What is claude-dev-framework CLAUDE.md?

A set of instructions for using the Claude Dev Framework (CDF) with Claude Code, an AI coding assistant. It defines the assistant’s role, project rules, development workflow, and quality checks.

Use it to generate project rules, implement features, run tests, and perform checks before opening a pull request.

It gives the coding assistant consistent guidance about how to work in a codebase, so important steps such as writing tests and checking changes are less likely to be missed.

How drag88/claude-dev-framework configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to drag88/claude-dev-framework. 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/drag88/claude-dev-framework/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/drag88/claude-dev-framework

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

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Your own site

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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

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Per session 1,158 This file is loaded in full into every session.

When invoked 1,158 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	$0.01158	$0.01158
Opus 5.5	$0.00463	$0.00463
Sonnet 5.5	$0.00232	$0.00232
Haiku 4.5	$0.00116	$0.00116

Measured 2mo ago against content hash c83dc6afb30d, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-dev-framework 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 · 103 lines

How it starts

The opening of the file, as written. The whole thing — 103 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CDF (Claude Dev Framework)

Role

You are a senior platform engineer working on CDF, a Claude Code plugin that provides slash commands, specialized agents, auto-invoked skills, and lifecycle hooks for reproducible engineering workflows. You ship clean, opinionated tooling that other developers depend on across machines.

Overview

Claude Code plugin providing commands, agents, skills, and lifecycle hooks that give Claude codebase memory, specialized expertise, and reproducible workflows.

Quick Start

claude --plugin-dir .         # Run with plugin
/cdf:rules generate           # Generate project rules
/cdf:implement "feature"      # Implement a feature
/cdf:test                     # Run tests
/cdf:verify --mode pre-pr     # Pre-PR quality check

Critical Rules

No backwards compat - delete deprecated code immediately
Tests required - no feature complete without tests

Workflow

See @rules-templates/workflow-template.md for workflow rules, subagent strategy, verification gates, self-improvement loop, and core principles. (CDF dogfoods its own template.)

Model Routing

Fable 5 (max reasoning) is the orchestrator: plan, decompose, synthesize. Keep its context lean — delegate the heavy lifting. If Fable is unavailable, Opus orchestrates.

Deep reasoning → subagent on Opus: architecture, complex debugging, algorithm design.
Mechanical work → subagent on Sonnet: boilerplate, tests, formatting, simple edits.
Peer engineer → Codex (codex exec, run synchronously): independent adversarial review before any commit gate.
High-stakes decisions → task Opus and Codex on the same problem in parallel, without showing either the other's answer, then synthesize.

Communication

Communication style: follows the user-level CLAUDE.md (plain simple English, answer first).

CDF tools available

CDF is the project being developed here. When working on it, reach for these:

CE-first routes

Need	CDF route	CE skill
Ideation	(no wrapper — invoke the skill directly)	`compound-engineering:ce-ideate`
Requirements discovery	`/cdf:brainstorm`	`compound-engineering:ce-brainstorm`
Design or plan	`/cdf:design`, `/cdf:docs plan`	`compound-engineering:ce-plan`
Pre-approval review	`/cdf:plan-review`	`compound-engineering:ce-doc-review`
Implementation	`/cdf:implement`	`compound-engineering:ce-work`
Debugging	`/cdf:troubleshoot`	`compound-engineering:ce-debug`
Git commit	`/cdf:git commit`	`compound-engineering:ce-commit`
Ship review and PR	`/cdf:ship`	`compound-engineering:ce-code-review`, `compound-engineering:ce-commit-push-pr`

Read the full file on GitHub · 103 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 · 103 lines · 1,158 tokens per session scan A c83dc6afb30d

Subscribe to this mod's changes

claude-dev-framework CLAUDE.md is an instructions file published in the GitHub repository drag88/claude-dev-framework (2 stars, last pushed 3mo ago), licensed MIT. It adds 1,158 tokens to every session, about $0.0046 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.

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claude-dev-framework: Instructions file for Claude Code