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flagship: Instructions file for Claude Code

CLAUDE.md

flagship CLAUDE.md is an instructions file for Claude Code from riffcc/flagship. It costs 3,575 tokens per session, scanned A, original, AGPL-3.0.

A project-specific instruction file for Claude Code, an AI coding assistant. It describes the repository, its important commands, and how to develop and build it.

In plain words
What is it for?
It helps Claude Code understand a project's structure, run its commands, and follow its development and build process.
Why use it?
It gives the coding assistant the context and working rules needed to make changes in the right way.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md.

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

not rated 13repo 7mo ago A scan 3,575 tokens AGPL-3.0
View source ↗ riffcc/flagship dev.riff.cc
Reuse

Borrowing it

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

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 flagship CLAUDE.md

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

Your own site · 80×15
<a href="https://agentmods.dev/instructions/riffcc/flagship/claude-md"><img src="https://agentmods.dev/badge/instructions/riffcc/flagship/claude-md.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 3,575 This file is loaded in full into every session.
When invoked 3,575 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 unknown 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 $0.03575 $0.03575
Opus 5.5 $0.01430 $0.01430
Sonnet 5.5 $0.00715 $0.00715
Haiku 4.5 $0.00358 $0.00358

Measured 2mo ago against content hash d0fa7e35d6a5, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

flagship 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 · 351 lines

The source is not reproduced here

Licensed AGPL-3.0

The repository is licensed AGPL-3.0, which this catalogue does not treat as permission to reproduce the file. Read it at the source.

Read it on GitHub

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. 2mo ago First seen · 351 lines · 3,575 tokens per session scan A d0fa7e35d6a5

Subscribe to this mod's changes

flagship CLAUDE.md is an instructions file published in the GitHub repository riffcc/flagship (13 stars, last pushed 7mo ago), licensed AGPL-3.0. It adds 3,575 tokens to every session, about $0.0143 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.

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