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 agentmods add skills/bangs00/claude-media-control/prevnpx skills add Bangs00/claude-media-control --skill prevgit clone --depth 1 https://github.com/Bangs00/claude-media-controlWrote 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/bangs00/claude-media-control/prev)<a href="https://agentmods.dev/skills/bangs00/claude-media-control/prev"><img src="https://agentmods.dev/badge/skills/bangs00/claude-media-control/prev.svg" alt="Measured on agentmods" 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 | $0.00036 | $0.00201 |
| Opus 5 | $0.00018 | $0.00101 |
| Sonnet 5 | $0.00007 | $0.00040 |
| Haiku 4.5 | $0.00004 | $0.00020 |
Grade A, and why
prev scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 5d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Went to the previous track. Resulting state (JSON):
!"${CLAUDE_PLUGIN_ROOT}/scripts/media.sh" prev
Confirm to the user in one compact markdown line (not a code block): ▶︎|⏸ **<title>** — *<artist>* · <appName> (title bold, artist italic) — this is the track now playing.
- Note: many apps restart the current track on the first "previous" and only jump to the prior track on a second call — mention this if the title did not change.
- If the JSON is
null: nothing was playing to control. - If
"degraded": trueor a stderr hint appeared: add one short note pointing to/media:doctor.
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 First seen · 16 lines · 36 tokens per session scan A 708dcc1bac5d
prev is a skill published in the GitHub repository Bangs00/claude-media-control (4 stars, last pushed 1mo ago), licensed MIT. It adds 36 tokens to every session and 201 once invoked, about $0.0002 per session on Opus 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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