Skill Detail
Apply structural codemods across large codebases with Comby
Rewrite recurring code patterns with syntax-aware matching so agents can run migration codemods more safely than plain regex search and replace.
Developer ToolsMulti-Framework
Developer Tools
Multi-Framework
Security Reviewed
⭐ 2.6k GitHub stars
COPY SKILL INSTRUCTIONS (OPTIONAL)
npx skills add agentskillexchange/skills --skill apply-structural-codemods-across-large-codebases-with-comby
Uses the third-party skills CLI, not an ASE-owned installer. Check your agent’s compatibility. This copies instructions; complete the upstream tool setup below separately.
At a glance
Tools required
Comby CLI
Install & setup
Install Comby from the release binaries or package manager for your platform, then run a match and rewrite pair such as
comby 'old(:[x])' 'new(:[x])' -matcher .python -i.Author
comby-tools
Publisher
Organization
Last updated
Apr 15, 2026
Quick brief
Use Comby when an agent needs to perform a large-scale code migration or structural rewrite across many files without relying on brittle text regexes. The agent can define a match template, apply a rewrite template, and review the resulting codemod output as a migration batch. The boundary is structural search-and-rewrite for code transformation campaigns, not a generic developer utility listing or broad parsing framework card.