web-browser is a skill in mitsuhiko/agent-stuff, last changed 6 Sept 2026. It can run shell commands, reach the network, name web addresses and bundle scripts — read the findings before installing.
Automate and interact with web pages through Chrome or Chromium using the Chrome DevTools Protocol (CDP): navigate, click, fill forms, inspect content, take screenshots, and debug console or network activity. Use when an agent needs a real browser. Prefer headless Chrome unless visible browser interaction is required.
At a glance
What it can touch
How much a skill can do, not whether it is risky.
Pattern check
Nothing flagged
That isn't proof the skill is harmless.
Commit 0865c84 · 3 Nov 2026
How the check worksPattern check: nothing flagged
That isn't proof the skill is harmless.
Install
Each tab says whether it installs commit 0865c84, the one we checked, or the latest version.
OpenCode also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Goose also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Windsurf (Devin Desktop) also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Zed also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Roo Code also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Factory Droid also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Junie also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
Amp also looks in .agents/skills/ and ~/.agents/skills/, so use the Any agent steps.
No install command here reaches Kiro. Copy the skill's folder into .kiro/skills/ in your project, or ~/.kiro/skills/ for all your projects. mitsuhiko/agent-stuff/skills/web-browser (opens in a new tab)
Antigravity also looks in .agents/skills/, so the Any agent steps reach it with This project. For All projects, see where Antigravity looks.
Cline also looks in .claude/skills/, so the Claude Code steps reach it with This project. For All projects, see where Cline looks.
Claude Code
Pinned to commit 0865c84, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/mitsuhiko/agent-stuff.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 0865c849befd2021490679f96a8dee58c84ac857 &&git -C "$tmp" sparse-checkout set -- skills/web-browser &&git -C "$tmp" checkout -q 0865c849befd2021490679f96a8dee58c84ac857 &&mkdir -p .claude/skills &&mkdir .claude/skills/web-browser &&cp -R "$tmp"/skills/web-browser/. .claude/skills/web-browser/ &&rm -rf "$tmp"If Claude Code was already running and this created the skills folder, run /reload-skills.
Claude apps
Pinned to commit 0865c84, the one we checked.
Skills in the Claude apps belong to your account rather than to a project.
Make web-browser.zip, with the skill folder at the top level:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/mitsuhiko/agent-stuff.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 0865c849befd2021490679f96a8dee58c84ac857 &&git -C "$tmp" sparse-checkout set -- skills/web-browser &&git -C "$tmp" checkout -q 0865c849befd2021490679f96a8dee58c84ac857 &&out="$(mktemp -d)" &&cp -R "$tmp"/skills/web-browser "$out"/web-browser &&(cd "$out" && zip -qr - web-browser) > web-browser.zip &&rm -rf "$tmp" "$out"In Claude, open Customize > Skills, select +, then + Create skill > Upload a skill, and choose web-browser.zip.
On Free, Pro and Max plans, turn on Code execution and file creation (Create and edit files in newer settings) under Settings > Capabilities.
Codex
Pinned to commit 0865c84, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/mitsuhiko/agent-stuff.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 0865c849befd2021490679f96a8dee58c84ac857 &&git -C "$tmp" sparse-checkout set -- skills/web-browser &&git -C "$tmp" checkout -q 0865c849befd2021490679f96a8dee58c84ac857 &&mkdir -p .agents/skills &&mkdir .agents/skills/web-browser &&cp -R "$tmp"/skills/web-browser/. .agents/skills/web-browser/ &&rm -rf "$tmp"Codex picks up new skills on its own; restart it if this one does not appear.
Cursor
Pinned to commit 0865c84, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/mitsuhiko/agent-stuff.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 0865c849befd2021490679f96a8dee58c84ac857 &&git -C "$tmp" sparse-checkout set -- skills/web-browser &&git -C "$tmp" checkout -q 0865c849befd2021490679f96a8dee58c84ac857 &&mkdir -p .cursor/skills &&mkdir .cursor/skills/web-browser &&cp -R "$tmp"/skills/web-browser/. .cursor/skills/web-browser/ &&rm -rf "$tmp"Copilot & VS Code
Pinned to commit 0865c84, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/mitsuhiko/agent-stuff.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 0865c849befd2021490679f96a8dee58c84ac857 &&git -C "$tmp" sparse-checkout set -- skills/web-browser &&git -C "$tmp" checkout -q 0865c849befd2021490679f96a8dee58c84ac857 &&mkdir -p .github/skills &&mkdir .github/skills/web-browser &&cp -R "$tmp"/skills/web-browser/. .github/skills/web-browser/ &&rm -rf "$tmp"In a running Copilot CLI session, run /skills reload.
Or install it with gh skill, which also installs the commit we checked. Needs GitHub CLI 2.90 or later.
gh skill install mitsuhiko/agent-stuff skills/web-browser/SKILL.md@0865c849befd2021490679f96a8dee58c84ac857 --agent github-copilot --scope projectGemini CLI
Pinned to commit 0865c84, the one we checked.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/mitsuhiko/agent-stuff.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 0865c849befd2021490679f96a8dee58c84ac857 &&git -C "$tmp" sparse-checkout set -- skills/web-browser &&git -C "$tmp" checkout -q 0865c849befd2021490679f96a8dee58c84ac857 &&mkdir -p .gemini/skills &&mkdir .gemini/skills/web-browser &&cp -R "$tmp"/skills/web-browser/. .gemini/skills/web-browser/ &&rm -rf "$tmp"In a running session, run /skills reload.
