renux: Skill for Claude Code

.agents/skills/pre-flight/SKILL.md

pre-flight is a skill for Claude Code, Codex from andrianllmm/renux. It costs 46 tokens per session (303 once invoked), scanned A, original, MIT.

A pre-commit checklist for the renux Python project. It runs tests, type checking, code formatting, linting, and a conditional README update before a commit.

In plain words
What is it for?
Use it before committing to run pytest, mypy, Black, isort, and the README synchronization script when relevant.
Why use it?
It catches the same problems enforced by automated checks and commit hooks before a commit fails. It also identifies files changed automatically by formatting or documentation scripts.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is andrianllmm/renux's own configuration. It tells Claude Code and Codex how to work on renux 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 renux configures →

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is poetry run python scripts/sync_readme.py.

Reuse

Borrowing it

Nothing to install: this file belongs to andrianllmm/renux. 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/andrianllmm/renux/main/.agents/skills/pre-flight/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/andrianllmm/renux

Made for: Claude Code, Codex.

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 pre-flight

README.md
[![agentmods](https://agentmods.dev/badge/skills/andrianllmm/renux/pre-flight.svg)](https://agentmods.dev/skills/andrianllmm/renux/pre-flight)
Your own site
<a href="https://agentmods.dev/skills/andrianllmm/renux/pre-flight"><img src="https://agentmods.dev/badge/skills/andrianllmm/renux/pre-flight.svg" alt="Measured on agentmods" height="20"></a>
Per session 46 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 303 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 1 finding, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Tool Misuse · line 42
    Tool parameters are crafted to achieve unintended or unsafe behavior. Parameter abuse can bypass intended safety checks (e.g. shell=True, --force, dangerous glob patterns).
    Fix: Validate all tool parameters against an allowlist. Reject dangerous parameter values (shell=True, --force, -rf /) and use safe defaults.
How audits are shown
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 $0.00046 $0.00303
Opus 5 $0.00023 $0.00151
Sonnet 5 $0.00009 $0.00061
Haiku 4.5 $0.00005 $0.00030

Measured 8d ago against content hash 51d41de5340c, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

pre-flight 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 8d 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.

.agents/skills/pre-flight/SKILL.md · 43 lines

What it actually says

pre-flight

Runs the same checks CI and the pre-commit hooks enforce, so problems are caught before a commit attempt fails partway through.

Steps

Run in order, fixing failures as you go:

  1. Tests
    poetry run pytest
    
  2. Type check
    poetry run mypy src
    
  3. Format and lint
    poetry run black .
    poetry run isort .
    
  4. README sync. Required if src/renux/tags.py or src/renux/tags_reference.py changed:
    poetry run python scripts/sync_readme.py
    
    If it prints "README.md tags reference updated.", re-stage README.md.
  5. Re-check git status/git diff for anything the above steps modified (formatting, README) before committing.

Notes

  • Commit messages must follow Conventional Commits (enforced by the commitizen commit-msg hook). Use poetry run cz commit for a guided prompt if unsure.
  • Don't bypass any of this with git commit --no-verify.
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. 8d ago First seen · 43 lines · 46 tokens per session scan A 51d41de5340c

Subscribe to this mod's changes

pre-flight is a skill published in the GitHub repository andrianllmm/renux (69 stars, last pushed 2d ago), licensed MIT. It adds 46 tokens to every session and 303 once invoked, about $0.0002 per session on Opus 5. 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 2026-08-30.

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