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FXDavidandClaude Opus 4.8
ef1b66756b
MT5 can't attach an indicator to a chart via API, so a generic host EA (MBT_IndicatorHost) loads any indicator with iCustom inside the Strategy Tester; the indicator's OnCalculate runs over the date range and its SignalLogger.mqh (now tester-aware: FILE_COMMON under MQL_TESTER) writes the signals to the shared Common/Files folder, which the new run_indicator tool reads back. Removes the manual "attach to a chart" step from the flow. - core/indicator_runner.py: drives the headless run (stale-guard, .set in Profiles/Tester, signal span + warm-up note, instance-clash detection) - mcp_server.py: wires the run_indicator tool - mql5/SignalLogger.mqh: tester-gated FILE_COMMON (chart behaviour unchanged) - mql5/MBT_IndicatorHost.mq5: the generic host EA (places no trades) - install.py: also copies the host EA into MQL5/Experts - README: no-chart flow documented; chart attach now optional Validated under Wine: 348 signals on XAUUSDzero H1, stale-guard + error paths confirmed; host EA + SignalLogger compile 0/0. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>