Content
65%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.
A highly actionable, error-free quick reference whose examples are uniformly executable — the strongest dimension. It is weakened by inlining a large API catalog (much of it standard supabase-js knowledge Claude already has) in SKILL.md instead of moving bulk detail into the bundle's reference file, and by documenting destructive database operations without validation checkpoints or error-recovery loops.
Suggestions
Move the bulk of the REST curl catalog and the standard JavaScript client quick reference into references/ files (e.g., references/rest-api.md), keeping SKILL.md as a lean overview with clearly signaled links, to improve both conciseness and progressive disclosure.
Trim the 'JavaScript Client Quick Reference' to only non-obvious patterns (e.g., QueryData typing, realtime channels) and drop API surface Claude already knows, such as basic signUp/signInWithPassword calls.
Add explicit validation steps to destructive operations — e.g., verify matching rows with a count/select before delete, check 'error' after every mutation, and show a fix-and-retry pattern keyed to the error-codes table — so workflow clarity can exceed the database-operations cap of 3.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is nearly prose-free and dense with code, but the 'JavaScript Client Quick Reference' section and the multiple client-init variants largely re-document the standard supabase-js API Claude already knows, and ~350 lines of catalog could be tightened — more than the 'minor instances' of the 4 anchor, though there is no padded conceptual explanation that would justify a 2. | 3 / 5 |
Actionability | Every section is copy-paste executable: install command, client initialization variants, complete curl examples for select/insert/update/upsert/delete with required headers, a filter-operator table with syntax examples, an error-handling pattern, and a TypeScript type-generation command — fully covering the common cases per the 5 anchor. | 5 / 5 |
Workflow Clarity | Sections imply a logical order (install → init → operate → handle errors), but the documented destructive database operations (delete, update, upsert, batch insert) have no integrated validation or verification steps — the delete example destructures 'error' without handling it, and the standalone Error Handling snippet forms no validate→fix→retry loop. Per the rubric's cap for database operations without feedback loops, workflow clarity is capped at 3. | 3 / 5 |
Progressive Disclosure | The single reference file (references/client-patterns.md) exists and is linked one level deep, but ~300 lines of full API reference are inlined in SKILL.md rather than split across reference files, and the lone reference link sits at the very bottom with a one-line annotation — matching the 3 anchor ('content that should be separate is inline') rather than the 4 anchor where most content is appropriately placed. | 3 / 5 |
Total | 14 / 20 Passed |