What is codeforges-claude-plugin CLAUDE.md?

Development instructions for the cf-dev-toolkit Claude Code plugin, which provides focused sub-agents for software development work. The instructions cover agent descriptions, checking real method signatures, reading files appropriately, and avoiding unsupported assumptions.

Use it when developing or modifying the plugin, especially its agents, trigger descriptions, file-reading behavior, and verification rules.

They address common workflow problems such as missing context, losing focus, and proposing code based on guessed interfaces. They also require agents to verify their findings before suggesting changes.

How rubenCodeforges/codeforges-claude-plugin configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to rubenCodeforges/codeforges-claude-plugin. 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/rubenCodeforges/codeforges-claude-plugin/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/rubenCodeforges/codeforges-claude-plugin

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/rubencodeforges/codeforges-claude-plugin/claude-md/github.svg)](https://agentmods.dev/instructions/rubencodeforges/codeforges-claude-plugin/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/rubencodeforges/codeforges-claude-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/rubencodeforges/codeforges-claude-plugin/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/rubencodeforges/codeforges-claude-plugin/claude-md"><img src="https://agentmods.dev/badge/instructions/rubencodeforges/codeforges-claude-plugin/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 2,014 This file is loaded in full into every session.

When invoked 2,014 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	$0.02014	$0.02014
Opus 5.5	$0.00806	$0.00806
Sonnet 5.5	$0.00403	$0.00403
Haiku 4.5	$0.00201	$0.00201

Measured 2mo ago against content hash 3da144ebbace, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

codeforges-claude-plugin 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 2mo 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 · 278 lines

How it starts

The opening of the file, as written. The whole thing — 278 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Claude Code Plugin Development Guide

This file contains instructions for Claude Code when working on this plugin.

Plugin Purpose

cf-dev-toolkit is a daily development workflow plugin that solves Claude Code's tendency to:

Read only 20-30 lines and miss context
Lose focus on complex tasks
Make assumptions about method signatures
Get overwhelmed by real-world development work

It provides specialized sub-agents with separate context windows that stay focused, understand complete context, and verify before suggesting code.

Important Rules

When Modifying Agents

Keep Proactive Keywords
- Always include MUST BE USED and USE PROACTIVELY in descriptions
- These trigger automatic invocation based on user's natural language
Verification First
- All agents must check actual method signatures before suggesting code
- No assumptions - always read implementations
Smart Reading Strategy
- Files < 1000 lines: Read completely
- Files > 1000 lines: Strategic reading (imports, exports, key sections) + Grep
- Never say "I only read X lines" without justification
No Hard-Coded Numbers
- Don't mention "7 agents" or "3 skills" in descriptions
- Plugin may grow - keep descriptions version-agnostic

File Structure

cf-dev-toolkit/
├── .claude-plugin/
│   └── marketplace.json      # Marketplace config (name, owner, plugins)
├── manifest.json             # Plugin manifest (agents, skills, commands)
├── agents/                   # Sub-agent definitions (.md files)
├── skills/                   # Auto-loading knowledge (.md files)
├── commands/                 # Slash commands (.md files)
├── LICENSE                   # MIT license
├── .gitignore               # Git exclusions
├── CONTRIBUTING.md          # Contribution guidelines
├── README.md                # User-facing documentation
└── CLAUDE.md                # This file (for Claude Code)

Naming Conventions

Plugin name: cf-dev-toolkit (not "code-analysis-toolkit")
Author: codeforges (or cf for short)
Owner: codeforges in marketplace.json

Read the full file on GitHub · 278 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.

2mo ago First seen · 278 lines · 2,014 tokens per session scan A 3da144ebbace

Subscribe to this mod's changes

codeforges-claude-plugin CLAUDE.md is an instructions file published in the GitHub repository rubenCodeforges/codeforges-claude-plugin (3 stars, last pushed 11mo ago), licensed MIT. It adds 2,014 tokens to every session, about $0.0081 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 2026-08-31.

Building agents ai-agents ai-code-review ai-developer-tools ai-development claude-agents claude-ai

codeforges-claude-plugin CLAUDE.md next to 6 instructions from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
codeforges-claude-plugin CLAUDE.mdrubenCodeforges/codeforges-claude-plugin	Instructions file	3	11mo ago	MIT	A	2,014	Claude Code
vscode buildNext.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	9,719	GitHub Copilot
vscode oss-third-party-notices.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	5,516	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	today	MIT	A	4,680	Codex, OpenCode
vscode copilot-instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	3,093	GitHub Copilot
vscode model-prompts.instructions.mdmicrosoft/vscode	Instructions file	195k	today	MIT	A	2,022	GitHub Copilot

codeforges-claude-plugin: Instructions file for Claude Code