Borrowing it
Nothing to install: this file belongs to diffplug/dormouse. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/diffplug/dormouse/main/.claude/skills/debug-standalone-agent-browser/SKILL.mdgit clone --depth 1 https://github.com/diffplug/dormouseWrote 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/diffplug/dormouse/debug-standalone-agent-browser)<a href="https://agentmods.dev/skills/diffplug/dormouse/debug-standalone-agent-browser"><img src="https://agentmods.dev/badge/skills/diffplug/dormouse/debug-standalone-agent-browser/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/diffplug/dormouse/debug-standalone-agent-browser"><img src="https://agentmods.dev/badge/skills/diffplug/dormouse/debug-standalone-agent-browser.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 | $0.00072 | $0.03353 |
| Opus 5.5 | $0.00029 | $0.01341 |
| Sonnet 5.5 | $0.00014 | $0.00671 |
| Haiku 4.5 | $0.00007 | $0.00335 |
Grade A, and why
debug-standalone-agent-browser 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 26d 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.
- starts a localhost HTTP/SSE bridge for browser-side `PlatformAdapter` calls, gated by a per-run token it bakes into the bridge URL the page is built against (`VITE_DORMOUSE_BROWSER_DEV_HOST`) — not into the page's own 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 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.
- 26d ago Changed · -3 lines 8bee16a04eb7
- 1mo ago Changed 92370e15ebe1
- 1mo ago Changed 67bc828570a6
- 1mo ago Changed db26a31a48fa
- 1mo ago Changed · -8 lines 8b0dbba9afd5
- 1mo ago Changed · -3 tokens per session 559c9e6b9bd3
- 1mo ago Changed f96984075a95
- 2mo ago First seen · 212 lines · 75 tokens per session scan A db9ddb26da5b
debug-standalone-agent-browser is a skill published in the GitHub repository diffplug/dormouse (5 stars, last pushed yesterday), with no licence file. It adds 72 tokens to every session and 3,353 once invoked, about $0.0003 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 2026-08-31.
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