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@github-actions github-actions released this 29 Jun 05:53
v0.16.6
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eternal-roman
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Learn about vigilant mode.
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Learn about vigilant mode.

[0.16.6] - 2026-06-29

MCP error response contract hardening + disclaimers (patch).

  • Investigated and resolved real inconsistencies in MCP error signaling: isError usage was non-uniform across schema violations (SDK "MCP error -32602"), logical fail-closed (e.g. unbalanced via ok({ok:false, violations})), and runtime/precond (via fail()).
  • Standardized response contract: all controlled responses include top-level ok: boolean; logical fail-closed use structured {ok:false, ...} (isError typically unset); errors use isError + {ok:false, error}.
  • Added robust parsing in test call() and smoke callJson + expectError.
  • Expanded smoke and added dedicated contract tests covering schema, logical, and error categories.
  • Added minimal disclaimers (tests = "due diligence", MIT supported) in root/mcp READMEs, SCOPE, CITATION, SKILLs, SECURITY, AGENTS, python ref.
  • Deepened adversarial MCP loop coverage.
  • Response contract now documented in mcp/README.md.
  • All gates: 27 MCP tests, smoke (with error shapes), check:versions, verify:full green. No impact to kernel determinism or first-class usage.

Versions aligned across package.json, package-lock.json (both), plugin.json, .claude-plugin/plugin.json, CHANGELOG.md, pyproject.toml, ledger/init.py (0.16.6-ref).

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