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 excellent, highly actionable skill body: the TDD cycle is sequenced with mandatory verification checkpoints, feedback loops, complete executable examples, and proper progressive disclosure into a well-signaled reference file. Its one weakness is redundancy — the core 'no code without a failing test / delete and start over' rule is repeated across four overlapping sections (Iron Law, Common Rationalizations, Red Flags, Final Rule) that could be consolidated.
Suggestions
Consolidate the redundant enforcement sections: 'The Iron Law', 'Red Flags - STOP and Start Over', and 'Final Rule' all restate the same rule, and the Red Flags bullets duplicate ~8 rows of the 'Common Rationalizations' table nearly verbatim — merge them into a single section to cut roughly 40 lines of repeated messaging.
Trim the wordiest 'Common Rationalizations' rows (e.g. "I'll test after" and "Tests after achieve same goals") to one-sentence rebuttals; the current multi-sentence explanations re-argue points the table format makes on its own.
The graphviz dot block adds a second visual restatement of the same cycle the headings already sequence — consider dropping it in favor of the section structure alone.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The core Red-Green-Refactor guidance is lean and assumes Claude's competence (no basic-concept explanations), but the "no production code without a failing test / delete and start over" rule is restated across "The Iron Law", "Common Rationalizations", "Red Flags" (which duplicates ~8 rationalization rows nearly verbatim), and "Final Rule". Mostly efficient, but consolidating these overlapping enforcement sections would tighten it considerably — not a 2 because the repetition targets a specific failure mode rather than generic padding, not a 4 because several sections are redundant. | 3 / 5 |
Actionability | Fully executable throughout: copy-paste-ready commands ("npm test path/to/test.test.ts"), complete TypeScript test and implementation examples for retryOperation with Good/Bad contrasts, and an end-to-end bug-fix walkthrough. Specific examples cover the common cases, matching the top anchor. | 5 / 5 |
Workflow Clarity | The Red-Green-Refactor cycle is clearly sequenced with mandatory verification checkpoints at each phase, explicit feedback loops for error recovery ("Test errors? Fix error, re-run until it fails correctly"; "Other tests fail? Fix now"), and a final verification checklist — matching the top anchor including its checklist criterion. | 5 / 5 |
Progressive Disclosure | SKILL.md serves as a well-sectioned overview while the deep-dive material (test-quality rules) is split into a single real, one-level-deep reference (references/writing-good-tests.md, confirmed present in the bundle with no nested references), clearly signaled by a markdown link plus a bullet summary of its contents. Content is appropriately split and easy to navigate. | 5 / 5 |
Total | 18 / 20 Passed |