Session 0067.0 — Transcript

App: ohm Start: 2026-06-03T20-31 (PST) Status: PLACEHOLDER — claimed at session start; finalized at session end.

This file reserves session ID 0067 for ohm. The driver replaces this body with the full transcript and renames the file to its final SESSION-0067.0-TRANSCRIPT-2026-06-03T20-31--.md form at session end.

Launch prompt

Session-init → goal proposal selected §22 M3 (next slice after M1+M2). Operator invoked brainstorming to design it.

Plan

Goal: Design (this session) the backend half of §22 slice M3 — multi-project registry mirror + data spine + runtime-config APIs. Roadmap: ohm-rfc/ROADMAP.md defers to framework slicing plan in rfc-app/docs/design/multi-project-spec.md Part C.

Brainstorming decisions:

Scope split at the backend/frontend seam — this session = M3-backend; routing/branding/directory/switcher = a later M3-frontend spec.
Build the full initial_state/unreviewed review plumbing now.
Config hard cut: REGISTRY_REPO required, META_REPO removed.
Re-stamp default → config slug by rewriting project_id everywhere (folded into the 12-table PK rebuild).
Registry mirror in a self-contained app/registry.py (Option A), driven by the existing webhook + Reconciler.sweep().

Deliverable: design spec at rfc-app/docs/superpowers/specs/2026-06-03-m3-backend-design.md (committed on branch m3-backend-registry-spine, 6f356d3) → user review → writing-plans → implementation.

Planning discoveries (folded into spec):

Re-stamp must be a Python startup step — pure-SQL migrations can't read DEFAULT_PROJECT_ID (same constraint that forced M1's seed_default_project).
The 12-table PK rebuild has a wide blast radius (~10 ON CONFLICT sites + every RFC/branch writer needs project_id threading, FK-bomb post-re-stamp). Operator chose to split M3-backend into two plans: Plan A (registry mirror + APIs
- initial_state/unreviewed + additive migration 027 — no rebuild/re-stamp/ threading) ships first; Plan B (PK rebuild + threading + re-stamp) lands before M4 / before public /p/ URLs.

Deliverables (committed, branch m3-backend-registry-spine):

Spec: docs/superpowers/specs/2026-06-03-m3-backend-design.md (6f356d3, refined)
Plan A: docs/superpowers/plans/2026-06-03-m3-backend-plan-a.md (dd72f91) — 9 TDD tasks, each green-on-commit.

State: Plan A IMPLEMENTED via subagent-driven development (9 tasks, each implementer → spec review → code-quality review, fixes looped until approved).

Cut state (Plan A implementation)

Branch m3-backend-registry-spine, off dd72f91 (spec+plan commits). Full suite 434 passed. Version bumped 0.32.0 → 0.33.0. Final whole-implementation review (opus): Ready to integrate, no critical/important issues.

Task commits:

T1 entry review fields — 597f6bc
T2 migration 027 (additive) — 2d9022b
T3 cache review mirror — 8f21dc5
T4 registry.py module — 27a0a04 (+ review fixes f7bd466)
T5 hard-cut META_REPO + wire mirror — cecc6c0 (+ fixes 48fd6f9)
T6 runtime-config APIs — c386b05 (+ 404 fix 07e003e, + tests/guard e8ce3cd)
T7 initial_state honoring — fe47eef (+ resolver fixup 2fe2a71)
T8 mark-reviewed + catalog filter — 76207bb (+ fixes 69fd0cb, 8004b2a)
T9 release 0.33.0 — a2dc29a (+ changelog fixes f114af8)

What lands on the operator's plate

Integrate the branch (finishing-a-development-branch): PR or merge m3-backend-registry-spine → main. NOT yet pushed/merged as of this note.
Deploy upgrade (when shipping): create a registry repo, author projects.yaml (id: default, content_repo = old META_REPO), set REGISTRY_REPO, remove META_REPO, add registry webhook — per CHANGELOG 0.33.0 upgrade steps.

Plan B follow-ups (deferred by design, tracked for next slice before M4)

12-table PK rebuild (migration 028) + project_id in every ON CONFLICT target.
project_id writer-threading through every RFC/branch writer — concrete known instances surfaced in final review: the mark-reviewed and propose write sites currently hardcode the default content_repo (safe in Plan A's single project; wrong once project #2 exists).
default→slug re-stamp (rides the rebuild's ON UPDATE CASCADE).
two-project isolation tests; project archival from the registry.

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