Agent skill · security · yonatangross
browser-tools
Safety rules over the upstream agent-browser skill: scraping ethics, auth, request pacing, local URLs. Use for browser automation.
Why this skill is useful
Adds security features like URL blocklisting and rate limiting that enhance the safety of browser automation workflows.
What it needs
Requires portless installed locally. About 11k tokens when loaded. Last updated 2026-08-06. 215 stars on the source repository.
What this skill does
Browser Tools — Security Wrapper OrchestKit security wrapper for agent-browser. For command reference and usage patterns, use the upstream agent-browser skill directly. This skill adds safety guardrails only. Command docs: Refer to the upstream agent-browser skill for the full command reference (50+ commands: interaction, wait, capture, extraction, storage, semantic locators, tabs, debug, mobile, network, cookies, state, vault). Upstream coverage (do not restate) These topics belong to the vendor. Read them at the source; do not copy them back into this skill. Topic First-party source ------- -------------------- CLI command reference, snapshot and ref loop, waits, auth options, eval, config file agent-browser skill · https://github.com/vercel-labs/agent-browser/blob/main/skills/agent-browser/SKILL.md Electron and desktop-app automation over CDP (connect, --cdp, webviews, tabs) https://github.com/vercel-labs/agent-browser/blob/main/skill-data/electron/SKILL.md Slack workspace navigation and extraction recipes https://github.com/vercel-labs/agent-browser/blob/main/skill-data/slack/SKILL.md Running headless in a Vercel Sandbox microVM (deps, snapshots, cron) vercel:vercel-sandbox skill · https://github.com/vercel-labs/agent-browser/blob/main/skill-data/vercel-sandbox/SKILL.md Exploratory QA sweep with repro evidence (issue taxonomy, report template) dogfood skill · https://github.com/vercel-labs/agent-browser/blob/main/skill-data/dogfood/SKILL.md Named .localhost dev URLs ork:portless skill · https://github.com/vercel-labs/portless Our delta over all of the above: references/ork-delta.md, covering what nothing checks any more, polite pacing across sessions, and the local-URL policy. Decision Tree Local Dev URLs Use Portless (npm i -g portless) for stable local dev URLs instead of guessing ports. When Portless is running, navigate to myapp.localhost instead of localhost:3000. Nothing in OrchestKit blocks local URLs. …
How to use it
Reference it in AdaL, Claude Code, Cursor or any coding agent — nothing to install:
@skills yonatangross/browser-tools--d19efd