$npx -y skills add butterbase-ai/butterbase-skills --skill journey-storageUse as the storage build stage of the Butterbase journey. Implements the Storage section of 02-plan.md by delegating to the storage skill. Calls manage_storage (update_config) for bucket setup; uploads are exercised at frontend integration time, not here. Skipped if the plan has
| 1 | # Journey: Storage |
| 2 | |
| 3 | Stage 3d of the guided journey. Configure storage buckets/ACLs from the plan. |
| 4 | |
| 5 | ## When to use |
| 6 | |
| 7 | - Dispatched by `journey` when `current_stage: storage`. |
| 8 | - Directly via `/butterbase-skills:journey-storage`. |
| 9 | - Skipped (annotated `(n/a)`) if the plan has no Storage section. |
| 10 | |
| 11 | ## Preflight |
| 12 | |
| 13 | If `docs/butterbase/03-preflight.md` is missing, older than 24 hours, or `00-state.md` has `app_id: null`, invoke `butterbase-skills:journey-preflight` first. Wait for it to return successfully before proceeding. |
| 14 | |
| 15 | ## Inputs |
| 16 | |
| 17 | - `docs/butterbase/02-plan.md` — the Storage section. |
| 18 | - `docs/butterbase/00-state.md` — for `app_id`. |
| 19 | |
| 20 | ## Procedure |
| 21 | |
| 22 | 0. **Refresh docs.** Call `butterbase_docs` with `topic: "storage"`. For presigned URL patterns, also WebFetch `https://docs.butterbase.ai/storage`. Skip if cache is fresh. |
| 23 | |
| 24 | 1. Read the Storage section of `02-plan.md`. Print it back: `"About to configure storage: <buckets>. Proceed?"`. Wait for `yes`. |
| 25 | 2. Invoke `butterbase-skills:storage` via the Skill tool, passing the Storage plan and `app_id`. The wrapped skill calls `manage_storage action: update_config` per bucket (visibility, max object size). |
| 26 | 3. Smoke: request an upload URL via `manage_storage action: upload_url` and a matching `download_url` to confirm presigned URL minting works. |
| 27 | 4. Append one line to `docs/butterbase/04-build-log.md`: |
| 28 | `<ISO timestamp> storage manage_storage ok` |
| 29 | 5. Tick `- [x] storage` in `00-state.md`, set `current_stage:` to the next unchecked stage. |
| 30 | 6. Return to `journey` orchestrator (or ask `"Continue to the next stage? (yes/no)"`). |
| 31 | |
| 32 | ## Outputs |
| 33 | |
| 34 | - Configured storage buckets. |
| 35 | - One line in `04-build-log.md`. |
| 36 | |
| 37 | ## Anti-patterns |
| 38 | |
| 39 | - ❌ Persisting `s3_key` in app data — always persist `object_id`. The wrapped skill handles this; do not override it. |