refactor

refactor is a skill for Claude Code, Codex from mickeyyaya/refactoring-skills. It costs 44 tokens per session (3,915 once invoked), scanned A, original, MIT.

A complete workflow for finding and fixing code smells—patterns that make code harder to understand or maintain. It can split independent refactoring work across isolated Git worktrees, which are separate working copies of a repository.

In plain words
What is it for?
Use it when reviewing code quality, locating design problems, choosing which issues to fix, applying independent refactorings, and checking the resulting changes.
Why use it?
It gives refactoring work a defined path from problem detection to verification, while reducing conflicts between separate changes. Outside automatic-approval sessions, it also pauses for confirmation at checkpoints.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: mentions subagents.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is ../refactor-wt-<group-slug> → branch: refactor/<group-slug>.

Good fit Use it when reviewing code quality, locating design problems, choosing which issues to fix, applying independent refactorings, and checking the resulting changes.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/mickeyyaya/refactoring-skills
agentmods
npx agentmods add skills/mickeyyaya/refactoring-skills/refactor

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for refactor

README.md
[![agentmods](https://agentmods.dev/badge/skills/mickeyyaya/refactoring-skills/refactor.svg)](https://agentmods.dev/skills/mickeyyaya/refactoring-skills/refactor)
Your own site
<a href="https://agentmods.dev/skills/mickeyyaya/refactoring-skills/refactor"><img src="https://agentmods.dev/badge/skills/mickeyyaya/refactoring-skills/refactor.svg" alt="Measured on agentmods" height="20"></a>
Per session 44 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 3,915 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00044 $0.03915
Opus 5 $0.00022 $0.01958
Sonnet 5 $0.00009 $0.00783
Haiku 4.5 $0.00004 $0.00392

Measured 8d ago against content hash 781bd195aa6b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

refactor scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

skills/refactor/SKILL.md · 400 lines

How it starts

The opening of the file, as written. The whole thing — 400 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/refactor — Full Refactoring Pipeline

Overview

Single entry point that orchestrates the complete refactoring workflow: detect smells → prioritize → partition into independent groups → execute in parallel worktrees via subagents → merge & verify.

Auto Mode Detection

Before starting, check if the user is in bypass/yolo mode (auto-accept permissions enabled). Detection signals:

  • User explicitly said "yolo mode", "bypass permissions", or "auto-accept"
  • The session is running with --dangerously-skip-permissions or equivalent
  • Tools are being auto-approved without user prompts

When auto mode is detected: Skip all confirmation prompts. Automatically select all issues, partition, launch parallel subagents, and merge passing branches without pausing. This enables fully autonomous refactoring.

When auto mode is NOT detected: Pause for user confirmation at each checkpoint as described below.

Git Isolation (MANDATORY)

All refactoring work MUST be done in isolated git worktrees branched from main. Never commit directly to main.

Execution Modes

The orchestrator selects the execution mode based on the partition result from Phase 3:

Condition Mode Worktrees
1 group or all issues touch the same files Sequential 1 worktree, 1 branch
N independent groups with no file overlap Parallel N worktrees, N branches, N subagents

Worktree Naming Convention

../refactor-wt-<group-slug>     →  branch: refactor/<group-slug>

Examples:

../refactor-wt-extract-auth     →  refactor/extract-auth
../refactor-wt-simplify-payment →  refactor/simplify-payment
../refactor-wt-cleanup-utils    →  refactor/cleanup-utils

Workflow

Phase 1  SCAN ──────────── on main (read-only)
Phase 2  PRIORITIZE ────── on main (read-only)
Phase 3  PLAN & PARTITION ─ on main (read-only, dependency analysis)
Phase 4  EXECUTE ────────── in worktrees (parallel subagents)
Phase 5  MERGE & VERIFY ── back on main (sequential merge, final scan)

Read the full file on GitHub · 400 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 8d ago First seen · 400 lines · 44 tokens per session scan A 781bd195aa6b

Subscribe to this mod's changes

refactor is a skill published in the GitHub repository mickeyyaya/refactoring-skills (6 stars, last pushed 5mo ago), licensed MIT. It adds 44 tokens to every session and 3,915 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.