Agent VMs use a two-layer image:Documentation Index
Fetch the complete documentation index at: https://docs.murmur.dev/llms.txt
Use this file to discover all available pages before exploring further.
- Platform base — Debian 12, Git, Node.js, Claude Code, Codex CLI,
ghCLI. Maintained by Murmur. - Your toolchain — Go, Python, Docker, Chrome, internal SDKs. Built by baking a recipe on top of the base.
image_ref field.
How images are created
Images are produced by the bake process. You define a recipe (base image + provisioning script), then trigger a bake withmurmur bake. The platform creates a scratch VM, runs your script, snapshots the result, and registers the image.
Images are bound to placements — a GCE image baked in one project is not visible from another. When you create a customer placement, you re-bake your recipes so the images exist in your cloud account.
Immutability
Baked images are immutable — you cannot edit one after it is created. To change what’s installed, update your recipe and re-bake. List existing images withmurmur get image.
| Type | Page |
|---|---|
| Reference | image |
| Reference | murmur bake |
| Guide | Custom images |
| Concept | Recipes |
| Concept | Placements |
| Concept | Workspaces |