Declare and test the TypeScript reference parser contract

[erinepshovel-code]

The vendored TypeScript reference parser advertises numeric field preservation but lacked an owned contract and a direct execution witness. It now declares its complete existing public surface and field-preservation/no-execution obligation at the canonical owner.

The no-argument CHECKS witness executes the actual TypeScript helper through Node, verifies both parseText and parseFile with digit-bearing fields, and confirms that a temporary inspected source file's observable top-level write never executes. CI installs Node 24.15.0 before running the full Python-hosted test suite. Consumer guidance now covers both reference helpers.

Files: msdmd/parsers/universal.ts owns the declarations; tests/test_universal_parser.py owns the executable witness; .github/workflows/ci.yml owns its Node prerequisite; msdmd/SKILL.md preserves canonical ownership during propagation. No parser grammar or domain semantics change.

Validation: 251 unit tests pass using Node 24.15.0; strict skill drift/compliance/RATIOS, plugin adapter drift, and llms-build checks pass. Exact head 5e7239b52dc5403d8d01fbc63341fe397719ec3f. Required by UCNS #226's TypeScript parser finding; UCNS will reconcile and execute its own exact vendored dependency.

[chatgpt-codex-connector]

Codex Review Summary

This comment shows the latest Codex review activity on this pull request.

Review	Status	Commit	Review trigger
📝 Code Review	✅ Completed 2026-09-12T04:32:53.090455Z	5e7239b	Manual request

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[erinepshovel-code]

@codex review

Please review exact head 5e7239b52dc5403d8d01fbc63341fe397719ec3f. The TypeScript parser now owns its complete existing export surface and numeric-field/no-execution contract. A no-argument Python CHECKS witness executes the actual TypeScript helper with Node 24.15.0, exercising both parseText and parseFile plus an observable inspected-source sentinel. All 251 tests pass and strict drift/compliance/RATIOS, plugin adapter, and llms-build gates pass. No parser grammar or geometry semantics change.

[chatgpt-codex-connector]

Codex Review: Didn't find any major issues. Can't wait for the next one!

Reviewed commit: 5e7239b52d

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