From fdeede8796d3e6311ffed66f246a352d26e5ca65 Mon Sep 17 00:00:00 2001 From: Erik Date: Sun, 31 May 2026 10:14:22 +0200 Subject: [PATCH] =?UTF-8?q?docs(render):=20Phase=20U.4c=20=E2=80=94=20anno?= =?UTF-8?q?tate=20Task=203=20with=20U.4c-1=20evidence=20(H2=20selected)?= MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Co-Authored-By: Claude Opus 4.8 (1M context) --- ...-05-31-phase-u4c-stabilize-portal-visibility.md | 14 +++++++++++++- 1 file changed, 13 insertions(+), 1 deletion(-) diff --git a/docs/superpowers/plans/2026-05-31-phase-u4c-stabilize-portal-visibility.md b/docs/superpowers/plans/2026-05-31-phase-u4c-stabilize-portal-visibility.md index ad6cad7..dadf40b 100644 --- a/docs/superpowers/plans/2026-05-31-phase-u4c-stabilize-portal-visibility.md +++ b/docs/superpowers/plans/2026-05-31-phase-u4c-stabilize-portal-visibility.md @@ -219,7 +219,19 @@ Co-Authored-By: Claude Opus 4.8 (1M context) " --- -## Task 3: Layer 2 — ground set membership in the PVS (the fix; oracle-ported, gated by Task 1) +## Task 3: Layer 2 — port retail InitCell `portal_side` sidedness (the fix; oracle-ported) + +> **EVIDENCE UPDATE (2026-05-31, Task U.4c-1 ran):** the flap was characterized on real dat data — +> see [`docs/research/2026-05-31-u4c-flap-characterization.md`](../../research/2026-05-31-u4c-flap-characterization.md). +> The flap is a **direct `0xA9B40171→0xA9B40170` portal** side-test flip (the window cell is a +> direct neighbour, NOT multi-hop), and the evidence **selected H2 over H1**: our +> `CameraOnInteriorSide` derives the sidedness *sense* from the cell centroid, anti-correlated with +> the dat's authored per-portal `PortalSide` flag that retail's `InitCell` uses. The fix is to port +> the side test to use the dat `PortalSide` (in `portal.Flags`), not centroid-`InsideSide`. The +> stab_list PVS grounding (Layer 1 data, already plumbed in Task 2) stays as a correct improvement +> but is NOT the flap mechanism. The Task-1 synthetic test models the mechanism via a multi-hop +> `InsideSide` cull and must be re-authored to model the direct-portal `PortalSide`-vs-centroid +> divergence so it is a clean gate for the actual fix. This is the AC-algorithm port. **Read the oracle first, write pseudocode, then port** — do not invent the algorithm.