sonoscli

A command-line tool for controlling Sonos speakers on a local network. Sonos is a range of network-connected speakers that can play music individually or in groups.

In plain words
What is it for?
Use it to find speakers, play or stop audio, change volume, group or separate speakers, manage queues and favorites, and search supported music services.
Why use it?
It lets scripts and coding agents manage speakers without using the Sonos app. It also provides speaker discovery and status information when you need to diagnose a connection or playback problem.

Skill for Claude CodeCodex

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/understudy-ai/understudy/sonoscli
Any agent
npx skills add understudy-ai/understudy --skill sonoscli
Clone the repo
git clone --depth 1 https://github.com/understudy-ai/understudy

Made for: Claude Code, Codex.

Per session 16 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 642 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
Origin 97% copy Near-identical to another mod 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 $0.00016 $0.00642
Opus 5 $0.00008 $0.00321
Sonnet 5 $0.00003 $0.00128
Haiku 4.5 $0.00002 $0.00064

Measured yesterday against content hash 9830eed1a728, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

sonoscli 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 yesterday.

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.

Origin

This is a copy

97% identical to sonoscli — 2 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

skills/sonoscli/SKILL.md · 66 lines

What it actually says

Sonos CLI

Use sonos to control Sonos speakers on the local network.

Quick start

  • sonos discover
  • sonos status --name "Kitchen"
  • sonos play|pause|stop --name "Kitchen"
  • sonos volume set 15 --name "Kitchen"

Common tasks

  • Grouping: sonos group status|join|unjoin|party|solo
  • Favorites: sonos favorites list|open
  • Queue: sonos queue list|play|clear
  • Spotify search (via SMAPI): sonos smapi search --service "Spotify" --category tracks "query"

Notes

  • If SSDP fails, specify --ip <speaker-ip>.
  • Spotify Web API search is optional and requires SPOTIFY_CLIENT_ID/SECRET.
  • If there is an error, check the troubleshooting section and offer advice if there is a decent match.

Troubleshooting

sonos discover - no route to host

  • On error Error: write udp4 0.0.0.0:64326->239.255.255.250:1900: sendto: no route to host (Command exited with code 1)
    • Note that the port number after 0.0.0.0: is ephemeral and will change and the netmask may not match exactly either
    • The sendto: no route to host should stay consistent
  • Advise the user that in direct (no Docker sandbox) mode on Mac OS that Settings -> Privacy & Security -> Local Network will need to be enabled for the top-level host parent process of the Gateway
    • node if running via launchd
    • Terminal if running the gateway directly in the terminal
    • Visual Studio Code if running via terminal in VS Code
  • An alternative option is to use sandbox (docker container) with network access allowed for that sandbox

sonos discover - bind: operation not permitted

  • On error Error: listen udp4 0.0.0.0:0: bind: operation not permitted
  • Advise the user that they may be running via a Codex or other sandbox that does not permit network access (this can be replicated by running sonos discover within a Codex CLI session with sandbox enabled and not approving the escalation request)
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. yesterday First seen · 66 lines · 16 tokens per session scan A 9830eed1a728

Subscribe to this mod's changes

sonoscli is a skill published in the GitHub repository understudy-ai/understudy (456 stars, last pushed 2mo ago), licensed MIT. It adds 16 tokens to every session and 642 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. It is 97% identical to sonoscli, differing in 2 lines, and is treated as a copy.