session-history/engineering/0018/SESSION-0018.0-TRANSCRIPT-2026-06-10T21-50--INPROGRESS.md

Session 0018.0 — Transcript

App: engineering Start: 2026-06-10T21-50 (PST) Type: planning-and-executing Claude-Session: c11b0724-4bbf-455d-96cb-b261c0865ed2 Status: PLACEHOLDER — claimed at session start; finalized at session end.

This file reserves session ID 0018 for engineering. The driver replaces this body with the full transcript and renames the file to its final SESSION-0018.0-TRANSCRIPT-2026-06-10T21-50--.md form at session end.

Launch prompt

/goal slice-3
(Resume gitea-forge-backups work — engineering#30, specs/gitea-forge-backups.md. SLICE-1 and SLICE-2 complete; this session plans and executes SLICE-3.)

Plan

Anchor: design specs/gitea-forge-backups.md (engineering#30) — SLICE-3 (Retention / rotation proven → guards BO-1 durability). Eligibility: ELIGIBLE (R2a).

SLICE-3 proves T-4 (retention) on the scratch bucket gs://wiggleverse-gitea-backups-scratch (kept from SLICE-2): an over-age object is purged by the lifecycle policy, in-window objects and prior (noncurrent) versions survive (INV-5). Approach: mirror the prod bucket's config on scratch (versioning + the committed lifecycle JSON) plus a test rule keyed on daysSinceCustomTime (the controllable analogue of age, which cannot be back-dated); seed over-age / in-window / versioned-pair objects; wait for the GCS lifecycle pass (≤ 24–48 h) with a deterministic verify script; then update the infra doc + spec changelog and ship via PR. No prod mutation — prod's lifecycle/versioning were applied in SLICE-1 and are drift-checked read-only.

Execution log (checkpoint 2026-06-10T22:00 PST)

• Branch worktree-gitea-backups-slice-3 off origin/main (in the slice-2 worktree, adopted — two concurrent sessions in flight: 0009, 0017).
• Plan written: docs/superpowers/plans/2026-06-10-gitea-backups-slice-3.md.
• Tasks 1–4 done: scratch bucket versioning enabled + T-4 lifecycle applied (committed infra/gitea-backup/t4-scratch-lifecycle.json); prod bucket drift-checked clean (lifecycle == committed JSON, versioning on); infra/gitea-backup/t4-retention-check.sh (seed/verify) committed; fixtures seeded (overage customTime 2026-04-27; inwindow; versioned pair) and verify exercised its PENDING path (exit 1). Branch pushed.
• Now waiting on the GCS lifecycle pass (≤ ~48 h; expected ≤ ~24 h), polling hourly via verify.

Deferred decisions

Autonomous-mode low-confidence calls the driver made and would have liked operator input on. Appended as the session runs; surfaced at finalize. Empty if none.

• T-4 over-age trigger uses daysSinceCustomTime: 30, not prod's age: 30 — age cannot be back-dated, so executing the real rule means 30 days of wall clock. Same threshold, same lifecycle Delete engine; substitution documented in the infra doc. Confidence: high, but it is a fidelity call the operator may want to revisit.
• The 7-day noncurrent purge is config-verified, not execution-verified — executing it adds ≥ 7 days for the same Delete machinery already exercised by the over-age purge. Versioning protection (prior version survives) is execution-verified.