite3 export."""
         output = tmp_path / "out.db"
@@ -361,17 +373,13 @@ class TestParseRequest:
 class TestConstants:
     """Tests for module constants."""
 
-    def test_timeframe_map_has_expected_keys(self) -> None:
+    def test_timeframe_map_is_private_in_utils(self) -> None:
-        """Test that TIMEFRAME_MAP contains standard timeframes."""
+        """TIMEFRAME_MAP is a private implementation detail; not a public attribute."""
-        for key in ("M1", "M5", "M15", "M30", "H1", "H4", "D1", "W1", "MN1"):
+        assert not hasattr(mt5cli.utils, "TIMEFRAME_MAP")
-            assert key in TIMEFRAME_MAP
 
-    def test_tick_flag_map_has_expected_keys(self) -> None:
+    def test_tick_flag_map_absent_from_utils(self) -> None:
-        """Test that TICK_FLAG_MAP contains standard flags with MT5 values."""
+        """TICK_FLAG_MAP is not exposed by mt5cli.utils."""
-        assert {"ALL", "INFO", "TRADE"} <= set(TICK_FLAG_MAP)
+        assert not hasattr(mt5cli.utils, "TICK_FLAG_MAP")
-        assert TICK_FLAG_MAP["ALL"] == -1
-        assert TICK_FLAG_MAP["INFO"] == 1
-        assert TICK_FLAG_MAP["TRADE"] == 2
 
     @pytest.mark.parametrize(
         ("dataset", "expected"),

uv.lock

@@ -358,7 +358,7 @@ name = "metatrader5"
 version = "5.0.5640"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
-    { name = "numpy", marker = "sys_platform == 'win32'" },
+    { name = "numpy" },
 ]
 wheels = [
     { url = "https://files.pythonhosted.org/packages/ef/a0/3b764c6743ef601ff12f7d8d62ca5768eb25e90d3758ac7e1d08e667af85/metatrader5-5.0.5640-cp311-cp311-win_amd64.whl", hash = "sha256:4057255f2d63138a3ea1a5d492715038a71d3177cad793fca97a5c58771b4eb1", size = 48091, upload-time = "2026-02-20T23:31:12.289Z" },
@@ -487,21 +487,26 @@ wheels = [
 
 [[package]]
 name = "mt5cli"
-version = "0.9.6"
+version = "1.0.2"
 source = { editable = "." }
 dependencies = [
     { name = "click" },
     { name = "pdmt5" },
-    { name = "pyarrow" },
     { name = "typer" },
 ]
 
+[package.optional-dependencies]
+parquet = [
+    { name = "pyarrow" },
+]
+
 [package.dev-dependencies]
 dev = [
     { name = "mkdocs" },
     { name = "mkdocs-material" },
     { name = "mkdocstrings", extra = ["python"] },
     { name = "pandas-stubs" },
+    { name = "pyarrow" },
     { name = "pymdown-extensions" },
     { name = "pyright" },
     { name = "pytest" },
@@ -513,10 +518,11 @@ dev = [
 [package.metadata]
 requires-dist = [
     { name = "click", specifier = ">=8.1.0" },
-    { name = "pdmt5", specifier = ">=0.3.0" },
+    { name = "pdmt5", specifier = ">=1.0.0" },
-    { name = "pyarrow", specifier = ">=19.0.0" },
+    { name = "pyarrow", marker = "extra == 'parquet'", specifier = ">=19.0.0" },
     { name = "typer", specifier = ">=0.15.0" },
 ]
+provides-extras = ["parquet"]
 
 [package.metadata.requires-dev]
 dev = [
@@ -524,6 +530,7 @@ dev = [
     { name = "mkdocs-material", specifier = ">=9.7.6" },
     { name = "mkdocstrings", extras = ["python"], specifier = ">=1.0.4" },
     { name = "pandas-stubs", specifier = ">=2.2.3.250527" },
+    { name = "pyarrow", specifier = ">=19.0.0" },
     { name = "pymdown-extensions", specifier = ">=10.21.2" },
     { name = "pyright", specifier = ">=1.1.407" },
     { name = "pytest", specifier = ">=9.0.3" },
@@ -684,16 +691,16 @@ wheels = [
 
 [[package]]
 name = "pdmt5"
-version = "0.3.0"
+version = "1.0.0"
 source = { registry = "https://pypi.org/simple" }
 dependencies = [
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 [[package]]