swift-concurrency-pro
Reviews Swift code for concurrency correctness, modern API usage, and common async/await pitfalls. Use when reading, writing, or reviewing Swift concurrency code.
76
95%
Does it follow best practices?
Impact
—
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
89%Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.
This is a solid skill description that clearly identifies its niche (Swift concurrency review) and includes an explicit 'Use when' clause with natural trigger terms. The main weakness is that the specificity of capabilities could be improved by listing more concrete actions beyond the general 'reviews for correctness' framing. Overall, it performs well for skill selection purposes.
Suggestions
Expand the capability list with more concrete actions, e.g., 'Detects data races, checks Sendable conformance, validates actor isolation, and identifies structured concurrency issues' to improve specificity.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Names the domain (Swift concurrency) and some actions (reviews for concurrency correctness, modern API usage, async/await pitfalls), but doesn't list multiple granular concrete actions like detecting data races, checking Sendable conformance, or fixing actor isolation issues. | 2 / 3 |
Completeness | Clearly answers both 'what' (reviews Swift code for concurrency correctness, modern API usage, async/await pitfalls) and 'when' (Use when reading, writing, or reviewing Swift concurrency code), with an explicit 'Use when...' clause. | 3 / 3 |
Trigger Term Quality | Includes strong natural keywords users would say: 'Swift', 'concurrency', 'async/await', 'review', plus the broader terms 'reading', 'writing'. These cover the most common ways a user would phrase requests about Swift concurrency code review. | 3 / 3 |
Distinctiveness Conflict Risk | The combination of 'Swift' + 'concurrency' + 'async/await' creates a very specific niche that is unlikely to conflict with general code review skills or other language-specific skills. | 3 / 3 |
Total | 11 / 12 Passed |
Implementation
100%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is an exceptionally well-structured skill that serves as a concise review playbook with clear process steps, actionable rules, concrete code examples, and excellent progressive disclosure to reference files. It respects Claude's intelligence by stating rules as directives rather than tutorials, and the before/after example output format makes expectations unambiguous. The only minor note is that bundle files weren't provided for verification, but the reference structure is clearly designed and consistently referenced throughout.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | The skill is lean and efficient. It assumes Claude already understands Swift concurrency concepts and doesn't waste tokens explaining what actors, task groups, or async/await are. Every instruction is a directive, not a tutorial. The reference list at the bottom is appropriately terse. | 3 / 3 |
Actionability | The skill provides concrete, executable before/after code examples for common issues (actor reentrancy, unstructured task loops), a specific output format with file/line/rule structure, and clear directives like 'do not suggest @unchecked Sendable' with the reasoning and alternatives. The review process is a numbered checklist with specific reference files for each step. | 3 / 3 |
Workflow Clarity | The 12-step review process is clearly sequenced from high-priority pattern scanning through specific concern areas to diagnostics and testing. It includes conditional steps ('If doing a partial review, load only relevant files', 'If the project has strict-concurrency errors...', 'If reviewing tests...'). The output format specifies a prioritized summary, which serves as a validation checkpoint for the review's completeness. | 3 / 3 |
Progressive Disclosure | The skill is an excellent overview that delegates detailed content to 12 well-named, clearly-signaled reference files, each described with a one-line summary. References are all one level deep and organized by concern area. The main SKILL.md stays focused on process, core rules, and output format without inlining reference material. | 3 / 3 |
Total | 12 / 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.
Validation — 11 / 11 Passed
Validation for skill structure
No warnings or errors.
- Repository
- twostraws/Swift-Concurrency-Agent-Skill
- Commit
bee3f69
- Reviewed
Table of Contents
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