Agent skill

Refactor

by av in av/mi

Restructure code without changing behavior. An agent skill from av/mi.

No licenceAuto-check passedDevelopment

Install Refactor

skills CLI
$ npx skills add av/mi --skill refactor -a claude-code

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

GitHub CLI
$ gh skill install av/mi refactor --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/av/mi.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/refactor .claude/skills/refactor && 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
refactor
GitHub stars
102
Token cost
~1.2k tokens
SKILL.md length
651 words
Files
1
Skills in repo
20
Repo updated
First seen
Licence
None found

At a glance

Restructure code without changing behavior. An agent skill from av/mi.

  • Works in 6 steps: Green gate. Call skill("verify") and… → Name the transformation. One sentence:… → Callsite sweep (required for any rename… → …
  • Tasks that involve Refactoring
  • SKILL.md covers Scope rules — read before…, Steps, Definition of done and Red Flags — stop and ask the…
  • Calls node and git

What it does

Refactor is an agent skill from av/mi. Restructure code without changing behavior. Triggers: "rename X to Y", "move X to Y", "extract X into Y", "clean up / split / deduplicate code" — one transformation at a time, tests kept green.

Its SKILL.md is about 1.2k 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 Refactoring. The repository describes itself as: self-extending sandboxed agentic harness. a loop, two tools and an llm.

When your agent uses it

  • Tasks that involve Refactoring

Example prompts

  • “rename X to Y”
  • “move X to Y”
  • “extract X into Y”
  • “/refactor”

Workflow steps

6 steps, taken from the first numbered list in SKILL.md.

  1. Green gate. Call skill("verify") and follow its body to run the project's tests. Do not proceed without loading it.
  2. Name the transformation. One sentence: "rename foo → bar", "extract parseDate from utils.py into date_utils.py", "split big_module.py into…
  3. Callsite sweep (required for any rename / move / signature change). Spawn a subagent via node "$MI_PATH" -p '' with bg=truthy — the…
  4. Summary contract — the callsite subagent writes /tmp/mi-refactor-callsites-.md with
  5. Apply. Transform every non-ambiguous hit in one pass. Re-run the test suite (reuse the commands from the verify load in step 1). If red…
  6. Commit. Use the sentence from step 2 as the commit message subject. Mark the pass complete before starting the next transformation. Never…

What it can do on your machine

Read from SKILL.md and the folder at commit 2bf50c9. 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:

    • node
    • git

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

  • Network

    No URLs in SKILL.md. Its commands use git, which can reach the network depending on how they are called.

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

  • Credentials

    Names no API keys, tokens, secrets or passwords.

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

Context cost

Refactor loads about 1.2k tokens when it runs. Until then it costs about 51 tokens; SKILL.md has 651 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~51
When it runs · the whole SKILL.md, loaded when a task matches
~1.2k

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 651 words (~1,152 tokens).

“A refactor that changes behavior is not a refactor — it's a bug risk wearing a refactor's clothes. Keep structural and behavioral changes in separate commits always.”

— opening of SKILL.md by av
name
refactor

Read the full SKILL.md on GitHub

Files

Just SKILL.md in skills/refactor of av/mi.

Open the folder on GitHubat commit 2bf50c9

Compare with similar skills

Refactor 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.

Refactor compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Refactor this skillav/mi102—~1.2kAutomated safety check: PassNone
Guidelinesakash-network/node1.1k22 repos~577Automated safety check: PassMIT
Component Refactoringlangflow-ai/langflow156k—~3.5kAutomated safety check: PassMIT
Migrate Core Code to Submodulestinyhumansai/openhuman41k—~2.6kAutomated safety check: PassGPL-3.0
ast-grep Structural Searchcode-yeongyu/oh-my-openagent70k—~3.3kAutomated safety check: PassMIT
Systematic Code Refactoringluongnv89/claude-howto42k—~3kAutomated safety check: PassMIT

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Categories

Questions about Refactor

What does Refactor do?

Restructure code without changing behavior. An agent skill from av/mi. Refactor is an agent skill from av/mi. Restructure code without changing behavior.

When should I use Refactor?

Refactor fits situations like: tasks that involve Refactoring.

How do I install Refactor in Claude Code?

Run `npx skills add av/mi --skill refactor -a claude-code`. Or copy the skill folder (skills/refactor in av/mi) into .claude/skills/refactor in your project. Claude Code loads it when a task matches its description.

How do I install Refactor in Codex?

Run `npx skills add av/mi --skill refactor -a codex`. Or copy the skill folder (skills/refactor in av/mi) into .agents/skills/refactor in your project. Codex loads it when a task matches its description.

Can I use Refactor 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 av/mi --skill refactor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/refactor, .gemini/skills/refactor, .github/skills/refactor and .opencode/skills/refactor in your project.

What does Refactor need to run?

Going by SKILL.md and its folder, Refactor needs the command-line tools its instructions call (node and git).

Does Refactor access the network?

SKILL.md contains no URLs. Its commands use git, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Refactor 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 Refactor use?

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

How many tokens does Refactor use?

About 1.2k tokens (SKILL.md is roughly 4.6k 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 Refactor?

Skills that share tags, products or a category with Refactor: Guidelines (akash-network/node, 1.1k stars), Component Refactoring (langflow-ai/langflow, 156k stars), Migrate Core Code to Submodules (tinyhumansai/openhuman, 41k stars) and ast-grep Structural Search (code-yeongyu/oh-my-openagent, 70k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Refactor?

av (a GitHub user) maintains it in av/mi, which has 102 GitHub stars. The repository holds 20 skills in this directory. The repository was last updated on September 26, 2026.

Source: av/mi on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.