async-programming

Concurrent operations with asyncio and Tokio, focusing on race condition prevention, resource safety, and performance

Quality

58%

Does it follow best practices?

Impact

—

No eval scenarios have been run

Securityby

Advisory

Suggest reviewing before use

Optimize this skill with Tessl

npx tessl skill review --optimize ./skills/async-programming/SKILL.md

Quality

Content

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 skill with excellent actionability through concrete, executable code examples and clear workflow guidance with TDD methodology. The progressive disclosure is well-handled with appropriate references to external files. The main weakness is some verbosity in meta-sections (validation gates, risk justifications) that don't add value for Claude's execution.

Suggestions

Remove the 'Validation Gates' section (Gate 0.1, 0.2, 0.11) - this is process documentation that doesn't help Claude execute the skill

Condense the Overview section by removing the risk level justification paragraph - Claude doesn't need explanation of why async is risky

Dimension	Reasoning	Score
Conciseness	The skill contains some unnecessary verbosity like the validation gates section and repeated summaries. The core patterns are well-presented but could be tighter - the overview section explains risk levels and justifications that Claude doesn't need.	2 / 3
Actionability	Excellent executable code examples throughout - the TDD workflow, performance patterns, and implementation patterns all provide copy-paste ready Python code with clear BAD/GOOD comparisons that make the correct approach immediately actionable.	3 / 3
Workflow Clarity	Clear multi-step TDD workflow with explicit phases (write test → implement → refactor → verify). The pre-implementation checklist provides explicit validation checkpoints, and the decision framework table gives clear guidance for different situations.	3 / 3
Progressive Disclosure	Well-organized with clear file structure at the top pointing to references/security-examples.md and references/advanced-patterns.md. Main content is appropriately scoped with detailed examples inline and advanced topics referenced externally.	3 / 3
	Total	11 / 12 Passed

Description

32%

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 identifies a clear technical domain (async programming in Python and Rust) with relevant focus areas, but lacks actionable specificity about what concrete tasks it performs. The absence of a 'Use when...' clause significantly weakens its utility for skill selection, and the trigger terms could be expanded to capture more natural user language.

Suggestions

Add a 'Use when...' clause with explicit triggers like 'Use when implementing async/await patterns, debugging race conditions, or working with asyncio or Tokio frameworks'

List specific concrete actions such as 'implement async handlers, debug deadlocks, manage shared state, optimize concurrent performance'

Expand trigger terms to include common variations: 'async', 'await', 'parallel processing', 'deadlock', 'mutex', 'futures', 'coroutines'

Dimension	Reasoning	Score
Specificity	Names the domain (concurrent operations with asyncio and Tokio) and mentions focus areas (race condition prevention, resource safety, performance), but doesn't list specific concrete actions like 'implement async/await patterns' or 'debug deadlocks'.	2 / 3
Completeness	Describes what the skill covers (concurrent operations focusing on certain aspects) but completely lacks any 'Use when...' clause or explicit trigger guidance for when Claude should select this skill.	1 / 3
Trigger Term Quality	Includes relevant technical terms like 'asyncio', 'Tokio', 'race condition', and 'concurrent' that users might mention, but misses common variations like 'async', 'await', 'parallel', 'threading', 'deadlock', or 'mutex'.	2 / 3
Distinctiveness Conflict Risk	The mention of specific frameworks (asyncio, Tokio) provides some distinctiveness, but 'concurrent operations' and 'performance' are broad enough to potentially overlap with general Python/Rust skills or other performance-related skills.	2 / 3
	Total	7 / 12 Passed

Validation

68%

Warnings & errors only

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 / 16 Passed

Validation for skill structure

Criteria	Description	Result
skill_md_line_count	SKILL.md is long (504 lines); consider splitting into references/ and linking	Warning
description_trigger_hint	Description may be missing an explicit 'when to use' trigger hint (e.g., 'Use when...')	Warning
metadata_version	'metadata' field is not a dictionary	Warning
license_field	'license' field is missing	Warning
frontmatter_unknown_keys	Unknown frontmatter key(s) found; consider removing or moving to metadata	Warning

	Total	11 / 16 Passed

Repository: martinholovsky/claude-skills-generator
Commit: 1086ef2

Reviewed: 4 months ago

Table of Contents

Discovery Implementation Validation

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