* refactor(apple): colocate the XCUITest runner client into packages/platform-apple (#2040) Moves src/platforms/apple/core/runner/ (34 modules + apple-runner-platform.ts and the 30 runner test suites) into packages/platform-apple/src/runner/ — Apple mechanics live in the Apple package. Host capabilities (exec, diagnostics, retry, process probes, locks, Apple tooling, physical-device control) enter through the package-owned AppleRunnerHost port; the root composition module src/platforms/apple/core/runner-client.ts constructs the client exactly once and re-exposes the bound operations under their historical names. R13 admits the transitional state deliberately: the family exports its root façade plus exactly the enumerated ./runner, ./runner/client, and ./runner/test-host subpaths; the ./runner façade subpath is the recorded #1983 seam for unmigrated root consumers; ./runner/client has one composition root and ./runner/test-host one vitest installer; the runner subtree may own its cache files and sockets while raw process primitives stay banned. When #1983 completes, the subpaths and every subtree exemption are deleted and the family returns to a single implementation-lazy façade export. * docs(adr): model the runner subtree as a durable platform-owned facet Review correction on #2050: the sunset story attributed the runner-consumer migration to #1983, which owns snapshot/presentation vocabulary — not the runner's daemon/root consumers — so that event cannot delete the ./runner subpaths or the subtree exemptions. Reword ADR-0019, R13, and the gate comments: the facet is the intended ownership model, its seam is enumerated and pinned (exact export list, one client composition root, one test-host installer, raw-process ban, eager-closure pins), and the seam narrows only if a real runner-consumer migration retires the direct consumers. The declaration mechanism stays apple-specific until another family needs a mechanics facet. No behavior change; identifiers and comments only.
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agent-device iOS Runner
This folder contains the lightweight XCUITest runner used to provide element-level automation for Apple-family targets.
Intent
- Provide a minimal XCTest target that exposes UI automation over a small HTTP server.
- Allow local builds via
xcodebuildand caching for faster subsequent runs. - Support simulator prebuilds where compatible.
Status
Current internal runner for iOS, tvOS, and macOS desktop automation.
Protocol and maintenance references:
- Protocol overview:
RUNNER_PROTOCOL.md - TypeScript client:
../../packages/platform-apple/src/runner/runner-client.ts - Swift wire models:
AgentDeviceRunner/AgentDeviceRunnerUITests/RunnerTests+Models.swift
UITest Runner File Map
AgentDeviceRunnerUITests/RunnerTests is split into focused files to reduce context size for contributors and LLM agents.
RunnerTests.swift: shared state/constants,setUp(), andtestCommand()entry flow.RunnerTests+Models.swift: wire protocol models (Command,Response, snapshot payload models).RunnerTests+Environment.swift: environment and CLI argument helpers (RunnerEnv).RunnerTests+Transport.swift: TCP request handling and HTTP parsing/encoding.RunnerTests+CommandExecution.swift: command dispatch (execute*) and command switch.RunnerTests+Lifecycle.swift: activation/retry/stabilization and recording lifecycle helpers.RunnerTests+Interaction.swift: tap/drag/swipe/type/home/rotate/app-switcher helpers.RunnerTests+Navigation.swift: back/navigation-control helpers.RunnerTests+Snapshot.swift: fast/raw snapshot builders and include/filter helpers.RunnerTests+SystemModal.swift: SpringBoard/system modal detection and modal snapshot shaping.RunnerTests+ScreenRecorder.swift: nestedScreenRecorderimplementation.
Snapshot Strategy
iOS snapshots have two explicit public capture modes:
- full/raw snapshots use recursive XCTest snapshots for rich hierarchy and diagnostics;
- interactive snapshots filter the same visible tree down to agent-facing refs.
Some iOS apps expose accessibility trees that lower-level AX services can inspect but XCTest cannot
serialize reliably. In those cases interactive snapshots may return a sparse root quickly, while
full snapshots preserve the XCTest error. A penalized simulator can recover through private AX;
physical devices use a short XCTest probe because no non-XCTest semantic backend is available
there. See
../../docs/adr/0004-ios-snapshot-backend-strategy.md
for the backend boundary and future simulator AX-service direction.
Protocol Notes
- The daemon posts JSON commands to
POST /commandon the runner's local HTTP listener. - The runner responds with a JSON envelope shaped as
{ ok, data?, error? }. - The protocol is internal to
agent-device; when adding or renaming commands, update both wire models and the protocol tests/docs in the same change.