MCP server issuing HMAC-attested receipts for AI agent tool-call evidence (verify_action_receipt.v0 reference impl)
python mcp stdlib integrity cursor cross-vendor codex cline audit-trail windsurf ai-agent aider llm-agent mcp-server claude-code agent-observability agent-verification hmac-attested-receipt verify-action post-action-verification
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Updated
May 12, 2026 - Python