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— Agent harnesses ▸ ACP ▸ Cursor

Cursor, inside Glueprint.

Cursor's coding agent. Glueprint runs Cursor over the Agent Client Protocol it already speaks — adding live sessions on every device, approvals from your phone, parallel worktrees, schedules, and memory.

Cursor

Cursor

Agent
Cursor
Maintainer
Cursor
Connection
Agent Client Protocol
Wire format
JSON-RPC 2.0 over stdio
Registry version
2026.07.01
License
proprietary

What is Cursor?

The Cursor CLI agent is a command-line coding agent that exposes an Agent Client Protocol interface through the agent acp command. It communicates over JSON-RPC 2.0 with newline-delimited JSON on stdio, and offers three modes: agent with full tool access, plan with read-only behavior, and ask for read-only Q&A. It supports session creation, loading, and streaming updates, plus tool permission requests and Model Context Protocol servers configured in .cursor/mcp.json.

  • Three modes: agent, plan, and ask
  • JSON-RPC 2.0 over newline-delimited stdio
  • Permission requests before tool execution
  • MCP servers from project or user config
  • Session create, load, and streaming updates

Best for Developers integrating Cursor's command-line agent into custom clients and editors.

Sourced from Cursor's official site .

How Glueprint runs Cursor

Cursor connects over the open Agent Client Protocol — one generic adapter implements the protocol's client side, so Cursor gets the same surfaces as every other harness:

01

Glueprint spawns Cursor, not a fork

Glueprint finds the Cursor binary you installed and spawns it, then speaks the Agent Client Protocol — JSON-RPC 2.0 over stdio — to drive it. Same CLI, same authentication; Glueprint just wraps the session.

02

Output streams as structure

Message chunks, tool calls, and tool-call updates from Cursor arrive as protocol notifications and render as the same live, typed timeline every Glueprint session gets — watchable from desktop, browser, or phone.

03

Permission requests become approval cards

When Cursor asks to write a file or run a command, the protocol's permission request surfaces as an inline approval card on whatever device you're holding. Approve, deny, or auto-allow per tool.

04

One adapter, the whole fleet

Because Cursor speaks ACP, adding it is a catalog entry, not an engineering project — the same adapter runs every other agent in the registry, so you can tile them side by side.

What Cursor gains inside Glueprint

Everything below works with the Cursor CLI you have today — no migration, no new account for the model, no lock-in. Uninstall Glueprint and your terminal workflow is exactly as it was.

Live sessions on every surface

Watch every Cursor prompt, tool call, and diff stream in real time — desktop, web portal, iOS and Android. The session runs on your machine; the view follows you.

Approve from your phone

Permission prompts arrive as approval cards wherever you are. Kick off a refactor at your desk, approve the file writes from the couch.

Parallel sessions across worktrees

Run several Cursor sessions side by side, each in its own git worktree, with diffs, history, and a three-pane conflict resolver alongside.

Mix harnesses in one mosaic

Tile Cursor next to Claude Code, Codex, and the rest of the ACP fleet in the Command Center. The protocol differs; the surface doesn't.

Cursor as a persistent assistant

Promote it to an assistant: persona, constitution, long-term memory, and a daily journal on disk, loaded into every wake.

Routines on a schedule

Wake it on cron: triage the inbox every 30 minutes, sweep PRs at 9am, run the nightly cleanup. Quiet hours and watermarks prevent re-fires.

Analytics per harness

Messages, sessions, and output tokens computed from session logs — compare Cursor against Claude Code, Codex, and your other ACP agents.

Encrypted to the relay

Remote viewing rides AES-256-GCM envelope encryption. The relay routes; it cannot read.

Cursor + Glueprint, asked plainly

Can I run Cursor with Glueprint?

Yes. Cursor is registered in the official Agent Client Protocol registry, and Glueprint implements the protocol's client side. It spawns the Cursor CLI you already installed and drives it over JSON-RPC 2.0 — adding live sessions, inline approvals, worktrees, and remote control.

Do I need a separate Cursor subscription or API key?

No. Glueprint doesn't resell model access. Cursor authenticates exactly the way its vendor designed — its own login, subscription, or API key. Glueprint spawns the binary and speaks the protocol; it doesn't sit between you and the model provider.

Can I run Cursor from my phone?

Sessions always run on your machines — a laptop, a desktop, or a server with the headless daemon. The iOS and Android app streams Cursor sessions live, lets you send follow-ups, and handles permission approvals from anywhere.

Can I run Cursor next to Claude Code and Codex?

Yes — that's the point. Each harness is an adapter; sessions from all of them tile into the same Command Center, share the same task boards, and roll up in the same per-harness analytics.

Is my session content private?

Yes. Remote viewing routes AES-256-GCM-encrypted envelopes through the relay, which stores a wrapped key it cannot open — decryption happens on your devices. On the free local tier, session content never leaves your machine at all. See security.

— THE LOCAL TIER IS FREE

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