# S01 Post-Slice Roadmap Assessment

**Verdict: Roadmap holds. No slice changes needed.**

## Risk Retirement

S01 retired the high-risk "Import grouping varies per language and per project" with 26 integration tests proving correct group placement, dedup, and alphabetization across all 6 languages. The 3-tier ImportGroup enum (D053) resolved the design uncertainty cleanly.

## Success Criteria Coverage

All 6 milestone success criteria have at least one remaining owning slice:

- Import + auto-format → S03 (S01 proved imports, S03 adds formatting)
- Multi-file transaction rollback → S04
- Dry-run unified diff → S04
- Python class member insertion with indentation → S02
- Rust derive append to existing attribute → S02
- Format response field with reason → S03

## Boundary Map

Still accurate. S01's forward intelligence confirms:
- Command handlers follow `extract params → validate → parse → backup → mutate → write → validate syntax → respond` — S03's auto-format hook inserts between write and validate syntax steps as planned
- Plugin tool registration follows category-per-file pattern — S02 and S03 will add their own tool files
- `imports.rs` at ~750 lines is near D048's 800-line split threshold but not blocking

## Requirement Coverage

Requirement coverage is sound. One bookkeeping fix applied: REQUIREMENTS.md had incorrect slice references for R015–R019 (off-by-one from a stale 5-slice numbering). Corrected to match the actual 4-slice roadmap:
- R015 → M002/S02 (was S03)
- R016 → M002/S03 (was S04)
- R017 → M002/S03 (was S04)
- R018 → M002/S04 (was S05)
- R019 → M002/S04 (was S05)

## Deviations from Plan

None that affect remaining slices. The ImportGroup refactor (2-tier → 3-tier) and grammar_for() pub change are internal to S01.

## Next Slice

S02 (Scope-aware Insertion & Compound Operations) or S04 (Dry-run & Transactions) — both have `depends:[]`. S03 depends on S01 (satisfied) but not on S02 or S04.
