ivermin1123/mcp-cassette contract gate

Health-check a live MCP server and gate schema drift against a committed contract snapshot, with one self-updating pull-request comment.

Trust Signals

name	description	required	default
server-command	Command that starts the MCP server on stdio, e.g. "node dist/server.js". Run any build step yourself before this action.	yes	—
snapshot-file	Path to the committed contract snapshot.	no	mcp-contract.snapshot.json
mode	What to run: "check" (health + safety lint), "snapshot" (contract drift), or "both".	no	both
fail-on	Lowest drift tier that fails the job: "breaking", or "dangerous" to also gate enum widening, default-value drift and added optional parameters.	no	breaking
comment	Post (and afterwards update in place) a single results comment on the pull request. Ignored outside pull-request events.	no	true
version	Version of mcp-cassette to run from npm. The special value "local" runs the CLI built in this action's own checkout, which is how this repository dogfoods the action against itself; it is not useful to consumers.	no	0.3.0
github-token	Token used to write the pull-request comment. Needs `pull-requests: write`.	no	${{ github.token }}

no outputs