Conciseness

The body is lean and efficient — terse Rules, a four-step workflow, a concrete output path, and a completion spec, with no re-teaching of concepts Claude already knows. Every token earns its place, matching the score-5 anchor; there is nothing meaningful to trim for a score of 4.

Actionability

Gives concrete, executable guidance for an instruction-only skill: the exact save path ("thoughts/shared/research/YYYY-MM-DD-topic.md"), a report structure, "2-4 key findings", and a named next step ("fic-create-plan"). Not 5 because of minor gaps, e.g. no fallback is specified when the repository lacks thoughts/.

Workflow Clarity

Four clearly sequenced steps (read mentioned files, search, summarize per component with a defined template, record open questions) with a well-defined output stage. Not 5 because there is no explicit verification checkpoint (e.g. confirming findings include file references); the read-only nature means no destructive-operation validation cap applies.

Progressive Disclosure

The skill is under 50 lines, needs no external references, and is organized into clean Rules/Workflow/Output/Completion sections; no bundle files exist and none are referenced. This meets the simple-skill exception allowing a score of 5 with just well-organized sections.

Specificity

Lists several concrete actions ("Research and document the current codebase state", "investigate existing behavior, architecture, or implementation details", "capture findings") with a clearly named domain, matching the 'several specific actions; minor gaps' anchor. Not 5 because the verbs partially overlap (research/investigate) and no deliverables are enumerated; not 3 because it goes beyond 1-2 actions.

Completeness

Explicitly answers both questions: the "what" ("Research and document the current codebase state without proposing changes") and the "when" with concrete trigger phrases ("Use when the user asks to investigate existing behavior, architecture, or implementation details and capture findings"). This matches the score-5 anchor directly.

Trigger Term Quality

"investigate", "existing behavior", "architecture", and "implementation details" are phrases users would naturally say when they need this skill, giving good keyword coverage. Not 5 because common synonyms such as "explore the codebase", "understand how X works", or "audit" are missing.

Distinctiveness Conflict Risk

The "without proposing changes" qualifier carves a distinct document-only niche, but broad terms like "investigate" and "architecture" overlap with general code-exploration or review skills. Mostly distinct with minor overlap risk, matching the score-4 anchor rather than 5's 'minimal conflict risk'.