refactor

refactor is a command for Claude Code from boparaiamrit/skills-by-amrit. It costs 14 tokens per session (381 once invoked), scanned A, original, MIT.

A command for changing code structure while checking that its behaviour stays the same.

In plain words
What is it for?
Use it to remove duplication, split large functions or classes, rename or move code, and verify each change with tests.
Why use it?
It reduces the risk of breaking existing software during refactoring, which means improving internal code without intentionally changing what it does.

Command for Claude Code

Written for Claude Code: disable-model-invocation in frontmatter.

Part of the skills-by-amrit plugin — 33 skills, 34 commands, 9 agents shipped together

Good fit Use it to remove duplication, split large functions or classes, rename or move code, and verify each change with tests.

Compare 6 commands from other repositories ↓
Install with agentmods
npx agentmods add commands/boparaiamrit/skills-by-amrit/refactor
Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

Clone the repo
git clone --depth 1 https://github.com/boparaiamrit/skills-by-amrit

Made for: Claude Code.

Or install skills-by-amrit, the plugin that ships this one along with the rest of its 33 skills, 34 commands, 9 agents.

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/commands/boparaiamrit/skills-by-amrit/refactor/github.svg)](https://agentmods.dev/commands/boparaiamrit/skills-by-amrit/refactor)
Your own site
<a href="https://agentmods.dev/commands/boparaiamrit/skills-by-amrit/refactor"><img src="https://agentmods.dev/badge/commands/boparaiamrit/skills-by-amrit/refactor/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for refactor

Your own site · 80×15
<a href="https://agentmods.dev/commands/boparaiamrit/skills-by-amrit/refactor"><img src="https://agentmods.dev/badge/commands/boparaiamrit/skills-by-amrit/refactor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 381 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 $0.00014 $0.00381
Opus 5 $0.00007 $0.00191
Sonnet 5 $0.00003 $0.00076
Haiku 4.5 $0.00001 $0.00038

Measured 9d ago against content hash 2d6085107ebf, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-09, 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 9d 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.

commands/refactor.md · 46 lines

What it actually says

/refactor — Safe Refactoring

Refactor code while maintaining correctness through continuous verification.

Instructions

  1. Assess the target from $ARGUMENTS:

    • Read and understand the current code
    • Identify code smells: duplication, long functions, god classes, deep nesting
    • Map all callers and dependents of the code being refactored
  2. Establish a safety net:

    • Run existing tests: npm test / pytest / etc.
    • If no tests exist → WRITE CHARACTERIZATION TESTS FIRST
    • Note the current test results as the baseline
  3. Plan the refactoring — choose from:

    • Extract function — pull logic into a named function
    • Extract class — separate responsibilities
    • Rename — improve naming for clarity
    • Move — relocate code to better module
    • Inline — remove unnecessary abstraction
    • Replace conditional with polymorphism
    • Introduce parameter object — group related params
  4. Execute in small steps:

    • Make ONE refactoring move at a time
    • Run tests after EACH move
    • If tests fail → revert and try a different approach
    • Commit after each successful step
  5. Verify the refactoring:

    • All existing tests still pass
    • No new warnings or errors
    • Code is measurably simpler (fewer lines, less nesting, better names)
    • All callers still work correctly
  6. NEVER combine refactoring with behavior changes — do one or the other.

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. 9d ago First seen · 46 lines · 14 tokens per session scan A 2d6085107ebf

Subscribe to this mod's changes

refactor is a command published in the GitHub repository boparaiamrit/skills-by-amrit (5 stars, last pushed 5mo ago), licensed MIT. It adds 14 tokens to every session and 381 once invoked, about $0.0001 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.