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Cyber Horn

Name: Cyber Horn
Author: richerlv

作者 Richerlv · GitHub ↗ · v1.0.3 · MIT-0

linuxdarwinwin32 ✓ 安全检测通过

367

总下载

当前安装

版本数

在 OpenClaw 中安装

/install cyber-horn

功能描述

Turn text into spoken Feishu (Lark) voice messages. Use when the agent should speak in a Feishu group, send voice alerts or announcements, or reply with a pl...

使用说明 (SKILL.md)

CyberHorn (赛博小喇叭)

Let OpenClaw speak in Feishu: turn any text into a native voice message (not a file link) in a Feishu chat.

When to use

The user asks to "say something in Feishu" or "send a voice message to the group".
The agent should announce or alert via voice in a Feishu room.
You want replies as playable voice notes instead of text bubbles.

How it works

TTS — Text is synthesized with Edge TTS (default, no API key) or ElevenLabs (custom voices). Set TTS_PROVIDER=EDGE or ELEVEN in .env.
Encode — Audio is converted to Opus (mono 16 kHz) via FFmpeg for Feishu’s voice message format.
Send — The file is uploaded to Feishu and sent as a voice message to the given chat.

Setup

Required (all modes): FEISHU_APP_ID, FEISHU_APP_SECRET in .env or OpenClaw config. FFmpeg must be on PATH or set FFMPEG_PATH.
Optional default target chat: FEISHU_DEFAULT_CHAT_ID can be set in .env so you don't have to pass a chat ID every time.
Edge TTS (default): No extra keys. Optional EDGE_VOICE (e.g. zh-CN-XiaoxiaoNeural).
ElevenLabs: Set TTS_PROVIDER=ELEVEN, and add ELEVEN_API_KEY, VOICE_ID.

Invocation

From the skill directory (or with PYTHONPATH set):

python main.py "\x3Ctext to speak>" "[feishu_chat_id]" [receive_id_type]

Arg 1: Text to speak.
Arg 2 (optional): Feishu chat ID (or other receive_id). If omitted, the skill will use FEISHU_DEFAULT_CHAT_ID from .env when available.
Arg 3 (optional): receive_id_type, default chat_id (can be open_id etc. per Feishu API).

OpenClaw can call this with env vars injected and the same two (or three) arguments.

安全使用建议

This skill appears to do what it says: synthesize TTS and send native Feishu voice messages. Before installing: (1) provide FEISHU_APP_ID/FEISHU_APP_SECRET only for an app you control and limit that app's scopes (it can send messages wherever permitted); (2) if using ElevenLabs, only supply ELEVEN_API_KEY if you trust the voice cloning usage; (3) install dependencies in a virtualenv and review requirements.txt for packages you wish to allow; (4) confirm ffmpeg is a trusted binary on PATH; (5) be aware the agent (if invoked) can send voice messages to any receive_id the app is permitted to message. If you want extra assurance, review the code (especially feishu_client.py and audio_engine.py) and run tests locally with test scripts before granting this skill access to production credentials.

功能分析

Type: OpenClaw Skill Name: cyber-horn Version: 1.0.3 The CyberHorn skill is designed to convert text to speech and send it as a native voice message to Feishu (Lark). The code follows security best practices by using subprocess argument lists to prevent shell injection in audio_engine.py and utilizes standard, well-known libraries (requests, edge-tts, elevenlabs) for its core functionality. There is no evidence of data exfiltration, unauthorized credential access, or malicious prompt injection; all operations are consistent with the documented purpose of the skill.

能力评估

✓ Purpose & Capability

Name/description (TTS → Feishu voice messages) aligns with required items: ffmpeg for encoding, FEISHU_APP_ID/FEISHU_APP_SECRET for API calls, optional ElevenLabs credentials for alternate TTS. The declared primary credential and required binaries are appropriate for the stated functionality.

