suaveplan/openspec/archive/2026-05-18-add-slack-client/tasks.md

Tasks — add @suaveplan/slack-client

Every checkbox MUST reflect work actually done in this change. No retroactive ticking.

1. Spec authoring

• 1.1 Read ../suaveplan/enterprise/slack-client.md end-to-end
• 1.2 No prior openspec/specs/slack-client/spec.md (new capability)
• 1.3 Read openspec/AGENTS.md workflow (CLAUDE.md ref) + skill enterprise-package-migration
• 1.4 Draft proposal.md from openspec/templates/proposal.md
• 1.5 Source-mapping table filled — every requirement cites a line range or appears under "no source line"
• 1.6 Draft specs/slack-client/spec.md from openspec/templates/spec-delta.md
• 1.7 Every requirement carries a **Verified by:** line

2. Implementation

• 2.1 package.json + tsconfig.lib.json + vite.config.ts + vitest.config.ts at 0.1.0
• 2.2 src/error-codes.ts — defineCodes("SLACK", […]) registry + 8 typed error subclasses
• 2.3 src/types/slack-client.types.ts — public shapes (SlackMessage, SlackChannel, SlackUser, SlackResponse, SlackDeliveryReport, options bags)
• 2.4 src/schemas/schemas.ts — Zod schemas for every public boundary input
• 2.5 src/otel/metrics.ts — meter + four instruments wired via @opentelemetry/api
• 2.6 src/client/retry-after.ts — parser for delay-seconds, HTTP-date, x-ratelimit-reset
• 2.7 src/client/classify.ts — HTTP-status and slack-error-string classifiers
• 2.8 src/client/slack-api-client.ts — SlackApiClient with injectable FetchLike/Clock/Rng/LoggerLike
• 2.9 src/webhook/slack-webhook.ts — SlackWebhook with injectable transport bag
• 2.10 src/fakes/fake-fetch.ts — deterministic test double (no vi.mock)
• 2.11 src/index.ts — explicit named re-exports, side-effect import "./error-codes.js"

3. Tests

• 3.1 Unit tests at every <feature>.test.ts site, ≥1 test per scenario in the spec delta — 121 tests, 8 files
• 3.2 OTel test asserts emission via real in-memory MeterProvider
• 3.3 Every it(...) carries { timeout: 5000 } (or 30000 for genuinely async)
• 3.4 Test files import ONLY from @suaveplan/testing/runner — zero direct vitest / bun:test imports

4. Documentation

• 4.1 Sibling .md for every implementation .ts (≥200 words, basic + advanced examples, full API reference)
• 4.2 README at package root only

5. Pre-archive verification (5-gate triple)

• 5.1 bun run check — slack-client clean (one pre-existing root-level failure in packages/api/api-plugin-vault/src/plugin/plugin.ts:217 is out of scope; verified slack-client itself is biome-clean)
• 5.2 bunx turbo lint typecheck test --filter=@suaveplan/slack-client — green (121 tests pass)
• 5.3 bunx turbo test:coverage --filter=@suaveplan/slack-client — 100/100/100/100 istanbul
• 5.4 bun scripts/openspec-conformance.ts @suaveplan/slack-client — PASS @suaveplan/slack-client (0 error, 5 warn, 0 info)
• 5.5 bunx turbo build --filter=@suaveplan/slack-client — green, 9 modules in dist

6. Pre-archive 9-row checklist

• 6.1 Generics threaded; literal types preserved through public surface (SlackErrorCode literal union, SLACK_CODES frozen record)
• 6.2 Zod schemas wired at every declared boundary (constructors call .safeParse and throw SlackConfigMissingError with the ZodError as cause)
• 6.3 Every error code in error-codes.ts thrown by ≥1 production path (all 8 verified via conformance script)
• 6.4 Strict-mode behaviors tested — constructor rejection on empty/invalid options AND Block-Kit .strict() rejection of unknown keys
• 6.5 OTel instruments emitted from production paths and asserted with real in-memory MeterProvider (4 tests in src/otel/metrics.test.ts)
• 6.6 Lifecycle dedup tested — delivery-report Map idempotency, webhook message-id monotonicity
• 6.7 No retroactive tick — every box above reflects work done in this change
• 6.8 No export * in any feature barrel (verified — every export is named)
• 6.9 No direct vitest / bun:test imports in test files (every test imports from @suaveplan/testing/runner)

7. Archive

• 7.1 Fold spec delta into openspec/specs/slack-client/spec.md
• 7.2 Move openspec/changes/add-slack-client/ → openspec/archive/2026-05-18-add-slack-client/