chore(factory): repin MCP Skills evidence to accepted core SEP by Copilot · Pull Request #2015 · groupthinking/EventRelay

Copilot · 2026-09-18T20:48:27Z

Canonical issue

Outcome

Fixture-only MCP Skills receipts now point to the accepted core SEP as the normative contract, while preserving the older ext-skills commit as historical design evidence and recording the later link-repair migration. This keeps provenance accurate without changing runtime authority or claiming live client support.

Scope

Included:
- Receipt provenance
  - Split wire_contract into explicit sources:
    - normative_contract → modelcontextprotocol/modelcontextprotocol/seps/2640-skills-extension.md@1eb5bbe...
    - design_history → modelcontextprotocol/ext-skills/specs/skills.md@d866efd...
    - evidence_source_migration → modelcontextprotocol/modelcontextprotocol/...@f56f204...
  - Kept specification_commit aligned to the accepted core SEP commit for compatibility.
- Regression coverage
  - Added a focused test that fails if a working-group/archive source is emitted as the normative specification.
- Docs
  - Updated the SEP watch note to reflect the source-of-truth move into core MCP while preserving historical receipts.
Explicitly excluded:
- Live ChatGPT import support
- Any production activation or external skill execution
- Broader parser/runtime changes outside the fixture receipt provenance

Risk

Risk level: low
Failure mode:
- Consumers expecting only the legacy single-source interpretation of wire_contract could misread the richer receipt shape.
Rollback:
- Revert the receipt field expansion and test/doc updates in this PR.

Verification

List exact automated and manual checks, tied to the current head SHA.

Focused tests
Required CI
Review threads resolved

Production evidence

Not applicable. This is a fixture-only provenance repair; no deploy, runtime activation, or external MCP skill execution path changed.

Agent handoff

One canonical issue is linked
No competing PR implements the same issue
Acceptance criteria are satisfied
Required checks pass on the current head
Human decision is requested only for product, security, irreversible infrastructure, or production approval

wire_contract: {
  extension_id: MCP_SKILLS_EXTENSION_ID,
  specification_commit: '1eb5bbe8ac933bdb595fedc687b8ed545e440491',
  normative_contract: {
    repository: 'modelcontextprotocol/modelcontextprotocol',
    path: 'seps/2640-skills-extension.md',
    commit: '1eb5bbe8ac933bdb595fedc687b8ed545e440491',
  },
  design_history: {
    repository: 'modelcontextprotocol/ext-skills',
    path: 'specs/skills.md',
    commit: 'd866efdba298b55b8156c7b7aa1bdebc1b625f4c',
  },
}

Fixes chore(factory): repin MCP Skills evidence to accepted core SEP #2004

coderabbitai · 2026-09-18T20:48:34Z

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Co-authored-by: groupthinking <154503486+groupthinking@users.noreply.github.com>

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Pull request overview

Updates fixture-only MCP Skills import receipt provenance to treat the accepted core SEP as the normative contract, while preserving working-group spec artifacts as historical evidence.

Changes:

Expand wire_contract in generated receipts to include normative_contract, design_history, and evidence_source_migration (while keeping specification_commit aligned to the core SEP).
Update docs to reflect the “core SEP is source of truth” shift and preserve historical provenance links.
Add a regression test ensuring the normative contract source is the core SEP (not archive/research sources).

Reviewed changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 4 comments.

File	Description
docs/mcp-skills-sep-2640-watch.md	Updates the watch note to treat the core SEP as normative while retaining ext-skills as historical evidence.
apps/web/src/lib/chatgpt-mcp-skill-import.ts	Splits wire contract provenance into explicit sources and emits them in receipts.
apps/web/src/lib/tests/chatgpt-mcp-skill-import.test.ts	Adds regression coverage to prevent emitting archive/research sources as “normative”.

