pubsub/tasks/016-build-and-exports-validation.md

id, name, status, depends_on, scope, risk, impact, level

id	name	status	depends_on	scope	risk	impact	level
build-and-exports-validation	Validate build, package.json exports, and tsup config for all adapters	completed		narrow	low	component	implementation

Description

Verify that the build pipeline correctly produces dual ESM + CJS output with declarations for all entry points, and that package.json exports map and tsup.config.ts entries are consistent.

Currently only src/index.ts and src/event-target-redis.ts are entry points. As new adapters are added, each needs:

1. An entry in tsup.config.ts entry array
2. A sub-path export in package.json exports map (ESM + CJS + declarations)
3. A barrel re-export in src/index.ts

This task validates the current setup and serves as a checklist item for each adapter task. It can be done early and re-verified as adapters are added.

Acceptance Criteria

• npm run build produces correct output for existing entry points (index, event-target-redis)
• npm run lint (tsc --noEmit) passes
• package.json exports map has correct ESM/CJS/dts paths for each entry point
• tsup.config.ts lists all current entry points
• src/index.ts re-exports everything from all modules
• Peer dependencies and peerDependenciesMeta are correct
• No runtime dependencies (Repeater is inlined)

References

• docs/architecture/build-distribution.md
• package.json
• tsup.config.ts

Notes

Validated all acceptance criteria. No changes were needed — the existing configuration is correct.

Validation Results

1. npm run build produces correct output ✅

   • src/index.ts → dist/index.js (ESM), dist/index.cjs (CJS), dist/index.d.ts + dist/index.d.cts (declarations)
   • src/event-target-redis.ts → dist/event-target-redis.js (ESM), dist/event-target-redis.cjs (CJS), dist/event-target-redis.d.ts + dist/event-target-redis.d.cts (declarations)
   • Code splitting enabled: shared chunk between entries
   • Verified both ESM dynamic import and CJS require work for both entry points

2. npm run lint (tsc --noEmit) passes ✅

3. package.json exports map has correct ESM/CJS/dts paths ✅

4. tsup.config.ts lists all current entry points ✅

5. src/index.ts re-exports everything from all modules ✅

6. Peer dependencies and peerDependenciesMeta are correct ✅

7. No runtime dependencies ✅

Verified type resolution

• Sub-path and barrel imports resolve correctly with tsc
• Works with both skipLibCheck true and false

Verified package contents

• npm pack --dry-run shows 19 files (all dist files + package.json)

Summary

Validated build pipeline, package.json exports map, and tsup config for all adapters. All acceptance criteria pass with no changes required.

• Created: none
• Modified: tasks/016-build-and-exports-validation.md (status update only)
• Tests: 0 (no test files exist yet)