[AAASM-121] ✨ (mcp): Implement ClientSession universal governance interception#14

Merged

Chisanan232 merged 13 commits into

v0.0.0/AAASM-121/mcp_clientsession_adapter

Apr 30, 2026

Commits on Apr 30, 2026

✨ (exceptions): Add MCPToolBlockedError for MCP governance blocking
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♻️ (exports): Expose MCPToolBlockedError in package public API
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✨ (mcp): Add patch state constants and process agent context helpers
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✨ (mcp): Add ClientSession loader and multi-transport server identifier extraction
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✨ (mcp): Add async governance decision helpers for call_tool interception
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✨ (mcp): Add blocked-error and truncated audit result recording helpers
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✨ (mcp): Patch ClientSession.call_tool with idempotent async governance interception
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✨ (tests): Create dedicated MCP adapter unit and integration test packages
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✅ (tests): Cover MCPToolBlockedError metadata fields and message behavior
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✅ (tests): Add dedicated MCP patch unit coverage and retire placeholder optional tests
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✅ (integration): Validate direct MCP ClientSession flow blocks denied tools and continues
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✅ (integration): Cover MCP and LangChain adapter coexistence audit flow
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🩹 (integration): Align LangChain coexistence test interceptor with sync callback contract
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