Give operators/agents visibility into when the CLI neutralizes suspicious token
metadata in an API response.
- sanitizeForOutputWithCount returns the cleaned value plus the number of altered
strings; sanitizeForOutput kept as a thin wrapper
- printResult prints "[gmgn-cli] Notice: neutralized N suspicious metadata value(s)"
to stderr when anything was filtered (extra detail under GMGN_DEBUG); sanitized
JSON still goes to stdout so piping is unaffected
- document the notice in the gmgn-token SKILL untrusted-data warning
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Address HackenProof report GMGNWM-143, where attacker-controlled token metadata
could hijack an AI agent driving gmgn-cli into executing an unauthorized trade.
Move guardrails from overridable SKILL.md text into code.
- Add src/sanitize.ts: neutralize prompt-injection framing and hidden/control
characters in API output (via printResult) and validate create-token metadata
- Add src/confirm.ts: code-enforced human confirmation for financial writes
(swap, multi-swap, order strategy create, cooking create) — reads a typed
"yes" from /dev/tty; automation requires GMGN_ALLOW_AUTOMATED_TRADES=1 + --yes
- Harden config.ts: tighten ~/.config/gmgn/.env to 0600 and warn if world-readable
- Update SKILL.md files, Readme.md and Readme.zh.md to document the gate,
the --yes flag, and untrusted-metadata handling
Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
