63 lines
2.5 KiB
Markdown
63 lines
2.5 KiB
Markdown
# Constitution
|
|
|
|
These invariants are durable project rules. Every future milestone change must
|
|
state in its `design.md` how it preserves them.
|
|
|
|
## Device Boundary
|
|
|
|
`Driver` is the only device-capability contract. Concrete drivers translate
|
|
external SDKs into that contract and do not own task, workflow, or planner
|
|
state.
|
|
|
|
Drivers are stateless with respect to agent tasks. A driver may hold a live
|
|
connection handle, but task memory, retries, plans, and workflow state belong
|
|
above the driver layer.
|
|
|
|
## Tool Boundary
|
|
|
|
`tools/` exposes device capabilities to the runtime. Tools call into
|
|
device/driver capabilities through abstractions and never import a concrete
|
|
driver such as `WDADriver`.
|
|
|
|
## Perception Boundary
|
|
|
|
`Scene` is the only perception artifact the LLM sees, with one narrow,
|
|
explicit exception: the runtime-layer AI `Planner` (and only that Planner)
|
|
may additionally receive the raw screenshot bytes for the current step,
|
|
alongside `Scene`, to support vision-grounded decision-making. No other
|
|
layer — `api`, `tools`, `perception`, `storage`, or any other LLM consumer —
|
|
may receive raw screenshot bytes; every other perception consumer still
|
|
receives `Scene` only. `Scene` itself is still produced exclusively through
|
|
`PerceptionProvider`, not by direct calls to OCR, UI tree parsing, or
|
|
`scene_builder` from runtime and API layers.
|
|
|
|
## Runtime Boundary
|
|
|
|
The Planner produces a plan. The Executor is the only component that calls
|
|
tools and handles retries for tool execution.
|
|
|
|
LLM dependencies enter at `runtime` through Planner behavior. HTTP and MCP
|
|
dependencies enter at `api`. No LLM, HTTP, or MCP dependency may appear in
|
|
`core`, `driver`, `device`, or `tools`.
|
|
|
|
## Packaging Boundary
|
|
|
|
The repository is a uv workspace with `device-agent-runtime` as the root
|
|
member and outer platform packages as separate members. The cloud platform is
|
|
owned by `packages/cloud-platform` and may depend on the Runtime through an
|
|
explicit workspace source; the Runtime distribution must never depend on or
|
|
package `cloud`.
|
|
|
|
All Python members share the committed root `uv.lock`. The Vue/Vite `console/`
|
|
remains outside the Python workspace and keeps its independent npm lifecycle.
|
|
|
|
## Change Discipline
|
|
|
|
Future changes must keep the dependency direction:
|
|
|
|
`core` -> `driver`/`device` -> `tools` -> `perception` -> `storage` -> `runtime`
|
|
-> `api` -> optional outer workspace applications.
|
|
|
|
When a change needs a new external integration, add it at the adapter layer
|
|
that owns that concern, not at the domain or device boundary.
|