eyebrowse-setup

eyebrowse-setup is a skill for Claude Code, Codex from evan108108/eyebrowse. It costs 17 tokens per session (1,427 once invoked), scanned A, original, MIT.

A setup and troubleshooting guide for Eyebrowse, a bridge that lets an agent control Chrome through a local service and browser extension.

In plain words
What is it for?
It helps install and diagnose the Eyebrowse daemon, check its health, and verify that Chrome windows are connected.
Why use it?
It helps identify whether the local service, connection, and Chrome extension are running and communicating correctly.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: reads .claude/ paths; mentions Claude Code.

Not installable: its command points at a path on the author’s own machine, so it runs nowhere else. The line is /Users/evan/memory/eyebrowse.

Good fit It helps install and diagnose the Eyebrowse daemon, check its health, and verify that Chrome windows are connected.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

There is no command for this one: it runs only inside a plugin, and the catalogue could not identify which plugin ships it. The source is linked below.

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 eyebrowse-setup

README.md
[![agentmods](https://agentmods.dev/badge/skills/evan108108/eyebrowse/skill.svg)](https://agentmods.dev/skills/evan108108/eyebrowse/skill)
Your own site
<a href="https://agentmods.dev/skills/evan108108/eyebrowse/skill"><img src="https://agentmods.dev/badge/skills/evan108108/eyebrowse/skill.svg" alt="Measured on agentmods" height="20"></a>
Per session 17 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,427 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 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 $0.00017 $0.01427
Opus 5 $0.00009 $0.00714
Sonnet 5 $0.00003 $0.00285
Haiku 4.5 $0.00002 $0.00143

Measured 6d ago against content hash 31a7ca52b668, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

eyebrowse-setup scanned grade A 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 6d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -sf http://localhost:7890/health
skill/SKILL.md · 162 lines

How it starts

The opening of the file, as written. The whole thing — 162 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Eyebrowse Setup & Diagnostics

When this skill is invoked, run all diagnostic checks below in order and report a status table. Then offer to fix anything that's broken.

Architecture Quick Reference

Eyebrowse has three parts:

  • Daemon — Bun HTTP/WS server on localhost:7890 (manages sessions, bridges MCP ↔ extension)
  • MCP Server — stdio wrapper that registers with the daemon and exposes browser tools to Claude Code
  • Chrome Extension — WebSocket client that executes commands in Chrome via CDP

Flow: Claude Code → MCP (stdio) → Daemon (HTTP :7890) → Extension (WS) → Chrome

Diagnostic Checks

Run these checks and present results as a status table:

1. Daemon Health

curl -sf http://localhost:7890/health
  • OK → daemon is running
  • Connection refused → daemon is not running (see "Start the Daemon" below)
  • Timeout → port 7890 may be blocked or daemon is hung

2. Extension Connected

Read the daemon token, then query windows:

TOKEN=$(cat ~/.eyebrowse/daemon.token 2>/dev/null)
curl -sf -H "Authorization: Bearer $TOKEN" http://localhost:7890/api/windows
  • Returns JSON array with windows → extension is connected and Chrome is open
  • Empty array [] → extension is installed but no Chrome windows are open
  • 401/no token → daemon token missing (daemon may need restart)
  • Connection refused → daemon not running

3. MCP Config

Read ~/.claude.json and check for mcpServers.eyebrowse. It should look like:

{
  "mcpServers": {
    "eyebrowse": {
      "command": "bun",
      "args": ["run", "<EYEBROWSE_HOME>/mcp/index.ts"]
    }
  }
}

Where <EYEBROWSE_HOME> is the path to the eyebrowse repo (e.g. /Users/evan/memory/eyebrowse).

  • Present and correct → MCP is configured
  • Missing → add the config (see "Configure MCP" below)
  • Wrong path → update the path to match the actual repo location

4. End-to-End Test

If checks 1-3 pass, run a live test:

  1. Call mcp__eyebrowse__open_browser with url https://example.com
  2. Call mcp__eyebrowse__screenshot
  3. Verify the screenshot shows the Example Domain page
  4. Call mcp__eyebrowse__close_window

Read the full file on GitHub · 162 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. 6d ago First seen · 162 lines · 17 tokens per session scan A 31a7ca52b668

Subscribe to this mod's changes

eyebrowse-setup is a skill published in the GitHub repository evan108108/eyebrowse (2 stars, last pushed 4mo ago), licensed MIT. It adds 17 tokens to every session and 1,427 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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