Content
85%Weight 40%Scale 1-5Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
A well-structured, domain-expert-level skill body: a sequenced diagnostic workflow with validation and a checklist, a concrete isolation decision table, named safety rules with specific APIs, and a clean one-level-deep reference bundle that all resolves to real files. The main residuals are mild redundancy between Safety Rules and Common Mistakes plus a redundant TOC, and the absence of any inline code examples for the highest-risk patterns.
Suggestions
Drop the Contents table-of-contents (section headers are already scannable in a ~100-line file) and merge the overlapping entries between Safety Rules and Common Mistakes — e.g., the lock-across-await and detached-task items appear in both lists — to save tokens.
Add one short inline snippet for the highest-risk pattern (a checked continuation with exactly-once completion on every terminal path), since the body currently defers all code to references/bridging-interop.md.
Signal references/swiftui-concurrency.md from a body section (e.g., from Scope or Isolation Decisions, where SwiftUI .task routing is mentioned) so it is not discoverable only via the flat References list.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The body is lean and imperative with no basic-concept explanations ("Never hold a synchronous lock across `await`" assumes competence), but the Contents TOC duplicates the section headers and Common Mistakes restates several Safety Rules nearly verbatim (lock-across-await, detached tasks, actor revalidation after await). This fits anchor 4's 'minor instances... that could be trimmed' rather than anchor 5's 'every token earns its place'. | 4 / 5 |
Actionability | Concrete guidance throughout: a decision table mapping situations to specific isolation choices, named APIs (`@unchecked Sendable`, `nonisolated(unsafe)`, `Task.detached`, `async let`, `TaskGroup`, `AsyncStream`), and scoped pointers to reference files. However, no inline code examples of the key patterns (exactly-once continuation, stream termination cleanup) exist in the body — they are deferred to references — so it stops short of anchor 5's 'specific examples cover the common cases'. | 4 / 5 |
Workflow Clarity | The Diagnostic Workflow is a clear 5-step sequence with a toolchain preflight, an explicit validation checkpoint ("Rebuild, inspect new diagnostics, and test cancellation/failure behavior affected by the change"), an implicit fix-and-recheck loop, and a closing Review Checklist — matching anchor 5's 'explicit validation steps; feedback loops...; checklists'. This is not a destructive or batch operation, so no cap applies. | 5 / 5 |
Progressive Disclosure | The body is a true overview and all seven referenced files (references/diagnostics.md, approachable-concurrency.md, synchronization-primitives.md, concurrency-patterns.md, bridging-interop.md, async-algorithms.md, swiftui-concurrency.md) exist with substantive content at one level deep, six of them signaled inline with purpose statements (e.g., "Use [Diagnostics](references/diagnostics.md) for compiler-message-specific remedies"). Bulk detail (e.g., the 417-line synchronization guide) is appropriately externalized, matching anchor 5; the only nit is that swiftui-concurrency.md is surfaced only in the flat References list. | 5 / 5 |
Total | 18 / 20 Passed |