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.
npx skills add ad-repo/nullplayer --skill sonos-castinggit clone --depth 1 https://github.com/ad-repo/nullplayerWrote 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.
[](https://agentmods.dev/skills/ad-repo/nullplayer/sonos-casting)<a href="https://agentmods.dev/skills/ad-repo/nullplayer/sonos-casting"><img src="https://agentmods.dev/badge/skills/ad-repo/nullplayer/sonos-casting/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.
<a href="https://agentmods.dev/skills/ad-repo/nullplayer/sonos-casting"><img src="https://agentmods.dev/badge/skills/ad-repo/nullplayer/sonos-casting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00061 | $0.09668 |
| Opus 5.5 | $0.00024 | $0.03867 |
| Sonnet 5.5 | $0.00012 | $0.01934 |
| Haiku 4.5 | $0.00006 | $0.00967 |
Grade A, and why
sonos-casting scanned grade A with 1 finding 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 5d 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.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
1. Verify AVTransport URL is accessible: `curl http://{ip}:1400/xml/device_description.xml` The source is not reproduced here
A licence we could not identify
The repository carries a LICENSE file, but it is custom or dual enough that GitHub cannot name it and neither can this catalogue. Unknown terms are not permission, so the body is not copied here. Read the licence at the source and decide for yourself.
What ships with it
1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 5d ago Changed · +10 lines 0d3fb239e3d2
- 7d ago Changed · +2 lines a8baa5cb7892
- 20d ago Changed b3cdb1a5256e
- 22d ago Changed · +4 lines e1a3fcf5c482
- 26d ago Changed · +1 lines f3cd364cbc8d
- 27d ago Changed 5fb4d1fb03b6
- 1mo ago Changed · +10 lines 2de23c73516d
- 1mo ago Changed · +29 lines c1e9fd25ee17
- 1mo ago Changed · +9 lines 9171d44471b1
- 1mo ago First seen · 596 lines · 61 tokens per session scan A c9ab28d399cc
sonos-casting is a skill published in the GitHub repository ad-repo/nullplayer (178 stars, last pushed yesterday), with no licence file. It adds 61 tokens to every session and 9,668 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.
sonos-casting compared with skills from other repositories
| Mod | Type | Stars | Last push | Licence | Scan | Tokens | Works with |
|---|---|---|---|---|---|---|---|
| sonos-castingad-repo/nullplayer | Skill | 178 | yesterday | none | A | 61 | Claude Code, Codex |
| gke-compute-classesgoogle/skills | Skill | 22k | yesterday | Apache-2.0 | A | 83 | Claude Code, Codex |
| jetson-diagnosticNVIDIA/skills | Skill | 3.9k | yesterday | Apache-2.0 | A | 30 | Claude Code, Codex |
| holoscan-install-wheelNVIDIA/skills | Skill | 3.9k | yesterday | Apache-2.0 | A | 34 | Claude Code, Codex |
| offensive-z-waveSnailSploit/Claude-Red | Skill | 10k | 25d ago | MIT | A | 113 | Claude Code, Codex |
| doca-socket-relayNVIDIA/skills | Skill | 3.9k | yesterday | Apache-2.0 | A | 236 | Claude Code, Codex |
| hsb-flashNVIDIA/skills | Skill | 3.9k | yesterday | Apache-2.0 | B | 94 | Claude Code |