Content
56%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 body is dense with genuinely non-obvious, high-value operational knowledge (error-code triage, domain whitelisting recipes, PG vs NoSQL API differences) delivered as executable code with strong validation loops. Its weaknesses are structural: the same prerequisite is repeated five times, advanced PG material is inlined instead of split into a reference file, and the workflow must be assembled from scattered, overlapping sections.
Suggestions
State the bucket-existence prerequisite once in the "Bucket existence prerequisite" section and reference it from the checklist, gotchas, and Upload rules instead of restating it — this alone would remove roughly a fifth of the body.
Move the PG-mode deep material (RLS SQL, Supabase parity table, return-shape table, URL-resolution strategies) into a references/ file (e.g. references/storage-pg.md) and keep only the routing decision (PG → app.storage.from(bucket), NoSQL → app.uploadFile) plus a one-line pointer in SKILL.md.
Consolidate the scattered pre-upload guidance (Minimal checklist, Local dev recipe, pre-upload steps, security-domain reminder) into one ordered workflow, and add the missing executable examples: a deleteFile per-file result check and the DO $$ / IF NOT EXISTS re-run-safe RLS block.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The bucket-existence prerequisite is restated in at least five places ("Common mistakes", "Minimal checklist", the entire "Bucket existence prerequisite" section, the "PG mode upload" section, and "Upload rules"), and the "Just like Supabase" parity framing is repeated three times — noticeably verbose, padded duplication rather than occasional slack. The material itself is non-obvious domain knowledge (error codes, whitelist formats), so this is verbosity from repetition rather than from explaining concepts Claude already knows, which keeps it at 2 rather than 1. | 2 / 5 |
Actionability | Concrete, executable code throughout — init, uploadFile, getTempFileURL, deleteFile, downloadFile, progress, error handling, RLS SQL, and MCP tool JSON — with exact PG vs NoSQL call shapes ("app.storage.from('covers').upload('file', file)"). Minor gaps: no complete end-to-end PG-mode example, and "Always inspect per-file results" for deletes is asserted without a code example. | 4 / 5 |
Workflow Clarity | Strong explicit validation and feedback loops ("poll queryEnv(action="domains") rather than blind-sleeping", "stop editing frontend code and fix the environment-side storage resource first… then retry", inspecting the failed upload-info POST's `code` field) plus a pre-flight checklist and per-file delete inspection. Held at 4 because the workflow is fragmented across overlapping sections rather than one coherent sequence, and the RLS re-run guard (`IF NOT EXISTS` in a `DO $$` block) is described but missing from the SQL actually shown. | 4 / 5 |
Progressive Disclosure | No bundle files exist (references/, scripts/, assets/ are all absent), and PG-mode deep material — the RLS SQL, Supabase parity table, return-shape table, and URL-resolution strategies — is inlined in SKILL.md where it belongs one level deep in a reference file; the body even points to postgresql-development-cloudbase/references/storage-pg.md for templates, showing awareness of the pattern. Section headers and clearly signaled sibling references ("Then also read") provide real structure, so this is not a 2. | 3 / 5 |
Total | 13 / 20 Passed |