- New internal API route POST /internal/v1/hosts/{host_id}/tasks/{task_id}/cancel,
authenticated via the host's own bearer credential (authorize_host) with an
ownership check, since host tokens carry no scopes and cannot reach the
public SDK's tasks:submit-scoped cancel endpoint.
- HostAgentClient.cancel_task() calls the new internal route directly.
- create_console_app() gains a cancel_task callable with automatic default
wiring from host_client, so production app.py needs no changes.
- Local console: POST /tasks/{task_id}/cancel route resolves the local
execution id to its Cloud source_task_id before cancelling, and the task
detail page/template show a Cancel button plus notice/error banners.
- Tests across all three layers: internal API route, Jinja2 template
rendering, and FastAPI console route behavior.
Fixes issue 3: the host-agent console showed OCR results but never real
UI-tree data, because _ui_tree_nodes() checked for a get_ui_tree/ui_tree
tool action that has never existed anywhere in the codebase.
- storage/timeline.py: add a ui_tree_results field to TimelineRecord and
Timeline.append(), mirroring the existing ocr_results field.
- runtime/task.py: _append_timeline() now extracts scene.elements with
source == "ui" into ui_tree_results (scene_builder.build_scene() already
preserved these; they were just never persisted).
- host_agent/web/app.py: _ui_tree_nodes() reads the new field directly
instead of the dead tool-action check. New _overlay_payload() exposes
each step's scene dimensions and fused element list for client-side
rendering.
- task_detail.html: adds a toggle to overlay OCR (orange) and UI-tree
(blue) bounding boxes on the before-action screenshot, plus a visual
marker for the actually executed action (tap circle, or an animated
swipe path) using an SVG viewBox so no manual coordinate-scaling JS is
needed. Legacy/incomplete records degrade to no overlay, never an error.
Also corrects openspec/specs/runtime-task-evidence and
host-agent-console-task-pages, which had encoded the same nonexistent-tool
assumption, via the new host-agent-console-visual-evidence change.
600 tests passing; ruff/compileall/openspec validate all clean.
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>
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