add engineering/0016/SESSION-0016.0-TRANSCRIPT-2026-06-10T20-34--2026-06-10T21-11.md + replace placeholder/variant SESSION-0016.0-TRANSCRIPT-2026-06-10T20-34--INPROGRESS.md

engineering/0016/SESSION-0016.0-TRANSCRIPT-2026-06-10T20-34--2026-06-10T21-11.md

@@ -0,0 +1,122 @@
+# Session 0016.0 — Transcript
+
+> App: engineering
+> Start: 2026-06-10T20-34 (PST)
+> End: 2026-06-10T21-11 (PST)
+> Type: planning-and-executing
+> Claude-Session: bd35ac2f-4cc2-43e5-95e1-69ed72d8f71b
+> Status: **FINALIZED**
+
+## Launch prompt
+
+```
+Do the gitea VM service-account scope maintenance window (stop → set-service-account --scopes=cloud-platform → start, per infra/deploy-gitea-on-gcp.md Backups box) — unblocks gitea-forge-backups SLICE-1 (engineering#30).
+```
+
+## Plan
+
+> Anchor: design specs/gitea-forge-backups.md (engineering#30, graduated; D-3 / §13 Q1: operator approved the maintenance window)
+
+Execute the gitea VM service-account scope maintenance window — the SLICE-1
+unblock (spec §7.2 SLICE-1, risk R-1). Procedure is canonical in
+`infra/deploy-gitea-on-gcp.md` "Backups" box:
+
+1. Checkpoint-publish this transcript BEFORE the window (session-history lives
+   on the VM being stopped).
+2. Pre-checks via `CLOUDSDK_ACTIVE_CONFIG_NAME=gitea` (§8.4): VM RUNNING,
+   record current SA (`1061347810527-compute@developer.gserviceaccount.com`)
+   + scopes (`devstorage.read_only`).
+3. `gcloud compute instances stop gitea --zone=us-central1-a`
+4. `gcloud compute instances set-service-account gitea --zone=us-central1-a --scopes=cloud-platform`
+5. `gcloud compute instances start gitea --zone=us-central1-a`
+6. Verify: scopes = cloud-platform, same SA email, forge healthy
+   (HTTPS git.wiggleverse.org + SSH :2222), on-VM ADC write-test to
+   `gs://wiggleverse-gitea-backups` (proves the unblock; spec D-3).
+7. Update the runbook's PENDING box (DOC-2) → branch → PR → merge.
+
+Session ran isolated in worktree `gitea-vm-scope-window` (live concurrent
+SESSION-0009 in flight).
+
+## Pre-state
+
+- engineering `main` at `721538d`, clean, == `origin/main`; no open PRs.
+- SLICE-1 prep done (session 0011, PR #33): bucket `gs://wiggleverse-gitea-backups`
+  (versioned, lifecycle), VM SA `objectCreator`, dedicated `gitea` gcloud config.
+- BLOCKER: VM scope `devstorage.read_only` → cannot upload via ADC. Tracked as
+  issue #34 (P0, task).
+- Concurrent live session: SESSION-0009 (started 09:40, own worktree
+  `engineering-session-0009`) → this session isolated per §5.4 / init Step 6b.
+
+## Turn-by-turn arc
+
+1. **Init.** Classified `/goal` prompt as planning-and-executing; claimed
+   SESSION-0016 (atomic push, advisory 0016 held); anchor eligibility ELIGIBLE
+   (R2a — graduated design `specs/gitea-forge-backups.md`); baseline clean;
+   entered native worktree `gitea-vm-scope-window` (branch
+   `worktree-gitea-vm-scope-window`).
+2. **Plan seeded + pre-window checkpoint** published to session-history
+   (deliberately before stopping the VM that hosts it).
+3. **Auth detour (wrong turn, recovered).** The `gitea` gcloud config's CLI
+   token had expired; interactive `gcloud auth login` impossible
+   non-interactively. Tried alternate account — also expired. Asked operator to
+   reauth; Stop-hook pushed for progress, so: started a background poller for
+   CLI auth AND discovered ADC was still valid → ran the read-only pre-check
+   via the Compute REST API (project explicit in URL; §8.4 satisfied, no config
+   pointer touched). Pre-state recorded: RUNNING, default-SA, legacy scopes
+   incl. `devstorage.read_only`. Operator's login then landed (poller exit 0).
