session-history/engineering/0018/SESSION-0018.0-TRANSCRIPT-2026-06-10T21-50--2026-06-11T21-10.md

# Session 0018.0 — Transcript

> App: engineering
> Start: 2026-06-10T21-50 (PST) · End: 2026-06-11T21-10 (PST)
> Type: planning-and-executing
> Claude-Session: c11b0724-4bbf-455d-96cb-b261c0865ed2
> Anchor: design `specs/gitea-forge-backups.md` (engineering#30) — SLICE-3; eligibility ELIGIBLE (R2a)
> Status: **FINALIZED** — SLICE-3 complete (PR #54 merged 2026-06-11)

## 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.)
```

## Pre-state

- `main` clean; SLICE-2 (4-hourly `gitea-backup.timer` + script) merged by session
  0017 the same evening. Sessions 0009 and 0017 in flight (`--INPROGRESS`) at claim
  time → this session ran isolated in the operator-pre-created worktree
  `.claude/worktrees/gitea-backups-slice-2`, branching
  `worktree-gitea-backups-slice-3` off `origin/main`.
- Scratch bucket `gs://wiggleverse-gitea-backups-scratch` left from SLICE-2's T-1
  gate: no versioning, no lifecycle, 2 leftover test objects.
- Prod bucket `gs://wiggleverse-gitea-backups`: versioning on, committed lifecycle
  applied (30d delete + 7d noncurrent purge); live 4-hourly ~1.1 GB dumps landing.

## Plan

Plan doc: `docs/superpowers/plans/2026-06-10-gitea-backups-slice-3.md` (merged with
the slice; archived to `plans/` at finalize). Approach: prove T-4 (spec §6.8) on the
scratch bucket — mirror prod config (versioning + both prod rules verbatim) plus a
`daysSinceCustomTime: 30` test rule, since `age` cannot be back-dated; seed
over-age / in-window / versioned-pair fixtures; poll a deterministic verify script
until the asynchronous GCS lifecycle pass runs; record the proof; ship via PR. No
prod mutation (drift-check only).

## Arc (turn by turn)

1. **Init** — session gate → `wgl-planning-and-executing`; claimed 0018; baseline
   verified clean; R2/R3 gate: ELIGIBLE (R2a, graduated design).
2. **Tasks 1–4 (evening 06-10)** — scratch versioning enabled + T-4 lifecycle
   applied (`infra/gitea-backup/t4-scratch-lifecycle.json`); prod drift-checked
   clean; `infra/gitea-backup/t4-retention-check.sh` (seed/verify) written;
   fixtures seeded (overage customTime 2026-04-27; inwindow; versioned pair);
   verify PENDING path exercised (exit 1); branch pushed; checkpoint published.
   30-min monitor armed (48 h deadline).
3. **Operator detour (morning 06-11)** — cost question answered with real numbers
   (~1.1 GB/dump; hourly+7d ≈ $11/mo incl. noncurrent + soft-delete tails);
   operator decision: **keep 30 days / 4 hours** (no spec change).
4. **False VIOLATION (~13 h in)** — monitor reported "in-window object deleted".
   Systematic-debugging root cause: **expired gcloud token** ("Reauthentication
   failed; cannot prompt during non-interactive execution") made both listings
   fail; the script's `2>/dev/null … || true` read that as zero objects. **No data
   was lost.** Fix shipped (commit `07266be`): verify fails closed — listing
   failure is exit 3 CHECK-ERROR (distinct from gcloud's "matched no objects" =
   legitimately empty), never a violation. The broken auth itself was the failing
   test (old: exit 2 wrong → new: exit 3). Monitor re-armed auth-aware.
5. **Auth restored (evening 06-11)** — first login refreshed the wrong account;
   the gitea config needs `ben.stull@wiggleverse.org` specifically; second login
   pinned to it. **T-4 GREEN** on the next check: over-age purged from the live
   set (demoted to a noncurrent version per versioning semantics), in-window
   object + prior noncurrent version intact (INV-5).
6. **Ship** — infra doc build-state bullet (SLICE-3) + spec changelog v0.2.2
   (Version field also bumped from the stale v0.2.0); PR #54 → merged to `main`
   (`a0c93c5d`, remote branch deleted); issue #30 comment #1625; plan archived
   (`plans/2026-06-10-gitea-backups-slice-3.md` at `9c8926f`); memory updated
   (next: SLICE-4).

## Deferred decisions

- **T-4's over-age trigger is `daysSinceCustomTime: 30`, not prod's `age: 30`** —
  `age` cannot be back-dated; executing the literal prod rule means 30 days of
  wall clock. Same threshold, same lifecycle Delete engine; substitution recorded
  in the infra doc. Alternative: a scaled `age: 1` scratch policy (slower, needs
  mid-wait uploads). Confidence high, but it is a fidelity call.
- **The 7-day noncurrent purge is config-verified, not execution-verified** —
  executing it adds ≥ 7 days for the same Delete machinery already exercised.
  Versioning *protection* (prior versions survive) IS execution-verified.
- **Worktree left in place at finalize** — branch merged + tree clean (teardown
  gate satisfied), but the worktree (`.claude/worktrees/gitea-backups-slice-2`)
  was operator-pre-created, not session-created, with sessions 0009/0017 still
  unfinalized — so it was flagged rather than removed.

## Cut state / operator plate

- **Shipped & verified:** SLICE-3 complete on `main` (PR #54); T-4 green
  2026-06-11; prod untouched and drift-clean. Pipeline (§9) status: bootstrap
  infra, no UI/app deploy — the scratch bucket WAS the pre-prod gate per spec
  §7.3; nothing further to deploy.
- **Scratch bucket kept** for SLICE-4's drill; t4 fixtures self-clean via the
  applied lifecycle (≤ 37 days).
- **Operator gotcha:** gcloud reauth for `ben.stull@wiggleverse.org` (the `gitea`
  config's account) expires on an org policy cadence; long-running unattended
  gcloud work will hit it. CHECK-ERROR (exit 3) from `t4-retention-check.sh`
  means re-run `gcloud auth login ben.stull@wiggleverse.org`.
- Sessions 0009 and 0017 remain `--INPROGRESS` (not this session's to adopt —
  they were live-listed at claim time).

## Next-session prompt

```
/goal Build gitea-forge-backups SLICE-4 — restore runbook (RB-1/RB-2 → infra/backup-restore-gitea.md) + one proving drill onto a scratch Gitea, T-2 green, drill recorded, per specs/gitea-forge-backups.md §7.2 (engineering#30)
```