# AD-525 Build Report — Creative Expression v1

## Scope

v1 ships 2 of 5 capabilities from AD-525 roadmap entry:

1. **Creative Skills Inventory** — `CreativeSkillsRegistry` with 8 default skills, per-skill Big Five trait affinity.
2. **Creative Output to Ship's Records** — `CreativeOutputWriter` writing to `creative/{callsign}/{topic_slug}.md` via existing `RecordsStore`.

Deferred: AD-525b (time allocation), AD-525c (code-as-creative), AD-525d (cultural emergence), AD-525e (collaboration).

## Sections Implemented

- §0 — 2 new EventTypes added to `events.py` (`CREATIVE_WORK_PUBLISHED`, `CREATIVE_SKILL_AFFINITY_QUERIED`).
- §1 — `src/probos/creative/` package created (`__init__.py`, `skills_registry.py`, `output_writer.py` with inline `CreativeOutputError`).
- §2 — `CreativeSkill` frozen dataclass.
- §3 — `CreativeSkillsRegistry` with 8 seed skills + read-only API.
- §4 — `CreativeOutputWriter.publish()` + `list_works_by_author()`.
- §4a — Explicit kwarg-by-kwarg `write_entry` call with `tags=["creative", medium, skill_id]` per pass-2 N1 / R1.
- §5 — `CreativeExpressionConfig` Pydantic model on `SystemConfig.creative_expression`.
- §6a — `_wire_creative_expression` sync `def` (mirrors `_wire_anomaly_window`).
- §6b — Invocation at `finalize.py` immediately after `_wire_self_distillation`.

## Confirmations

- `runtime.profile_store` is **NOT** consumed (verified zero reads in new code; `affinity_score` accepts a generic `dict[str, float]`).
- Frontmatter encoding uses `tags` (NOT arbitrary frontmatter keys).
- `_wire_creative_expression` is **sync** (NOT async).
- Scope held to 2 of 5 capabilities — no time-allocation, no code-as-creative, no cultural-emergence, no collaboration logic.
- DECISIONS.md narrates `tags=["creative", medium, skill_id]` (pass-2 N1 fix applied — no legacy `type: creative` claim).

## Tests

`tests/test_ad525_creative_expression.py`: **21/21 passed** (focused gate, `-n 0`).

## Full Gate

```
10723 passed, 15 skipped, 2 failed in 387.85s
```

Two failures are **unrelated to AD-525**:

1. `test_recursive_validity_ad685b_prompt_clean` — pre-existing baseline failure; the AD-685b prompt has been moved to `prompts/archive/`. Was already failing before AD-525 work.
2. `test_auto_commit_after_debounce` — xdist git-debounce timing flake; **passes in serial** (re-run confirmed).

Net delta vs baseline: 10703 → 10723 passing = **+20** (added 21 tests; net +20 because `test_auto_commit_after_debounce` was passing in baseline but flaked here).

## Hard-Stops Triggered

**0** — none of the 8 hard-stops in the dispatch fired.

- `RecordsStore.write_entry` signature matched assumption.
- `creative/` path namespace was unused (verified via grep).
- CrewProfile Big Five fields are nested under `.personality`; adapter `PersonalityTraits.to_dict()` used.
- No Earned Agency rank gating attempted.
- No scope creep into AD-525b/c/d/e territory.
- `profile_store` not wired (correctly skipped per spec).

## Verified Against Codebase (post-build)

- `src/probos/events.py:225-227` — new EventTypes added under "Creative Expression (AD-525)" header.
- `src/probos/config.py:1815` — `CreativeExpressionConfig` Pydantic model with `Literal` classification.
- `src/probos/config.py:1934` — `SystemConfig.creative_expression` field with `Field(default_factory=...)`.
- `src/probos/startup/finalize.py:84-107` — `_wire_creative_expression` (sync def).
- `src/probos/startup/finalize.py:283-284` — invocation immediately after `_wire_self_distillation`.
- `src/probos/creative/__init__.py` / `skills_registry.py` / `output_writer.py` — package surface.

## Flakes Observed

- `tests/test_knowledge_store.py::TestGitIntegration::test_auto_commit_after_debounce` — xdist timing flake; passed in serial.
