Audit source: 3331324cb14d2b80dd8dfb424619870a88476706 | Generated: 2026-04-25T12:45:33+08:00 | Scope: refactoring plan

Refactoring Plan

The old RC-1 and RC-2 recommendations are complete:

• RC-1: tool handlers are extracted to lib/tools/codex-*.ts.
• RC-2: storage is split behind the lib/storage.ts facade.
• RC-7: account manager is a slim orchestrator over lib/accounts/*.

Current incremental plan:

1. Keep request-pipeline changes focused; do not split fetch-helpers.ts or request-transformer.ts without behavior-driven tests.
2. Add package-smoke automation for npm pack in a later PR.
3. Raise branch coverage floors only after focused tests cover the remaining request, UI, and legacy index.ts branches.
4. Keep current-structure parity tests updated whenever tool count or registry shape changes.