Conciseness

Dense, rule-focused body that assumes TypeScript competence and avoids explaining basics, but several bullets carry lengthy rationale clauses (e.g. the Go-to-Definition regressions) that could be trimmed, placing it just below the lean anchor 5.

Actionability

Concrete, directive rules with specific inline examples ("Use `type`, not `interface`", "`parseUrl`, `defineKv`", "`ReturnType<typeof createThing>`"); as an instruction-only skill the guidance is actionable with only minor gaps versus copy-paste-ready anchor 5.

Workflow Clarity

Not a multi-step process skill, but the application context is clear (apply these conventions when editing TS) and the Reference Map routes to deeper material; no validation checkpoints are needed since there are no destructive or batch operations, so it sits at anchor 4 rather than 5.

Progressive Disclosure

Clear overview in SKILL.md with a well-signaled Reference Map linking seven one-level-deep reference files (all verified to exist), each annotated with its scope; content is appropriately split and easy to navigate, matching anchor 5.

Specificity

Lists several specific convention areas ("derived types, type placement, acronym casing, imports, generics, factories, and runtime schema patterns") plus concrete triggering actions ("editing `.ts` files, defining exported types, reviewing type names, or organizing type tests"); minor coverage gaps versus the comprehensive anchor 5.

Completeness

Explicitly answers both what ("TypeScript project conventions: ...") and when ("Use when editing `.ts` files, defining exported types, reviewing type names, or organizing type tests") with concrete trigger phrases, matching the anchor 5 example.

Trigger Term Quality

Good natural keyword coverage including the `.ts` file extension, "exported types", "type names", "type tests", and "TypeScript"; a few synonyms (e.g. "TS") are missing, so it stops short of the comprehensive anchor 5.

Distinctiveness Conflict Risk

Clear TypeScript-conventions niche with distinct triggers, but "editing `.ts` files" is broad enough to overlap with general TS editing or related skills (arktype, typebox), so it is not the minimal-conflict anchor 5.