Borrowing it
Nothing to install: this file belongs to marcusquinn/aidevops. 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/marcusquinn/aidevops/main/.agents/tools/browser/chromium-debug-use/SKILL.mdgit clone --depth 1 https://github.com/marcusquinn/aidevopsWrote 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/marcusquinn/aidevops/chromium-debug-use)<a href="https://agentmods.dev/skills/marcusquinn/aidevops/chromium-debug-use"><img src="https://agentmods.dev/badge/skills/marcusquinn/aidevops/chromium-debug-use/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/marcusquinn/aidevops/chromium-debug-use"><img src="https://agentmods.dev/badge/skills/marcusquinn/aidevops/chromium-debug-use.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00024 | $0.00520 |
| Opus 5 | $0.00012 | $0.00260 |
| Sonnet 5 | $0.00005 | $0.00104 |
| Haiku 4.5 | $0.00002 | $0.00052 |
Grade A, and why
chromium-debug-use 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 6d 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.
How it starts
The opening of the file, as written. The whole thing — 50 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chromium Debug Use
Read tools/browser/chromium-debug-use.md first.
Use This Skill When
The user wants to inspect or lightly interact with something already open in a Chromium-family browser (Chrome, Brave, Edge, Vivaldi, Chromium) before committing to a heavier automation tool.
Workflow
- Confirm explicit, user-approved live-session investigation.
- If the debug port is not yet open, have the user launch with the flag from
tools/browser/chromium-debug-use.md. - Use
.agents/scripts/chromium-debug-use-helper.sh versionandlistto confirm access. - Prefer
snapshot,html, andevalto understand the page before usingclick,type,navigate, orscreenshot. - Once the flow is understood, hand off to the best-fit longer-term tool:
tools/browser/playwright.md— repeatable isolated automationtools/browser/dev-browser.md— aidevops-managed persistent profiletools/browser/playwright.md— official extension mode for selected tabs in the user's normal browsertools/browser/chrome-devtools.md— performance, network, and console inspection
Safety
- Local-only and temporary; the user must have enabled the debug path for this investigation.
- Prefer loopback endpoints and temporary profiles.
- Do not use this path for unrelated tabs or long-lived background control.
Commands
.agents/scripts/chromium-debug-use-helper.sh version
.agents/scripts/chromium-debug-use-helper.sh list
.agents/scripts/chromium-debug-use-helper.sh snapshot <target>
.agents/scripts/chromium-debug-use-helper.sh html <target> [selector]
.agents/scripts/chromium-debug-use-helper.sh eval <target> "document.title"
.agents/scripts/chromium-debug-use-helper.sh click <target> "button.submit"
.agents/scripts/chromium-debug-use-helper.sh type <target> "hello world"
.agents/scripts/chromium-debug-use-helper.sh screenshot <target> /tmp/page.png
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.
- 6d ago Changed b27fbe12f998
- 8d ago First seen · 50 lines · 24 tokens per session scan A 27294e23d98a
chromium-debug-use is a skill published in the GitHub repository marcusquinn/aidevops (396 stars, last pushed today), licensed MIT. It adds 24 tokens to every session and 520 once invoked, about $0.0001 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 2026-09-03.
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