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Explain native inspection failure when the desktop or target window becomes unavailable

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Bewertung

Schwierigkeit
4/5
Geschätzter Aufwand
3-5 Tage
Anfängerfreundlichkeit
45/100
Issue-Typ
Bug
Klarheit
Größtenteils klar
Aktivitätsstatus
Aktiv
Tech-Stack
macos, typescript
Bereich
desktop

Rechercherichtung

Start from the native inventory code that emits is_on_screen, observation_capability: pixels_only, and observation_reason: no_matching_accessibility_window, plus where DESKTOP_ERROR: AX tree incomplete is produced. Read the shipped work in #71 and #87 and the sparse-tree report in #73 to see what states are already distinguished. Done means a reliable classification of offscreen/other-desktop vs unavailable desktop vs incomplete Accessibility, an actionable agent-facing explanation, and a recovery check that requires fresh observation without switching windows or stealing focus.

Vom Indexierungsmodell aus dem Issue-Text verfasst.

Beschreibung

Status (Oct 6)

Shipped: pixels-mode inspection and target availability reporting (#71), and typed target_unavailable refusal for a known locked session with unlock-and-refresh guidance (#87, details). Remaining: a reliable distinction and recovery path for an offscreen/other-desktop target versus an unavailable desktop versus incomplete Accessibility, sparse initial WKWebView Accessibility trees (seen in #73), and the real recovery check below. The Chrome window-title mismatch is tracked separately in #113.

Original report

During real desktop-action dogfooding for #8 / #63, native inspection became unavailable after previously passing against the same live Ace-dev process and window. The agent received an incomplete Accessibility-tree error without an actionable explanation of target availability.

Observed on the signed macOS development app:

  • The real local pi click/type/key/button workflow and delivered-input Stop/restart checks had passed.
  • A subsequent local Workers/Durable Objects run passed its seed native inspection, then two model desktop_inspect calls failed with DESKTOP_ERROR: Warning: AX tree incomplete at incomplete accessibility read.
  • Fresh native inventory still returned the same process instance/window and bounds, with is_minimized: false, but is_on_screen: false, observation_capability: pixels_only, and observation_reason: no_matching_accessibility_window. Inventory itself reported complete.
  • Codex computer use could still read and capture that test window. Its Raise and Ace's Show Ace action did not restore native availability in the subsequent inventory.
  • No mutation ran in the failed hosted workflow. No evidence establishes whether a Space/desktop/controlled-surface change or another macOS condition caused the availability change; this is not yet a confirmed hosted-transport defect.

Expected: give the agent a bounded, useful explanation when native window/Accessibility availability changes, retain the exact target, and require a fresh observation when the target is available again. Do not silently switch to another window, steal focus, or replay uncertain input as recovery.

Investigate which native state reliably distinguishes an offscreen/other-desktop target, a locked/unavailable desktop, and incomplete Accessibility. Add a real recovery check under #8's visual targeting and longer-workflow slice. Keep the unavailable-desktop limitation explicit until that check passes.

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TypeScript
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