snapshot: NVFP4+MTP fast-seat quant recipe + failure state (gibberish, unisolated)

Captures the full pipeline recipe (graft->quant->splice->config->serve) with every
gotcha found this session, the 3 gibberish suspects, and the diagnostic ladder
(validate native-config no-MTP coherence FIRST) for a fresh session to finish the
chase. Also stages the NVFP4 scripts + 512-row calib. Recent decisions: NEO-CODE
seat swap (R36), webhook ALLOWED_HOST_LIST fix. Lessons: validate-tracer-bullet-first,
mtp-graft-dropped-at-load, gitea-204-red-herring.

services/heretic2-nvfp4-quant/calib/soong_tool_schema.json

@@ -0,0 +1,132 @@
+[
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.set_name",
+      "parameters": {
+        "type": "object",
+        "required": ["name"],
+        "properties": {
+          "name": { "type": "string", "maxLength": 128, "minLength": 1 }
+        }
+      },
+      "description": "Set the agent's name (its display name; export slugifies it)."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.set_role",
+      "parameters": {
+        "type": "object",
+        "required": ["role"],
+        "properties": {
+          "role": {
+            "enum": ["assistant", "thoughtful-assistant", "character", "thoughtful-character"],
+            "type": "string"
+          }
+        }
+      },
+      "description": "Set the agent's model-role — one of: assistant (general), thoughtful-assistant (reasoning general), character (RP/writing-tuned), thoughtful-character (reasoning RP). Export ships it as the native agents.define `role`."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.set_ocean",
+      "parameters": {
+        "type": "object",
+        "properties": {
+          "A": { "type": "number", "maximum": 1, "minimum": -1 },
+          "C": { "type": "number", "maximum": 1, "minimum": -1 },
+          "E": { "type": "number", "maximum": 1, "minimum": -1 },
+          "N": { "type": "number", "maximum": 1, "minimum": -1 },
+          "O": { "type": "number", "maximum": 1, "minimum": -1 }
+        },
+        "minProperties": 1
+      },
+      "description": "Merge OCEAN dials (each in [-1,1]); re-derives the disposition."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.edit_prompt",
+      "parameters": {
+        "type": "object",
+        "required": ["system_prompt"],
+        "properties": {
+          "system_prompt": { "type": "string", "maxLength": 32768, "minLength": 1 }
+        }
+      },
+      "description": "Replace the authored role/instructions block (the exported system prompt)."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.attach_tool",
+      "parameters": {
+        "type": "object",
+        "required": ["id", "name"],
+        "properties": {
+          "id": { "type": "string", "maxLength": 256, "minLength": 1 },
+          "name": { "type": "string", "maxLength": 256, "minLength": 1 },
+          "description": { "type": "string", "maxLength": 2048 }
+        }
+      },
+      "description": "Attach (upsert by id) a tool the designed agent will bind via Bifrost."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.author_first_message",
+      "parameters": {
+        "type": "object",
+        "required": ["first_message"],
+        "properties": {
+          "first_message": { "type": "string", "maxLength": 32768, "minLength": 1 }
+        }
+      },
+      "description": "Set the agent's in-character opening turn (tone + format by example)."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.edit_psych_profile",
+      "parameters": {
+        "type": "object",
+        "required": ["psych_profile"],
+        "properties": {
+          "psych_profile": { "type": "string", "maxLength": 8192, "minLength": 1 }
+        }
+      },
+      "description": "Author the character's Psychological Profile & Experience — a ~150-300 word prose lens (the self-report producer reads it every turn) covering four dimensions: disposition/appraisal bent, attention/salience focus, values/yardstick, and formative history. Integrate them as one paragraph and CLOSE ON ATTENTION — what the character characteristically notices ('...notices who is unwell, what is left unsaid'). Guardrails: (1) NEVER name a per-event output emotion ('is anxious', 'feels hurt') — naming PRIMES it, so it fires regardless of the event; describe the bent and let emotion follow from the appraisal. (2) Magnitude lives in the OCEAN dials, not the prose (don't narrate 'comes apart'/'takes it hard'). (3) Appraisal-STYLE yes ('reads others charitably until she can't'), output-emotion no. (4) Salience is character-relative — never rewrite what happened."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.generate_portrait",
+      "parameters": {
+        "type": "object",
+        "required": ["description"],
+        "properties": {
+          "description": { "type": "string", "maxLength": 500, "minLength": 1 },
+          "style_mode": { "enum": ["anime", "cartoon", "photoreal"], "type": "string" }
+        }
+      },
+      "description": "Generate the agent's persona portrait NOW from a visual `description` you author — the persona's LOOK (e.g. 'a stern woman in her 40s, short dark hair, sharp jaw'). A persona is personality, not appearance, so YOU compose the appearance in conversation and pass it here; describe only the subject, never the art style. `style_mode` (anime | cartoon | photoreal) selects the curated render style — the style preset owns the look. Generation runs in the background; the portrait pane shows it when ready. Offer/generate a portrait once the look is settled."
+    }
+  },
+  {
+    "type": "function",
+    "function": {
+      "name": "bifrost.soong-lab.export",
+      "parameters": { "type": "object", "properties": {} },
+      "description": "Export the native payload + sidecar bundle (stub — lands in E5)."
+    }
+  }
+]