Conciseness

The body is dense and table-driven, assuming Claude's competence, but the "don't delegate simple tasks" rule is stated three times (decision tree, prose paragraph, and Common Misjudgments) and the opening sentence re-states the tool's purpose — minor over-explanation that could be trimmed, matching anchor 4 rather than the every-token-earns-its-place anchor 5.

Actionability

Copy-paste-ready Agent and SendMessage invocation blocks, parameter tables, a subagent_type mapping table, and a hard-limits table give mostly executable guidance; however every example prompt is elided as "..." placeholder text, a minor gap versus anchor 5's requirement that specific examples cover the common cases.

Workflow Clarity

The delegation decision tree gives a clear sequenced flow (message → route → subagent type → invoke → aggregate) and error states are named ("output-error"), but no guidance exists for recovering from a failed subagent and there are no checkpoints — anchor 4 (clear sequence, minor validation gaps) rather than anchor 5's explicit feedback loops.

Progressive Disclosure

The skill is a single self-contained file with well-organized sections and tables, and no bundle files exist; the ~125-line body exceeds the under-50-line simple-skill exception, and minor items (streaming event internals, subagent capability tables) could live in one-level-deep references — good structure with minor organization gaps, matching anchor 4.

Specificity

The description names the delegation domain and enumerates six concrete subagent targets ("browser / doc-editor / data-analyst / extractor / canvas-designer / coder") plus explicit exclusion cases, but does not enumerate the skill's own concrete actions (invoking Agent, SendMessage follow-ups, parallel fan-out) — several specifics with minor coverage gaps, matching anchor 4 rather than a comprehensive anchor-5 list.

Completeness

It explicitly answers both questions: what ("deciding whether / how to outsource sub-tasks to built-in subagents") and when, with a concrete positive trigger ("Triggers when the master Agent faces a multi-step complex task") and an explicit "**Not for**:" exclusion clause — the 'when' is more explicit than anchor 4's 'could be more specific'.

Trigger Term Quality

Good natural-keyword coverage: "multi-step complex task", "outsource sub-tasks", the six subagent names, and "single-step Q&A / reads" as negative triggers; a few natural synonyms users might say ("delegate", "dispatch", "fan out") are missing, so it sits at anchor 4 rather than the comprehensive synonym coverage of anchor 5.

Distinctiveness Conflict Risk

It occupies a clear niche (delegation decision-making for the Agent tool) and the explicit "Not for" boundaries fence off single-step tasks and cases where the Agent call is already confirmed, minimizing overlap with skills for the individual subagents.