Webctl
cosinusalpha/webctl
Browser automation via CLI. An agent skill from cosinusalpha/webctl.
Make browser automation reliable — anchor every click, type, and scroll to stable DOM selectors and semantic roles instead of screen coordinates, so actions survive layout shifts, A/B tests, and…
Install Claw Browser Anchor
$ npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install breakstageaxe61/genspark-claw claw-browser-anchor --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/breakstageaxe61/genspark-claw.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/claw-browser-anchor .claude/skills/claw-browser-anchor && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "claw-browser-anchor" agent skill from https://github.com/breakstageaxe61/genspark-claw/tree/main/skills/claw-browser-anchor into .claude/skills/claw-browser-anchor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claw-browser-anchor", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/breakstageaxe61/genspark-claw/tree/main/skills/claw-browser-anchorType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install breakstageaxe61/genspark-claw claw-browser-anchor --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/breakstageaxe61/genspark-claw.git skills-src && mkdir -p .agents/skills && cp -r skills-src/skills/claw-browser-anchor .agents/skills/claw-browser-anchor && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "claw-browser-anchor" agent skill from https://github.com/breakstageaxe61/genspark-claw/tree/main/skills/claw-browser-anchor into .agents/skills/claw-browser-anchor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claw-browser-anchor", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install breakstageaxe61/genspark-claw claw-browser-anchor --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/breakstageaxe61/genspark-claw.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/skills/claw-browser-anchor .cursor/skills/claw-browser-anchor && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "claw-browser-anchor" agent skill from https://github.com/breakstageaxe61/genspark-claw/tree/main/skills/claw-browser-anchor into .cursor/skills/claw-browser-anchor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claw-browser-anchor", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/breakstageaxe61/genspark-claw.git --path skills/claw-browser-anchor--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install breakstageaxe61/genspark-claw claw-browser-anchor --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/breakstageaxe61/genspark-claw.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/skills/claw-browser-anchor .gemini/skills/claw-browser-anchor && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "claw-browser-anchor" agent skill from https://github.com/breakstageaxe61/genspark-claw/tree/main/skills/claw-browser-anchor into .gemini/skills/claw-browser-anchor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claw-browser-anchor", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install breakstageaxe61/genspark-claw claw-browser-anchorInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/breakstageaxe61/genspark-claw.git skills-src && mkdir -p .github/skills && cp -r skills-src/skills/claw-browser-anchor .github/skills/claw-browser-anchor && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "claw-browser-anchor" agent skill from https://github.com/breakstageaxe61/genspark-claw/tree/main/skills/claw-browser-anchor into .github/skills/claw-browser-anchor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claw-browser-anchor", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install breakstageaxe61/genspark-claw claw-browser-anchor --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/breakstageaxe61/genspark-claw.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/skills/claw-browser-anchor .opencode/skills/claw-browser-anchor && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "claw-browser-anchor" agent skill from https://github.com/breakstageaxe61/genspark-claw/tree/main/skills/claw-browser-anchor into .opencode/skills/claw-browser-anchor/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "claw-browser-anchor", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
claw-browser-anchor- GitHub stars
- 169
- Token cost
- ~1k tokens
- SKILL.md length
- 479 words
- Files
- 1
- Skills in repo
- 5
- Repo updated
- First seen
- Licence
- MIT
At a glance
Make browser automation reliable — anchor every click, type, and scroll to stable DOM selectors and semantic roles instead of screen coordinates, so actions survive layout shifts, A/B tests, and…
- Works in 7 steps: Snapshot before acting. Capture the DOM… → Choose anchors in priority order → Score every anchor. Before using a… → …
- Tasks that involve Browser automation
- SKILL.md covers Context, Instructions, Error Handling and Rules, plus 1 more section
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Claw Browser Anchor is an agent skill from breakstageaxe61/genspark-claw. Make browser automation reliable — anchor every click, type, and scroll to stable DOM selectors and semantic roles instead of screen coordinates, so actions survive layout shifts, A/B tests, and viewport changes.
Its SKILL.md is about 1k tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts. Compatibility notes: ["genspark-claw","openclaw","hermes","claude-code","cursor"]
It sits in Productivity & Automation, covering Browser automation and A/B testing. It works with Model Context Protocol. The repository describes itself as: 🦀⚡ Community skill pack & CLI for Genspark Claw, OpenClaw & Hermes agents — 5 production-ready SKILL.md skills (deep research, reports, slides, browser automation, AI call…. The licence is MIT.
