Atlas

Atlas

Source control for coding agents.

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Atlas is source control for coding agents. Every agent run produces checkpoints: commits are linked back to the session that made it alongside the prompts, tool calls, and reasoning. You see which agent did exactly what and why.

Run Claude Code, Codex, Atlas's own agent, or anything from the ACP registry side by side against the same codebase, with shared memory so switching agents mid-task doesn't mean starting over.

• Every commit, explained. A checkpoint links a commit back to the session that produced it: prompts, tool calls, and file changes kept together, queryable months later.
• Run any agent, side by side. Claude Code, Codex, Atlas's own agent, and the wider ACP registry, all in the same window, against the same codebase. Switching agents mid-task doesn't mean starting over.
• One memory, every agent. A decision Claude Code made shows up in Codex's next prompt. Plans, file changes, failures, and architecture notes are shared automatically, matched on-device against what you're asking about.
• Your notes are agent context. Markdown in .atlas/knowledge/, plus the CLAUDE.md and AGENTS.md you already wrote, feed every agent in the project.
• @ anything into a prompt. Files, folders, symbols, branches, commits, notes, papers, and past sessions resolve locally before the prompt is sent.
• Local by default. Code, notes, and sessions stay on your machine. Sign in and create an organization when you want to sync across a team.

Download

Grab the latest build from tryatlas.cc or the releases page — a .dmg for macOS (Apple Silicon or Intel), an .msi for Windows.

[!NOTE] macOS 13+ and Windows 10+ (x64) are the supported platforms. Linux builds from the same Tauri codebase but is untested — see Build from source.

Why Atlas

Agents now write a large share of the code and keep none of the reasoning behind it. The prompt that produced a change, the tool calls it made, the approach it tried first and abandoned — all of it lives in a scrollback buffer until the buffer scrolls.

What survives is a commit message, written by a model, summarizing a diff. Months later that is the only record of why the code looks the way it does.

Three problems follow, and every editor designed before agents has all three:

• Agents start from zero every session. The context you established yesterday is gone, and rebuilding it is your job, every time.
• Switching agents loses the thread. Claude Code cannot read Codex's history, and Codex cannot read Claude Code's. Changing agent mid-task means starting the explanation over.
• Context lives in ten places. The knowledge base, CLAUDE.md, AGENTS.md, and each agent's own memory files. Nothing reads all of them at once.

Two commitments shape how Atlas answers them: