update

update is an agent for Claude Code from olafkfreund/nixos_config. It costs 51 tokens per session (7,120 once invoked), scanned B, original, GPL-3.0.

An agent that manages a guarded NixOS system update: updating the flake, checking issues, testing the build, and reporting completion before the system switch.

In plain words
What is it for?
Use it for routine NixOS updates when you want to test and review the result before switching.
Why use it?
It adds checks before an update is activated, reducing the chance of applying a broken configuration.

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/olafkfreund/nixos_config/update
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 update

README.md
[![agentmods](https://agentmods.dev/badge/agents/olafkfreund/nixos_config/update.svg)](https://agentmods.dev/agents/olafkfreund/nixos_config/update)
Your own site
<a href="https://agentmods.dev/agents/olafkfreund/nixos_config/update"><img src="https://agentmods.dev/badge/agents/olafkfreund/nixos_config/update.svg" alt="Measured on agentmods" height="20"></a>
Per session 51 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 7,120 The whole file, excluding the scripts and references it only reads on demand.
Security scan B 2 findings. Scan, not verified.
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 $0.00051 $0.07120
Opus 5 $0.00026 $0.03560
Sonnet 5 $0.00010 $0.01424
Haiku 4.5 $0.00005 $0.00712

Measured 3d ago against content hash b579a1f29d61, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade B, and why

update 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 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.

Asks for rootmediumPrivilege escalation

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

sudo -u "$user" DISPLAY=:0 DBUS_SESSION_BUS_ADDRESS=unix:path=/run/user/$user_id/bus \

Makes network callslowCapability

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

curl -X POST \
.claude/agents/update.md · 1,109 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. 3d ago First seen · 1,109 lines · 51 tokens per session scan B b579a1f29d61

Subscribe to this mod's changes

update is an agent published in the GitHub repository olafkfreund/nixos_config (22 stars, last pushed today), licensed GPL-3.0. It adds 51 tokens to every session and 7,120 once invoked, about $0.0003 per session on Opus 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.