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Description

Keelen operates as an independent coding loop designed to transform open-ended requests into a structured and prioritized roadmap. It then subdivides items from this roadmap into development-ready tasks complete with acceptance criteria, executing each task in a secure, isolated VM environment using your designated credentials from Claude, Codex, GLM, or Kimi, ultimately producing a merged pull request or retaining it for review based on your settings. Every modification undergoes a series of five verification checkpoints prior to merging: an initial red-first test proof, a separate adversarial review of the changes by a model that lacks context from the preceding run, the execution of the project’s own test suite on a fresh checkout, a CI-green mandate, and a designated review period before automated merging is allowed. Importantly, the process is structured to ensure that no checks are compromised to achieve a green status. Each iteration is conducted in a temporary, non-root VM that is eliminated at the conclusion of the run, featuring a deny-by-default policy on network access. Additionally, the GitHub tokens utilized for each run are limited in scope to a single repository. It's essential to note that Keelen does not function as an IDE copilot nor as a chat interface; its capabilities are distinctly designed to automate and streamline the coding workflow.

Description

Muse Code is a beta terminal coding agent from Meta designed to help developers complete complex software engineering work across large codebases. Powered by Muse Spark 1.2, the agent can plan repository changes, write code, run validation steps, and coordinate persistent subagents for difficult development tasks. Muse Code uses a simple main agent loop supported by async background agents that remain active throughout each session. These background agents can gather information, carry out next steps, and decide when to report back to the main agent, reducing latency and unnecessary user steering. The runtime is built around a local event log where every model call, tool run, approval, and edit is appended. This event log makes Muse Code replay-exact and restart-safe, allowing it to resume from the point of failure after a crash. Muse Code also ships with default skills, including /plan, /grill, and /goal, to support structured planning, plan validation, and objective completion. It can be installed on macOS or Linux and is integrated with Meta’s AI developer ecosystem. By combining terminal-based coding, persistent subagents, replay-safe execution, bundled skills, and Muse Spark 1.2, Muse Code helps developers automate larger and longer software engineering workflows.

API Access

Has API

API Access

Has API

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Integrations

Meta AI
Muse Glimmer
Muse Spark
Muse Spark 1.1
Muse Spark 1.2

Integrations

Meta AI
Muse Glimmer
Muse Spark
Muse Spark 1.1
Muse Spark 1.2

Pricing Details

$29/month
Free Trial
Free Version

Pricing Details

$1.25 per 1M tokens (input)
Standard pricing: $1.25 per million input tokens and $4.25 per million output tokens

Discounted "contributor" tier costing $0.10 per million input tokens and $0.20 per million output tokens for users who agree to share feedback to improve the AI.
Free Trial
Free Version

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Deployment

Web-Based
On-Premises
iPhone App
iPad App
Android App
Windows
Mac
Linux
Chromebook

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Customer Support

Business Hours
Live Rep (24/7)
Online Support

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Types of Training

Training Docs
Webinars
Live Training (Online)
In Person

Vendor Details

Company Name

Keelen

Founded

2026

Country

United States

Website

keelen.ai/

Vendor Details

Company Name

Meta

Founded

2004

Country

United States

Website

meta.ai

Product Features

Alternatives

No Alternatives

Alternatives

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