# Documentation review — NEO-45 (E2.M3 salvage mastery catalog + schemas + CI)

**Date:** 2026-05-16

**Scope:** E2.M3 Slice 4 documentation and content contract for [NEO-45](https://linear.app/neon-sprawl/issue/NEO-45): `docs/plans/NEO-45-implementation-plan.md`, `docs/plans/E2M3-pre-production-backlog.md`, `docs/decomposition/modules/E2_M3_MasteryAndPerkUnlocks.md`, related Epic 2 / CT.M1 / alignment / register / `content/README.md`, and hybrid-progression ground truth (`docs/game-design/skills.md`, `progression.md`, `gigs.md`).

**Base:** Workspace as of 2026-05-16; `python3 scripts/validate_content.py` and `python3 scripts/check_decomposition_language.py` both exit 0.

## Verdict

**Approve**

## Summary

NEO-45 documentation is coherent with shipped content: implementation plan, E2.M3 module (freeze table, **`perks` map** data contract, **In Progress** status, NEO-46 handoff), CT.M1, `content/README.md`, alignment/register rows, and E2M3-01 backlog checkboxes align with the **salvage-only** prototype track and CI gates. Hybrid vocabulary is preserved (skill mastery vs gig progression; `gigs.md` clarifies gig mastery is separate from E2.M3).

## Documentation checked

| Document | Result |
|----------|--------|
| `docs/plans/NEO-45-implementation-plan.md` | **Matches** — kickoff decisions, frozen ids, technical approach, acceptance checklist, and verification steps align with `content/mastery/prototype_salvage_mastery.json`, `content/schemas/mastery-catalog.schema.json`, and `scripts/validate_content.py` behavior. |
| `docs/decomposition/modules/E2_M3_MasteryAndPerkUnlocks.md` | **Matches** — freeze table, designer note, **`perks` map** / `tiers[]` shape, **In Progress** status, NEO-46 handoff, NEO-45 acceptance footnote. |
| `docs/plans/E2M3-pre-production-backlog.md` | **Matches** — E2M3-01 acceptance criteria marked done (NEO-45); E2M3-02 points at NEO-45 gate constants. |
| `docs/decomposition/modules/CT_M1_ContentValidationPipeline.md` | **Matches** — mastery paragraph matches script gates (schema, `skillId`, duplicate `perkId`, branch integrity, salvage-only Slice 4). |
| `docs/decomposition/modules/documentation_and_implementation_alignment.md` | **Matches** — E2.M3 row correctly states NEO-45 landed and follow-on NEO-46–49 planned. |
| `docs/decomposition/modules/module_dependency_register.md` | **Matches** — E2.M3 **In Progress**, Depends On **E2.M1, E2.M2**, NEO-45 landed in note. |
| `docs/decomposition/epics/epic_02_skills_and_progression.md` | **Matches** — E2.M3 / Slice 4 pointers, skill-vs-gig XP split, and salvage flagship scope. |
| `docs/decomposition/modules/E2_M2_XpAwardAndLevelEngine.md` | **Matches** — E2.M3 cross-link for level-up re-evaluation; no mastery XP bar implied. |
| `content/README.md` | **Matches** — `mastery/` row, Slice 4 freeze, validate command; anchors target E2.M3 designer + freeze headings. |
| `content/schemas/mastery-catalog.schema.json` | **Matches** — documents E2.M3 module; `schemaVersion`, `perks`, `tracks`, `tierIndex`, stable id patterns. |
| `content/mastery/prototype_salvage_mastery.json` | **Matches** — one `salvage` track; tier 1 empty `perkIds`; tier 2 perks + branch `displayName`; frozen ids per module freeze table. |
| `docs/game-design/skills.md` | **Matches** — Mastery and perks section points to E2.M3; respec open; gig tree separate. |
| `docs/game-design/progression.md` | **Matches** — skill vs gig vocabulary; no mastery XP conflation. |
| `docs/game-design/gigs.md` | **Matches** — gig mastery **open**; line clarifies analogy to skill branch/perk depth, not E2.M3 module. |
| `docs/decomposition/modules/E2_M1_SkillDefinitionRegistry.md` | **N/A** — no mastery-specific change required; `salvage` id exists for cross-check. |
| `scripts/validate_content.py` | **Matches** — docs describe gates implemented in `_validate_mastery_catalogs` / `_prototype_slice4_gate`. |

## Blocking issues

(none)

## Suggestions

1. ~~**E2.M3 module + register status** — Set **Status** to **In Progress** in `E2_M3_MasteryAndPerkUnlocks.md` (summary table) and `module_dependency_register.md` (E2.M3 row), mirroring E2.M1 after NEO-33 and the alignment doc **In Progress** row. Reserve **Done** for when NEO-49 closes the Slice 4 engine/HTTP/telemetry slice.~~ **Done.**

2. ~~**E2M3-pre-production-backlog E2M3-01 checkboxes** — Mark the three E2M3-01 acceptance criteria `[x]` when NEO-45 is merged/Done in Linear, or add a one-line note under E2M3-01: “Catalog + CI: **NEO-45** (see implementation plan).”~~ **Done.**

3. ~~**E2.M3 Data contract — catalog shape** — Add a short subsection (or extend **Data contract**) documenting the shipped JSON layout: top-level **`perks`** map (keys = `perkId`), **`tracks`** array, **`MasteryTrack.tiers[]`** with `tierIndex` / `requiredLevel` / `branches[]` / `perkIds[]`. Link `content/schemas/mastery-catalog.schema.json` and note map-key === `PerkDef.id` (enforced in CI).~~ **Done.**

4. ~~**NEO-46 plan handoff** — When kicking off NEO-46, reference NEO-45 plan **gate constants** (salvage-only track count, branch-set equality tier-to-tier) so server loader parity stays explicit (already listed as a risk in the NEO-45 plan).~~ **Done.** E2.M3 **NEO-46 handoff** + E2M3-02 backlog pointer; NEO-45 plan open questions.

5. ~~**`gigs.md` gig-mastery line** — Clarify “E2.M3-style expression” means **analogous branch/perk depth for gigs**, not the E2.M3 **skill** module; optional cross-link to a future gig-mastery epic/module when named.~~ **Done.**

## Nits

- ~~Tier 2 branches in `prototype_salvage_mastery.json` omit `displayName` while tier 1 includes it — valid per schema; optional designer note that `displayName` is optional per branch row.~~ **Done.** Catalog + designer note.
- ~~Module **Acceptance criteria (E2.M3 / Slice 4)** bullets describe **runtime** unlock behavior (NEO-47+); consider a footnote that NEO-45 satisfies **data + CI** only.~~ **Done.**

## Verification

- `pip install -r scripts/requirements-content.txt && python3 scripts/validate_content.py` — expect `content OK` with 1 mastery catalog and 1 mastery track.
- `python3 scripts/check_decomposition_language.py` — exit 0.
- After doc edits: grep `E2.M3` status in `module_dependency_register.md` vs `documentation_and_implementation_alignment.md` for consistency.
- Open `content/README.md` links to E2.M3 `#designer-note-tiers-branches-and-level-gates` and `#prototype-slice-4-freeze--salvage-flagship-neo-45` in the GitHub UI (anchor fragility check).
- Manual negative cases from NEO-45 plan (unknown `skillId`, duplicate `perkId`, extra track) — confirm stderr messages remain actionable.