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      wire_contract: {
        extension_id: MCP_SKILLS_EXTENSION_ID,
-        specification_commit: 'd866efdba298b55b8156c7b7aa1bdebc1b625f4c',
+        normative_contract: {
+          repository: 'modelcontextprotocol/modelcontextprotocol',
+          path: 'seps/2640-skills-extension.md',
+          commit: '1eb5bbe8ac933bdb595fedc687b8ed545e440491',
+        },
+        design_history: {
+          repository: 'modelcontextprotocol/ext-skills',
+          path: 'specs/skills.md',
+          commit: 'd866efdba298b55b8156c7b7aa1bdebc1b625f4c',
+        },
+        evidence_source_migration: {
+          repository: 'modelcontextprotocol/modelcontextprotocol',
+          path: 'seps/2640-skills-extension.md',
+          commit: 'f56f204f6290f6531b14d5734eb3e0a10f0eb201',
+        },
      },


+    expect(receipt.wire_contract.normative_contract.repository).toBe(
+      'modelcontextprotocol/modelcontextprotocol',
+    );
+    expect(receipt.wire_contract.normative_contract.path).toBe('seps/2640-skills-extension.md');
+    expect(receipt.wire_contract.normative_contract.commit).toBe(
+      '1eb5bbe8ac933bdb595fedc687b8ed545e440491',
+    );


@@ -4,8 +4,21 @@ import { canonicalGateJson, hashCanonical } from '@/lib/gate-transition';
 export const MCP_SKILLS_EXTENSION_ID = 'io.modelcontextprotocol/skills' as const;
 export const CHATGPT_SKILL_IMPORT_RECEIPT_VERSION =
  'eventrelay.chatgpt-mcp-skill-import-receipt.v1' as const;


+export const MCP_SKILLS_NORMATIVE_CONTRACT = {
+  repository: 'modelcontextprotocol/modelcontextprotocol',
+  path: 'seps/2640-skills-extension.md',
+  commit: '1eb5bbe8ac933bdb595fedc687b8ed545e440491',
+} as const;
+export const MCP_SKILLS_DESIGN_HISTORY = {
+  repository: 'modelcontextprotocol/ext-skills',
+  path: 'specs/skills.md',
+  commit: 'd866efdba298b55b8156c7b7aa1bdebc1b625f4c',
+} as const;
+export const MCP_SKILLS_EVIDENCE_SOURCE_MIGRATION = {
+  repository: 'modelcontextprotocol/modelcontextprotocol',
+  path: 'seps/2640-skills-extension.md',
+  commit: 'f56f204f6290f6531b14d5734eb3e0a10f0eb201',


vercel · 2026-09-18T21:41:08Z

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Project	Deployment	Actions	Updated
v0-uvai	Ready	Preview, v0	Sep 18, 2026 9:53pm UTC

Initial plan

b05ad0c

Copilot AI assigned Copilot and groupthinking Sep 18, 2026

Copilot started work on behalf of groupthinking September 18, 2026 20:50 View session

Copilot AI linked an issue Sep 18, 2026 that may be closed by this pull request

chore(factory): repin MCP Skills evidence to accepted core SEP #2004

Closed

chore: repin mcp skills receipt provenance

b2c04bf

Co-authored-by: groupthinking <154503486+groupthinking@users.noreply.github.com>

Copilot AI changed the title ~~[WIP] Chore: Repin MCP skills evidence to accepted core SEP~~ chore(factory): repin MCP Skills evidence to accepted core SEP Sep 18, 2026

Copilot finished work on behalf of groupthinking September 18, 2026 20:53

Copilot AI requested a review from groupthinking September 18, 2026 20:53

groupthinking approved these changes Sep 18, 2026

View reviewed changes

groupthinking marked this pull request as ready for review September 18, 2026 21:00

Copilot AI balanced review requested due to automatic review settings September 18, 2026 21:00

Merge branch 'main' into copilot/chore-repin-mcp-skills-evidence

ba350f6

groupthinking merged commit 04f0a64 into main Sep 18, 2026

groupthinking deleted the copilot/chore-repin-mcp-skills-evidence branch September 18, 2026 21:00

Copilot AI reviewed Sep 18, 2026

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Copilot started reviewing on behalf of groupthinking September 18, 2026 21:51 View session

github-actions Bot added documentation Improvements or additions to documentation javascript Pull requests that update javascript code tests labels Sep 18, 2026

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chore(factory): repin MCP Skills evidence to accepted core SEP - #2015

chore(factory): repin MCP Skills evidence to accepted core SEP#2015
groupthinking merged 3 commits into
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copilot/chore-repin-mcp-skills-evidence

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