global-development

global-development is an agent for Claude Code from FilipNowakowicz/nixos-config. It costs 0 tokens per session (402 once invoked), scanned A, original, MIT.

A shared set of development rules for commits and Python projects. It includes guidance such as keeping commit messages free of agent-attribution trailers and using uv to manage Python environments and commands.

In plain words
What is it for?
Use it when writing commits or working on Python projects that need consistent environment, dependency, test, and tool commands.
Why use it?
It keeps development practices consistent and avoids adding unwanted attribution or relying on an arbitrary global Python setup.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md). Also seen: mentions Codex.

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/filipnowakowicz/nixos-config/global-development
Clone the repo
git clone --depth 1 https://github.com/FilipNowakowicz/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 global-development

README.md
[![agentmods](https://agentmods.dev/badge/agents/filipnowakowicz/nixos-config/global-development.svg)](https://agentmods.dev/agents/filipnowakowicz/nixos-config/global-development)
Your own site
<a href="https://agentmods.dev/agents/filipnowakowicz/nixos-config/global-development"><img src="https://agentmods.dev/badge/agents/filipnowakowicz/nixos-config/global-development.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 402 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 5.1 $0.00000 $0.00402
Opus 5 $0.00000 $0.00201
Sonnet 5 $0.00000 $0.00080
Haiku 4.5 $0.00000 $0.00040

Measured 5d ago against content hash 3c9466475d8c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

global-development 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 5d 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.

home/files/agents/global-development.md · 35 lines

What it actually says

Global development preferences

Git commits

Do not add Co-Authored-By, agent-session, or tool-attribution trailers to commit messages. Do not mention Claude, Anthropic, Codex, OpenAI, Gemini, or other agent tooling in commit messages, PR descriptions, or PR bodies. Commits should show only the human author unless repository-specific instructions say otherwise.

Python projects

Unless a repository explicitly declares a different workflow, use uv for Python interpreter, environment, dependency, tool, and command management:

  • Use uv sync to create or update the project .venv from pyproject.toml and its lockfile.
  • Use uv run <command> for Python, tests, scripts, formatters, linters, and other project commands. Do not require manual virtualenv activation.
  • Use a uv-managed Python interpreter. Do not build a project environment from whichever global python or pip happens to be on PATH.
  • Keep project dependency metadata portable. pyproject.toml, uv.lock, and an optional .python-version are cross-platform Python files; keep .venv/ ignored.
  • Do not add flake.nix, shell.nix, .envrc, or ad-hoc nix-shell/ nix develop commands solely to supply Python dependencies. NixOS runtime compatibility belongs in ~/nix, not in otherwise portable Python repos.
  • Do not silently migrate a repository that intentionally uses Poetry, Conda, a project-local Nix shell, or another documented workflow. Repository-local instructions and existing project policy take precedence.

If a native Python wheel fails to load on NixOS, diagnose the missing shared library and fix the centralized nix-ld/workstation configuration when appropriate instead of adding machine-specific linker paths to the project.

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. 5d ago First seen · 35 lines · 0 tokens per session scan A 3c9466475d8c

Subscribe to this mod's changes

global-development is an agent published in the GitHub repository FilipNowakowicz/nixos-config (5 stars, last pushed yesterday), licensed MIT. It costs nothing until one of its globs matches a file; then it loads 402 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 2026-08-31.

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