---
id: 03-migrate-blog-binders
epic: binder-wrap-helper
title: Migrate blog feature binders to wireUseCase
type: technical-story
status: todo
feature: blog
depends-on: [01-wire-use-case-helper]
blocks: [08-holistic-validation]
---

## Goal

Replace the inline `withSpan + withCapture (+ optional withAudit)` blocks in `packages/blog/src/di/bind-production.ts` and `packages/blog/src/di/bind-dev-seed.ts` with `wireUseCase` calls for all three blog use cases (getArticles, getArticleBySlug, createArticle).

## Why

Blog's binder pair contributes one of the five top-ten `pnpm fallow` clone groups. The inline wrap blocks are mechanical boilerplate identical in shape to auth, media, marketing-pages, and navigation.

## Done when

- `bind-production.ts` and `bind-dev-seed.ts` call `wireUseCase` for getArticles, getArticleBySlug, and createArticle — no inline `withSpan(... withCapture(...))` pattern remains in either file.
- Audit-bearing use cases (per manifest check) pass `auditLog` + audit schema; non-audit use cases omit it.
- `pnpm test --filter @repo/blog` green.
- `pnpm typecheck --filter @repo/blog` green.
- `assertFeatureConformance` does not throw at boot for blog.

## In scope

- `packages/blog/src/di/bind-production.ts` — use-case binding blocks only.
- `packages/blog/src/di/bind-dev-seed.ts` — use-case binding blocks only.
- Repository and service bindings stay as-is.
- Controller bindings stay as-is.

## Out of scope

- Controller bindings — deferred follow-up per PRD.
- Changes to blog use-case implementations, schemas, or tests outside the binder.

## Tasks

- [ ] Read `packages/blog/src/feature.manifest.ts` — identify audit-bearing vs non-audit use cases
- [ ] Read `packages/blog/src/di/bind-production.ts` — understand inline wrap shape and deps
- [ ] Read `packages/blog/src/di/bind-dev-seed.ts` — same for dev-seed mode
- [ ] Update `packages/blog/src/di/bind-production.ts` — replace three inline wrap blocks with `wireUseCase` calls
- [ ] Update `packages/blog/src/di/bind-dev-seed.ts` — same
- [ ] Run `pnpm test --filter @repo/blog` — verify all tests pass
- [ ] Run `pnpm typecheck --filter @repo/blog` — verify no type regressions