Lean and code-forward; prose only orients the reader to SDK-specific mechanics Claude would not already know (RUN_FINISHED outcome=interrupt, request/response pairing), with no padding or explanation of basic concepts, so every token earns its place.

Provides fully executable, copy-paste-ready C# for both the approval and interrupt paths — including tool wrapping, request detection, and resume — with concrete types and method calls rather than pseudocode.

Sequences each flow explicitly (server wrap -> client detect -> decide -> resume) and includes a numbered 'Verify' section with explicit checkpoints covering the destructive-tool case (effect occurs on approval, skipped on rejection).

A focused single-topic skill with no external bundle files; content is well-organized into clearly signaled sections (Approval, Interrupt, Anti-patterns, Verify) with no nested references, so the single-file structure is appropriate.

Names multiple concrete actions — 'gate a sensitive tool behind explicit approval', 'interrupt a run to collect free-form input', 'resume ... with their answer' — and cites exact API types (ApprovalRequiredAIFunction, InterruptRequestContent), matching the 'lists multiple specific concrete actions' anchor.

Explicitly answers both 'what' (pause/resume runs, gate tools, collect input) and 'when' via clearly labeled 'USE FOR' and 'DO NOT USE FOR' clauses, satisfying the explicit-trigger requirement.

Covers natural trigger terms a .NET developer would actually say — 'pause', 'resume', 'human approval', 'interrupt', 'human in the loop' — alongside the technical identifiers, giving good coverage of natural phrasings.

A clear niche (human-in-the-loop gating/interrupts) with an explicit 'DO NOT USE FOR' clause redirecting server-tools, client-tools, streaming-chat, and other concerns to sibling skills, making conflicts unlikely.