+4. **The window** (documented CLI commands, `CLOUDSDK_ACTIVE_CONFIG_NAME=gitea`):
+   `stop` (≈2 min) → `set-service-account --scopes=cloud-platform` → `start`
+   (operator executed the start command directly, interrupting the agent's
+   identical call). ~3 min forge downtime total.
+5. **Verification.** Post-state RUNNING, same SA, scopes = `cloud-platform`
+   only. Forge: HTTPS 200 on https://git.wiggleverse.org/ within ~20 s; SSH
+   :2222 `git ls-remote` OK. Metadata server on-VM confirms `cloud-platform`.
+6. **Write test (SLICE-1 proof).** `gsutil cp` from the VM **403s** — its
+   destination-existence check needs `storage.objects.list`, which the
+   create-only `objectCreator` IAM denies (misleading error; upload itself is
+   allowed). Pure-create JSON-API `objects.insert` from the VM returned
+   **HTTP 200** (`maintenance/scope-fix-write-test.txt`). Verified from laptop,
+   then deleted with operator credentials (VM correctly cannot delete).
+7. **DOC-2.** Runbook `infra/deploy-gitea-on-gcp.md` updated: PENDING box →
+   build-state record (scope raised 2026-06-10, session 0016); §1 OAuth warning
+   and cert-rotation note brought current (Secret Manager self-fetch / Path A
+   now possible); SLICE-2 note on the gsutil-vs-create-only-IAM gotcha.
+   Commit `13807f2` → PR #41 → merged to `main` (`69051a2`).
+8. **Closeout.** Issue #34 commented with the outcome and closed. Memory
+   (`project_gitea_forge_backups.md` + MEMORY.md index) updated: SLICE-1
+   COMPLETE, next = SLICE-2. Operator asked whether SLICE-2 was also done —
+   answered plainly: no, only unblocked.
+9. **Finalize.** Worktree torn down (branch merged; commit confirmed on
+   `origin/main` before discard), canonical `main` fast-forwarded to `69051a2`,
+   merged remote branch deleted, transcript finalized and published.
+
+## Cut state
+
+- **SLICE-1 of engineering#30: COMPLETE.** VM scope `cloud-platform`; bucket
+  writable from the VM via ADC (proven); forge healthy; issue #34 closed;
+  runbook current (PR #41 merged).
+- **No automated backups exist yet** — SLICE-2 (8-hour `gitea dump` + upload
+  timer) is unblocked but unbuilt. The forge still has zero scheduled backups.
+- No plan artifact to archive (infra gesture; procedure was already canonical
+  in the runbook — the `## Plan` block above is the session plan record).
+- Pipeline (§9) status: hand-provisioned bootstrap infra + docs PR — no
+  deployable app stage applies; the scratch-Gitea restore drill (SLICE-4) is
+  the designated PPE stand-in for this capability.
+
+## Deferred decisions
+
+- Deleted the write-test object from the bucket with operator laptop
+  credentials rather than leaving it for the 30-day lifecycle — judged
+  trivially safe (artifact created seconds earlier by this session), but it
+  is technically an irreversible delete.
+
+## Operator plate
+
+- Nothing pending from this session. (SESSION-0009 remains in flight,
+  unrelated — its own worktree and transcript.)
+
+## Next-session prompt
+
+```
+/goal Build gitea-forge-backups SLICE-2 — scheduled gitea dump every 8h on the VM uploading to gs://wiggleverse-gitea-backups (use a pure-create upload path, not gsutil cp), per specs/gitea-forge-backups.md §7.2 (engineering#30)
+```

engineering/0016/SESSION-0016.0-TRANSCRIPT-2026-06-10T20-34--INPROGRESS.md

@@ -1,82 +0,0 @@
-# Session 0016.0 — Transcript
-
-> App: engineering
-> Start: 2026-06-10T20-34 (PST)
-> Type: planning-and-executing
-> Claude-Session: bd35ac2f-4cc2-43e5-95e1-69ed72d8f71b
-> Status: **PLACEHOLDER — claimed at session start; finalized at session end.**
->
-> This file reserves session ID 0016 for engineering. The driver replaces this
-> body with the full transcript and renames the file to its final
-> SESSION-0016.0-TRANSCRIPT-2026-06-10T20-34--<end>.md form at session end.
