Generate codemods for large-scale code changes. An agent skill from sundial-org/awesome-openclaw-skills.

No licenceAuto-check passedDevelopment

Install Codemod Gen

skills CLI
$ npx skills add sundial-org/awesome-openclaw-skills --skill codemod-gen -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install sundial-org/awesome-openclaw-skills codemod-gen --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/sundial-org/awesome-openclaw-skills.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/codemod-gen .claude/skills/codemod-gen && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
codemod-gen
GitHub stars
663
Token cost
~603 tokens
SKILL.md length
241 words
Files
1
Skills in repo
353
Repo updated
First seen
Licence
None found

At a glance

Generate codemods for large-scale code changes. An agent skill from sundial-org/awesome-openclaw-skills.

  • Refactoring patterns across many files
  • SKILL.md covers Quick Start, What It Does, Usage Examples and Best Practices, plus 5 more sections
  • Calls npx; needs OPENAI_API_KEY
  • Tasks that involve Code migrations

What it does

Codemod Gen is an agent skill from sundial-org/awesome-openclaw-skills. Generate codemods for large-scale code changes. Use when refactoring patterns across many files.

Its SKILL.md is about 600 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Development, covering Code migrations. It works with GitHub. The repository describes itself as: Top OpenClaw skills, with the most popular and useful ones.

When your agent uses it

  • Refactoring patterns across many files
  • Tasks that involve Code migrations

Example prompts

  • “/codemod-gen”

Requirements

  • Node.js
  • A credential in OPENAI_API_KEY

What it can do on your machine

Read from SKILL.md and the folder at commit b80cde2. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • npx

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    Links to these hosts (documentation or services it may open):

    • github.com
    • x.com
    • lxgicstudios.substack.com
    • lxgicstudios.com

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names these keys or tokens, usually read from environment variables:

    • OPENAI_API_KEY

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Codemod Gen loads about 603 tokens when it runs. Until then it costs about 27 tokens; SKILL.md has 241 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~27
When it runs · the whole SKILL.md, loaded when a task matches
~603

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

Without a licence we can't republish the file, so here is its outline and opening line. It has 241 words (~603 tokens).

“You need to replace a pattern across 500 files. Find and replace won't cut it. This tool generates AST-based codemods that safely transform your code at scale.”

— opening of SKILL.md by sundial-org
name
codemod-gen

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/codemod-gen of sundial-org/awesome-openclaw-skills.

Open the folder on GitHubat commit b80cde2

Compare with similar skills

Codemod Gen next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Codemod Gen compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Codemod Gen this skillsundial-org/awesome-openclaw-skills663—~603Automated safety check: PassNone
OBS Plugin Dependency Upgradesorayuki/obs-multi-rtmp5.1k—~609Automated safety check: PassGPL-2.0
Mariadb Operator Release Notesmariadb-operator/mariadb-operator1k—~3.3kAutomated safety check: PassApache-2.0
Skia Analystmono/SkiaSharp5.6k—~1.6kAutomated safety check: PassMIT
Project Gradle Third Party Version UpgradeafkT/DevUtils1.6k—~1.2kAutomated safety check: PassApache-2.0
ONNX Opset Bump Checklistmicrosoft/onnxruntime22k—~12kAutomated safety check: PassMIT

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Works with

Categories

Questions about Codemod Gen

What does Codemod Gen do?

Generate codemods for large-scale code changes. An agent skill from sundial-org/awesome-openclaw-skills. Codemod Gen is an agent skill from sundial-org/awesome-openclaw-skills. Generate codemods for large-scale code changes.

When should I use Codemod Gen?

Codemod Gen fits situations like: refactoring patterns across many files; tasks that involve Code migrations.

How do I install Codemod Gen in Claude Code?

Run `npx skills add sundial-org/awesome-openclaw-skills --skill codemod-gen -a claude-code`. Or copy the skill folder (skills/codemod-gen in sundial-org/awesome-openclaw-skills) into .claude/skills/codemod-gen in your project. Claude Code loads it when a task matches its description.

How do I install Codemod Gen in Codex?

Run `npx skills add sundial-org/awesome-openclaw-skills --skill codemod-gen -a codex`. Or copy the skill folder (skills/codemod-gen in sundial-org/awesome-openclaw-skills) into .agents/skills/codemod-gen in your project. Codex loads it when a task matches its description.

Can I use Codemod Gen in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add sundial-org/awesome-openclaw-skills --skill codemod-gen -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/codemod-gen, .gemini/skills/codemod-gen, .github/skills/codemod-gen and .opencode/skills/codemod-gen in your project.

What does Codemod Gen need to run?

Going by SKILL.md and its folder, Codemod Gen needs the command-line tools its instructions call (npx) and credentials named OPENAI_API_KEY. Our summary lists: Node.js; A credential in OPENAI_API_KEY.

Does Codemod Gen access the network?

SKILL.md names 4 domains. As links in the text: github.com, x.com, lxgicstudios.substack.com and lxgicstudios.com. This is read from the text; nothing was executed.

Is Codemod Gen safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Codemod Gen use?

No licence was found for Codemod Gen or its repository. Without one, default copyright applies: ask the author before reusing or redistributing it.

How many tokens does Codemod Gen use?

About 603 tokens (SKILL.md is roughly 2.4k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Codemod Gen?

Skills that share tags, products or a category with Codemod Gen: OBS Plugin Dependency Upgrade (sorayuki/obs-multi-rtmp, 5.1k stars), Mariadb Operator Release Notes (mariadb-operator/mariadb-operator, 1k stars), Skia Analyst (mono/SkiaSharp, 5.6k stars) and Project Gradle Third Party Version Upgrade (afkT/DevUtils, 1.6k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Codemod Gen?

sundial-org (a GitHub organization) maintains it in sundial-org/awesome-openclaw-skills, which has 663 GitHub stars. The repository holds 353 skills in this directory. The repository was last updated on March 7, 2026.

Source: sundial-org/awesome-openclaw-skills on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.