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 agentmods add skills/rivet-dev/agentos/browsenpx skills add rivet-dev/agentos --skill browsegit clone --depth 1 https://github.com/rivet-dev/agentosWhat 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 | $0.00109 | $0.03756 |
| Opus 5 | $0.00055 | $0.01878 |
| Sonnet 5 | $0.00022 | $0.00751 |
| Haiku 4.5 | $0.00011 | $0.00376 |
Grade A, and why
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 yesterday.
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 — 369 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Browse CLI
Use browse as the primary Browserbase command-line interface.
It can:
- drive a local or Browserbase-hosted browser session
- inspect pages through accessibility snapshots, screenshots, DOM/text reads, and network capture
- interact with pages by refs, selectors, XPath, keyboard, mouse, files, and viewport controls
- manage Browserbase projects, sessions, contexts, extensions, fetch, and search APIs
- develop, publish, and invoke Browserbase Functions
- browse and scaffold Browserbase templates
- diagnose local or remote browser setup issues
- discover and install Browse.sh catalog skills
- install or refresh this Browse CLI skill
Setup Check
Verify the CLI exists before relying on it:
which browse || npm install -g browse
browse --help
Install or refresh this skill with:
browse skills install
Use browse <topic> --help for exact flags before running unfamiliar commands.
Browser Target Selection
Browser driver commands auto-start the browse daemon when needed. Choose the browser target per command with flags:
browse open https://example.com --local
browse open https://example.com --local --headed
browse open https://example.com --remote
browse open https://example.com --remote --verified --proxies
browse open https://example.com --auto-connect
browse open https://example.com --cdp 9222
browse open https://example.com --cdp ws://127.0.0.1:9222/devtools/browser/<id>
Use local mode for development, localhost, trusted sites, and fast iteration. Use --auto-connect only when the user explicitly wants to attach to an already-running debuggable Chrome session with existing cookies or login state; use --local when no debuggable Chrome is available. Use remote mode when Browserbase credentials are available and the site needs hosted browser infrastructure, Verified browser mode, CAPTCHA solving, proxies, or session persistence.
For a Verified and/or proxied remote session, add --verified and/or --proxies to --remote — a single command that keeps the Browserbase session identity, so browse status and browse doctor report the session ID and live-view URL. --verified requires a Browserbase Scale plan. These flags only apply to --remote and are sticky for the session's lifetime, like --headed. Reach for browse cloud sessions create + --cdp only when you need session options open doesn't expose (region, keep-alive, contexts).
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.
- yesterday First seen · 369 lines · 109 tokens per session scan A 196f0b59ad62
browse is a skill published in the GitHub repository rivet-dev/agentos (4,435 stars, last pushed 5d ago), licensed Apache-2.0. It adds 109 tokens to every session and 3,756 once invoked, about $0.0005 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 2026-08-30.
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