# Session 0085.0 — Transcript

> App: ohm
> Start: 2026-06-07T16-55 (PST)
> Type: planning-and-executing
> Status: **FINALIZED.**

## Launch prompt

`/goal next` → resume stored goal: **SLICE-2** of configurable-collection-metadata
— collection `fields:` schema + central `metadata_schema.validate`.

## Pre-state

- Repo `ben.stull/rfc-app` on clean, pushed `main` = `98c276a` @ **v0.47.0**
  (SLICE-1 sidecars shipped session 0084).
- One stale in-flight transcript surfaced at claim: **SESSION-0080**
  (`--INPROGRESS` from 2026-06-06), but sessions 0083/0084 finalized *after* it —
  almost certainly a crash orphan the SessionEnd hook didn't flag. Not adopted
  (not my work, no context, not annotated `ENDED-UNFINALIZED`); noted and
  proceeded (autonomous default).
- Memory `Next /goal:` field said SLICE-2; design doc
  `docs/design/2026-06-06-configurable-collection-metadata.md` §7.2 is the spec.

## Plan

Plan doc: `docs/design/plans/2026-06-07-slice2-collection-field-schema.md`
(archived to `ben/ohm-rfc:plans/`).

DoD (design §7.2 SLICE-2): `.collection.yaml fields:` parsed + stored (rides in
existing `collections.config_json`, no migration); `metadata_schema.validate`
advisory at read / enforcement point for write (write endpoints land SLICE-4/5);
schema served via `GET …/collections/{id}`; no-`fields:` collections unchanged
(INV-5).

Steps: (1) new `app/metadata_schema.py` — lenient `parse_fields` + advisory
`validate` (enum/tags/text); (2) `registry.parse_collection_manifest` reads
`fields:` into config; (3) `collections.get_collection` unpacks `fields` from
config_json → served by API; (4) `cache._refresh_collection_corpus` runs advisory
validation, OR-ing into `metadata_malformed` (INV-3); (5) full suite green, bump
0.48.0 + CHANGELOG, PR + merge. TDD throughout.

## Turn-by-turn arc

1. Classified the `/goal next` opening → planning-and-executing; ran
   `wgl-planning-and-executing` init: computed PST start, confirmed clean/pushed
   `main`, peeked in-flight (SESSION-0080 orphan), claimed **session 0085**.
2. Read the design doc + amended SPEC §22.4a + the SLICE-1 surfaces
   (`metadata.py`, `entry.py` `extra`, `registry.py` ingest, `collections.py`
   read, `cache.py` corpus mirror, `api_collections.py`). Confirmed schema field
   values land in `Entry.extra` (custom) / `Entry.tags` (tags), and that the
   `.collection.yaml` `fields:` block flows through `parse_collection_manifest` →
   `CollectionEntry.config` → `collections.config_json` — **no migration needed**.
3. Wrote the plan doc + seeded the transcript Plan block. Logged three deferred
   decisions (multi-enum=no; default-collection-fields out of scope; lenient
   schema parsing).
4. TDD: wrote `tests/test_metadata_schema.py` (19 cases), then
   `app/metadata_schema.py` → green.
5. Wired ingest: `registry.parse_collection_manifest` reads `fields:`;
   `collections.get_collection` unpacks `_fields_from_config`; extended
   `test_collection_registry.py` + `test_collection_helpers.py` → green.
6. Wired advisory validation in `cache._refresh_collection_corpus` (fetch schema
   once/collection, validate per entry, OR into `metadata_malformed`); extended
   `test_metadata_cache.py` (3 cases incl. INV-5/INV-7) → green.
7. Full backend suite: **601 passed**. Bumped VERSION + package.json → 0.48.0,
   wrote CHANGELOG 0.48.0 (+ upgrade steps). Committed, pushed branch
   `worktree-metadata-slice2-schema`, created PR #32 (Gitea API), merged, synced
   `main` = `1bcf8aa`, pruned branch.
8. Finalize: archived the plan to the content repo, updated memory + index,
   published this transcript.

## Cut state

- Origin `main` = `1bcf8aa` @ **v0.48.0**; tree clean. Backend suite 601 green.
- SLICE-2 complete (all DoD met). Write-boundary *enforcement* intentionally
  deferred to SLICE-4/5 (no edit endpoints yet). No deploy (3-minor undeployed
  gap vs OHM @0.46.1 — batched intentionally).

## Outcome

SLICE-2 of configurable-collection-metadata shipped as **v0.48.0** (PR #32,
origin `main` = `1bcf8aa`). New `app/metadata_schema.py` (lenient `parse_fields`
+ advisory `validate`); `.collection.yaml fields:` ingested via registry into
`collections.config_json`; schema served on the collection API; advisory
validation wired into the corpus mirror (`metadata_malformed`, INV-3). Backend
suite green (601 passed). No DB migration. INV-5 (no-fields unchanged) tested.

**Next:** SLICE-3 — faceted left-pane filtering (read): list endpoint returns
facet counts + honors filter params incl. `malformed`; left pane renders faceted
groups with counts + tag-value search. Has a UI surface → Playwright E2E.

## Deferred decisions

- **Q2 (multi-enum in v1?)** → decided **no**: v1 field types are
  `enum`/`tags`/`text` only, per design §6.3. Unknown types ignored with a
  warning; `multi-enum`/`ref` deferred.
- **Default-collection `fields:`** → out of SLICE-2: a default collection has no
  `.collection.yaml`, and the N=1 default is `document` with no fields (INV-5).
  Field schemas attach to **named** collections (with a manifest). A deployment
  wanting fields on its primary corpus declares a named collection. Consistent
  with the opt-in story; flagged so SLICE-3+ can revisit if needed.
- **Lenient schema parsing** → a bad `fields:` block / field def is skipped with
  a warning, never fatal (INV-3 spirit), unlike structural manifest errors
  (`type`/`visibility`) which still raise.
- **Deploy deferred** → SLICE-2 shipped v0.48.0 to `main` but was **not**
  deployed. OHM is live @0.46.1; three non-breaking framework minors (0.46.2,
  0.47.0, 0.48.0) now accumulate undeployed — matching the prior slice sessions'
  pattern of batching the deploy. A dedicated flotilla deploy gesture should pick
  up the batch when the operator wants it.
- **Orphan session 0080** → surfaced at claim but not adopted/finalized (not this
  session's work, no context, not flagged ENDED-UNFINALIZED). Left for the
  operator to reconcile.