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test(conformance): pin the conformance suite to 0.2.0-alpha.2 and reconcile the expected-failures baseline#2279

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felixweinberger merged 2 commits into
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Jun 12, 2026
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test(conformance): pin the conformance suite to 0.2.0-alpha.2 and reconcile the expected-failures baseline#2279
felixweinberger merged 2 commits into
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fweinberger/conformance-alpha2-pin

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Bumps the pinned @modelcontextprotocol/conformance release from 0.2.0-alpha.1 to 0.2.0-alpha.2 and reconciles expected-failures.yaml against it: 45 → 33 entries, zero stale.

Motivation and Context

The conformance baseline was established against 0.2.0-alpha.1. Since then, the conformance suite re-scoped the SEP-837 application_type check to draft-version runs only (shipped in 0.2.0-alpha.2), so twelve dated-version client auth scenarios that failed only on that check now pass — those twelve entries existed purely as artifacts of the stale referee and are removed. Keeping the baseline honest matters because the runner fails CI on stale entries, making expected-failures.yaml the per-PR burn-down ledger for draft-spec work.

Referee policy made explicit in the yaml header: the referee is always a published conformance release; newer releases are adopted by deliberately bumping the pin and reconciling the baseline in the same change.

How Has This Been Tested?

All three CI conformance legs run green against 0.2.0-alpha.2 with zero stale entries:

  • test:conformance:client:all (16 expected client failures)
  • test:conformance:server (42/42 green)
  • test:conformance:server:draft (17 expected server failures)

Notes from the reconcile, verified by running both referees:

  • The root cause of the twelve now-passing entries was confirmed in the conformance source (createAuthServer SEP-837 check now draft-scoped).
  • auth/scope-step-up stays red for a new reason (SEP-2350 scope-union WARNING) — entry kept, comment updated.
  • The auth/iss-* scenarios are not present in 0.2.0-alpha.2 (reported unknown → failed); their baseline entries cover them until a release ships them.
  • The draft error-ladder cells disputed in fix: correct server-stateless error-code expectations against the draft spec conformance#336 (−32001/−32602/−32004) remain listed pending that PR.

Breaking Changes

None. Test/CI configuration only; no runtime or API changes.

Types of changes

  • Bug fix (non-breaking change which fixes an issue)
  • New feature (non-breaking change which adds functionality)
  • Breaking change (fix or feature that would cause existing functionality to change)
  • Documentation update

Checklist

  • I have read the MCP Documentation
  • My code follows the repository's style guidelines
  • New and existing tests pass locally
  • I have added appropriate error handling
  • I have added or updated documentation as needed

Additional context

First of a series: subsequent PRs lean on this baseline as their conformance burn-down referee. No changeset (test-only, per repo convention).

…oncile the baseline

Bumps the published conformance pin from 0.2.0-alpha.1 to 0.2.0-alpha.2
and reconciles expected-failures.yaml against it: 45 -> 33 entries. The
twelve removed client auth entries failed only on the SEP-837
application_type check, which 0.2.0-alpha.2 re-scopes to draft-version
runs; the dated-version scenarios now pass. The auth/iss-* scenarios do
not exist in this release yet (reported unknown/failed; covered by
their baseline entries). Disputed draft error-ladder cells stay listed
pending conformance #336. All three CI legs verified green with zero
stale entries.
@felixweinberger felixweinberger requested a review from a team as a code owner June 12, 2026 13:42
@changeset-bot

changeset-bot Bot commented Jun 12, 2026

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⚠️ No Changeset found

Latest commit: c20f029

Merging this PR will not cause a version bump for any packages. If these changes should not result in a new version, you're good to go. If these changes should result in a version bump, you need to add a changeset.

This PR includes no changesets

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@pkg-pr-new

pkg-pr-new Bot commented Jun 12, 2026

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@modelcontextprotocol/node

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commit: c20f029

@maxisbey maxisbey left a comment

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lgtm

@felixweinberger felixweinberger enabled auto-merge (squash) June 12, 2026 13:45
@felixweinberger felixweinberger merged commit 278d725 into main Jun 12, 2026
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@felixweinberger felixweinberger deleted the fweinberger/conformance-alpha2-pin branch June 12, 2026 13:47
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2 participants