Initial whetstone_RSA architecture and C++ scaffold

schemas/gate_evidence_v0.json

@@ -0,0 +1,112 @@
+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "whetstone-rsa/gate-evidence-v0",
+  "title": "GateEvidence",
+  "type": "object",
+  "additionalProperties": false,
+  "required": [
+    "gate_id",
+    "model_tier"
+  ],
+  "properties": {
+    "gate_id": {
+      "type": "string",
+      "minLength": 1
+    },
+    "model_tier": {
+      "type": "string",
+      "minLength": 1
+    },
+    "raw_accuracy": {
+      "type": "number",
+      "minimum": 0,
+      "maximum": 1
+    },
+    "accept_rate": {
+      "type": "number",
+      "minimum": 0,
+      "maximum": 1
+    },
+    "accuracy_on_accepted": {
+      "type": "number",
+      "minimum": 0,
+      "maximum": 1
+    },
+    "abstain_rate": {
+      "type": "number",
+      "minimum": 0,
+      "maximum": 1
+    },
+    "retry_recovery_rate": {
+      "type": "number",
+      "minimum": 0,
+      "maximum": 1
+    },
+    "escalation_rate": {
+      "type": "number",
+      "minimum": 0,
+      "maximum": 1
+    },
+    "silent_error_rate": {
+      "type": "number",
+      "minimum": 0,
+      "maximum": 1
+    },
+    "calibration": {
+      "type": "object",
+      "additionalProperties": false,
+      "properties": {
+        "ece": {
+          "type": "number",
+          "minimum": 0,
+          "maximum": 1
+        }
+      }
+    },
+    "confusion_summary": {
+      "type": "array",
+      "items": {
+        "$ref": "#/$defs/confusionItem"
+      }
+    },
+    "latency_ms": {
+      "type": "number",
+      "minimum": 0
+    },
+    "compute_cost": {
+      "type": "number",
+      "minimum": 0
+    },
+    "notes": {
+      "type": "array",
+      "items": {
+        "type": "string"
+      }
+    }
+  },
+  "$defs": {
+    "confusionItem": {
+      "type": "object",
+      "additionalProperties": false,
+      "required": [
+        "actual",
+        "predicted",
+        "count"
+      ],
+      "properties": {
+        "actual": {
+          "type": "string",
+          "minLength": 1
+        },
+        "predicted": {
+          "type": "string",
+          "minLength": 1
+        },
+        "count": {
+          "type": "integer",
+          "minimum": 0
+        }
+      }
+    }
+  }
+}