When your agent uses it
- Tasks that involve Browser automation
- Tasks that involve A/B testing
Example prompts
- “/claw-browser-anchor”
Requirements
- Compatibility (from SKILL.md): ["genspark-claw","openclaw","hermes","claude-code","cursor"]
Workflow steps
7 steps, taken from the first numbered list in SKILL.md.
- Snapshot before acting. Capture the DOM or accessibility tree of the
- Choose anchors in priority order
- Score every anchor. Before using a selector, verify it matches exactly
- Act, then verify. After each click/type/navigation, assert the expected
- Handle drift. If an anchor that worked before now fails, re-snapshot
- Wait on state, not time. Poll for the element or network idle with a
- Log the trace. Keep a step list: action, anchor used, verification
What it can do on your machine
Read from SKILL.md and the folder at commit 2ef198c. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Compatibility
["genspark-claw","openclaw","hermes","claude-code","cursor"]
From compatibility in the SKILL.md frontmatter.
Context cost
Claw Browser Anchor loads about 1k tokens when it runs. Until then it costs about 58 tokens; SKILL.md has 479 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from breakstageaxe61/genspark-claw at commit 2ef198c, republished under its MIT licence (© breakstageaxe61). 479 words, ~1,024 tokens.
Download SKILL.mdSave it as
.claude/skills/claw-browser-anchor/SKILL.md (or your agent's skills folder).- name
- claw-browser-anchor
- description
- Make browser automation reliable — anchor every click, type, and scroll to stable DOM selectors and semantic roles instead of screen coordinates, so actions survive layout shifts, A/B tests, and viewport changes.
- compatibility
- ["genspark-claw","openclaw","hermes","claude-code","cursor"]
- version
- 1.0.0
- license
- MIT
- triggers
- browse, click, fill out the form, automate the website, log in and, scrape this page
- metadata.category
- browser-automation
- metadata.author
- breakstageaxe61
Claw Browser Anchor
You are a browser-automation engineer. Coordinate-based clicking ("click at x=412, y=305") is fragile: it breaks on scroll, reflow, responsive layouts, A/B tests, and font changes. Your job is to anchor every action to the page's structure so the workflow still works tomorrow.
Context
You control a browser through an automation tool (Playwright-style selectors, a computer-use driver, or the agent's built-in browser). Before acting, you can inspect the DOM or accessibility tree. Reliability matters more than elegance: a boring selector that survives a redesign beats a clever one that does not.
Instructions
- Snapshot before acting. Capture the DOM or accessibility tree of the current page. Never act from a screenshot alone when structure is available.
- Choose anchors in priority order:
data-testid/data-test/data-cyattributes (built for automation)- ARIA role + accessible name (
role=button[name="Sign in"]) - Stable IDs that are not auto-generated (reject IDs with long random
suffixes like
ember4271or:r3k:) - Semantic structure (
form[name="login"] input[type="password"]) - Text content, only for short unique strings, scoped to a container
- XPath/CSS positional chains — last resort; add a comment flagging them
- Score every anchor. Before using a selector, verify it matches exactly one element. If it matches zero, re-snapshot; if it matches many, add scope (nearest stable ancestor) until it is unique.
- Act, then verify. After each click/type/navigation, assert the expected effect (URL change, element appears, value present) before continuing. Treat "no error" as different from "worked".
- Handle drift. If an anchor that worked before now fails, re-snapshot and re-derive the anchor using the same priority order. Record the old and new anchor in your notes so the workflow can be updated.
- Wait on state, not time. Poll for the element or network idle with a
timeout. Fixed
sleep(3)calls are a bug. - Log the trace. Keep a step list: action, anchor used, verification result. When a run fails, the trace is the bug report.
Show full SKILL.md (156 more words)Show less
Error Handling
- Element not found after re-snapshot: scroll it into view, check iframes and shadow DOM roots, then check for a login wall or consent modal blocking it.
- Consent/cookie modal: dismiss it once via its own stable anchor, then retry the original action.
- Navigation race: after any submit/click that navigates, wait for the new page's ready state before snapshotting.
- Three failed attempts on the same step: stop, report the trace, and ask the user — do not keep clicking blindly.
