mcp-assert

Version updated for https://github.com/blackwell-systems/mcp-assert-action to version v1.

• This action is used across all versions by ? repositories.

Action Type

This is a Composite action.

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Action Summary

The mcp-assert GitHub Action provides deterministic correctness testing for Model Context Protocol (MCP) servers within CI pipelines. It automates the execution of assertion tests, verifies server behavior against predefined YAML test suites, detects regressions, and generates detailed reports and badges reflecting test results. This action streamlines server validation by ensuring compliance with expected outputs, improving reliability, and enabling continuous integration workflows.

What’s Changed

Deterministic correctness testing for MCP servers. Define assertions in YAML, run them in CI. No LLM required.

• Assert tool outputs with 15 deterministic assertion types
• JUnit XML and badge output
• Regression detection with baselines
• Works with any MCP server in any language

• Blackwell-Systems
• GitHub Actions