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 TheGoat395/Codex-Skills --skill cross-browser-qagit clone --depth 1 https://github.com/TheGoat395/Codex-SkillsWrote 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/thegoat395/codex-skills/cross-browser-qa)<a href="https://agentmods.dev/skills/thegoat395/codex-skills/cross-browser-qa"><img src="https://agentmods.dev/badge/skills/thegoat395/codex-skills/cross-browser-qa/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/thegoat395/codex-skills/cross-browser-qa"><img src="https://agentmods.dev/badge/skills/thegoat395/codex-skills/cross-browser-qa.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 | $0.00010 | $0.00254 |
| Opus 5.5 | $0.00004 | $0.00102 |
| Sonnet 5.5 | $0.00002 | $0.00051 |
| Haiku 4.5 | $0.00001 | $0.00025 |
Grade A, and why
cross-browser-qa 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 1mo 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
Cross Browser QA
Use this skill to catch browser-specific issues that one local Chromium pass will miss.
Workflow
- Inspect the affected surface, relevant project scripts, target URL and available inspection tooling; reuse existing context.
- Read Cross Browser QA Guide before claiming the site is ready.
- Compare the affected path across the supported available engines, concentrating on changed CSS, focus, scrolling, media and input behavior. Record engine/version and unavailable coverage.
- Fix issues when they are in scope; otherwise record exact evidence and remaining risk.
- Summarize commands, URLs, screenshots/checks, changed files, and what was not tested.
Scoped execution
Apply the shared web contract once when execution crosses phases; reuse it if already read. Load only the specialist guidance relevant to the requested surface and deliverable.
Scope and evidence
Record browser engine, version, OS, viewport and tested core path. Playwright WebKit is WebKit evidence, not actual Safari or real-device certification. Mark unavailable browsers untested.
What ships with it
2 files 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.
- 1mo ago Changed 5e64e8017e2c
- 1mo ago Changed · -3 lines · -53 tokens per session bd16e95aef2c
- 1mo ago First seen · 28 lines · 63 tokens per session scan A 593eea3281e9
cross-browser-qa is a skill published in the GitHub repository TheGoat395/Codex-Skills (132 stars, last pushed 2d ago), licensed MIT. It adds 10 tokens to every session and 254 once invoked, about $0.0000 per session on Opus 5.5. 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 2026-08-30.
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