The body is lean: short per-phase descriptions plus templates, with no padding explaining what debugging or basic tooling is, so every token earns its place.

It supplies concrete templates (reproduction steps, isolation questions, 5-Whys, verification checklist) and real executable commands (git log, grep -r, pm2 logs); per the instruction-skill note, concrete actionable guidance without code is fully rewarded.

The Reproduce → Isolate → Understand → Fix & Verify sequence is explicit, with verification checkpoints and before/during/after checklists; this is not a destructive/batch operation so the missing explicit retry loop does not cap the score.

A single well-organized file with clear sections and no nested/deep references; no bundle files are needed, so well-organized sections suffice for the top anchor.

Names the debugging domain and a couple of activities ("root cause analysis", "evidence-based verification") but does not enumerate multiple concrete actions like the anchor-3 example, so it sits at "names domain and some actions, but not comprehensive."

It states what the skill does ("4-phase systematic debugging methodology with root cause analysis and evidence-based verification") and gives an explicit "Use when debugging complex issues" trigger, clearly answering both what and when.

"Use when debugging complex issues" includes the natural keyword "debugging" but omits common variations users would say (troubleshooting, bug, errors, not working), matching "some relevant keywords but missing common variations."

The systematic-debugging framing is a recognizable niche, but the trigger "complex issues" is generic and could overlap with general problem-solving or coding skills, so it is "somewhat specific but could still overlap."