ci: install oasdiff (Tier-2 OpenAPI breaking-change gate)#131
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Diffs the PR's openapi.json against live prod /openapi.json on every handler change. Catches the cross-surface contract drift bug class that CLAUDE.md rule 22 explicitly calls out. Starts warn-only (no fail) so initial runs surface drift without blocking. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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Summary
.github/workflows/oasdiff.yml— diffs the PR's openapi.json against live prod/openapi.jsonon every handler change.fail-on-diff: false) so initial runs surface drift without blocking.🤖 Generated with Claude Code