# S01 Roadmap Assessment

**Verdict: Roadmap is fine. No structural changes needed.**

## Risk Retirement

S01 retired both assigned risks:
- **Cross-file symbol resolution accuracy** — proven with 5-file TypeScript fixtures covering direct imports, aliased imports, namespace imports, barrel re-exports, and transitive calls. EdgeResolution enum explicitly marks unresolved edges.
- **Cold query performance** — depth limits implemented on forward_tree() with default of 5, verified by integration tests with depth parameter.

## Success Criteria Coverage

All 6 success criteria have owning slices:
- `aft_call_tree` → ✅ S01 (done)
- `aft_callers` + file modification cycle → S02
- `aft_trace_to` on deeply-nested utility → S03
- `aft_impact` on 5+ callers across 3+ files → S04
- `aft_trace_data` on expression → S04
- Worktree boundaries on all commands → ✅ S01 infrastructure, inherited by S02–S04

## Boundary Map Accuracy

S01 produced what S02 needs. One minor deviation from the boundary map text: `CallGraph` is stored as `RefCell<Option<CallGraph>>` (D088) rather than `RefCell<CallGraph>` (D074). The Option wrapper exists because the graph can't initialize without project_root from configure. This doesn't affect S02's consumption pattern — it just means S02's `callers` command uses the same configure-then-use guard (D089).

## Requirement Coverage

- R025 (impact analysis) had incorrect primary owning slice M003/S05 — corrected to M003/S04 per D079 (trace_data and impact merged into single slice).
- All other requirement mappings remain accurate. No requirements invalidated, surfaced, or re-scoped.

## What Didn't Change

- Slice ordering (S02→S03→S04) still correct — each builds on the prior.
- S02's file watcher risk remains the next high-risk item to retire.
- No slices need merging, splitting, or reordering.
