Content
80%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 well-structured, actionable skill body: executable BAD/GOOD examples for every anti-pattern and clean one-level-deep reference navigation. Its weak point is workflow clarity — the practices are listed but not sequenced into a process with validation checkpoints, and the trigger conditions are duplicated across two sections.
Suggestions
Sequence the four practices into an explicit ordered workflow (e.g., 1. design the types, 2. model mutually exclusive states as a union, 3. validate at the boundary, 4. organize modules) with `npx tsc --noEmit` as an explicit validation checkpoint after design and after each change.
Merge the overlapping "When to Apply" and "Use When" sections into one, keeping the concrete user phrasings and dropping the restated bullet list.
Tighten the Mindset paragraph to the actionable rule (design types first; optional-field interfaces are unmodeled unions; validate once at the boundary) without the explanatory justification clauses.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is efficient and opinionated rather than tutorial-style, but "When to Apply" and "Use When" restate the same triggers in two forms, and the Mindset paragraph ("a type is a specification the compiler checks on every subsequent change...") is longer than needed. Not 5: visible redundancy that could be trimmed. | 4 / 5 |
Actionability | Each anti-pattern comes with complete, executable BAD/GOOD TypeScript pairs (the FetchState discriminated union, Zod's UserSchema.parse at the fetch boundary, the encapsulated db.ts module), plus runnable commands (npx tsc --noEmit). The examples are copy-paste ready and cover the common cases for each practice. | 5 / 5 |
Workflow Clarity | The four practices are presented as parallel sections rather than a sequenced workflow — the implied order (design types → model unions → validate at boundary → organize modules) is never made explicit, and `npx tsc --noEmit` appears as a bare quick command rather than a validation checkpoint inside any workflow. Not 4: sequence and checkpoints remain implicit. | 3 / 5 |
Progressive Disclosure | The body is a clear overview with a well-signaled References table pointing to four one-level-deep files (type-first.md, illegal-states.md, runtime-validation.md, module-patterns.md), all verified to exist and match their described coverage, plus two clearly labeled external links. | 5 / 5 |
Total | 17 / 20 Passed |