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— Agent harnesses ▸ ACP ▸ Dirac

Dirac, inside Glueprint.

Reduces API costs by more than 50%, produces better and faster work. Uses Hash anchored parallel edits, AST manipulation and a whole lot of neat optimizations. Fully Open Source. Glueprint runs Dirac over the Agent Client Protocol it already speaks — adding live sessions on every device, approvals from your phone, parallel worktrees, schedules, and memory.

Dirac

Dirac Delta Labs

Agent
Dirac
Maintainer
Dirac Delta Labs
Connection
Agent Client Protocol
Wire format
JSON-RPC 2.0 over stdio
Registry version
0.4.13
License
Apache-2.0

What is Dirac?

Dirac is an open-source coding agent built by Dirac Delta Labs as a fork of the Cline project, released under the Apache 2.0 license. It is offered both as a VS Code extension and as a CLI installed via 'npm install -g dirac-cli'. Its design centers on token efficiency: hash-anchored edits that target changes by stable line hashes rather than line numbers, AST-based structural refactoring, multi-file batching that edits many files in a single model round trip, and context optimizations such as file-skeleton extraction and symbol-dependency tracking.

  • Open source, Apache 2.0, fork of Cline
  • Hash-anchored edits using stable line hashes
  • AST-based structural refactoring
  • Batches edits across many files per model call
  • Available as VS Code extension and CLI

Best for Developers wanting a cost-efficient, edit-precise agent for large multi-file changes.

Sourced from Dirac's official site and repository.

How Glueprint runs Dirac

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

01

Glueprint spawns Dirac, not a fork

Glueprint finds the Dirac 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 Dirac 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 Dirac 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 Dirac 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 Dirac gains inside Glueprint

Everything below works with the Dirac 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 Dirac 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 Dirac 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 Dirac next to Claude Code, Codex, and the rest of the ACP fleet in the Command Center. The protocol differs; the surface doesn't.

Dirac 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 Dirac 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.

Dirac + Glueprint, asked plainly

Can I run Dirac with Glueprint?

Yes. Dirac is registered in the official Agent Client Protocol registry, and Glueprint implements the protocol's client side. It spawns the Dirac 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 Dirac subscription or API key?

No. Glueprint doesn't resell model access. Dirac 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 Dirac 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 Dirac sessions live, lets you send follow-ups, and handles permission approvals from anywhere.

Can I run Dirac 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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