refactor-with-tests

refactor-with-tests is a skill for Claude Code, Codex from priyanshuchawda/codeaudit. It costs 30 tokens per session (166 once invoked), scanned A, original, MIT.

A refactoring workflow that uses focused tests to preserve existing behavior while code is reorganized. Refactoring means changing internal code structure without intentionally changing what it does.

In plain words
What is it for?
Finding behavior to preserve, adding or locating tests, making small refactors, and checking the result with tests and type checks.
Why use it?
It reduces the risk of breaking behavior when splitting files, removing duplication, or changing internal design.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/priyanshuchawda/codeaudit/refactor-with-tests
Any agent
npx skills add priyanshuchawda/codeaudit --skill refactor-with-tests
Clone the repo
git clone --depth 1 https://github.com/priyanshuchawda/codeaudit

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-with-tests

README.md
[![agentmods](https://agentmods.dev/badge/skills/priyanshuchawda/codeaudit/refactor-with-tests.svg)](https://agentmods.dev/skills/priyanshuchawda/codeaudit/refactor-with-tests)
Your own site
<a href="https://agentmods.dev/skills/priyanshuchawda/codeaudit/refactor-with-tests"><img src="https://agentmods.dev/badge/skills/priyanshuchawda/codeaudit/refactor-with-tests.svg" alt="Measured on agentmods" height="20"></a>
Per session 30 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 166 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00030 $0.00166
Opus 5 $0.00015 $0.00083
Sonnet 5 $0.00006 $0.00033
Haiku 4.5 $0.00003 $0.00017

Measured 3d ago against content hash 9cf87f17752a, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

refactor-with-tests 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 3d 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-with-tests/SKILL.md · 25 lines

What it actually says

Refactor With Tests

Workflow

  1. Identify the exact behavior to preserve.
  2. Add or locate tests that cover the behavior.
  3. Make the smallest useful refactor.
  4. Run relevant tests and typecheck.
  5. Update docs only when behavior, architecture, or setup changes.
  6. Summarize changed files and validation.

Guardrails

  • Do not combine unrelated refactors.
  • Do not rename public APIs without an explicit migration reason.
  • Do not weaken validation, auth, error handling, or observability to simplify code.
  • Preserve user changes in a dirty worktree.
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. 3d ago First seen · 25 lines · 30 tokens per session scan A 9cf87f17752a

Subscribe to this mod's changes

refactor-with-tests is a skill published in the GitHub repository priyanshuchawda/codeaudit (1 stars, last pushed 4mo ago), licensed MIT. It adds 30 tokens to every session and 166 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.