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claude-code-router-next: Instructions file for Claude Code

CLAUDE.md

claude-code-router-next CLAUDE.md is an instructions file for Claude Code from xiaoliu10/claude-code-router-next. It costs 2,728 tokens per session, scanned A, original, MIT.

Project instructions for Claude Code Router Next, a tool that sends coding-agent requests to different language-model providers. The project is a monorepo, meaning several related packages are kept in one repository.

In plain words
What is it for?
Use them when working on the command-line tool, routing server, shared utilities, web interface, provider routing, project settings, custom routers, or built-in background and thinking scenarios.
Why use it?
They give the agent the project structure and routing rules needed to change the correct package or understand how requests are selected and transformed.

Instructions file for Claude Code

Written for Claude Code: the file is CLAUDE.md. Also seen: reads .claude/ paths; mentions CLAUDE.md; mentions subagents.

This is xiaoliu10/claude-code-router-next's own configuration. It tells Claude Code how to work on claude-code-router-next 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 claude-code-router-next configures →

not rated 12repo yesterday A scan 2,728 tokens original MIT
View source ↗ xiaoliu10/claude-code-router-next
Reuse

Borrowing it

Nothing to install: this file belongs to xiaoliu10/claude-code-router-next. 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/xiaoliu10/claude-code-router-next/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/xiaoliu10/claude-code-router-next

Made for: Claude Code.

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README.md
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Per session 2,728 This file is loaded in full into every session.
When invoked 2,728 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.02728 $0.02728
Opus 5.5 $0.01091 $0.01091
Sonnet 5.5 $0.00546 $0.00546
Haiku 4.5 $0.00273 $0.00273

Measured 1mo ago against content hash edbfcc07d2b6, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-code-router-next 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 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.

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 · 220 lines

How it starts

The opening of the file, as written. The whole thing — 220 lines — stays where its author put it; the contents beside it link to each section on GitHub.

CLAUDE.md

This file provides guidance to Claude Code (claude.ai/code) when working with code in this repository.

Project Overview

Claude Code Router is a tool that routes Claude Code requests to different LLM providers. It uses a Monorepo architecture with four main packages:

  • cli (@wengine-ai/claude-code-router-cli): Command-line tool providing the ccr command
  • server (@wengine-ai/claude-code-router-server): Core server handling API routing and transformations
  • shared (@wengine-ai/claude-code-router-shared): Shared constants, utilities, and preset management
  • ui (@wengine-ai/claude-code-router-ui): Web management interface (React + Vite)

Core Architecture

1. Routing System (packages/server/src/utils/router.ts)

The routing logic determines which model a request should be sent to:

  • Default routing: Uses Router.default configuration
  • Project-level routing: Checks ~/.claude/projects/<project-id>/claude-code-router.json
  • Custom routing: Loads custom JavaScript router function via CUSTOM_ROUTER_PATH
  • Built-in scenario routing:
    • background: Background tasks (typically lightweight models)
    • think: Thinking-intensive tasks (Plan Mode)
    • longContext: Long context (exceeds longContextThreshold tokens)
    • webSearch: Web search tasks
    • image: Image-related tasks

Token calculation uses tiktoken (cl100k_base) to estimate request size.

2. Transformer System

The project uses the @wengine-ai/llms package (external dependency) to handle request/response transformations. Transformers adapt to different provider API differences:

  • Built-in transformers: anthropic, deepseek, gemini, openrouter, groq, maxtoken, tooluse, reasoning, enhancetool, etc.
  • Custom transformers: Load external plugins via transformers array in config.json

Transformer configuration supports:

  • Global application (provider level)
  • Model-specific application
  • Option passing (e.g., max_tokens parameter for maxtoken)

Read the full file on GitHub · 220 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 · 220 lines · 2,728 tokens per session scan A edbfcc07d2b6

Subscribe to this mod's changes

claude-code-router-next CLAUDE.md is an instructions file published in the GitHub repository xiaoliu10/claude-code-router-next (12 stars, last pushed yesterday), licensed MIT. It adds 2,728 tokens to every session, about $0.0109 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.

Building agentsClaude Codeclaude-code-routercodexdeepseekgeminillm-router
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