---
name: parsec-testing-caveat
description: Brandon often tests sauna via Parsec into HFENDULEAM — cursor/input observations can be contaminated
metadata: 
  node_type: memory
  type: project
  originSessionId: bbe89923-5609-45ec-8bdd-3f0bf53373bf
---

Brandon remote-controls the dev machine HFENDULEAM via Parsec while testing sauna (2026-06-11 session). This contaminated a whole dual-cursor bug thread: the "second cursor" was Parsec's client-side cursor, and the "stuck at screen edge" cursor was the host-side OS cursor.

**Why:** Parsec hides the host cursor and renders its own client-side; sauna's capture overlay used to keep drawing during that hide (fixed: GetCursorInfo authority with SHOWING/SUPPRESSED/null-hCursor gates, commit a209c01/29af598).

**How to apply:** when a field report about cursors, input lag, or display behavior comes from "this machine" while Claude is working on it, ask whether the observation was made through Parsec or at the physical headset/monitor before trusting it. Related: [[sceltouin-rig]], [[enlyzeam-field-rig]].