browse

61 / 100 · Review before installing

Check before installing.

By garrytan/gstack (GitHub) · other · 141,312 stars · scanned at commit bc858ff

Drive a real browser through Aside: open a page, read it, click through a flow, take screenshots, check console errors. (gstack)

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

This is disclosed by the author in the skill's SKILL.md or README.

Found in 348 places.

browse/SKILL.md, line 22~/.claude/skills/gstack/bin/gstack-skill-start --skill "browse" --model "claude"
browse/SKILL.md, line 117~/.claude/skills/gstack/bin/gstack-learnings-log '{"skill":"SKILL_NAME","type":"operational","key":"SHORT_KEY","insight":"DESCRIPTION","confidence":N,"source":"
browse/SKILL.md, line 133~/.claude/skills/gstack/bin/gstack-skill-end --skill "browse" --outcome OUTCOME \

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browse/SKILL.md, line 161_gs_d() { if command -v gtimeout >/dev/null; then gtimeout 30 "$@"; elif command -v timeout >/dev/null; then timeout 30 "$@"
browse/SKILL.md, line 205_ROOT=$(git rev-parse --show-toplevel 2>/dev/null)
browse/SKILL.md, line 251aside repl '
browse/SKILL.md, line 272aside repl '
browse/SKILL.md, line 298aside repl '
browse/SKILL.md, line 309aside repl '
browse/SKILL.md, line 324aside repl '
browse/SKILL.md, line 335aside repl '
browse/SKILL.md, line 347aside repl '
browse/SKILL.md, line 369_GT="$(git rev-parse --show-toplevel 2>/dev/null || pwd)/.gstack/tmp"
browse/SKILL.md, line 378_EG="$HOME/.claude/skills/gstack/bin/gstack-egress-lib.sh"; [ -r "$_EG" ] && . "$_EG"; _aside_exec() { if command -v _gstack_egress_run >/dev/null 2>&1; then _g
browse/SKILL.md, line 430R=".gstack/browse-reports/$(date +%Y-%m-%d-%H%M)"; mkdir -p "$R/screenshots"
browse/src/browse-client.ts, line 36import * as cp from 'child_process';
browse/src/browse-client.ts, line 108const proc = cp.spawnSync('git', ['rev-parse', '--show-toplevel'], { encoding: 'utf-8', timeout: 2000, windowsHide: true });
browse/src/browser-manager.ts, line 18import type { ChildProcess } from 'node:child_process';
browse/src/browser-manager.ts, line 909const versionProc = Bun.spawnSync([chromePath, '--version'], {
browse/src/browser-skill-commands.ts, line 258const proc = Bun.spawn(cmd, {

and 328 more places

Connects to the internet

This is disclosed by the author in the skill's SKILL.md or README.

Found in 161 places.

browse/SKILL.md, line 339for (const l of links) { if (!local) { console.log("LINK ?", l); continue; } const r = await fetch(l, { method: "HEAD" }).catch(e => ({ status: "ERR " + e.messa
browse/src/browse-client.ts, line 162resp = await fetch(`http://127.0.0.1:${this.port}/command`, {
browse/src/bun-polyfill.cjs, line 79const webRes = await fetch(webReq);

