This change was originally proposed as the root-cause fix for the
2026-07-14 DeviceNotFoundError incident. That diagnosis was wrong: it was
subsequently confirmed only one Host Agent process was running at the time,
ruling out the duplicate-process precondition this change addresses. The
actual root cause was execution.py's create_task_runner() omitting manager=
when wiring TaskRunner (see 08cef7c). Reframe the Why section: this change
stands on its own as independent duplicate-process hardening, not as a fix
for an incident it turned out not to have caused.
Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com>
Proposal, design, spec, and tasks for the per-installation exclusive
instance lock. 15/16 tasks complete; only manual real-environment
verification (5.4) remains, with semantics covered by unit tests in
test_app.py and test_instance_lock.py.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Replace hand-written f-string + html.escape() rendering in the Host Agent
local console with a module-level Jinja2 Environment configured with
select_autoescape(["html","xml"]). XSS safety now holds by mechanism
rather than per-call discipline — every operator-controlled field
(device name, connection_info, task summary, etc.) is escaped by the
engine uniformly.
Eight templates under host_agent/web/templates/ replace the former
_chrome(), _CSS, escape(), and per-page _xxx_body() helpers: base.html
(header/nav/CSS + {% block body %}), login, dashboard (with the polling
<script> preserved byte-identically inside {% raw %}), devices, account,
history, tasks_list, and task_detail. The task-list and task-detail
templates — added by the just-landed task-execution-progress-visibility
change — were also migrated here rather than left in f-string form,
since this change removes the shared helpers they depended on.
URLs, auth/session/CSRF semantics, redirects, and /api/status JSON are
unchanged. 15 new template tests cover render-smoke, XSS probing, script
byte-identity, and no-autoescape-bypass guards. Tasks 8.1-8.6 (manual
browser verification) remain.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Host Agent now persists step-level execution detail locally (via a real
TaskMetadataStore/Timeline wired into TaskRunner) and reports a bounded
in-progress snapshot piggybacked on lease renewal. Cloud persists that
snapshot per active assignment and exposes it through the existing task
list/detail query path; Cloud Console renders it as a live badge. Host
Agent's local console gains authenticated, read-only task list and
detail/timeline pages (same-origin, server-rendered) with inlined
screenshots.
Also fixes a pre-existing gap in the shared Timeline: the actual
per-step LLM prompt is now recorded instead of the task goal, benefiting
both Runtime and Host Agent consoles. When a host uses the cloud planner
transport, each decide call's prompt and resulting tool decision are
durably logged in a new planner_decision_log table (with bounded
retention) and browsable from Cloud Console; direct-transport hosts
explicitly surface a "not reported" state.
Includes Alembic migrations 0008 (progress columns on scheduled_tasks)
and 0009 (planner_decision_log), bounded Host-Agent-local retention,
dual-backend repository parity, and Vitest + pytest coverage. Task 6.5
(manual end-to-end device verification) remains.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implementation verified on macOS (task 6.4 confirmed spawn + adoption
behavior). Archives the change under
openspec/changes/archive/2026-07-14-host-agent-dependency-supervisor/ and
syncs the delta spec into a new main capability at
openspec/specs/host-agent-dependency-supervisor/spec.md (5 baseline
requirements covering opt-in default, adopt-don't-fight, spawn, bounded
backoff restart, and lifecycle tied to Host Agent). openspec validate
--strict passes on the synced spec.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Adds an opt-in dependency supervisor inside the Host Agent that probes,
spawns, and restarts the two local processes the macOS single-machine
real-device workflow depends on: the Appium server (gates Driver.connect())
and the local Runtime API (local inspection). Default-off; gated by
HOST_AGENT_DEPENDENCY_SUPERVISOR_ENABLED plus per-dependency *_SUPERVISED
flags.
Mitigates the live-incident failure mode where forgetting to start Appium
silently keeps devices offline and tasks queued forever with no error
surfaced in Host Agent logs.
Behavior (per openspec change):
- Adopt-don't-fight: probe (TCP + dependency-specific HTTP health check)
before spawn. Healthy listener → adopted (never killed/restarted).
Unhealthy listener → port-conflict error, skip. No listener → spawn.
- Only supervisor-spawned processes are restarted on crash, with capped
exponential backoff (1s/2s/4s/8s, capped at 30s) and a per-process-lifetime
attempt ceiling (HOST_AGENT_DEPENDENCY_RESTART_MAX_ATTEMPTS, default 5).
- Spawn failures (e.g. missing executable) logged distinctly from crashes.
- Graceful stop terminates only spawned children; adopted processes untouched.
- Supervisor starts before the heartbeat loop's first connect_devices() pass
and stops alongside existing heartbeat/console teardown.
Validation: ruff check + format clean, compileall clean, openspec validate
--strict valid. Non-integration suite 503 passed / 44 deselected / 2 failed
(both failures pre-existing from unrelated 03c7c30 LLM_PROVIDER_ENC_KEY;
verified by stashing this change). macOS real-device manual verification
(task 6.4) deferred to a macOS host.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implements all 19 tasks of the cloud-planner-proxy OpenSpec change:
- Cloud API: cloud.planner_config (CloudPlannerConfig, load/build helpers)
reusing runtime.tool_calling_client provider clients (no new dependency
needed -- device-cloud-platform already depends on device-agent-runtime).
- Cloud API: new host-scoped POST /internal/v1/hosts/{host_id}/planner/decide
internal endpoint, reusing existing bearer auth; logs only metadata
(host id, tool name, latency, error class), never prompt/screenshot
content.
