nixos_config: Command for Claude Code

.claude/commands/nix-workflow-security.md

nix-workflow-security is a command for Claude Code from olafkfreund/nixos_config. It costs 0 tokens per session (1,937 once invoked), scanned A, original, GPL-3.0.

A command for carrying out a complete security review and hardening cycle. Security hardening means reducing weaknesses and unsafe settings in a system or codebase.

In plain words
What is it for?
Use it to review and harden a NixOS or project configuration.
Why use it?
It helps identify security issues and apply steps intended to make the project safer.

Command for Claude Code

Written for Claude Code: installed under .claude/.

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 →

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/commands/nix-workflow-security.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 nix-workflow-security

README.md
[![agentmods](https://agentmods.dev/badge/commands/olafkfreund/nixos_config/nix-workflow-security.svg)](https://agentmods.dev/commands/olafkfreund/nixos_config/nix-workflow-security)
Your own site
<a href="https://agentmods.dev/commands/olafkfreund/nixos_config/nix-workflow-security"><img src="https://agentmods.dev/badge/commands/olafkfreund/nixos_config/nix-workflow-security.svg" alt="Measured on agentmods" height="20"></a>
Per session 0 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,937 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 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 $0.00000 $0.01937
Opus 5 $0.00000 $0.00968
Sonnet 5 $0.00000 $0.00387
Haiku 4.5 $0.00000 $0.00194

Measured 7d ago against content hash 3cf17d47c863, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

nix-workflow-security 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 7d 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.

.claude/commands/nix-workflow-security.md · 376 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. 7d ago First seen · 376 lines · 0 tokens per session scan A 3cf17d47c863

Subscribe to this mod's changes

nix-workflow-security is a command published in the GitHub repository olafkfreund/nixos_config (23 stars, last pushed today), licensed GPL-3.0. It costs nothing until one of its globs matches a file; then it loads 1,937 tokens. 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 2026-09-01.