The body is lean and assumes Claude's competence — it gives only an output template, four classification definitions, and one escalation rule with no concept-explaining fluff. It is not score 2 because there is no unnecessary explanation or padding to tighten.

It provides a concrete, copy-paste-ready output template and explicit classification criteria with a hard escalation rule ('Env failures → escalate-human. Do not fix with code changes'). Per the code-vs-instruction scoring note, the absence of executable code is not penalized because the guidance is concrete and actionable. It is not score 2 because the instructions are complete and specific rather than vague or pseudocode-like.

This is a simple single-task skill (classify one CI failure) whose action is unambiguous: the output template sequences the work (failure → job/step → classification → actionability → loop action) and the 'env → escalate-human' rule acts as a decision checkpoint. Per the simple-skills note, a clear single-purpose workflow can score 3. It is not score 2 because the sequence and decision rule are explicit.

The skill is under 50 lines with no external references needed and uses two well-organized sections ('Output per failure', 'Classification Rules'). Per the under-50-lines guideline, well-organized sections alone justify a 3. It is not score 2 because the content is appropriately structured rather than a monolithic wall of text.

The description lists multiple concrete actions — 'Parse CI failures, identify failing job/step, classify as flake, regression, env, or config' — naming the domain and several specific operations, matching the score-3 anchor. It is not score 2 because it goes beyond naming a domain and a couple actions to enumerating four classification categories.

It clearly states what the skill does (parse, identify, classify) and provides an explicit 'when' trigger with 'Use in CI sweeper loops before any fix attempt', an equivalent of a 'Use when...' clause. It is not score 2 because the trigger guidance is explicit rather than merely implied.

It includes relevant keywords like 'CI failures', 'failing job/step', 'flake', and 'regression', but the trigger phrasing 'CI sweeper loops before any fix attempt' leans on internal jargon rather than natural user language, and common variations like 'broken build' or 'pipeline failure' are missing. It is not score 3 because natural-term coverage is incomplete, and not score 1 because several genuine domain terms are present.

The CI-failure triage niche with named classification buckets is distinct and unlikely to trigger for unrelated skills. It is not score 2 because the scope is tightly bounded to CI failure classification rather than overlapping with general debugging or build skills.