Or use Gemini CLI’s own installer. Installs the latest version, not the one we checked.
gemini skills install https://github.com/mitsuhiko/agent-stuff.git --path skills/web-browser --scope workspaceAny agent
Pinned to commit 0865c84, the one we checked.
OpenCode, Goose, Windsurf (Devin Desktop), Zed, Roo Code, Factory Droid, Junie, Amp and Antigravity read .agents/skills in a project.
From your project's root folder:
tmp="$(mktemp -d)" &&git clone -q --depth 1 --filter=blob:none --no-checkout https://github.com/mitsuhiko/agent-stuff.git "$tmp" &&git -C "$tmp" fetch -q --depth 1 origin 0865c849befd2021490679f96a8dee58c84ac857 &&git -C "$tmp" sparse-checkout set -- skills/web-browser &&git -C "$tmp" checkout -q 0865c849befd2021490679f96a8dee58c84ac857 &&mkdir -p .agents/skills &&mkdir .agents/skills/web-browser &&cp -R "$tmp"/skills/web-browser/. .agents/skills/web-browser/ &&rm -rf "$tmp"Or use the skills CLI from skills.sh. Installs the latest version, not the one we checked. The skills CLI reports installs to skills.sh unless you set DISABLE_TELEMETRY=1.
npx skills@1.7.4 add mitsuhiko/agent-stuff --skill web-browserWhat it can touch
From the files and frontmatter at commit 0865c84. This is how much a skill can do, not whether it is risky.
Pattern check
Pattern check: nothing flagged · commit 0865c84 · 3 Nov 2026
We checked every text file in this skill, at commit 0865c84 on 3 Nov 2026, against 45 published patterns such as download-and-run commands, hidden text and credential access. We don't run the skill, we don't read the web pages it points to, and we can't judge everything its instructions might lead an agent to do. In published tests, pattern checks like this one missed most malicious skills. Read the skill before you install it — especially anything it asks you to download or run.
How the check worksReport an incorrect finding
Outside links we did not follow
- http://$
- https://registry.npmjs.org/ws/-/ws-8.19.0.tgz
Format check
Each agent reads SKILL.md a little differently. We check the file against each one's published rules; we don't run the skill in any agent.
- Agent Skills specPasses
- Claude CodePasses
Claude apps & API uploadPasses
Uploading to claude.ai or the Claude API, or packaging with Anthropic's script, accepts only the six spec fields and stops on anything else.
- Note
The description is 319 characters. The claude.ai Help Center says 200 at most, though Anthropic's API docs and validator allow 1,024. D4
Fix: If the claude.ai upload refuses it, trim the description to 200 characters.
- Note
- OpenAI (Codex & API)Passes
- VS Code & CopilotPasses
SKILL.md
We only show SKILL.md text here when its licence clearly allows it.
Read SKILL.md on GitHub (opens in a new tab)Files
19 files
More from mitsuhiko/agent-stuff
| Skill | What it can touch | Pattern check | Licence | Updated |
|---|---|---|---|---|
anachbAustrian public transport (VOR AnachB) for all of Austria. Query real-time departures, search stations/stops, plan routes between locations, and check service disruptions. Use when asking about Austrian trains, buses, trams, metro (U-Bahn), or directions involving public transport in Austria.
Pattern check: Nothing flaggedApache 2.0Updated 8 Jan 2026 |
| Pattern check: Nothing flagged | Apache 2.0 | 8 Jan 2026 |
apple-mailSearch, read, and extract attachments from Apple Mail's local storage. Query emails by sender, recipient, subject, body, date, mailbox, and flags. Read raw RFC822 messages and extract file attachments.
Pattern check: Nothing flaggedApache 2.0Updated 17 Feb 2026 |
| Pattern check: Nothing flagged | Apache 2.0 | 17 Feb 2026 |
audio-transcriptionTranscribe local audio/video and Apple Voice Memos quickly with cached MLX Whisper models, including bad/low-quality audio.
Pattern check: Nothing flaggedApache 2.0Updated 3 Jul 2026 |
| Pattern check: Nothing flagged | Apache 2.0 | 3 Jul 2026 |
commitRead this skill before making git commits
Pattern check: Nothing flaggedApache 2.0Updated 29 Jan 2026 |
| Pattern check: Nothing flagged | Apache 2.0 | 29 Jan 2026 |
ghidraReverse engineer binaries using Ghidra's headless analyzer. Decompile executables, extract functions, strings, symbols, and analyze call graphs without GUI.
Pattern check: Nothing flaggedApache 2.0Updated 30 Dec 2025 |
| Pattern check: Nothing flagged | Apache 2.0 | 30 Dec 2025 |
githubInteract with GitHub using the `gh` CLI. Use `gh issue`, `gh pr`, `gh run`, and `gh api` for issues, PRs, CI runs, and advanced queries.
Pattern check: Nothing flaggedApache 2.0Updated 28 Dec 2025 |
| Pattern check: Nothing flagged | Apache 2.0 | 28 Dec 2025 |
Other Coding & code review skills
Same category, most repo stars first.