nixos_config: Agent for Claude Code

.claude/agents/module-refactor.md

module-refactor is an agent for Claude Code from olafkfreund/nixos_config. It costs 57 tokens per session (5,204 once invoked), scanned B, original, GPL-3.0.

A refactoring agent for NixOS modules that finds duplicated configuration and common anti-patterns. Refactoring means changing code structure without changing its intended behavior.

In plain words
What is it for?
Reviewing NixOS modules for duplication, proposing refactors, and applying changes based on project anti-pattern guidance.
Why use it?
It helps consolidate repeated configuration and address known patterns that make modules harder to maintain.

Agent for Claude Code

Written for Claude Code: context: fork in frontmatter. Also seen: model in frontmatter.

This is olafkfreund/nixos_config's own configuration. It tells Claude Code how to work on nixos_config itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything nixos_config configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ./desktop/gnome.

Reuse

Borrowing it

Nothing to install: this file belongs to olafkfreund/nixos_config. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/olafkfreund/nixos_config/main/.claude/agents/module-refactor.md
Clone the repo
git clone --depth 1 https://github.com/olafkfreund/nixos_config

Made for: Claude Code.

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 module-refactor

README.md
[![agentmods](https://agentmods.dev/badge/agents/olafkfreund/nixos_config/module-refactor/github.svg)](https://agentmods.dev/agents/olafkfreund/nixos_config/module-refactor)
Your own site
<a href="https://agentmods.dev/agents/olafkfreund/nixos_config/module-refactor"><img src="https://agentmods.dev/badge/agents/olafkfreund/nixos_config/module-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 module-refactor

Your own site · 80×15
<a href="https://agentmods.dev/agents/olafkfreund/nixos_config/module-refactor"><img src="https://agentmods.dev/badge/agents/olafkfreund/nixos_config/module-refactor.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 57 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 5,204 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin unknown 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 $0.00057 $0.05204
Opus 5.5 $0.00023 $0.02082
Sonnet 5.5 $0.00011 $0.01041
Haiku 4.5 $0.00006 $0.00520

Measured 1mo ago against content hash 47f44f32cfb1, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade B, and why

module-refactor scanned grade B with 2 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 1mo 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.

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

✅ No services run as root

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

buildInputs = [ curl jq python3 ];
.claude/agents/module-refactor.md · 881 lines

The source is not reproduced here

Licensed GPL-3.0

The repository is licensed GPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 1mo ago First seen · 881 lines · 57 tokens per session scan B 47f44f32cfb1

Subscribe to this mod's changes

module-refactor is an agent published in the GitHub repository olafkfreund/nixos_config (31 stars, last pushed today), licensed GPL-3.0. It adds 57 tokens to every session and 5,204 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it B with 2 findings (asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-01.

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