A command-line browser automation tool that lets an agent navigate and interact with websites through a real browser.

Use it to open websites, fill in forms, click buttons, take screenshots, extract information, test web applications, and automate browser workflows.

It makes browser tasks repeatable and provides compact page information for finding and operating controls. It can also support testing and data extraction.

tomo-browse — Skill for Claude Code and Codex by shuaiyuan17

Install

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.

Any agent

npx skills add shuaiyuan17/tomo --skill browse

Clone the repo

git clone --depth 1 https://github.com/shuaiyuan17/tomo

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/shuaiyuan17/tomo/browse/github.svg)](https://agentmods.dev/skills/shuaiyuan17/tomo/browse)

Your own site

<a href="https://agentmods.dev/skills/shuaiyuan17/tomo/browse"><img src="https://agentmods.dev/badge/skills/shuaiyuan17/tomo/browse/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/shuaiyuan17/tomo/browse"><img src="https://agentmods.dev/badge/skills/shuaiyuan17/tomo/browse.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 202 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 496 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin 83% copy Near-identical to another mod in the catalogue.

Token cost

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	$0.00202	$0.00496
Opus 5	$0.00101	$0.00248
Sonnet 5	$0.00040	$0.00099
Haiku 4.5	$0.00020	$0.00050

Measured 11d ago against content hash fcb33d0c9e85, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

tomo-browse 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 11d 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.

Origin

This is a copy

83% identical to agent-browser — 31 lines differ, which has more behind it and is treated as the original. This page carries a canonical link to it rather than competing with it.

defaults/skills/browse/SKILL.md · 41 lines

What it actually says

agent-browser

Fast browser automation CLI for AI agents. Chrome/Chromium via CDP with accessibility-tree snapshots and compact @eN element refs.

Install: npm i -g agent-browser && agent-browser install

Start here

This file is a discovery stub, not the usage guide. Before running any agent-browser command, load the actual workflow content from the CLI:

agent-browser skills get core             # start here — workflows, common patterns, troubleshooting
agent-browser skills get core --full      # include full command reference and templates

The CLI serves skill content that always matches the installed version, so instructions never go stale. The content in this stub cannot change between releases, which is why it just points at skills get core.

Specialized skills

Load a specialized skill when the task falls outside browser web pages:

agent-browser skills get electron          # Electron desktop apps (VS Code, Slack, Discord, Figma, ...)
agent-browser skills get slack             # Slack workspace automation
agent-browser skills get dogfood           # Exploratory testing / QA / bug hunts
agent-browser skills get vercel-sandbox    # agent-browser inside Vercel Sandbox microVMs
agent-browser skills get agentcore         # AWS Bedrock AgentCore cloud browsers

Run agent-browser skills list to see everything available on the installed version.

Changes

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.

11d ago First seen · 41 lines · 202 tokens per session scan A fcb33d0c9e85

Subscribe to this mod's changes

tomo-browse is a skill published in the GitHub repository shuaiyuan17/tomo (5 stars, last pushed today), licensed MIT. It adds 202 tokens to every session and 496 once invoked, about $0.0010 per session on Opus 5. A static security scan graded it A with 0 findings. It is 83% identical to agent-browser, differing in 31 lines, and is treated as a copy.

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