swift-concurrency
Diagnose Swift Concurrency issues, refactor callback-based code to async/await, and guide Swift 6 migration when working with tasks, actors, @MainActor, Sendable, data races, thread safety, or concurrency-related compiler and linter warnings.
94
92%
Does it follow best practices?
Impact
Pending
No eval scenarios have been run
Passed
No known issues
Quality
Discovery
100%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 an excellent skill description that clearly articulates three specific capabilities, provides rich trigger terms covering the full Swift Concurrency vocabulary, and explicitly states when it should be used. It occupies a well-defined niche that would be easily distinguishable from other skills in a large skill library.
| Dimension | Reasoning | Score |
|---|---|---|
Specificity | Lists multiple specific concrete actions: 'Diagnose Swift Concurrency issues', 'refactor callback-based code to async/await', and 'guide Swift 6 migration'. These are clear, actionable capabilities. | 3 / 3 |
Completeness | Clearly answers both what (diagnose issues, refactor callback code, guide migration) and when ('when working with tasks, actors, @MainActor, Sendable, data races, thread safety, or concurrency-related compiler and linter warnings'). The 'when' clause is explicit with trigger conditions. | 3 / 3 |
Trigger Term Quality | Excellent coverage of natural terms a developer would use: 'async/await', 'tasks', 'actors', '@MainActor', 'Sendable', 'data races', 'thread safety', 'concurrency-related compiler and linter warnings', 'Swift 6 migration', 'callback-based code'. These are precisely the terms developers would mention. | 3 / 3 |
Distinctiveness Conflict Risk | Highly distinctive niche targeting Swift Concurrency specifically. The combination of Swift-specific terms like '@MainActor', 'Sendable', 'Swift 6 migration', and 'actors' makes it very unlikely to conflict with general coding or other language concurrency skills. | 3 / 3 |
Total | 12 / 12 Passed |
Implementation
85%Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.
This is a strong, well-structured skill that provides highly actionable guidance for Swift Concurrency issues. Its diagnostic table, migration validation loop, and reference router are particularly effective patterns. Minor weaknesses include some verbosity in explanatory sections and the promotional footer, but overall the content is dense with useful, specific guidance that respects Claude's intelligence while adding genuine domain expertise.
| Dimension | Reasoning | Score |
|---|---|---|
Conciseness | Generally efficient and well-structured, but includes some unnecessary content like the promotional footer, and the guardrails section has some verbose phrasing. The tables are dense but earn their place. The 'Concurrency Tool Selection' table partially restates knowledge Claude already has about basic async/await patterns. | 2 / 3 |
Actionability | Highly actionable with concrete diagnostics mapped to specific fixes, executable code examples for common scenarios, specific build commands, and a clear decision table for tool selection. The diagnostic table with 'first check → smallest safe fix → escalate' is particularly well-structured for immediate use. | 3 / 3 |
Workflow Clarity | Excellent workflow clarity with the Migration Validation Loop providing explicit build→fix→rebuild→test sequence with a clear 'only proceed when clean' checkpoint. The Fast Path section establishes a clear diagnostic sequence, Quick Fix Mode has explicit entry/exit criteria, and the 'When Quick Fixes Fail' section provides escalation steps. Verification checklist adds a final validation layer. | 3 / 3 |
Progressive Disclosure | The Reference Router section is exemplary progressive disclosure — organized by category (Foundations, Streams, Applied topics, Migration, Glossary) with clear one-level-deep references to specific files. The main SKILL.md serves as an effective overview and routing layer. However, no bundle files were provided to verify the referenced paths actually exist. | 3 / 3 |
Total | 11 / 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
- avdlee/swift-concurrency-agent-skill
- Commit
a73e4f9
- Reviewed
Table of Contents
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