Agent skill · Databases

codemod-executor

Execute automated AST-based code transformations for large-scale refactoring and migration

a5c-aigithub.com/a5c-aiGitHub ↗
claude-codecodexcan modify filesMIT
Install
npx skills add a5c-ai/babysitter --skill codemod-executor --agent claude-code

Same command for any agent — swap --agent for codex, cursor, copilot.

Facts
Files in the skill folder: 2
SKILL.md size: 3 KB
Bundled scripts: none
Allowed tools: BashReadWriteGrepGlobEdit
Path: library/specializations/code-migration-modernization/skills/codemod-executor/SKILL.md
Open the folder on GitHub →
Where it comes from
Stars: 1,642
Language: JavaScript

Weekly change comes from our own snapshots, not the repository page — it measures attention, not adoption.

From the SKILL.md

# Codemod Executor Skill Executes automated code transformations using AST-based tools for large-scale refactoring, framework migrations, and language version upgrades. ## Purpose Enable automated code transformations for: - Framework migration (React, Angular, Vue) - Language version upgrades - API deprecation handling - Pattern standardization - Large-scale refactoring ## Capabilities ### 1. AST-Based Transformations - Parse source code to AST - Apply transformation rules - Generate modified source - Preserve code style ### 2. Pattern Matching and Replacement - Define source patterns - Specify target patterns - Handle edge cases - Support wildcards and captures ### 3. Multi-File Transformations - Apply across entire codebase - Handle import updates - Coordinate cross-file changes - Manage side effects ### 4. Dry-Run Preview - Preview changes before applying - Generate diff reports - Estimate impact scope - Identify risky transformations ### 5. Rollback Support - Create transformation checkpoints - Enable selective rollback - Track applied codemods - Maintain change history ### 6. Custom Codemod Creation - Define new transformation rules - Test codemods in isolation - Document tra

What's inside
Steps it walks through
  1. Purpose
  2. Capabilities
  3. 1. AST-Based Transformations
  4. 2. Pattern Matching and Replacement
  5. 3. Multi-File Transformations
  6. 4. Dry-Run Preview
  7. 5. Rollback Support
  8. 6. Custom Codemod Creation
  9. Tool Integrations
  10. Output Schema
  11. Integration with Migration Processes
  12. Related Skills
  13. Related Agents
Ships with 1 file
  • README.md
More from babysitter
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About this skill
What does the codemod-executor skill do?

Execute automated AST-based code transformations for large-scale refactoring and migration

How do I install it?

Run `npx skills add a5c-ai/babysitter --skill codemod-executor --agent claude-code` — it drops the skill into your project so the agent can pick it up. Swap the --agent value for codex, cursor or copilot if you use one of those.

Where does this skill come from?

From a5c-ai/babysitter, a repository with 1,642 stars. We read it straight from the repository tree rather than a submitted listing, so what you see here is what is actually published.

Is a popular skill a good skill?

Not necessarily. Stars measure attention, not adoption — a repository can trend for a week and be abandoned. That is why we show the weekly change from our own snapshots next to the total, instead of a single flattering number.

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