nixos_config: Command for Gemini CLI

.gemini/commands/sane.toml

sane is a command for Gemini CLI from olafkfreund/nixos_config. It costs 0 tokens per session (415 once invoked), scanned A, original, GPL-3.0.

A command that checks prompts for logical fallacies and technically impossible assumptions before an answer is produced.

In plain words
What is it for?
Use it to review a prompt before asking an agent to solve a technical problem.
Why use it?
It can identify flawed reasoning or unrealistic premises early.

Command for Gemini CLI

Written for Gemini CLI: installed under .gemini/.

This is olafkfreund/nixos_config's own configuration. It tells Gemini CLI 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/.gemini/commands/sane.toml
Clone the repo
git clone --depth 1 https://github.com/olafkfreund/nixos_config

Made for: Gemini CLI.

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 sane

README.md
[![agentmods](https://agentmods.dev/badge/commands/olafkfreund/nixos_config/sane.svg)](https://agentmods.dev/commands/olafkfreund/nixos_config/sane)
Your own site
<a href="https://agentmods.dev/commands/olafkfreund/nixos_config/sane"><img src="https://agentmods.dev/badge/commands/olafkfreund/nixos_config/sane.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 415 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 $0.00415
Opus 5 $0.00000 $0.00208
Sonnet 5 $0.00000 $0.00083
Haiku 4.5 $0.00000 $0.00042

Measured 6d ago against content hash 3305110a38fd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

sane 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 6d 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.

.gemini/commands/sane.toml · 34 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. 6d ago First seen · 34 lines · 0 tokens per session scan A 3305110a38fd

Subscribe to this mod's changes

sane is a command published in the GitHub repository olafkfreund/nixos_config (23 stars, last pushed yesterday), licensed GPL-3.0. It costs nothing until one of its globs matches a file; then it loads 415 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.