gate-type-generation

Imported from zerobias-org/module (.claude/skills/gate-type-generation/SKILL.md). Install upstream with npx skills add zerobias-org/module --skill gate-type-generation. Copyright stays with the author.

Gate 2: Type generation

After Gate 1, bundleSpec produced a self-contained spec. Gate 2 runs the codegen and checks the output is shaped how the implementation and tests will need it.

What to check

# 1. Regenerate from the spec
zbb generate
# Exit code must be 0.

# 2. Module-side generated/ exists and is populated
test -d generated/api   && ls generated/api/*.ts >/dev/null   || echo "✗ generated/api/ empty"
test -d generated/model && ls generated/model/*.ts >/dev/null || echo "✗ generated/model/ empty"
test -f generated/api/manifest.json                            || echo "✗ generated/api/manifest.json missing"

# 3. hub-sdk-side generated/ exists (used by test/e2e via describeModule<T>)
test -f hub-sdk/generated/api/index.ts                         || echo "✗ hub-sdk/generated/api/index.ts missing"

# 4. No inline-response leakage
grep -rln "InlineResponse\|InlineRequestBody" generated/ hub-sdk/generated/ 2>/dev/null && \
  echo "✗ Inline*Response types present — hoist inline schemas in api.yml"

# 5. Connector interface is present (for connector modules)
grep -E "export interface [A-Z][a-zA-Z]+Connector" generated/api/index.ts || \
  echo "✗ <Class>Connector interface not generated"

# 6. ConnectionProfile / ConnectionState model types present (connectors only)
test -f connectionProfile.yml && grep -q "export interface ConnectionProfile" generated/model/index.ts \
  || echo "  (skip: not a connector or model export shape changed)"

# 7. Module manifest agrees with package.json
jq -r .name package.json
jq -r '.operations | keys[]' generated/api/manifest.json | head
# Should map every operationId from api.yml to <Api>.<method>; missing entries mean spec/operations drifted.

# 8. No leftover stale files (after a forced clean)
git status --short generated/ hub-sdk/generated/ 2>/dev/null
# These directories are gitignored; output should be empty.

Pass criteria

• zbb generate exits 0
• generated/api/, generated/model/, hub-sdk/generated/api/ all populated
• generated/api/manifest.json exists and reflects every operationId
• No InlineResponse* / InlineRequestBody* types anywhere
• For connectors: a <Class>Connector interface exists and ConnectionProfile is exported from generated/model/index.ts

On failure

The failing task tells you the cause:

• bundleSpec failed inside zbb generate — go back to Gate 1
• generateApi failed — codegen rejects a schema or operation. Read the error verbatim; the fix is in api.yml, never in generated/
• buildHubSdk failed — same root cause as above; the hub-sdk generator runs on the same bundled spec
• InlineResponse* appears — a response body has an inline schema. Hoist it:

  # BEFORE
  '200':
    content:
      application/json:
        schema:
          type: object
          properties: { id: { type: string }, name: { type: string } }
  
  # AFTER
  '200':
    content:
      application/json:
        schema: { $ref: '#/components/schemas/Foo' }

• Stale state — zbb clean && zbb generate to force from cold

Related

• @.claude/skills/api-regeneration/SKILL.md — what zbb generate runs and how to read its output
• @.claude/skills/gate-api-spec/SKILL.md — Gate 1
• @.claude/skills/gate-implementation/SKILL.md — Gate 3 (next)
• @.claude/skills/build-quality/SKILL.md — full lifecycle context