From fbef131bcb064e79e9c0c0e82857f984c91558c5 Mon Sep 17 00:00:00 2001
From: sindoring <sindoringg@gmail.com>
Date: Mon, 13 Jul 2026 15:35:45 +0400
Subject: [PATCH] docs(M01): claim streaming focus contract

Work-Package: M01-RND-STREAMING-FOCUS-001

Agent: sindo-main-codex
---
 .../claims/M01-RND-STREAMING-FOCUS-001.md     | 84 +++++++++++++++++++
 1 file changed, 84 insertions(+)
 create mode 100644 coordination/claims/M01-RND-STREAMING-FOCUS-001.md

diff --git a/coordination/claims/M01-RND-STREAMING-FOCUS-001.md b/coordination/claims/M01-RND-STREAMING-FOCUS-001.md
new file mode 100644
index 0000000..4fb41d3
--- /dev/null
+++ b/coordination/claims/M01-RND-STREAMING-FOCUS-001.md
@@ -0,0 +1,84 @@
+# M01-RND-STREAMING-FOCUS-001 — Explicit streaming focus contract
+
+<!-- OPENWC_CLAIM:M01-RND-STREAMING-FOCUS-001:sindo-main-codex:2026-07-15 -->
+
+## Ownership
+
+- Target: M01
+- Program: RND/FND
+- Owner/Agent ID: sindo-main-codex
+- Branch: `work/sindo-main-codex/m01-streaming-focus`
+- Lease expires UTC: 2026-07-15
+- Integrator: M01 milestone integrator
+
+## Outcome
+
+Introduce a scene-free `StreamingFocus` value and make runtime/test streaming
+consume it through an explicit source or public setter instead of discovering
+the active `Camera3D` from a viewport.
+
+## Non-goals
+
+- Extracting `WorldRenderFacade` or `StreamingTargetPlanner` from the monolithic loader.
+- Adding direction, velocity, frustum or multi-focus planning.
+- Decomposing the player controller before M02.
+- Changing terrain, M2, WMO, liquid, cache or LOD formulas.
+
+## Paths
+
+- Exclusive: `src/domain/streaming/`, `src/tools/verify_streaming_focus.gd`
+- Shared/hotspots: `src/scenes/streaming/streaming_world_loader.gd`,
+  `src/scenes/streaming/eastern_kingdoms_streaming.tscn`,
+  `src/scenes/streaming/kalimdor_streaming.tscn`, renderer diagnostic tools,
+  `docs/modules/world-renderer.md`, this claim
+- Generated/ignored: local extracted assets, renderer caches and Godot import metadata
+
+## Contracts and data
+
+- Public API: immutable `StreamingFocus`; loader `set_streaming_focus` and
+  `refresh_streaming_focus`
+- Source adapter: explicit `streaming_focus_source_path` may reference any `Node3D`
+- Migration: runtime scenes use player focus; capture/probe tools explicitly use
+  their dedicated camera as the source
+- Compatibility: streaming radii/LOD/cache behavior and coordinate contract v2 unchanged
+
+## Dependencies
+
+- Requires: coordinate contract version 2 and golden fixtures at `52e1b2b`
+- Blocks: M01 renderer/test focus exit criterion and later renderer facade extraction
+- External state: no new dependency or proprietary input
+
+## Verification
+
+- Commands: streaming focus contract/integration verifier, renderer baseline
+  manifest/calibration, headless scene smoke, coordination/documentation gates
+- Fixtures: Node3D player-style source and explicit capture-style setter
+- Fidelity evidence: existing seven renderer checkpoints and build-12340 coordinate
+  calibration must remain unchanged
+- Performance budget: one scalar focus snapshot per configured streaming interval;
+  no new per-tile or per-chunk work
+
+## Documentation deliverables
+
+- Inline public API docs: focus value and loader public methods
+- Module specification: inputs/outputs, ownership, lifecycle, failure/recovery and source map
+- Data-flow diagram: player/editor/capture source to focus contract to loader
+- State/sequence diagram: focus sampling and refresh threshold sequence
+
+## Simplicity and naming
+
+- Important names introduced: `StreamingFocus`, `streaming_focus_source_path`,
+  `set_streaming_focus`, `refresh_streaming_focus`
+- Simplest considered solution: one immutable value plus one explicit scene adapter path
+- Rejected complexity/abstractions: provider interface hierarchy, service locator,
+  multi-focus registry and predictive motion fields
+- Unavoidable complexity and justification: editor viewport remains a separate
+  adapter because its camera is owned by `EditorInterface`
+- Measured optimization evidence: not applicable
+
+## Status
+
+- State: active
+- Done: scope and contract boundary selected
+- Next: implement contract, runtime/test migration, tests and documentation
+- Blocked by: