Content
77%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
The content is highly actionable, with executable code for both storage modes and unusually strong validation/feedback loops in its workflows. Its weaknesses are token efficiency — the bucket prerequisite and security-domain guidance are repeated across many sections — and the absence of any reference files, leaving PG-mode deep-dive material inlined in the overview.
Suggestions
Consolidate the bucket-existence prerequisite, currently stated in ~5 places (common mistakes, minimal checklist, the dedicated section, the PG-mode warning, and upload rules), into one canonical section referenced from the others.
Move the PG/pgstore deep-dive (return-shape tables, RLS SQL templates, URL resolution strategies, Supabase parity table) into a references/ file and link to it from SKILL.md.
Trim generic best practices Claude already knows (validate file size/type before upload, use clear folder structure, clean up obsolete files) to reduce token load.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The core API sections (Upload, Temporary URLs, Delete, Download, init) are efficient, but the bucket-existence prerequisite is repeated across roughly five sections (common mistakes, minimal checklist, the dedicated prerequisite section, the PG-mode warning, and upload rules), and the local-dev recipe overlaps the security-domain reminder — matching anchor 3's 'mostly efficient but could be tightened'. It avoids a 2 because the repeated material is non-obvious gotcha content rather than explanations of concepts Claude already knows. | 3 / 5 |
Actionability | Fully executable, copy-paste-ready code for every operation in both legacy and PG modes ('app.uploadFile({...})', 'app.storage.from(\'covers\').upload(...)'), executable RLS SQL, concrete MCP tool invocations ('queryEnv', 'action="domains"'), and specific DevTools debugging steps (inspect the 'POST .../v1/storages/get-objects-upload-info' response 'code' field). Common cases for both environment modes are covered, matching anchor 5. | 5 / 5 |
Workflow Clarity | The local dev recipe is a numbered 6-step sequence with explicit validation (poll 'queryEnv(action="domains")' rather than blind-sleeping, re-check the exact host:port), and the pre-upload steps include error-code-driven recovery loops ('If app.uploadFile() returns STORAGE_NOT_EXIST, stop editing frontend code and fix the environment-side storage resource first'). Destructive delete operations include validation ('Always inspect per-file results before assuming deletion succeeded'), matching anchor 5's explicit checkpoints and feedback loops. | 5 / 5 |
Progressive Disclosure | The body is well-sectioned with clear headers, but at ~320 lines it inlines deep PG/pgstore material (return-shape comparison tables, RLS SQL templates, Supabase parity table, URL resolution strategies) that clearly belongs in separate reference files, and no bundle files exist to offload it — matching anchor 3's 'content that should be separate is inline'. It is not 2 because structure and sibling-skill references are clearly signaled, and not 4 because the majority of the specialized content is inlined rather than appropriately split. | 3 / 5 |
Total | 16 / 20 Passed |