What is writing-with-agents CLAUDE.md?

Repository instructions for creating skills that guide AI agents through writing tasks. They define skill descriptions, required metadata, and the project’s structure and compatibility rules.

Use them when authoring or updating writing-related agent skills, including their frontmatter, triggers, structure, and documentation.

They help keep skills focused on when they should be used, instead of hiding workflow instructions in their descriptions.

How Jeffallan/writing-with-agents configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to Jeffallan/writing-with-agents. 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/Jeffallan/writing-with-agents/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/Jeffallan/writing-with-agents

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/instructions/jeffallan/writing-with-agents/claude-md/github.svg)](https://agentmods.dev/instructions/jeffallan/writing-with-agents/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/jeffallan/writing-with-agents/claude-md"><img src="https://agentmods.dev/badge/instructions/jeffallan/writing-with-agents/claude-md/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/instructions/jeffallan/writing-with-agents/claude-md"><img src="https://agentmods.dev/badge/instructions/jeffallan/writing-with-agents/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 1,629 This file is loaded in full into every session.

When invoked 1,629 The same file — it is already loaded in full.

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	$0.01629	$0.01629
Opus 5.5	$0.00652	$0.00652
Sonnet 5.5	$0.00326	$0.00326
Haiku 4.5	$0.00163	$0.00163

Measured 7d ago against content hash f875b27d10be, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

writing-with-agents CLAUDE.md 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 7d 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.md · 166 lines

How it starts

The opening of the file, as written. The whole thing — 166 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Writing With Agents — Project Configuration

This file governs Claude's behavior when working on the writing-with-agents repository.

Skill Authorship Standards

Skills follow the Agent Skills specification. This section covers project-specific conventions.

The Description Trap

Critical: Skill descriptions must be TRIGGER-ONLY. Never summarize the workflow or process.

BAD — Process in description:

description: Use for brainstorming. First generate raw material across dimensions,
then present to user for seeding, then overproduce 3-5x.

GOOD — Trigger-only:

description: Use when brainstorming ideas, generating raw material, or starting
the creative phase of a writing project.

Format: Use when [specific triggering conditions]

Frontmatter Requirements

---
name: skill-name-with-hyphens
description: Use when [triggering conditions] - max 1024 chars
license: MIT
metadata:
  author: https://github.com/Jeffallan
  company: https://synergetic.solutions
  version: "1.0.0"
  domain: generation | structure | craft | quality | strategy | seo | research
  triggers: keyword1, keyword2, keyword3
  role: specialist | expert
  scope: design | analysis | implementation
  output-format: document | report | analysis
  related-skills: architect, carpenter, judge
---

Domain values for this project: generation · structure · craft · quality · strategy · seo · research

Progressive Disclosure Architecture

Tier 1 — SKILL.md (~80-100 lines)

An H1 title (# Skill Name) directly after the frontmatter, and no other H1 outside code fences
Role definition and collaborative model (who leads, who supports)
When-to-use guidance (triggers)
Core workflow (5-7 steps)
Constraints (MUST DO / MUST NOT DO)
Routing table to references

Tier 2 — Reference Files (100-600 lines each)

Deep procedural content
Templates and output formats
Examples and anti-patterns
Loaded only when context requires

Read the full file on GitHub · 166 lines

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.

7d ago Changed · +9 lines · +238 tokens per session f875b27d10be
12d ago Changed · +2 lines · +106 tokens per session fb9b35791e68
23d ago Changed · +30 lines · +423 tokens per session 0f91a2c20905
1mo ago Changed · +1 lines · +14 tokens per session bea8109283c5
2mo ago First seen · 124 lines · 848 tokens per session scan A 0391fa9c47c6

Subscribe to this mod's changes

writing-with-agents CLAUDE.md is an instructions file published in the GitHub repository Jeffallan/writing-with-agents (37 stars, last pushed 7d ago), licensed MIT. It adds 1,629 tokens to every session, about $0.0065 per session on Opus 5.5. 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.

Writing and docs

writing-with-agents CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
writing-with-agents CLAUDE.mdJeffallan/writing-with-agents	Instructions file	37	7d ago	MIT	A	1,629	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	9,719	GitHub Copilot
next.js AGENTS.mdvercel/next.js	Instructions file	143k	yesterday	MIT	A	7,461	Codex, OpenCode
langchain AGENTS.mdlangchain-ai/langchain	Instructions file	149k	yesterday	MIT	A	4,680	Codex, OpenCode
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	5,516	GitHub Copilot
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	yesterday	MIT	A	3,093	GitHub Copilot
deepseek-harness AGENTS.mddeepseek-ai/deepseek-harness	Instructions file	274k	2d ago	MIT	A	4,313	Codex, OpenCode

writing-with-agents: Instructions file for Claude Code