Rules
- Never use raw screen coordinates when a structural anchor exists.
- Never submit credentials, payments, or irreversible actions without explicit user confirmation in the current session.
- Respect
robots.txt, site terms, and rate limits; identify automation honestly when a site asks. - Do not bypass CAPTCHAs or access controls — hand off to the user instead.
- Keep each workflow resumable: store progress so a crashed run can restart from the last verified step.
Output Format
For each automation run, report:
## Run: <goal>
1. <action> — anchor: <selector strategy used> — ✔ verified / ✖ failed
2. …
### Result
<what was accomplished / where it stopped and why>
### Fragile anchors to watch
<selectors that needed positional fallbacks>© breakstageaxe61, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
Just SKILL.md in skills/claw-browser-anchor of breakstageaxe61/genspark-claw.
Open the folder on GitHubat commit 2ef198c
Compare with similar skills
Claw Browser Anchor next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Claw Browser Anchor this skillbreakstageaxe61/genspark-claw | 169 | — | ~1k | Automated safety check: Pass | MIT | |
| Webctlcosinusalpha/webctl | 419 | — | ~1.7k | Automated safety check: Pass | None | |
| Browser Automationmozilla/firefox-devtools-mcp | 478 | — | ~807 | Automated safety check: Pass | Custom licence | |
| Claude Bowserdisler/bowser | 265 | — | ~327 | Automated safety check: Warn | None | |
| BrowserUndertone0809/rudder | 292 | — | ~2.6k | Automated safety check: Pass | Apache-2.0 | |
| Next Dev Loopvercel/next.js | 143k | 9 repos | ~2.3k | Automated safety check: Pass | MIT |
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Related
Works with
Categories
Questions about Claw Browser Anchor
What does Claw Browser Anchor do?
Make browser automation reliable — anchor every click, type, and scroll to stable DOM selectors and semantic roles instead of screen coordinates, so actions survive layout shifts, A/B tests, and…. Claw Browser Anchor is an agent skill from breakstageaxe61/genspark-claw. Make browser automation reliable — anchor every click, type, and scroll to stable DOM selectors and semantic roles instead of screen coordinates, so actions survive layout shifts, A/B tests, and viewport changes.
When should I use Claw Browser Anchor?
Claw Browser Anchor fits situations like: tasks that involve Browser automation; tasks that involve A/B testing.
How do I install Claw Browser Anchor in Claude Code?
Run `npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a claude-code`. Or copy the skill folder (skills/claw-browser-anchor in breakstageaxe61/genspark-claw) into .claude/skills/claw-browser-anchor in your project. Claude Code loads it when a task matches its description.
How do I install Claw Browser Anchor in Codex?
Run `npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a codex`. Or copy the skill folder (skills/claw-browser-anchor in breakstageaxe61/genspark-claw) into .agents/skills/claw-browser-anchor in your project. Codex loads it when a task matches its description.
Can I use Claw Browser Anchor in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add breakstageaxe61/genspark-claw --skill claw-browser-anchor -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/claw-browser-anchor, .gemini/skills/claw-browser-anchor, .github/skills/claw-browser-anchor and .opencode/skills/claw-browser-anchor in your project.
What does Claw Browser Anchor need to run?
SKILL.md names no scripts, command-line tools or credentials: Claw Browser Anchor is instructions for the agent only. Compatibility (from SKILL.md): ["genspark-claw","openclaw","hermes","claude-code","cursor"].
Does Claw Browser Anchor access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Claw Browser Anchor safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Claw Browser Anchor use?
Claw Browser Anchor is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Claw Browser Anchor use?
About 1k tokens (SKILL.md is roughly 4.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.
What are the alternatives to Claw Browser Anchor?
Skills that share tags, products or a category with Claw Browser Anchor: Webctl (cosinusalpha/webctl, 419 stars), Browser Automation (mozilla/firefox-devtools-mcp, 478 stars), Claude Bowser (disler/bowser, 265 stars) and Browser (Undertone0809/rudder, 292 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Claw Browser Anchor?
breakstageaxe61 (a GitHub user) maintains it in breakstageaxe61/genspark-claw, which has 169 GitHub stars. The repository holds 5 skills in this directory. The repository was last updated on September 26, 2026.
Source: breakstageaxe61/genspark-claw on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.