Content
67%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, well-organized reference with executable examples throughout and useful error-recovery guidance. Its two real weaknesses are token waste restating Jest-standard matchers Claude already knows, and broken progressive disclosure: both referenced reference files are missing while their content is inlined.
Suggestions
Actually create references/matchers.md and references/cli-options.md so the "When to Load References" pointers resolve — currently both paths are dangling and following them fails.
Move the full Common Matchers list and the CLI Options/Reporters flag bulk into those reference files, keeping only a handful of representative examples in SKILL.md — this also fixes the conciseness penalty for restating Jest-standard matchers.
Note in the matchers section that matchers are Jest-compatible, so only bun-specific differences (e.g., toStartWith/toEndWith availability) need listing.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The ~45-line Common Matchers section restates standard Jest matchers (toBe, toEqual, toBeNull, toHaveLength, ...) that Claude already knows — doubly redundant since the intro itself says the runner is "Jest-compatible". The rest is dense, lean code, so it is above anchor 2 but clearly could be tightened to match anchor 4-5. | 3 / 5 |
Actionability | Every section is complete, executable, copy-paste-ready material: working bun test commands with flags, full test.each array and object forms, all modifiers, CLI options, reporters, and a concrete error/cause/fix table covering the common cases — an exact match for anchor 5. | 5 / 5 |
Workflow Clarity | Logical progression (run tests, write tests, file patterns, modifiers, parameterization, concurrency, CLI, reporters, errors) with a Common Errors table providing recovery guidance. It is a reference rather than a sequenced process, and lacks explicit validation checkpoints, so it fits anchor 4 rather than 5. | 4 / 5 |
Progressive Disclosure | The "When to Load References" section is clearly signaled with load conditions, but the referenced files (references/matchers.md, references/cli-options.md) do not exist — following the pointers fails entirely. Meanwhile the full matcher and CLI reference bulk that belongs in exactly those files is inlined in the body, matching anchor 2's "content that clearly belongs in separate files is inlined". | 2 / 5 |
Total | 14 / 20 Passed |