ego lite is a browser built for people and AI agents to use at the same time, letting agents work with the user's existing tabs, logins, cookies, extensions, and bookmarks. It supports browser automation tasks for agents such as Codex and Claude Code, with agents working in separate Spaces while the user keeps control of their tabs. The catalogue entry provides the ego-browser skill for operating it.
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 citrolabs/ego-lite --skill ego-browsergit clone --depth 1 https://github.com/citrolabs/ego-liteWrote 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/citrolabs/ego-lite/ego-browser)<a href="https://agentmods.dev/skills/citrolabs/ego-lite/ego-browser"><img src="https://agentmods.dev/badge/skills/citrolabs/ego-lite/ego-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/citrolabs/ego-lite/ego-browser"><img src="https://agentmods.dev/badge/skills/citrolabs/ego-lite/ego-browser.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- Socket pass
- Snyk warn
- 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 | $0.00125 | $0.00377 |
| Opus 5.5 | $0.00050 | $0.00151 |
| Sonnet 5.5 | $0.00025 | $0.00075 |
| Haiku 4.5 | $0.00013 | $0.00038 |
Grade A, and why
ego-browser scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
ego-browser
Before any browser task, run:
ego-browser skill
and follow its output. It prints the usage guide that matches the installed
ego lite version. Run it again after ego-browser upgrade, or when any output
says to.
The guide ends with a line starting [ego-browser:skill] end of guide. If that
line is missing, the output was truncated: save it to a file and read the file
in parts, for example ego-browser skill > "$TMPDIR/ego-browser-skill.md", or
ego-browser skill > "$env:TEMP\ego-browser-skill.md" in PowerShell.
References
- Install or upgrade ego lite — read when
ego-browseris not found, orskillis an unknown command. - Clearing cookies, cache, and storage — read before clearing any cookie, cache, or storage; some clears reach the whole browser profile.
What ships with it
21 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.
- agents/openai.yaml 271 B
- assets/composer-icon.png 3.9 KB
- assets/logo.png 8.4 KB
- learnings/github/browser-tools/repo-stats.js 579 B runs code
- learnings/github/manifest.json 1.6 KB
- learnings/github/notes/overview.md 880 B
- learnings/github/tools/open-issues.js 987 B runs code
- learnings/github/tools/search-repos.js 1.2 KB runs code
- learnings/google/browser-tools/autocomplete.js 373 B runs code
- learnings/google/manifest.json 1.1 KB
- learnings/google/notes/overview.md 667 B
- learnings/google/tools/search-extract.js 1.0 KB runs code
- learnings/x-com/browser-tools/extract-post.js 458 B runs code
- learnings/x-com/manifest.json 1.4 KB
- learnings/x-com/notes/overview.md 777 B
- learnings/x-com/notes/timeline.md 618 B
- learnings/x-com/tools/search-users.js 800 B runs code
- learnings/x-com/tools/timeline.js 934 B runs code
- references/clearing-state.md 4.0 KB
- references/install.md 4.4 KB
- scripts/install.sh 5.9 KB runs code
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.
- 8d ago Changed · -441 lines ae3ebd9a80c8
- 1mo ago Changed · +265 lines · -85 tokens per session 9402bf03db89
- 1mo ago First seen · 210 lines · 210 tokens per session scan A 5a758c339332
ego-browser is a skill published in the GitHub repository citrolabs/ego-lite (19,288 stars, last pushed 2d ago), licensed MIT. It adds 125 tokens to every session and 377 once invoked, about $0.0005 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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