agent-rules

agent-rules is a command for coding agents from ivuorinen/skills. It costs 0 tokens per session (3,714 once invoked), scanned A, original, no licence file.

An audit of a project's Claude Code rule files and CLAUDE.md instructions. It checks where rules belong and compares them with conventions found in the project.

In plain words
What is it for?
It validates .claude/rules/ files, classifies CLAUDE.md rules, and suggests concrete additional rules based on the audit.
Why use it?
It finds invalid, misplaced, or incomplete instructions that could cause the coding agent to work incorrectly.

Command

Part of the ivuorinen-skills plugin — 7 skills, 47 commands, 2 agents, 3 hooks, 1 MCP server shipped together

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 commands/ivuorinen/skills/agent-rules
Clone the repo
git clone --depth 1 https://github.com/ivuorinen/skills

Or install ivuorinen-skills, the plugin that ships this one along with the rest of its 7 skills, 47 commands, 2 agents, 3 hooks, 1 MCP server.

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 agent-rules

README.md
[![agentmods](https://agentmods.dev/badge/commands/ivuorinen/skills/agent-rules.svg)](https://agentmods.dev/commands/ivuorinen/skills/agent-rules)
Your own site
<a href="https://agentmods.dev/commands/ivuorinen/skills/agent-rules"><img src="https://agentmods.dev/badge/commands/ivuorinen/skills/agent-rules.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 3,714 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 5.1 $0.00000 $0.03714
Opus 5 $0.00000 $0.01857
Sonnet 5 $0.00000 $0.00743
Haiku 4.5 $0.00000 $0.00371

Measured 2d ago against content hash 663f4a23ae75, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

agent-rules scanned grade A with 1 finding 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 2d 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.

Reads agent configuration directorieslowAgent snooping

.claude/, .codex/, .gemini/ hold keys, settings and other credentials a mod has no legitimate need for.

and `~/.claude/settings.json` for `claudeMdExcludes` patterns. Any rule file

Downgraded: this mod is about security review, or the phrase is quoted, so it is likely naming the pattern rather than instructing it.

skills/nitpicker/commands/agent-rules.md · 234 lines

The source is not reproduced here

A licence we could not identify

The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.

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. 2d ago Changed · +32 lines 663f4a23ae75
  2. 5d ago First seen · 202 lines · 0 tokens per session scan A 904d1ec5918b

Subscribe to this mod's changes

agent-rules is a command published in the GitHub repository ivuorinen/skills (3 stars, last pushed yesterday), with no licence file. It costs nothing until one of its globs matches a file; then it loads 3,714 tokens. A static security scan graded it A with 1 finding (reads agent configuration directories). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.