claude-channel-feishu: Instructions file for Claude Code

CLAUDE.md

claude-channel-feishu CLAUDE.md is an instructions file for Claude Code from AnInteger/claude-channel-feishu. It costs 919 tokens per session, scanned A, original, Apache-2.0.

A repository instruction file for a Feishu channel plug-in, where Feishu (also called Lark) is a messaging service. It explains how the plug-in connects Claude Code to Feishu and how to run it.

In plain words
What is it for?
It is for developing and operating the bridge between Claude Code and Feishu chats, including message handling and permission requests.
Why use it?
It provides the project context, setup commands, environment settings, and access-control rules an agent needs before making changes.

Instructions file for Claude Code

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

This is AnInteger/claude-channel-feishu's own configuration. It tells Claude Code how to work on claude-channel-feishu 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-channel-feishu configures →

Reuse

Borrowing it

Nothing to install: this file belongs to AnInteger/claude-channel-feishu. 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/AnInteger/claude-channel-feishu/main/CLAUDE.md
Clone the repo
git clone --depth 1 https://github.com/AnInteger/claude-channel-feishu

Made for: Claude Code.

Wrote this? Show the measurements

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README.md
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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.

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Per session 919 This file is loaded in full into every session.
When invoked 919 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 $0.00919 $0.00919
Opus 5.5 $0.00368 $0.00368
Sonnet 5.5 $0.00184 $0.00184
Haiku 4.5 $0.00092 $0.00092

Measured 2mo ago against content hash 0e50f0e1383f, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

claude-channel-feishu 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 · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 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.

项目概述

Feishu Channel - Claude Code 的飞书 (Feishu/Lark) 通道插件,实现双向消息桥接。

核心功能:

  • 通过飞书私聊和群聊与 Claude Code 交互
  • 内置访问控制:配对流程、白名单、策略管理
  • WebSocket 长连接模式:本地开发无需公网 IP
  • 权限请求转发:将 Claude Code 的权限请求推送到飞书让用户批准

常用命令

# 安装依赖
bun install

# 启动服务 (开发)
bun server.ts

# 启动服务 (生产)
bun run start

环境变量

FEISHU_APP_ID=cli_xxxxx      # 必需:飞书应用 ID
FEISHU_APP_SECRET=xxxxx      # 必需:飞书应用密钥
FEISHU_ENCRYPT_KEY=          # 可选:事件解密密钥
FEISHU_DOMAIN=feishu         # "feishu" (国内) 或 "lark" (国际版)
FEISHU_ACCESS_MODE=dynamic   # "dynamic" (默认) 或 "static"

架构

┌─────────────────────────────────────────────────────┐
│  Claude Code                                         │
│  └── MCP Client (stdio)                             │
└─────────────────────┬───────────────────────────────┘
                      │ stdin/stdout
┌─────────────────────▼───────────────────────────────┐
│  server.ts (单文件架构)                              │
│  ├── MCP Server (tools, notifications)              │
│  ├── Access Control (pairing, allowlist)            │
│  ├── Permission Relay (请求转发)                     │
│  └── Feishu WebSocket Client                        │
└─────────────────────┬───────────────────────────────┘
                      │ WebSocket
┌─────────────────────▼───────────────────────────────┐
│  飞书服务器                                          │
│  └── Message Events                                 │
└─────────────────────────────────────────────────────┘

核心组件 (server.ts)

MCP Tools (3 个)

Tool 描述
reply_to_feishu 发送消息到飞书聊天
reply_with_reaction_feishu 添加表情反应
manage_feishu_access 管理访问控制 (list/pair/allow/remove/policy/group_add 等)

访问控制

配置文件:~/.claude/channels/feishu/access.json

策略 行为
pairing (默认) 未知用户收到配对码,丢弃消息
allowlist 静默丢弃未知用户消息
disabled 丢弃所有私聊

群组默认关闭,需要用 /feishu:access group add <chat_id> 启用。

Read the full file on GitHub · 107 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. 2mo ago First seen · 107 lines · 919 tokens per session scan A 0e50f0e1383f

Subscribe to this mod's changes

claude-channel-feishu CLAUDE.md is an instructions file published in the GitHub repository AnInteger/claude-channel-feishu (6 stars, last pushed 7mo ago), licensed Apache-2.0. It adds 919 tokens to every session, about $0.0037 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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