Conciseness

The body contains no re-explanations of concepts Claude already knows and no padding; even the portability paragraph ("Every path, command, fact, and cross-plugin reference... must be available in every target environment") is dense, non-obvious instruction. Lean and efficient — anchor 5.

Actionability

Guidance is fully concrete: exact commands ("uvx skilllint@latest check {agent-path}", "claude plugin validate {plugin-root}"), exact destination paths per scope, a complete minimal agent template, and an exact output contract. The template's placeholders are inherent to a creation skill and the flexibility is contextually justified. Anchor 5.

Workflow Clarity

Five ordered steps (Discover, Resolve Requirements, Write, Place, Validate) each end with an explicit "Gate:" checkpoint, and the Validate step gives exact commands with a fix-every-error-before-completion feedback loop plus a session-restart instruction. This matches anchor 5 (clear sequence, explicit validation, error-recovery loop).

Progressive Disclosure

The body is a lean overview with an Authority Pointers section giving each of three references (agent-schema.md, agent-templates.md, agent-examples.md) a precise read-condition; all three files exist in the bundle, are reached by relative paths, and are one level deep. Anchor 5.

Specificity

"Create or adapt Claude Code agent definitions" names the domain plus exactly two concrete actions (create, adapt), but does not enumerate the work involved (frontmatter fields, placement, validation). This matches anchor 3 (domain and 1-2 concrete actions, not comprehensive); anchor 4 would require several specific listed actions.

Completeness

The description clearly answers "what" ("Create or adapt Claude Code agent definitions") and "when" with an explicit "Use when" clause listing four concrete trigger branches. This matches the anchor-5 example pattern of explicit what-and-when with concrete triggers.

Trigger Term Quality

Triggers like "creating an agent", "changing subagent configuration", "selecting agent scope", and "designing a specialized delegation role" are natural phrases users would say, but common synonyms such as "agent definition", "subagent setup", or ".claude/agents" are missing. Good coverage with a few natural terms absent — anchor 4, not the comprehensive synonym coverage of anchor 5.

Distinctiveness Conflict Risk

The niche (Claude Code agent definitions) is mostly distinct with precise triggers, but it sits directly adjacent to plugin- and skill-creation skills, so a request like "create a specialized role" carries minor overlap risk. Anchor 4 (minor overlap with closely related skills) fits better than anchor 5.