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browse/src/cli.ts, line 231const resp = await fetch(`http://127.0.0.1:${port}/health`, {
browse/src/cli.ts, line 1109const resp = await fetch(`http://127.0.0.1:${state.port}/command`, {
browse/src/cli.ts, line 1278curl -s -X POST \\
browse/src/cli.ts, line 1288curl -s -X POST \\
browse/src/cli.ts, line 1299curl -s -X POST \\
browse/src/cli.ts, line 1460const resp = await fetch(`http://127.0.0.1:${state.port}/agents`, {
browse/src/cli.ts, line 1481resp = await fetch(`http://127.0.0.1:${state.port}/token/${encodeURIComponent(name)}`, {
browse/src/cli.ts, line 1621const pairResp = await fetch(`http://127.0.0.1:${state.port}/pair`, {
browse/src/cli.ts, line 1671const cliProbe = await fetch(`${pairData.tunnel_url}/health`, {
browse/src/cli.ts, line 1698const tunnelResp = await fetch(`http://127.0.0.1:${state.port}/tunnel/start`, {
browse/src/cli.ts, line 1909const resp = await fetch(`http://127.0.0.1:${existingState.port}/health`, {
browse/src/cli.ts, line 1972const resp = await fetch(`http://127.0.0.1:${newState.port}/command`, {
browse/src/cli.ts, line 2101const resp = await fetch(`http://127.0.0.1:${existingState.port}/command`, {
browse/src/cookie-picker-ui.ts, line 475const response = await fetch(BASE + '/cookie-picker' + path, { ...opts, headers, credentials: 'same-origin' });
browse/src/routes/pairing.ts, line 124const probe = await fetch(`${tunnel.url}/connect`, {
browse/src/routes/tunnel.ts, line 32const probe = await fetch(`${tunnel.url}/connect`, {
browse/src/security-classifier.ts, line 82const res = await fetch(url);

and 141 more places

Downloads and installs other software

The author does not mention this.

Found in 13 places.

browse/src/browser-manager.ts, line 153'Re-fetch a clean one with: bunx playwright install chromium — then retry.',
browse/src/xprotect-heal.ts, line 397'Fix manually: run `bunx playwright install chromium` from your gstack install ' +
browse/src/xvfb.ts, line 234throw new Error(`Xvfb on ${display} exited during startup (code ${proc.exitCode})${fatal ? `: ${fatal}` : ''}. Hint: install xvfb (apt-get install xvfb / yum in

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browse/src/xvfb.ts, line 312return 'Xvfb not installed. apt-get install xvfb (Debian/Ubuntu) or yum install xorg-x11-server-Xvfb (RHEL/CentOS). Note: minimal containers (alpine, distroless
browse/test/xprotect-heal.test.ts, line 64║ bunx playwright install ║
browse/test/xprotect-heal.test.ts, line 371expect(thrown!.message).toContain('bunx playwright install chromium');
browse/test/xprotect-heal.test.ts, line 391expect(out).toContain('bunx playwright install chromium');
BROWSER.md, line 438plus manual `bunx playwright install chromium` guidance lands on daemon
setup, line 1754DEBIAN_FRONTEND=noninteractive timeout 120 $sudo apt-get install -y -qq fonts-noto-color-emoji >/dev/null 2>&1 || return 1
setup, line 1757timeout 120 $sudo dnf install -y google-noto-color-emoji-fonts >/dev/null 2>&1 || return 1
setup, line 2232brew install coreutils >/dev/null 2>&1 || log "warning: brew install coreutils failed; /codex will run without hang protection"
setup, line 2548echo " Debian/Ubuntu: sudo apt-get install fonts-noto-color-emoji" >&2
setup, line 2549echo " Fedora: sudo dnf install google-noto-color-emoji-fonts" >&2

Reads your browser cookies or saved passwords

This is disclosed by the author in the skill's SKILL.md or README.

Found in 24 places.

browse/test/cookie-credential-deadline.test.ts, line 17const folder = hostPlatform === 'darwin' ? 'Library/Application Support/Arc/User Data/Default'
browse/test/cookie-credential-deadline.test.ts, line 18: hostPlatform === 'linux' ? '.config/chromium/Default' : 'AppData/Local/Chromium/User Data/Default';
browse/test/cookie-credential-deadline.test.ts, line 201const dir = path.join(nodeFixture, 'Library/Application Support/Arc/User Data/Default');

