ast-grep

Use ast-grep (sg) for AST-aware code search and rewrite across 25 languages. Trigger for structural code matching or deterministic codemods: find every function/call/class/import shaped like X, rewrite console.log to logger.info, strip `as any`, migrate require() to import, find empty catch blocks or missing await, and scan/apply YAML rules. Prefer this over rg/grep when the target is syntax shape rather than text; use rg for string contents, comments, filenames, or regex-style byte searches.

Quality

100%

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Securityby

Low

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Quality

Content

100%Weight 40%Scale 1-5

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

The body is dense, executable, and well-structured: concrete commands throughout, an explicit dry-run-first workflow with validation checkpoints, and clean one-level-deep references to a complete bundle. It avoids teaching concepts Claude already knows.

Dimension	Reasoning	Score
Conciseness	Lean and token-efficient: no padding explaining what ASTs or libraries are, dense tables, and a decision tree that earns every token; assumes Claude's competence throughout.	5 / 5
Actionability	Copy-paste-ready commands for every helper subcommand and direct `sg` idiom, covering search, replace (dry-run and apply), scan, validate, and debug flows with concrete flags.	5 / 5
Workflow Clarity	Multi-step rewrite workflow is explicitly sequenced (search → dry-run → inspect → refine-or-apply) with a feedback loop, plus a prioritized 0-matches debugging triage and validation invariants for destructive/batch operations.	5 / 5
Progressive Disclosure	Clear overview in SKILL.md pointing one level deep to 7 real reference files and a helper script, with a prioritized 'Required reading' list and explicit per-file triggers; all referenced paths exist.	5 / 5
	Total	20 / 20 Passed

Description

100%Weight 40%Scale 1-5

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 precise, action-oriented, and rich with concrete trigger phrases and a clear when-to-use boundary. It comprehensively covers capabilities while remaining scannable and distinct from rg/grep-based search skills.

Dimension	Reasoning	Score
Specificity	Lists multiple concrete actions (find every function/call/class/import, rewrite console.log to logger.info, strip `as any`, migrate require() to import, find empty catch blocks or missing await, scan/apply YAML rules), giving comprehensive coverage.	5 / 5
Completeness	Explicitly answers both 'what' (AST-aware search and rewrite across 25 languages, scan/apply YAML rules) and 'when' ('Trigger for structural code matching...', 'Prefer this over rg/grep when the target is syntax shape rather than text').	5 / 5
Trigger Term Quality	Rich natural-language triggers users actually say ('find every', 'rewrite', 'codemod', 'empty catch blocks', 'missing await') plus synonyms (ast-grep/sg) and explicit rg/grep boundary terms.	5 / 5
Distinctiveness Conflict Risk	Occupies a clear niche (structural/AST matching) and draws an explicit boundary against rg/grep for text-shaped queries, minimizing wrong-skill conflict.	5 / 5
	Total	20 / 20 Passed

Validation

100%

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 — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository: code-yeongyu/lazycodex
Path: plugins/omo/skills/ast-grep/SKILL.md
Commit: 10f9558

Reviewed: 10 days ago

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