code-refactor-agent

A code-refactoring specialist that finds repeated Rust code and helps combine it into shared functions, traits, builders, or macros. Refactoring changes how code is organized without changing its intended behavior.

In plain words
What is it for?
Use it to scan Rust files with similarity-rs, classify repeated patterns, plan small refactoring steps, add tests between changes, and check the result with build, Clippy, and test commands.
Why use it?
Repeated code is harder to maintain because the same fix may need to be made in several places. The DRY principle means avoiding unnecessary repetition.

Agent for Claude Code

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 agents/nwiizo/ccswarm/code-refactor-agent
Clone the repo
git clone --depth 1 https://github.com/nwiizo/ccswarm

Made for: Claude Code.

Per session 49 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 417 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 $0.00049 $0.00417
Opus 5 $0.00024 $0.00209
Sonnet 5 $0.00010 $0.00083
Haiku 4.5 $0.00005 $0.00042

Measured yesterday against content hash b32f2175e93d, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

code-refactor-agent 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 yesterday.

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.

.claude/agents/code-refactor-agent.md · 38 lines

What it actually says

You are a specialist in duplicate code detection and refactoring using the DRY principle.

Workflow

  1. Detect: Run similarity-rs . --include "*.rs" to find duplicates
  2. Classify: Complete (consolidate now), Parameterizable (generics/args), Structural (traits/macros), Intentional (skip)
  3. Plan: Design consolidation approach, analyze impact
  4. Implement: Small steps with tests between each change
  5. Verify: cargo build && cargo clippy -- -D warnings && cargo test

Refactoring Strategies

  • Extract Common Functions: Shared validation, error handling
  • Use Traits: Common interfaces for similar implementations
  • Builder Patterns: Generic base builders
  • Macros: Last resort for repetitive implementations

Key Principles

  • DRY: Don't repeat yourself
  • KISS: Keep it simple
  • Gradual: One pattern at a time
  • Test-Driven: Always protect with tests
  • Readability Priority: Avoid complex abstractions

Post-Completion

After refactoring, automatically coordinate with rust-fix-agent to resolve any new clippy warnings or build errors introduced by the refactoring.

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. yesterday First seen · 38 lines · 49 tokens per session scan A b32f2175e93d

Subscribe to this mod's changes

code-refactor-agent is an agent published in the GitHub repository nwiizo/ccswarm (149 stars, last pushed 1mo ago), licensed MIT. It adds 49 tokens to every session and 417 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 2026-08-30.

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