Content
85%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.
An unusually actionable, well-sequenced process skill: every step has runnable commands, validation checkpoints, and a worked example ending in an evidence block. Its weaknesses are token efficiency (an 8-framework command table Claude largely knows) and a monolithic structure that inlines reference material instead of splitting it into bundle files.
Suggestions
Move the Step 1 single-test command table to references/single-test-commands.md and keep only 2-3 common examples inline, since the body already defers framework coverage to the per-language unit-test skills.
Trim the Overview's generic TDD explanation to the Canon TDD test-list rule and the evidence principle, dropping background Claude already knows about what TDD is.
Move the full worked example to references/worked-example.md and reference it from Step 7, keeping only the evidence-block template inline in SKILL.md.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Mostly lean, high-value content (Canon TDD rules, the red-triage table, anti-patterns with reasons), but the 8-framework single-test command table and parts of the Overview restate commands and concepts Claude already knows. Above anchor 3 because the over-explanation is confined to one table and a few sentences, fitting "minor instances that could be trimmed". | 4 / 5 |
Actionability | Fully executable throughout: copy-paste commands like `pytest tests/test_mod.py::test_func`, a concrete test-list example, a triage table giving the next move for each failure mode, a worked example with real outputs, and a final evidence-block template. Specific examples cover the common cases. | 5 / 5 |
Workflow Clarity | Seven clearly sequenced steps with explicit validation checkpoints (baseline suite run, right-reason red check, whole-suite verification in Steps 4 and 5, refactor-only-on-green) and feedback loops for error recovery ("Fix the test until it runs and fails on its assertion"), plus an anti-patterns checklist. Matches the top anchor. | 5 / 5 |
Progressive Disclosure | Well-sectioned and easy to navigate, but monolithic at ~260 lines with no bundle files: reference-grade material is inlined, notably the 8-stack single-test command table that the body itself says the per-language unit-test skills cover. The under-50-lines exception does not apply, so this sits at "content that should be separate is inline" rather than anchor 4. | 3 / 5 |
Total | 17 / 20 Passed |