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swift-concurrency-expert

Swift concurrency review/fix: compiler errors, Sendable, isolation, remediation.

55

Quality

61%

Does it follow best practices?

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tessl review fix ./skills/swift-concurrency-expert/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

72%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is concise and well-structured with good progressive disclosure to real reference files, but it is instruction-only with no executable code examples and lacks an explicit validate-then-proceed feedback loop in its workflow.

Suggestions

Add at least one complete, executable Swift code example showing a before/after fix (e.g. a Sendable error resolved by isolating a conformance).

Add an explicit validation step to the workflow, e.g. 'Recompile and confirm the original data-race/Sendable diagnostic is gone before finalizing the fix.'

Include a brief verify/retry loop: if the compiler still reports a diagnostic, revisit the actor context or Sendable conformance before declaring the fix complete.

DimensionReasoningScore

Conciseness

The body is lean: a short overview, tight triage bullets, a compact fix list, and two references, with no padding explaining basic Swift or concurrency concepts Claude already knows.

3 / 3

Actionability

It gives specific fixes (e.g. '@MainActor' annotation, 'extension Foo: @MainActor SomeProtocol', '@concurrent async function') but only as inline illustrative snippets, with no complete executable code example for a fix-oriented skill.

2 / 3

Workflow Clarity

Two sequenced steps (Triage, Apply smallest safe fix) are clear, but there is no validation/verification checkpoint such as recompiling to confirm the diagnostic is gone; for compiler-error fixes this validate-fix-retry gap caps the score at 2.

2 / 3

Progressive Disclosure

A concise ~30-line overview with two clearly-signaled, one-level-deep references to real files (references/swift-6-2-concurrency.md and references/swiftui-concurrency-tour-wwdc.md), with detailed content appropriately split out.

3 / 3

Total

10

/

12

Passed

Description

50%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description is concise and domain-specific, but reads as a topic list rather than a full capability-plus-trigger statement. It lacks an explicit 'Use when...' clause and some natural trigger-term variations, which cap several dimensions at 2.

Suggestions

Add an explicit trigger clause, e.g. 'Use when the user has Swift concurrency compiler errors, Sendable violations, or actor-isolation problems in Swift 6.2+ code.'

Reframe the topic list as concrete actions, e.g. 'Diagnose Swift concurrency compiler errors, add @MainActor/actor isolation, fix Sendable conformance, and apply minimal remediation.'

Include common natural terms users would say such as 'Swift 6', 'actor isolation', 'data race', and 'async/await'.

DimensionReasoningScore

Specificity

The description names the domain ('Swift concurrency review/fix') and several concrete subtopics ('compiler errors, Sendable, isolation, remediation'), but as a topic list rather than an enumeration of distinct actions like 'extract text, fill forms, merge documents'.

2 / 3

Completeness

It clearly answers 'what' (review/fix Swift concurrency issues) but has no explicit 'Use when...' clause, so the 'when' trigger is only implied, capping completeness at 2 per the rubric guideline.

2 / 3

Trigger Term Quality

It includes real terms Swift developers use ('Swift concurrency', 'compiler errors', 'Sendable'), but omits common natural variations such as 'Swift 6', 'actor isolation', 'data race', or 'async/await'.

2 / 3

Distinctiveness Conflict Risk

'Swift concurrency' is a recognizable niche, but the terse phrasing could overlap with a generic code-review skill, and the lack of explicit triggers keeps it from being unambiguous.

2 / 3

Total

8

/

12

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository
steipete/agent-scripts
Reviewed

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