✓ Instruction Scope

SKILL.md and code instruct only to load .env, synthesize audio (Edge or ElevenLabs), transcode via ffmpeg, upload to Feishu, and send a voice message. The runtime steps and files accessed are limited to temp audio files and declared env vars; there are no instructions to read unrelated system files or to post data to unexpected external endpoints.

ℹ Install Mechanism

This is instruction-only for OpenClaw (no platform install spec). The repository includes a requirements.txt with expected TTS and HTTP libraries (edge-tts, elevenlabs, requests, etc.). Nothing is downloaded from arbitrary URLs, but the dependency list is non-trivial — audit and install in a virtual environment.

ℹ Credentials

Requested env vars (FEISHU_APP_ID, FEISHU_APP_SECRET, optional ELEVEN_API_KEY/VOICE_ID, EDGE settings) are consistent with functionality. However FEISHU_APP_SECRET is powerful (allows sending messages using the app); ensure the provided Feishu app has minimal necessary scopes and is trusted. ElevenLabs keys are optional and only needed if that provider is selected.

✓ Persistence & Privilege

Skill does not request persistent 'always' inclusion and does not modify other skills or system-wide configs. It runs as a script, cleans up temp files, and uses only its own config.

如何使用

确保已安装 OpenClaw（本地或 Docker 部署）
在对话框中输入安装命令：/install cyber-horn
安装完成后，直接呼叫该 Skill 的名称或使用 /cyber-horn 触发
根据 Skill 的参数说明提供必要输入，即可获得结构化输出

版本历史

v1.0.3

- Added support for FEISHU_DEFAULT_CHAT_ID: you can now set a default chat ID in the environment and omit the chat ID argument when invoking the skill. - Invocation instructions updated: chat ID argument is now optional if FEISHU_DEFAULT_CHAT_ID is set. - Clarified setup and usage in documentation.

v1.0.2

Version 1.0.2 of cyber-horn - By default, chat_id is read from .env .

v1.0.1

- Compatible with Mac & Linux

v1.0.0

CyberHorn turns OpenClaw into a voice: say something in chat, and it shows up in Feishu (Lark) as a real voice message — not a text bubble, not a file link, a playable voice note. What’s new Dual TTS engines — Use Edge TTS (free, no API key) by default, or ElevenLabs for custom voices. Set TTS_PROVIDER=EDGE or ELEVEN in .env. Feishu-native voice — Text → TTS → Opus → upload → send as Feishu voice message. No workarounds, no “open in browser.” One command to speak — python main.py "要说的内容" "CHAT_ID". Same flow for OpenClaw: your agent can now read out updates, alerts, or replies in Feishu. Local-first config — API keys and TTS_PROVIDER live in your .env; nothing sensitive is shipped with the skill. Quick start Install the skill (from ClawHub). Add your Feishu app credentials (and optionally ElevenLabs keys) to .env. Run main.py with your text and Feishu chat ID, or wire it into OpenClaw so the agent sends voice messages when it “speaks.” OpenClaw isn’t just typing anymore — it’s talking.

元数据

Slug cyber-horn

版本 1.0.3

许可证 MIT-0

累计安装 0

当前安装数 0

历史版本数 4

常见问题

Cyber Horn 是什么？

Turn text into spoken Feishu (Lark) voice messages. Use when the agent should speak in a Feishu group, send voice alerts or announcements, or reply with a pl... 它是一个面向 Claude Code / OpenClaw 的 AI Agent Skill 插件，目前累计下载 367 次。

如何安装 Cyber Horn？

在 OpenClaw 或 Claude Code 对话框中运行命令「/install cyber-horn」即可一键安装，无需额外配置。

Cyber Horn 是免费的吗？

是的，Cyber Horn 完全免费，采用 MIT-0 许可证，可自由下载、安装和使用。

Cyber Horn 支持哪些平台？

Cyber Horn 跨平台运行，可在任意部署了 OpenClaw / Claude Code 的环境中使用（linux, darwin, win32）。

谁开发了 Cyber Horn？

由 Richerlv（@richerlv）开发并维护，当前版本 v1.0.3。