Api Types
Maintain Supabase API types.
by supabase · Apache-2.0
The skill
Maintain Supabase API types. Use when changing generated API type declarations, OpenAPI schemas, or investigating API type deployment drift.
API types
The generated API contract has three specs: API v1, API v2, and Platform. Their committed outputs are packages/api-types/types/api-v1.d.ts, packages/api-types/types/api-v2.d.ts, and packages/api-types/types/platform.d.ts.
Update types
- Make the API/schema change and ensure it is deployed to production before relying on a type PR. Production is the merge-gate source of truth.
- Update the committed types, either:
- Run
pnpm api:codegenagainst a running local API environment. It fetches all three local OpenAPI specs and updates the committed files. - Or, if you don't have a local API environment running, run
pnpm api:codegen:prod. It fetches the three production OpenAPI specs directly and overwrites the committed files with them (no diffing — it always writes).
- Run
- Inspect and commit only the intended generated type changes.
- Run
pnpm api:verify-types. It fetches the three production OpenAPI specs, regenerates types with the repository tooling, and compares them with the committed files.
Complete the update only when pnpm api:verify-types passes after the production deployment is available. If you used api:codegen:prod, this should already pass since the committed files came straight from production.
Interpret verification
- A pass means the committed generated declarations match all three production specs at the time of the check.
- A mismatch means production and the committed files differ. If the API is not deployed, deploy it and rerun the check. If production is correct, regenerate and review the changed files.
- A fetch failure means the production schema endpoint could not be read; fix or retry the endpoint before treating the result as a type mismatch.
Pull requests
The Verify production API types CI job runs when packages/api-types/types/** changes and performs the same production comparison. It is a required merge check. Run the local verifier before requesting review and treat a failed CI verification as production drift that must be resolved.
Use this skill
Connect your agent to the Skill Store MCP server and ask for it by ref: supabase/api-types-22180513288.
Details
- Publisher
- supabase
- Category
- Software Development › APIs & backend
- License
- Apache-2.0
- Updated
- 2026-10-19
References
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