archive wateringHole hygiene + audit response — Wave 49 Mountain

28 superseded handoffs (S243–S266) moved to archive/ subdir.
9 active handoffs remain at top level (S267–S275).
Wave 49 Mountain audit response: both toadStool items resolved
(archive hygiene + startup latency already fixed in S275).

Co-authored-by: Cursor <cursoragent@cursor.com>

Author: BiomeOS Developer

infra/wateringHole/handoffs/PRIMALSPRING_WAVE49_MOUNTAIN_RESPONSE_S275_MAY25_2026.md

@@ -0,0 +1,68 @@
+# toadStool — Wave 49 "Primals on the Mountain" Response
+
+**Date**: May 25, 2026
+**Session**: S275
+**From**: toadStool team
+**To**: primalSpring (downstream audit)
+**Audit ref**: Wave 49 — Primals on the Mountain (May 25, 2026)
+
+---
+
+## toadStool Items — Both Resolved
+
+### 1. Archive hygiene — RESOLVED (this session)
+
+**Audit**: `infra/wateringHole/` has 37 flat handoffs, no `archive/` subdir.
+
+**Fix**: Created `archive/` subdir. 28 superseded handoffs (S243–S266) moved
+to `archive/`. 9 active handoffs remain at top level (S267–S275).
+
+Split boundary: S267+ = active (deep debt evolution, primalSpring wave
+responses). S243–S266 = Phase C absorption, diesel engine, hotspring
+exchanges — all resolved work.
+
+### 2. Slow startup (>8s cold) — ALREADY RESOLVED (S275, earlier this session)
+
+**Audit**: Cold launch >8s, health probes can time out.
+
+**Fix** (shipped in S275 Wave 49 ecosystem tightening commit):
+
+1. **Deferred wgpu GPU enumeration** — `query_local_capabilities()` returns
+   fast baseline (cpu, memory, orchestration) immediately. wgpu
+   `enumerate_adapters()` (1–5s Vulkan driver init) runs in background
+   `tokio::spawn`. Full GPU capabilities populate `OnceLock` asynchronously.
+
+2. **Pre-bound JSON-RPC socket** — `prebind_unix_listener()` binds the
+   socket before `create_executor()` runs. Health probes can connect during
+   initialization. `serve_unix_prebound()` accepts pre-bound listener once
+   handler is ready.
+
+3. Default `LocalDirect` deployment skips orchestrator overhead entirely.
+
+**Result**: Socket is listening within ~1s of startup. Health probes no
+longer time out during cold launch.
+
+---
+
+## Ecosystem Notes
+
+### S4 Auth Shadow
+No action needed from toadStool — membrane consumes through bearDog.
+Acknowledged.
+
+### Cross-Gate `discovery.peers`
+toadStool does not gate this — Songbird owns `mesh.init` + `discovery.peers`.
+We'll consume the capability when it lands.
+
+---
+
+## Verification
+
+- [x] `infra/wateringHole/handoffs/archive/` exists with 28 superseded files
+- [x] 9 active handoffs at top level (S267–S275)
+- [x] Startup latency fix shipped (S275)
+- [x] 0 clippy warnings, 9,149+ lib tests passing
+
+---
+
+Both toadStool items from Wave 49 Mountain audit: **RESOLVED**.