A command that reads a project’s .claude/rules.md file and treats its instructions as mandatory coding rules. It reports if the file is missing and confirms that the rules will be followed.

Use it to load and enforce project-specific development rules at the start of a session.

It gives a project one explicit place for binding instructions that guide the coding assistant’s work.

How spacehendrix/clauder configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to spacehendrix/clauder. 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/spacehendrix/clauder/main/.claude/commands/rules.md

Clone the repo

git clone --depth 1 https://github.com/spacehendrix/clauder

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.

README.md

[![agentmods](https://agentmods.dev/badge/commands/spacehendrix/clauder/rules/github.svg)](https://agentmods.dev/commands/spacehendrix/clauder/rules)

Your own site

<a href="https://agentmods.dev/commands/spacehendrix/clauder/rules"><img src="https://agentmods.dev/badge/commands/spacehendrix/clauder/rules/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

Your own site · 80×15

<a href="https://agentmods.dev/commands/spacehendrix/clauder/rules"><img src="https://agentmods.dev/badge/commands/spacehendrix/clauder/rules.svg" alt="Reviewed on agentmods" width="80" 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 262 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 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.

Model	Per session	Once invoked
Fable 5.1	$0.00000	$0.00262
Opus 5.5	$0.00000	$0.00105
Sonnet 5.5	$0.00000	$0.00052
Haiku 4.5	$0.00000	$0.00026

Measured 1mo ago against content hash 7f2cfa8d455b, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

rules 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 1mo 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.

.claude/commands/rules.md · 25 lines

What it actually says

Enforce Project Code Rules

You are now working on a project with mandatory coding rules. Execute these steps IMMEDIATELY:

READ .claude/rules.md - Look for and read the rules.md file in the .claude directory
INTERNALIZE EVERY RULE - These rules are BINDING and OVERRIDE all default behavior
ENFORCE WITHOUT EXCEPTION - You MUST follow them exactly as written throughout our entire session

CRITICAL ENFORCEMENT REQUIREMENTS:

These rules are MANDATORY and supersede all other instructions
You CANNOT deviate from these rules under ANY circumstances
If a rule conflicts with your normal approach, the project rule ALWAYS wins
Treat rule violations as critical errors that MUST be prevented
If .claude/rules.md doesn't exist, inform the user and ask them to create it

ACKNOWLEDGMENT REQUIRED:

After reading .claude/rules.md, you MUST:

Confirm you have read and understood all rules
State that you will enforce them absolutely
Then proceed with the user's request while maintaining strict compliance

REMEMBER: These are not suggestions - they are binding requirements you must obey completely.

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.

1mo ago First seen · 25 lines · 0 tokens per session scan A 7f2cfa8d455b

Subscribe to this mod's changes

rules is a command published in the GitHub repository spacehendrix/clauder (58 stars, last pushed 12d ago), licensed Apache-2.0. It costs nothing until one of its globs matches a file; then it loads 262 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 2026-09-03.

Project management agentic-coding agentic-engineering agentic-workflow ai-coding ai-coding-agent ai-coding-assistant

clauder: Command for Claude Code

Borrowing it

Wrote this? Show the measurements

What it costs to keep this loaded

Grade A, and why

Nothing flagged

What it actually says

Enforce Project Code Rules

CRITICAL ENFORCEMENT REQUIREMENTS:

ACKNOWLEDGMENT REQUIRED:

What this file has done since we first saw it

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