Arc Browser MCP
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| ARC_MCP_ENABLE_JAVASCRIPT | No | Set to '1' to enable the arc_execute_javascript tool. | 0 |
Instructions
Guidance the server publishes about itself, which clients place ahead of the tool catalog so the model reads it before choosing anything.
This server publishes no instructions, or was last inspected before Glama recorded them.
Capabilities
Features and capabilities supported by this server
Protocol revision2025-11-25
| Capability | Details |
|---|---|
| tools | {
"listChanged": true
} |
| logging | {} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| extensions | {
"io.modelcontextprotocol/ui": {}
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| arc_get_overviewA | Get compact Arc inventory, counts, source health, and live context when available. |
| arc_query_tabsB | List, filter, and search Arc tabs using the fast local Arc index. |
| arc_get_tabA | Get a full normalized Arc tab record by explicit tab id. |
| arc_get_sidebar_treeA | Get Arc Space, pinned, unpinned, and folder hierarchy. |
| arc_search_historyC | Search Arc Chromium history snapshots across local profiles. |
| arc_analyze_tabsA | Analyze Arc tabs for duplicates, stale tabs, junk candidates, and missing URLs. |
| arc_create_tabC | Create a new Arc tab in an explicit Space and return its verified tab id. |
| arc_focus_spaceB | Focus an Arc Space by explicit id. This changes visible Arc state. |
| arc_select_tabB | Select an Arc tab by explicit id. This changes visible Arc state. |
| arc_open_urlB | Navigate a specific Arc tab, or the active tab when explicitly omitted. |
| arc_reload_tabsA | Reload one or more Arc tabs by explicit tab id. |
| arc_close_tabsA | Close one or more Arc tabs by explicit tab id. Use dry_run to preview. |
| arc_execute_javascriptB | Execute JavaScript in an Arc tab. Disabled unless ARC_MCP_ENABLE_JAVASCRIPT=1. |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
TDQS
Scored across 13 tools
Each tool targets a distinct operation: analyze, close, create, execute JS, focus space, get overview, get sidebar tree, get tab, open URL, query tabs, reload tabs, search history, select tab. No overlapping purposes; an agent can clearly differentiate based on names and descriptions.
All tools follow the consistent pattern `arc_verb_noun` with snake_case. Verbs are appropriately chosen (e.g., create, close, query, select) and nouns match the resource (tab, tabs, space, url). Singular/plural variations are logically applied.
13 tools is well-scoped for a browser automation server. Each tool serves a clear purpose without redundancy, covering tab lifecycle, space navigation, and basic utility like history search and JavaScript execution.
The tool set covers core tab and space operations (CRUD, navigation, analysis, history). Missing features like bookmark management or space creation are minor gaps, but the surface is sufficient for typical automation tasks.