a5c-ai/codemod-executor
library/specializations/code-migration-modernization/skills/codemod-executor/SKILL.md
Execute automated AST-based code transformations for large-scale refactoring and migration
$ install --global
skillsauthnpx skillsauth add a5c-ai/babysitter codemod-executorInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
3 of 9 scanners reported clean
Some scanners were skipped, did not run, or reported a non-clean status. Review each row below.
3
Scanners Passed
9
Scanners in report
Clean
TrivyContainer and dependency vulnerability scanner
95%
Clean
SemgrepStatic code analysis for vulnerabilities
95%
Clean
mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
Skipped
Socket.devSupply chain security analysis
50%
Skipped
VirusTotalMulti-engine malware detection
50%
Skipped
CrowdStrikeAdvanced threat intelligence
50%
Skipped
OSV-ScannerOpen Source Vulnerability database check
50%
Skipped
OWASP Dep-Check
50%
Last scanned: Apr 28, 2026, 4:27 PM258.3s2 files scanned
SKILL.md
- name:
- codemod-executor
- description:
- Execute automated AST-based code transformations for large-scale refactoring and migration
- allowed-tools:
- ["Bash", "Read", "Write", "Grep", "Glob", "Edit"]
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 transformation logic
- Share across teams
Tool Integrations
| Tool | Language | Integration Method | |------|----------|-------------------| | jscodeshift | JavaScript/TypeScript | CLI | | ts-morph | TypeScript | Library | | Rector | PHP | CLI | | Scalafix | Scala | CLI | | OpenRewrite | Java | CLI / Maven | | Bowler | Python | CLI | | ast-grep | Multi-language | CLI / MCP | | gofmt -r | Go | CLI |
Output Schema
{
"executionId": "string",
"timestamp": "ISO8601",
"codemod": {
"name": "string",
"version": "string",
"description": "string"
},
"results": {
"filesProcessed": "number",
"filesModified": "number",
"filesSkipped": "number",
"transformations": "number"
},
"changes": [
{
"file": "string",
"transformations": [
{
"type": "string",
"line": "number",
"before": "string",
"after": "string"
}
]
}
],
"errors": [],
"warnings": []
}
Integration with Migration Processes
- code-refactoring: Large-scale refactoring
- framework-upgrade: Framework migrations
- language-version-migration: Syntax upgrades
- code-translation: Language conversion assist
Related Skills
refactoring-assistant: Suggests transformationsstatic-code-analyzer: Pre-transformation analysis
Related Agents
code-transformation-executor: Orchestrates codemodsframework-upgrade-specialist: Framework-specific codemods
Related Skills
a5c-ai/model-card-generator
development
VerifiedTrustedCommunity
Model documentation skill for generating model cards following Google's model card framework.
680SKILL.mdUpdated Apr 28, 2026
a5c-ai/mlflow-experiment-tracker
development
VerifiedTrustedCommunity
MLflow integration skill for experiment tracking, model registry, and artifact management. Enables LLMs to log experiments, compare runs, manage model lifecycle, and retrieve artifacts through the MLflow API.
680SKILL.mdUpdated Apr 28, 2026
a5c-ai/lime-explainer
data-ai
VerifiedTrustedCommunity
LIME-based local explanation skill for individual predictions across tabular, text, and image data.
680SKILL.mdUpdated Apr 28, 2026
a5c-ai/kubeflow-pipeline-executor
devops
VerifiedTrustedCommunity
Kubeflow Pipelines skill for ML workflow orchestration, component management, and Kubernetes-native ML.
680SKILL.mdUpdated Apr 28, 2026