-
-## Launch prompt
-
-```
-Do the gitea VM service-account scope maintenance window (stop → set-service-account --scopes=cloud-platform → start, per infra/deploy-gitea-on-gcp.md Backups box) — unblocks gitea-forge-backups SLICE-1 (engineering#30).
-
-```
-
-## Plan
-
-> Anchor: design specs/gitea-forge-backups.md (engineering#30, graduated; D-3 / §13 Q1: operator approved the maintenance window)
-
-Execute the gitea VM service-account scope maintenance window — the SLICE-1
-unblock (spec §7.2 SLICE-1, risk R-1). Procedure is canonical in
-`infra/deploy-gitea-on-gcp.md` "Backups" box:
-
-1. Checkpoint-publish this transcript BEFORE the window (session-history lives
-   on the VM being stopped).
-2. Pre-checks via `CLOUDSDK_ACTIVE_CONFIG_NAME=gitea` (§8.4): VM RUNNING,
-   record current SA (`1061347810527-compute@developer.gserviceaccount.com`)
-   + scopes (`devstorage.read_only`).
-3. `gcloud compute instances stop gitea --zone=us-central1-a`
-4. `gcloud compute instances set-service-account gitea --zone=us-central1-a --scopes=cloud-platform`
-5. `gcloud compute instances start gitea --zone=us-central1-a`
-6. Verify: scopes = cloud-platform, same SA email, forge healthy
-   (HTTPS git.wiggleverse.org + SSH :2222), on-VM ADC write-test to
-   `gs://wiggleverse-gitea-backups` (proves the unblock; spec D-3).
-7. Update the runbook's PENDING box (DOC-2) → branch → PR → merge.
-
-Session runs isolated in worktree `gitea-vm-scope-window` (live concurrent
-SESSION-0009 in flight).
-
-## Execution record (checkpoint, ~20:50 PST)
-
-The maintenance window ran and verified clean (spec §7.2 SLICE-1, D-3, §13 Q1):
-
-- **Pre-state** (Compute API): VM RUNNING, SA
-  `1061347810527-compute@developer.gserviceaccount.com`, legacy default scopes
-  incl. `devstorage.read_only`.
-- **Auth detour:** the `gitea` gcloud config's CLI token had expired
-  (interactive reauth required). ADC was still valid, so the read-only
-  pre-check ran via the Compute REST API (project explicit in URL — §8.4
-  satisfied, no config pointer touched). Operator then ran
-  `gcloud auth login`; the window itself used the documented CLI commands.
-- **Window:** `stop` → `set-service-account --scopes=cloud-platform` →
-  `start` (operator executed the start command directly). ~3 min downtime.
-- **Post-state:** RUNNING, same SA, scopes = `cloud-platform` only.
-- **Forge health:** HTTPS 200 on https://git.wiggleverse.org/ within ~20 s of
-  start; SSH :2222 `git ls-remote` OK.
-- **Write test (the SLICE-1 proof):** on-VM ADC upload to
-  `gs://wiggleverse-gitea-backups/maintenance/scope-fix-write-test.txt` —
-  `gsutil cp` 403s (its existence check needs `objects.list`, which
-  create-only IAM denies — recorded in the runbook as a SLICE-2 note); pure
-  JSON-API `objects.insert` returned HTTP 200. Test object verified then
-  deleted from the laptop (operator creds; VM correctly cannot delete).
-- **DOC-2:** runbook `infra/deploy-gitea-on-gcp.md` updated (PENDING box →
-  build-state record; §1 + cert-rotation notes brought current) — PR #41,
-  merged to main.
-
-SLICE-1 is complete; SLICE-2 (scheduled dump + upload timer) is unblocked.
-
-## Deferred decisions
-
-- Deleted the write-test object from the bucket with operator laptop
-  credentials rather than leaving it for the 30-day lifecycle — judged
-  trivially safe (artifact created seconds earlier by this session), but it
-  is technically an irreversible delete.
-
-_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._