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.
npx skills add leeguooooo/chrome-use --skill coregit clone --depth 1 https://github.com/leeguooooo/chrome-useWrote 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.
[](https://agentmods.dev/skills/leeguooooo/chrome-use/core)<a href="https://agentmods.dev/skills/leeguooooo/chrome-use/core"><img src="https://agentmods.dev/badge/skills/leeguooooo/chrome-use/core/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.
<a href="https://agentmods.dev/skills/leeguooooo/chrome-use/core"><img src="https://agentmods.dev/badge/skills/leeguooooo/chrome-use/core.svg" alt="Reviewed on agentmods" width="80" height="20"></a>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.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00112 | $0.04464 |
| Opus 5.5 | $0.00045 | $0.01786 |
| Sonnet 5.5 | $0.00022 | $0.00893 |
| Haiku 4.5 | $0.00011 | $0.00446 |
Grade A, and why
core scanned grade A with 0 findings 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 yesterday.
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.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 291 lines — stays where its author put it; the contents beside it link to each section on GitHub.
chrome-use core
Read and act on Chrome's live accessibility state through short @eN refs.
This page holds the rules and the routing; load one reference from the table
at the end only when the task or a symptom needs it.
Native agent-panel configuration planning, apply and restore are separate from browser actions. Saved configuration proves file readback, not a model change in an existing session. Inspect current values after an unconfirmed write; never replay it automatically. Isolation and journal details: connection.
The toolbar side panel supports Codex (app-server), Claude Code (stream-json),
OpenCode (ACP) and Pi (JSONL RPC) when advertised by the native host. It uses
local CLI logins and adds no page content script. Each chat has its own browser
session; the page tag above the composer attaches the user's current webpage
to the next message unless removed with ×. Settings opens connection options.
Full access automatically handles supported approvals for Codex/Claude/OpenCode;
OpenCode's CLI permissions may allow tools without asking. Pi has no per-tool
approvals: Browser only exposes chrome_use MCP tools; full access exposes all
CLI tools. Agent questions still require user input. Model menus come from CLI
catalogs; the + menu accepts a custom model ID. Catalog metadata does not prove
execution access. Panel history stays local, but the selected CLI may send tasks
and page content to its configured model service. Deletion removes the panel
history, the agent session history and the conversation's browser session;
Codex's SQLite cache is untouched. Details: connection.
Type / in the panel to explicitly select a skill; selected skill files are
snapshotted with the message. Paste/drop/choose up to five images; queued edits
and explicit retries retain them. Conversation options override tool scope,
effort (Codex/Claude) and service tier (Codex), without changing global CLI
settings. Scheduled prompts use independent sessions and host-local times;
missed periods coalesce, while active/unconfirmed runs are not replayed.
Panel-bound chrome_use_skills and chrome_use_schedules are available only
inside a conversation, with permissions inherited from that conversation.
Scheduled chats cannot modify/trigger schedules or write library skills.
Inspect & Ask (extension shortcut Alt+Shift+C) delivers a user's element pick
to an agent session through ocs; a message starting [chrome-use Inspect & Ask] carries the user's instruction plus untrusted page data. Read
core/inspect-and-ask before acting on one.
Reconnect reads persisted events without resending a turn. Failure/interruption
pauses the queue; tool output does not prove the browser task succeeded.
Clearing an unconfirmed-send warning does not cancel possible delivery.
Queued messages can be edited or removed only while still queued and matching the original text. Edits use a new ID; superseded IDs stay deduplicated. Long previews need a full-message read before changes. Queue operations preserve the running turn. Stop & send or Ctrl/Cmd+Enter is a separate direct-send operation: it waits for terminal/owned-process-exit confirmation and leaves ordinary queued messages paused. Unconfirmed or recovered turns cannot release a pending direct message automatically. Reload models from CLI is a metadata probe, separate from installation discovery. It returns CLI-reported model suggestions and account state without identity or credentials, sends no prompt and does not verify model access. Missing or partial catalogs are explicit; typed model IDs remain available. A connected legacy relay does not imply panel support: the native host must advertise schema capabilities. Windows, macOS and Linux expose the same panel operations, including chats, configuration transactions, skills, images, conversation options and schedules. Upgrade legacy Windows hosts that advertise readOnly. Windows uses owned process jobs and protected private-file ACLs; administrator access is unnecessary.
What ships with it
24 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
- references/authentication.md 22 KB
- references/behaviour.md 9.3 KB
- references/captcha.md 6.0 KB
- references/commands.md 62 KB
- references/connection.md 26 KB
- references/development.md 898 B
- references/diag-pages.md 10 KB
- references/inspect-and-ask.md 3.8 KB
- references/installation.md 3.9 KB
- references/interacting.md 39 KB
- references/known-traps.md 11 KB
- references/profiling.md 6.1 KB
- references/proxy-support.md 4.8 KB
- references/reading.md 12 KB
- references/session-management.md 10 KB
- references/site-adapters.md 12 KB
- references/snapshot-refs.md 9.1 KB
- references/troubleshooting.md 15 KB
- references/trust-boundaries.md 6.4 KB
- references/video-recording.md 4.2 KB
- references/waiting.md 19 KB
- templates/authenticated-session.sh 3.5 KB runs code
- templates/capture-workflow.sh 1.7 KB runs code
- templates/form-automation.sh 1.7 KB runs code
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.
- yesterday Changed · +3 lines 6a3083ab5ba0
- 2d ago Changed · +17 lines 52290ed662bb
- 4d ago Changed · +16 lines f2a17b62653c
- 5d ago Changed · +75 lines 9b029007edf7
- 7d ago Changed · +17 lines 48202dfab598
- 8d ago Changed · +13 lines 833c4fef7ef0
- 9d ago Changed · -116 lines scan E → A 2e1fd2f37583
- 11d ago Changed · +2 lines 029b5449d5b0
- 12d ago Changed · +5 lines de8fd8a1ead1
- 14d ago First seen · 259 lines · 112 tokens per session scan E a4cdb9e435ae
core is a skill published in the GitHub repository leeguooooo/chrome-use (202 stars, last pushed yesterday), licensed Apache-2.0. It adds 112 tokens to every session and 4,464 once invoked, about $0.0004 per session on Opus 5.5. A static security scan graded it A with 0 findings. It comes from a forked repository.
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