MCP Protocol Conformance

MCP conformance test harness.

Connector by studiomeyer.io · Domain verified by the MCP Registry

IndexedMITLocal (stdio)

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Works with Claude Code, Codex, VS Code, Cursor, Windsurf, Claude Desktop. Read the repository before you give any tool access to your data.

npx agentmarket install connector/studiomeyer-io-protocol-conformance

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

MCP conformance test harness. JSON-RPC, OAuth 2.1 PKCE, schemas, smoke, annotations. CLI + lib.

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What this server can do and what it asks for, from its tool list, install config and code. Checked Nov 1, 2026.

Tools: 2 read · 9 write · 0 delete · 1 not yet classified
Secrets: None asked for
Install scripts: None found
Runs as: Node.js package

Tools by what they do 12

Read from the source code; the running server may list different tools.

Read 2 · Look things up without changing anything.

assertNoBreakingChanges
compareManifests

Write 9 · Create, change, send or run things.

runAnnotationsAudit
runCapabilityIntrospection
runFullSuite
runJsonRpcCompliance
runOauthPkceFlow
runRoundtripSmoke
runSpecVersionAssertion
runToolSchemaValidation
runTransportSuite

Not yet classified 1 · We could not tell from the name and description.

generateReport

Network hosts it talks to 1

github.com · found in code

Tools (12)

Read from the source code; the running server may differ. Descriptions are the server’s own words; hidden characters are shown as [U+…].

assertNoBreakingChanges
Compare a baseline FullReport against a current FullReport. Returns a list of breaking changes and warnings.
compareManifests
Diff two tool manifests — added/removed/changed tools.
generateReport
Render a FullReport as JUnit XML, JSON, or human-readable terminal output.
runAnnotationsAudit
Apply the heuristic annotation rules (destructive name regex, readOnlyHint conflicts) to every advertised tool.
runCapabilityIntrospection
Compare the capabilities the target advertises in initialize against what tools/list, resources/list, prompts/list actually return.
runFullSuite
Run all (or selected) suites and produce a FullReport with summary + per-suite + per-check status.
runJsonRpcCompliance
Run JSON-RPC 2.0 compliance suite (parse-error, invalid-request, method-not-found, invalid-params, internal-error) against a target MCP server.
runOauthPkceFlow
Exercise OAuth 2.1 PKCE S256 flow against the target. Mock-AS by default; real-tenant when --oauth-mode=real.
runRoundtripSmoke
Perform one tools/call per advertised tool. Fails on JSON-RPC transport errors, warns on tool-level isError=true.
runSpecVersionAssertion
Drive an initialize handshake and assert the target advertises the expected MCP spec version.
runToolSchemaValidation
Validate that every advertised tool has a well-formed JSON-Schema inputSchema. Optionally diff against an expected manifest.
runTransportSuite
Verify the target's transport layer (stdio line-delimited JSON or Streamable HTTP).

Signals

Stars: 0
Forks: 0
Open issues: 0
Last commit: Oct 21, 2026 (11 days ago)
Last release: Aug 19, 2026 (2 months ago)

From GitHub (fetched Oct 24, 2026).

Details

Registry name: io.studiomeyer/protocol-conformance
Version: 0.2.1
Auth: No auth
Packages: npm mcp-protocol-conformance
License: MIT
Repository: github.com/studiomeyer-io/mcp-protocol-conformance
First seen: Oct 24, 2026
Last checked: Oct 24, 2026
Source: Official MCP Registry github-graphql

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Cite this page

MCP Protocol Conformance. Agent Mart. https://agentmart.dev/connectors/studiomeyer-io-protocol-conformance (last updated 2026-10-24)