Conciseness

The body is efficient and assumes Claude's competence — no explanations of known concepts, and the 3-cycle table and checklists are token-dense. However, the WHY requirement, cycle cap, and validation rule are each restated across the intro, Rules, and Anti-Patterns sections, which is minor repetition that could be trimmed.

Actionability

The guidance is fully executable for an instruction-only skill: a copy-paste-ready spawn prompt template with fill-in sections and worked examples, an executable dedup command (`gh issue list --search "<keywords>" --state open`), checkbox success criteria, and contrasting good/bad spawn prompt examples covering the common cases.

Workflow Clarity

The multi-step process is clearly sequenced (spawn with 4 mandatory sections → cycle → coordinator validates against a checklist → delta-forwarded retry → cycle-3 escalation) with explicit validation checkpoints and a feedback loop ('If any item fails → do not accept. Spawn cycle N+1 ... with specific deltas'), plus checklists and a retry-vs-escalate decision table.

Progressive Disclosure

The single file is well-organized with clear section headers and no nested or buried references, and at ~150 lines a single file is a reasonable placement. It scores below 5 because the good/bad spawn prompt examples (and possibly the dedup and output-requirement sections) could be split into a separate reference file to keep SKILL.md a leaner overview.

Specificity

The description names the domain ("agent sub-tasks") and several concrete protocol elements ("Max-3-cycle", "WHY context", "coordinator validation"), listing several specific mechanisms with minor gaps — it omits other mandated behaviors like the issue dedup check and the escalation path, and uses noun-heavy phrasing rather than action verbs, keeping it below anchor 5.

Completeness

It answers both questions explicitly: the "what" is the three-component protocol ("Max-3-cycle protocol ... with WHY context and coordinator validation") and the "when" is a clear "Use when spawning sub-agents to complete scoped work" clause. The "when" is a single trigger clause without multiple concrete trigger variations, so it falls just short of anchor 5; it is well above anchor 3 because neither part is missing or merely implied.

Trigger Term Quality

"spawning sub-agents", "sub-tasks", and "scoped work" are natural phrases a user would say when needing this skill, giving good keyword coverage; a few natural synonyms like "delegate to an agent", "handoff", or "dispatch" are missing, so it does not reach comprehensive coverage.

Distinctiveness Conflict Risk

The description targets a clear niche (cycle-capped sub-agent coordination with mandatory validation) with distinct triggers around spawning sub-agents, so it is mostly distinguishable; there is minor overlap risk with other agent-coordination or delegation skills, which keeps it below anchor 5's minimal-conflict bar.