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diffwarden: Instructions file for Claude Code

CLAUDE.md

diffwarden CLAUDE.md is an instructions file for Claude Code from jperocho/diffwarden. It costs 1,072 tokens per session, scanned A, original, MIT.

A set of instructions for coding agents working on diffwarden, a distributable agent skill for reviewing changes before they are merged. It explains the repository layout, editing rules, releases, and verification.

In plain words
What is it for?
Use it when editing the diffwarden playbook, its optional commands or extensions, the installer, documentation, manifests, or release metadata.
Why use it?
It tells agents which file contains the actual product and how to update related documentation and versions consistently. This helps avoid treating the repository like a normal application.

Instructions file for Claude Code

Written for Claude Code: $ARGUMENTS substitution. Also seen: mentions CLAUDE.md; mentions Claude Code; mentions AGENTS.md.

This is jperocho/diffwarden's own configuration. It tells Claude Code how to work on diffwarden 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 diffwarden configures →

not rated 7repo 2mo ago A scan 1,072 tokens original MIT
View source ↗ jperocho/diffwarden
Reuse

Borrowing it

Nothing to install: this file belongs to jperocho/diffwarden. 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/jperocho/diffwarden/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/jperocho/diffwarden

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.

agentmods badge for diffwarden CLAUDE.md

README.md
[![agentmods](https://agentmods.dev/badge/instructions/jperocho/diffwarden/claude-md/github.svg)](https://agentmods.dev/instructions/jperocho/diffwarden/claude-md)
Your own site
<a href="https://agentmods.dev/instructions/jperocho/diffwarden/claude-md"><img src="https://agentmods.dev/badge/instructions/jperocho/diffwarden/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.

agentmods 80×15 button for diffwarden CLAUDE.md

Your own site · 80×15
<a href="https://agentmods.dev/instructions/jperocho/diffwarden/claude-md"><img src="https://agentmods.dev/badge/instructions/jperocho/diffwarden/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 1,072 This file is loaded in full into every session.
When invoked 1,072 The same file — it is already loaded in full.
Security scan A 1 finding. 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.01072 $0.01072
Opus 5.5 $0.00429 $0.00429
Sonnet 5.5 $0.00214 $0.00214
Haiku 4.5 $0.00107 $0.00107

Measured 1mo ago against content hash 136a65cebc5a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

diffwarden CLAUDE.md 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 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

4. `README.md` — installer curl URL `.../diffwarden/vX.Y.Z/install.sh`
CLAUDE.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

Guidance for AI coding agents working in this repo. AGENTS.md is a symlink to this file — edit only this one.

What this repo is

A single distributable agent skill, not an application. The product is one markdown playbook: skills/diffwarden/SKILL.md. Everything else documents it. No source code, build step, or test suite.

skills/diffwarden/SKILL.md     ← the product (PR-guardian playbook)
skills/diffwarden/commands/    ← optional slash files (/dw, /diffwarden)
skills/diffwarden/prompts/     ← Pi-only prompt templates ($ARGUMENTS); not for Codex
extensions/diffwarden/         ← optional Pi extension package wrapper (/dw commands)
docs/orchestration.md          ← optional orchestration guide (human docs)
install.sh                     ← installer (Claude/Cursor/Codex/Pi; copies skill + commands/prompts)
package.json                   ← Pi/npm package manifest (pi-diffwarden)
README.md                      ← user-facing description / install / usage
CHANGELOG.md                ← release notes (Keep a Changelog + SemVer)
LICENSE                     ← MIT
CLAUDE.md / AGENTS.md       ← agent guidance (AGENTS.md symlinks CLAUDE.md)

Editing rules

  • SKILL.md is the source of truth. When it changes, update README and CHANGELOG to match.
  • Match the existing voice: terse, imperative, bullet- and code-block-driven. No marketing prose.
  • Never soften the safety stance: no auto-merge, no force-push, no blind push, no weakening CI/tests/lint/auth/secrets, no resolving human comments without explicit approval. These are the skill's core promise.
  • Keep SKILL.md frontmatter valid: name, description, version, author, license, metadata.tags, metadata.related_skills.

Version bumps (do all together)

version is duplicated in eight places — they must stay in sync:

  1. skills/diffwarden/SKILL.md frontmatter version:
  2. README.md — Current version: vX.Y.Z
  3. README.md — version badge version-X.Y.Z-blue.svg
  4. README.md — installer curl URL .../diffwarden/vX.Y.Z/install.sh
  5. README.md — Pi npm install URL npm:[email protected]
  6. install.sh — DEFAULT_REF="vX.Y.Z"
  7. package.json — "version": "X.Y.Z"
  8. CHANGELOG.md — new ## [X.Y.Z] - YYYY-MM-DD section

Read the full file on GitHub · 86 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.

  1. 1mo ago First seen · 86 lines · 1,072 tokens per session scan A 136a65cebc5a

Subscribe to this mod's changes

diffwarden CLAUDE.md is an instructions file published in the GitHub repository jperocho/diffwarden (7 stars, last pushed 2mo ago), licensed MIT. It adds 1,072 tokens to every session, about $0.0043 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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