- Host Agent: new AI_PLANNER_TRANSPORT config (direct default | cloud) and
host_agent/cloud_planner_client.py::CloudProxyToolCallingClient, a
synchronous ToolCallingClient implementation (structural, not importing
runtime) that calls the new endpoint via its own httpx.Client -- avoids
bridging the async HostAgentClient across the worker-thread boundary
that AIPlanner.plan() runs in (asyncio.to_thread in lease.py).
- Host Agent wiring: create_execution_factories()/_host_agent_planner()
select the cloud-proxy client only when AI_PLANNER_TRANSPORT=cloud;
direct/unset transport is unchanged (still the default).
- Tests: 22 new tests across Cloud API config, the new endpoint, the new
client, and transport-selection wiring; full non-integration suite
(492 tests) passes with no regressions.
- Docs: docs/CLOUD_DEPLOYMENT.md documents the cloud transport, its
trade-offs, and the credential split between Host Agent and Cloud API.
proposal.md/design.md were corrected during implementation to reflect two
findings: no new anthropic/openai dependency is actually needed, and
CloudProxyToolCallingClient uses its own sync httpx.Client rather than a
new HostAgentClient method, per the thread-boundary reasoning above.
- Host Agent now defaults AI_PLANNER_ENABLED=true (opt-out via env),
scoped to apps/device-host-agent/host_agent/execution.py only; the
shared runtime.planner_config default (disabled) is unchanged.
- Add openspec proposal for cloud-planner-proxy: centralize LLM
provider config/credentials on the Cloud Control Plane and let the
Host Agent proxy AI Planner decisions through it instead of holding
provider API keys locally. Proposal only, no implementation yet.
Archives the completed android-driver change (16/16 tasks). Promotes
the driver_type="uiautomator2" scenario into the canonical
driver-registry spec and moves the change artifacts to
openspec/changes/archive/2026-07-13-android-driver/.
Completes task 1.1: verified mobile: clickGesture, mobile: dragGesture,
mobile: pressKey (keycode=3 / KEYCODE_HOME), and the appium:systemPort
capability against the official appium-uiautomator2-driver README and
android-mobile-gestures.md (master, 2026-07), plus the installed
appium-python-client 5.3.1. All four match driver/android_driver.py.
16/16 tasks complete; openspec validate --strict passes.
Host Agent:
- One-time local operator account bootstrap (PBKDF2-HMAC-SHA256, atomic
0600-permission write) gating the daemon's first unattended start via a
new `setup` CLI subcommand.
- Default control-plane URL now https://amcp.home.jerryyan.top (env var
override unchanged).
- Enrollment no longer requires a pre-issued token; falls back to
zero-token self-service enrollment when none is configured.
Cloud control plane:
- CLOUD_SELF_SERVICE_ENROLLMENT_ENABLED (default false) opt-in flag.
- SelfServiceEnrollmentAuthProvider + ChainedEnrollmentAuthProvider:
configured tokens still take priority; self-service only applies when
no token matches, preserving edge-host-enrollment's token-bound path.
- Fixed a latent bug in sql_repository.py::enroll_host: the token-conflict
lookup used `== enrollment_token_digest`, which SQLAlchemy compiles to
`IS NULL` when the value is None, so every self-service enrollment after
the first would have falsely collided with an existing NULL-digest host.
Skipped that lookup entirely when the digest is None.
Docs/deploy: .env.example, compose.yaml, compose.deploy.yaml,
CLOUD_DEPLOYMENT.md, MACOS_IPHONE_SETUP.md updated for the new flag,
URL default, and required `device-host-agent setup` step.
Verification: 494 non-integration tests pass; openspec validate --strict
passes. PostgreSQL-backed contract tests and full manual end-to-end
verification were not run (no Postgres/Docker or reachable cloud-api in
this environment); noted as unchecked in tasks.md 7.2/7.4.
Register `SUPPORTED_DRIVER_TYPES["uiautomator2"]` backed by the new
`AndroidDriver`, mirroring `WDADriver` method-for-method. tap/swipe/home use
the confirmed UiAutomator2 mobile commands (`clickGesture`, `dragGesture`,
`pressKey`); swipe converts `duration_ms` to a drag speed with a zero-distance
guard. Adds 34 mocked unit tests, an env-var-gated integration test, and
corrects the outdated "Android not registered" note in the iPhone setup doc.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Implements the cloud-console OpenSpec change: adds GET /v1/tasks (filterable,
bounded pagination, tasks:read) and GET /v1/tasks/{id}/attempts (404 on unknown
task) to the platform SDK, with matching CloudClient methods and a closed-by-
default CLOUD_CONSOLE_CORS_ORIGINS allow-list wired through CloudControlConfig.
Ships an independent Vue 3 + Vite SPA at cloud-console/ that authenticates with
an operator-supplied bearer token held in sessionStorage, renders tasks with
attempt history, device pool, host registry, and the plugin registry with a
registration form.
Backend test suite: 438 passed (-m "not integration"); cloud-console typecheck
and production build both succeed. PostgreSQL-backed repository tests and
manual end-to-end verification remain pending external infrastructure.
Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
Resolve the previously-open design questions in the android-driver
change by researching the appium-uiautomator2-driver docs and Appium 3
release notes:
- tap -> mobile: clickGesture
- swipe -> mobile: dragGesture (duration_ms converted to speed px/s)
- home -> mobile: pressKey (KEYCODE_HOME)
- port isolation -> appium:systemPort capability
- Appium 3 breaking changes confirmed to not affect this design
Updates design.md (Decisions/Risks/Open Questions/Migration Plan) and
tasks.md (section 1 and tasks 2.1/2.4/4.1) accordingly.
q792602257andClaude Sonnet 5