Where everything fits

How to read it

• Follow the full-width boxes from top to bottom. You use a coding agent or assistant. It runs on an agent framework, which reaches company knowledge and tools and sends each request to a model, directly or through an optional gateway or proxy.
• The indented box joined to a step by a dashed arrow works next to it: code review checks what the agents change, sandboxes give each run a safe place, and skills and specs hold the instructions the agents follow.
• Models run in one of two places. Model hosting is a server you run, on your own machine, in a container or in your own cloud account; a cloud provider runs its models on its own servers. The hybrid pages follow what you have to run: Hybrid on your own machine for what you install, Hybrid in a container environment you run for services in containers and inference servers, with the container step drawn, and Hybrid as a cloud service for what the vendor runs.
• The band at the bottom holds the four layers that touch the whole stack: testing agent output, catalogs and registries, distribution to teams, and security and secrets.

The twelve layers

1. Coding agents and assistants: What people use to work with agents (52 products)
2. Code review: Tools that review pull requests and code changes (4 products)
3. Agent frameworks and runtimes: What runs multi-step work and picks up after a failure (21 products)
4. Sandboxes for agents: A safe place for each run, not someone's laptop (5 products)
5. Company knowledge for agents: Where agents get facts and reach your systems (18 products)
6. Skills and specs: The instructions agents follow (14 products)
7. Model access and routing: One way in to many model providers (18 products)
8. Model hosting: Running models yourself, or buying inference (18 products)
9. Testing agent output: Tracing, scoring and test runs (7 products)
10. Catalogs and registries: Which agents and tools exist, and which version (7 products)
11. Distribution to teams: Getting skills and tools onto people's machines (1 product)
12. Security and secrets: Credentials agents use without holding them (1 product)