Conciseness

Roughly 275 of ~475 lines are gstack framework machinery unrelated to debugging — the preamble bash block, the multi-page "Voice" persona section, telemetry opt-in flows, contributor mode, and plan-footer boilerplate — matching the anchor for noticeably verbose with several padded sections. Not 1 because it avoids tutorial-style explanation of concepts Claude already knows; not 3 because the off-topic padding is far more than 'some unnecessary explanation'.

Actionability

The debugging phases give concrete, executable guidance: "git log --oneline -20 -- <affected-files>", the scope-lock bash block, fully written AskUserQuestion scripts, and a copy-paste DEBUG REPORT template — mostly executable with minor gaps. Not 5 because commands depend on external $GSTACK_BIN binaries and contain substitution placeholders (SKILL_NAME, OUTCOME, <detected-directory>); not 3 because there is no pseudocode and the commands are specific and runnable.

Workflow Clarity

Phases 1-5 are clearly sequenced (investigate, pattern analysis, hypothesis testing, implementation, verification) with explicit validation steps — "Reproduce: Can you trigger the bug deterministically?", a regression test that must fail without the fix, "Run the full test suite", and non-optional fresh verification — plus feedback loops (wrong hypothesis returns to Phase 1; the 3-strike rule escalates). This matches the anchor for clear sequence with explicit validation, feedback loops, and checklists; no destructive-operation cap applies since verification is central to the workflow.

Progressive Disclosure

A single 475-line SKILL.md with no references or bundle files; the framework boilerplate (Voice, telemetry flows, contributor mode) is content that clearly belongs in separate shared files but is inlined, matching the anchor for some structure but content that should be separate is inline. Not 4 because nothing is split out or referenced; not 2 because section headers throughout make the document navigable.

Specificity

"Systematic debugging with root cause investigation. Four phases: investigate, analyze, hypothesize, implement" lists several specific actions (four named phases plus root cause investigation), matching the anchor for several specific actions with minor gaps. Not 5 because the phase names are somewhat generic and capabilities like pattern analysis and regression testing are not enumerated; not 3 because more than 1-2 concrete actions are named.

Completeness

Explicitly answers 'what' ("Systematic debugging with root cause investigation. Four phases... Iron Law: no fixes without root cause") and 'when' ("Use when asked to 'debug this', 'fix this bug', 'why is this broken'...") with concrete quoted trigger phrases, exactly matching the anchor-5 example structure.

Trigger Term Quality

Includes natural user phrases like "debug this", "fix this bug", "why is this broken", "investigate this error", "root cause analysis", plus "reports errors, unexpected behavior, or is troubleshooting" — good keyword coverage, but common variations such as "not working", "crash", or "stack trace" are missing. Anchor 5 requires comprehensive coverage including synonyms; this falls just short.

Distinctiveness Conflict Risk

"root cause analysis", "why is this broken", and "investigate this error" carve out a mostly distinct debugging niche, but "fix this bug" is a common phrase that could also fire for general coding/fix skills — matching the anchor for minor overlap risk with closely related skills. Not 5 because that overlap with generic fix-it requests is non-trivial; not 3 because the bulk of the triggers are specific to debugging and unlikely to collide with unrelated skills.