grok-worker

grok-worker is a skill for Claude Code, Codex from Syysean/web-ai-skills. It costs 76 tokens per session (1,322 once invoked), scanned C, original, MIT.

A browser-based worker that sends prompts to Grok, an AI service, and returns its response. It supports question answering, summaries, translations, rewrites, extraction, comparisons, brainstorming, and analysis.

In plain words
What is it for?
It helps with current-events or web-informed questions, as well as summaries, translations, rewrites, comparisons, brainstorming, and analysis through Grok.
Why use it?
It lets a coding agent delegate tasks to a separate AI system, including work that may need current web information or news. A logged-in browser session is required.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Good fit It helps with current-events or web-informed questions, as well as summaries, translations, rewrites, comparisons, brainstorming, and analysis through Grok.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/syysean/web-ai-skills/grok-worker
Install

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.

Any agent
npx skills add Syysean/web-ai-skills --skill grok-worker
Clone the repo
git clone --depth 1 https://github.com/Syysean/web-ai-skills

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for grok-worker

README.md
[![agentmods](https://agentmods.dev/badge/skills/syysean/web-ai-skills/grok-worker/github.svg)](https://agentmods.dev/skills/syysean/web-ai-skills/grok-worker)
Your own site
<a href="https://agentmods.dev/skills/syysean/web-ai-skills/grok-worker"><img src="https://agentmods.dev/badge/skills/syysean/web-ai-skills/grok-worker/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for grok-worker

Your own site · 80×15
<a href="https://agentmods.dev/skills/syysean/web-ai-skills/grok-worker"><img src="https://agentmods.dev/badge/skills/syysean/web-ai-skills/grok-worker.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 76 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,322 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00076 $0.01322
Opus 5 $0.00038 $0.00661
Sonnet 5 $0.00015 $0.00264
Haiku 4.5 $0.00008 $0.00132

Measured 11d ago against content hash 5a0f5ba65ecd, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade C, and why

grok-worker scanned grade C with 1 finding 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 11d ago.

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.

Hidden instructionshighPrompt injection

Directives inside HTML comments, invisible characters or bidirectional overrides are read by the model and not by the person reviewing the file.

​```javascript (function() { const els = document.querySelectorAll('.response-content-markdown'); if (els.length > 0) return els[els.length - 1].innerText?.trim()?.length || 0; return 0; })() ​``` If 120 seconds pass wit
grok-worker/SKILL.md · 208 lines

How it starts

The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Shell Escaping Note

When passing JavaScript to browser-eval.js, always use double quotes for the outer shell argument and single quotes inside the JavaScript. Example: browser-eval.js "document.querySelector('.class')?.innerText"

Grok Worker

Send a prompt to Grok via browser and return the response.

Environment

  • URL: https://grok.com
  • Browser: Chrome on localhost:9222 (managed by local-browser-tools)
  • Login: Required — session persisted in ~/.cache/browser-tools profile
  • Tools: browser-start.js, browser-nav.js, browser-eval.js, browser-screenshot.js

Input

prompt: string        # The text to send to Grok
task_type: string     # qa | summary | translation | rewrite | extraction | comparison | brainstorming | analysis

Output

Always output this JSON block first:

{
  "site": "grok",
  "task_type": "<task_type>",
  "status": "success | partial | error",
  "answer": "<extracted response text>",
  "retry_count": 0,
  "elapsed_ms": 0,
  "error_reason": null
}

Then follow with a short human-readable summary (2–3 sentences max).


Workflow

Step 1 — Start browser

node ~/.pi/agent/skills/local-browser-tools/browser-start.js

Expected: ✓ Chrome already running on :9222 or ✓ Chrome started on :9222

If fails: return error status, stop.


Step 2 — Navigate to Grok

node ~/.pi/agent/skills/local-browser-tools/browser-nav.js https://grok.com

Take a screenshot and verify:

  • Input box is visible
  • User avatar or username is visible in the top-right (confirms login)

If login page appears with no input box: return error_reason: "login_required", stop.


Step 3 — Locate input box

Grok uses a div[contenteditable] with role="textbox" and aria-label="Ask Grok anything".

Check:

!!document.querySelector('[aria-label="Ask Grok anything"]')

Fallback selectors in order:

  1. [aria-label="Ask Grok anything"]
  2. [contenteditable="true"][role="textbox"]
  3. div[contenteditable]

Read the full file on GitHub · 208 lines

Changes

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.

  1. 11d ago First seen · 208 lines · 76 tokens per session scan C 5a0f5ba65ecd

Subscribe to this mod's changes

grok-worker is a skill published in the GitHub repository Syysean/web-ai-skills (5 stars, last pushed 3mo ago), licensed MIT. It adds 76 tokens to every session and 1,322 once invoked, about $0.0004 per session on Opus 5. A static security scan graded it C with 1 finding (hidden instructions). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.