Conciseness

The body is dense with actionable process steps and avoids explaining concepts Claude already knows, but has minor redundancy — the Role ("You are a specialized skill for analyzing the implementation gap between requirements and existing codebase to inform implementation strategy") restates the Core Mission ("Analyze the gap between requirements and existing codebase to inform implementation strategy"), which itself restates the frontmatter description. This fits 'Efficient; minor instances of over-explanation that could be trimmed' rather than a 5 where every token earns its place.

Actionability

Concrete, executable guidance dominates: exact paths to read ("{{KIRO_DIR}}/specs/{feature}/spec.json", "{{KIRO_DIR}}/specs/{feature}/requirements.md"), an exact write target ("save the gap analysis to {{KIRO_DIR}}/specs/{feature}/research.md"), an exact error message ("Run `/kiro-spec-requirements {feature}` first to generate requirements"), and next commands ("/kiro-spec-design {feature}"). It is not a 5 because the actual analysis methodology is wholly delegated to gap-analysis.md ("Follow gap-analysis.md framework for thorough investigation") and that file is not present in the provided bundle, leaving the core 'how' unverifiable — 'minor gaps' rather than fully self-contained coverage.

Workflow Clarity

A clear five-step sequence with explicit checkpoints and feedback loops: parallel research areas are identified, the write is verified ("Verify the file was written by reading it back"), and five error scenarios with fallback behavior are specified. It stops short of a 5 because Step 1 is muddled by the confusing line "Select skills for the current task even when steering/spec context is already available:" which mixes skill-selection policy into context gathering, and validation is only on the final write, not on analysis completeness.

Progressive Disclosure

The SKILL.md is an orchestration overview delegating the analysis framework to a single, clearly signaled, one-level-deep reference ("Read `rules/gap-analysis.md` from this skill's directory for comprehensive analysis framework"), with well-organized sections. It is not a 5 because that referenced rules file is not present in the provided bundle (no rules/, references/, scripts/, or assets/ directories exist), so the structure cannot be fully verified and the split cannot be confirmed as appropriate.

Specificity

The description names the domain and a single concrete action — "Analyze implementation gap between requirements and existing codebase" — but does not enumerate what the analysis covers (missing capabilities, approach evaluation, research needs), matching the anchor 'Names domain and 1-2 concrete actions, but not comprehensive'. It is not a 4 because no 'several specific actions' are listed, and not a 2 because the action named is concrete rather than generic.

Completeness

Both parts are present: what ("Analyze implementation gap between requirements and existing codebase") and when ("Use when planning integration with existing systems"). It falls short of a 5 because the 'when' clause covers only integration planning and omits other natural triggers for the same skill (e.g., brownfield work, gap analysis requests), fitting the anchor "'when' could be more explicit or specific".

Trigger Term Quality

Triggers like "planning integration with existing systems", "requirements", and "existing codebase" are phrases a user would plausibly say. It is not a 5 because common variations such as 'gap analysis', 'brownfield', or 'extend existing features' are missing, and not a 3 because the included keywords are natural rather than jargon-only.

Distinctiveness Conflict Risk

The gap-analysis framing carves a fairly clear niche distinct from code-review or design-generation skills, with only minor overlap risk with closely related spec-workflow skills. It is not a 5 because terms like 'requirements' and 'codebase' are broad enough to overlap with adjacent specification/refactoring skills.