flow-inventory-codebase-scanlisted

# flow-inventory-codebase-scan Retrofit-mode inventory generator. Code-evidence-driven --- mines an existing Next.js App Router codebase for routes, server actions, dialogs, menu items, and API endpoints; cross-references against a pattern catalog; synthesizes a proposed inventory with 4-tag implementation-status taxonomy and value-priority. This skill is **NOT user-invocable** (`disable-model-invocation: true`, per Q7). The user-facing wrapper is `/flow:retrofit-project`; preflight gates this skill's invocation on `MODE=retrofit`. **Framework locked to Next.js App Router for v1.** Other frameworks (React Router, Remix, Tanstack Start, Vue/Nuxt) are parking-lot candidates --- this skill's code-scan phase encodes Next.js-specific filesystem conventions (`src/app/(...)`, `route.ts`, server actions). Cross-framework support is v1.1+. **Critical relationship to Q19.** Shares Phases 0, 1, 2, 5 verbatim with `flow-inventory-interview` via `_shared/app-classifier-pattern.md` (BC-6955 deliverable). Differs in: - Phase 3 (deterministic code scan) --- retrofit-only. - Phase 4 status taxonomy (4-tag implementation-status for retrofit vs. 3-tag scope-priority for greenfield). - Phase 1 interview is lighter --- code signals dominate. The full design rationale lives in `docs/design-rationale/fda-plugin-interview.md` Q11 (memory:68). Q19 (memory:208) is the greenfield twin. --- ## 1. Phase sequence --- 6 phases | Phase | Source | Description | |---|---|---| | 0 | shared | PROJECT-I