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.
npx agentmods add skills/agentworkforce/relay/creating-claude-rules-skillnpx skills add AgentWorkforce/relay --skill creating-claude-rules-skillgit clone --depth 1 https://github.com/AgentWorkforce/relayWrote 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.
[](https://agentmods.dev/skills/agentworkforce/relay/creating-claude-rules-skill)<a href="https://agentmods.dev/skills/agentworkforce/relay/creating-claude-rules-skill"><img src="https://agentmods.dev/badge/skills/agentworkforce/relay/creating-claude-rules-skill.svg" alt="Measured on agentmods" height="20"></a>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 | $0.00041 | $0.00618 |
| Opus 5 | $0.00020 | $0.00309 |
| Sonnet 5 | $0.00008 | $0.00124 |
| Haiku 4.5 | $0.00004 | $0.00062 |
Grade A, and why
creating-claude-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 4d 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.
Copies of this mod
1 near-identical copy found in the catalogue:
- creating-claude-rules — 100% identical, 34 lines differ
How it starts
The opening of the file, as written. The whole thing — 120 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Creating Claude Rules
Overview
Rules in .claude/rules/ are modular instructions scoped to specific files via glob patterns. They load automatically with same priority as CLAUDE.md.
When to Use
- Creating new rules in
.claude/rules/ - Fixing rules that use wrong frontmatter (
globsinstead ofpaths) - Migrating Cursor rules to Claude format
- Organizing project-specific conventions
Quick Reference
| Field | Claude | Cursor |
|---|---|---|
| Path patterns | paths |
globs |
| Always apply | Omit paths |
alwaysApply: true |
| Description | Not documented | description |
Frontmatter
Path-Scoped Rules
---
paths:
- 'src/api/**/*.ts'
- 'tests/**/*.test.ts'
---
Or single pattern:
---
paths: src/**/*.{ts,tsx}
---
Global Rules
Omit frontmatter entirely - applies to all files:
# TypeScript Conventions
Use .js extensions in imports.
Common Mistakes
# ❌ WRONG - globs is Cursor format
---
globs:
- '**/*.ts'
---
# ✅ CORRECT - Claude uses paths
---
paths:
- '**/*.ts'
---
# ❌ WRONG - alwaysApply is Cursor-only
---
alwaysApply: true
---
# ✅ CORRECT - just omit paths for global rules
# (no frontmatter needed)
# ❌ WRONG - unquoted patterns
---
paths:
- **/*.ts
---
# ✅ CORRECT - quote glob patterns
---
paths:
- "**/*.ts"
---
Directory Structure
.claude/rules/
├── testing.md # Path-scoped or global
├── typescript.md
└── frontend/ # Subdirectories supported
└── react.md
Files discovered recursively. Use subdirectories to organize.
Glob Patterns
| Pattern | Matches |
|---|---|
**/*.ts |
All .ts files anywhere |
src/**/* |
Everything under src/ |
*.md |
Markdown in root only |
**/*.{ts,tsx} |
.ts and .tsx files |
{src,lib}/**/*.ts |
.ts in src/ or lib/ |
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.
- 4d ago First seen · 120 lines · 41 tokens per session scan A 3956becfdc77
creating-claude-rules is a skill published in the GitHub repository AgentWorkforce/relay (813 stars, last pushed today), licensed Apache-2.0. It adds 41 tokens to every session and 618 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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