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browse/test/cookie-import-browser.test.ts, line 437await withInstalledProfile('.config/chromium', LINUX_FIXTURE_DB, async () => {
browse/test/cookie-import-browser.test.ts, line 447test('imports Linux v10 cookies from ~/.config/chromium', async () => {
browse/test/cookie-import-browser.test.ts, line 448await withInstalledProfile('.config/chromium', LINUX_FIXTURE_DB, async () => {
browse/test/cookie-import-browser.test.ts, line 459await withInstalledProfile('.config/chromium', LINUX_FIXTURE_DB, async () => {
browse/test/cookie-import-browser.test.ts, line 470await withInstalledProfile('.config/chromium', LINUX_FIXTURE_DB, async () => {
browse/test/cookie-import-node.test.ts, line 20const profile = path.join(root, '.config/chromium/Default');
browse/test/cookie-import-operation.test.ts, line 24const dir = path.join(home, '.config/chromium', name);
browse/test/cookie-import-operation.test.ts, line 160fs.writeFileSync(path.join(home, '.config/chromium/Profile 2/Cookies'), 'not a database');
browse/test/cookie-import-operation.test.ts, line 207const db = new Database(path.join(home, '.config/chromium/Default/Cookies'));
browse/test/cookie-import-operation.test.ts, line 434fs.writeFileSync(path.join(home, '.config/chromium/Profile 2/Cookies'), 'not a database');
browse/test/cookie-import-reliability.test.ts, line 112profile('Library/Application Support/Arc/User Data', 'Profile 2');
browse/test/cookie-import-reliability.test.ts, line 118const root = '.config/chromium';
browse/test/cookie-import-reliability.test.ts, line 132const dir = profile('.config/chromium', 'Default');
browse/test/cookie-import-reliability.test.ts, line 133fs.writeFileSync(path.join(home, '.config/chromium/Local State'), '{');
browse/test/cookie-import-reliability.test.ts, line 139const dir = profile('.config/chromium', 'Default');
browse/test/cookie-import-reliability.test.ts, line 151const dir = profile('.config/chromium', 'Default');
browse/test/cookie-import-reliability.test.ts, line 162profile('.config/chromium', 'Default', 'constructor');

and 4 more places

Changes files outside its own folder

This is disclosed by the author in the skill's SKILL.md or README.

Found in 6 places.

BROWSER.md, line 1970cp browse/dist/browse ~/.claude/skills/gstack/browse/dist/browse
lib/result-codes.ts, line 607summary: 'bin/gstack-upgrade changed nothing: another live session holds a workflow lease on this installation (bin/gstack-lease live), or, at a Capy install, t
setup, line 1349_setup_row "$host" "$scope" "$dest" - "$SETUP_VERSION" failed "setup stopped (exit $rc) while installing $host, and its install could not be verified (checkout

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setup, line 2559mkdir -p "$HOME/.gstack/projects"
setup, line 3927echo " still discovers it as a skill. For a Codex-only install, move it: mv $INSTALL_GSTACK_DIR ~/gstack && cd ~/gstack && ./setup --host codex" >&2 ;;
setup, line 4303touch "$HOME/.gstack/.welcome-seen"

Safer alternatives

Low-risk skills in the same category (other) that look related. Check that one does what you need.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'browse' ] || [ -L ~/.agents/skills/'browse' ]; then echo 'A skill folder named browse already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/garrytan/gstack' "$d" && git -C "$d" checkout --quiet 'bc858ffc659bcc61558f60d0e023a009817dd48f' -- 'browse' && mkdir -p ~/.agents/skills && cp -R "$d"/'browse' ~/.agents/skills/'browse' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'browse' ~/.claude/skills/'browse' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

Badge for your README

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SkillTrust badge for garrytan/gstack

[![SkillTrust](https://zalavijaysinh.github.io/skilltrust/badges/garrytan/gstack.svg)](https://zalavijaysinh.github.io/skilltrust/repos/garrytan/gstack/)

Score history

Date	Version	Score
2026-11-12	`bc858ff`	61
2026-11-11	`f0cd9f8`	61
2026-11-10	`6b32714`	61
2026-11-09	`c25580e`	61
2026-11-08	`9740bfd`	61
2026-11-08	`d479c5b`	61
2026-11-06	`0c41ced`	41