Previous value: -"Optional. Compose an EXTRA prose answer with a named model, returned as `model_answer` beside the deterministic `answer`. It does not replace it: `answer` is synthesised from the structured fields and never calls a model, so every number in it traces to a fact_cid, and asking for a model must not turn a checkable answer into an unchecked one. `model_answer` carries provenance.class = model_output. Name it by base_model (`nvidia/Cosmos3-Edge`), by family (`cosmos3_edge`, `gemma`), or by any fragment naming exactly one of them (`cosmos`); a fragment matching several is refused and names them; an unroutable name is refused with the list of routable ones, and a routable model whose service is not answering is refused as busy or down rather than silently substituted. Cosmos deliberates and typically takes 13-22 s."New value: +"Optional. Compose an EXTRA prose answer with a named model, returned as `model_answer` beside the deterministic `answer`. It does not replace it: `answer` is synthesised from the structured fields and never calls a model, so every number in it traces to a fact_cid, and asking for a model must not turn a checkable answer into an unchecked one. `model_answer` carries provenance.class = model_output. Name it by base_model (`nvidia/Cosmos3-Edge`), by family (`cosmos3_edge`, `gemma`), or by any fragment naming exactly one of them (`cosmos`); a fragment matching several is refused and names them; an unroutable name is refused with the list of routable ones, and a routable model whose service is not answering is refused as busy or down rather than silently substituted. Cosmos is refused while its host has no GPU."

Previous value: -"Opt-in heavy response sections. Default response is slim (~5 KB): answer + algorithm key + fact_cids + caveats. Name specific sections to include them. Ignored when verbose=true (which includes everything)."New value: +"Opt-in REST envelope sections. `reasoning` drops `algorithms_for_question`; add `algorithms` to keep it. The MCP projection ignores these."

Previous value: -[
-  "band_observations",
-  "algorithm_outcomes",
-  "facts_full",
-  "temporal_composition",
-  "foundation_embeddings",
-  "scene",
-  "inventory"
-]New value: +[
+  "band_observations",
+  "algorithm_outcomes",
+  "facts_full",
+  "temporal_composition",
+  "scene",
+  "inventory",
+  "reasoning",
+  "algorithms"
+]

Previous value: -"When true, return the full envelope: per-algorithm formula strings, temporal_recipe blocks, per-fact band_metadata duplicates, and the long _explanation prose. Default (since 2026-05-05) is false so the response fits MCP's 25 KB cap; the signed receipt + fact CIDs + algorithm keys + algorithms_cid are always retained. Pass true to get the full body when debugging."New value: +"REST only: true adds per-algorithm formulas, band metadata and long prose. The MCP projection is small (about 7 KB) either way; the REST envelope is larger."

Previous value: -"The prose answer. The same text is in the content block, which also carries the full envelope."New value: +"The prose answer. Also in the content block, which carries the MCP projection; POST /v1/ask has the full envelope."

Previous value: -"Index into the fact_cids array in this result's text block. Dereference it to get the signed bytes."New value: +"Index into `receipt.fact_cids` (or the list `_projection.fact_cids_at` names). Dereference it for the signed bytes."

Previous value: -"The measured value, in the band's own units."New value: +"The measured value, in the band's own units. `null` where the band was looked for and not found: an absence is a reading."

Added value: +[
+  "number",
+  "string",
+  "boolean",
+  "null"
+]

Previous value: -nullNew value: +{
+  "properties": {
+    "_means": {
+      "type": "string"
+    },
+    "answer": {
+      "description": "The prose answer. The same text is in the content block, which also carries the full envelope.",
+      "type": "string"
+    },
+    "cell": {
+      "description": "The cell64 the question resolved to: emem's address for the place.",
+      "type": "string"
+    },
+    "question": {
+      "description": "The question as asked.",
+      "type": "string"
+    },
+    "schema": {
+      "const": "emem.ask_structured.v1",
+      "type": "string"
+    },
+    "spatial_trace": {
+      "description": "A spatial memory trace: what this responder has measured at this place, as primitives a model can reason over rather than a picture a person looks at.",
+      "properties": {
+        "absent": {
+          "description": "Bands this responder looked for and did not find. Absence is evidence: without it a consumer infers coverage nobody measured.",
+          "items": {
+            "properties": {
+              "band": {
+                "type": "string"
+              }
+            },
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "at": {
+          "description": "[lat, lng] of the cell, so a point has a position without a second call.",
+          "items": {
+            "type": "number"
+          },
+          "type": "array"
+        },
+        "cell": {
+          "type": "string"
+        },
+        "counts": {
+          "description": "Totals taken BEFORE any cap, so truncation can be seen rather than guessed.",
+          "properties": {
+            "absent": {
+              "type": "integer"
+            },
+            "absent_shown": {
+              "type": "integer"
+            },
+            "points_shown": {
+              "type": "integer"
+            },
+            "present": {
+              "type": "integer"
+            }
+          },
+          "type": "object"
+        },
+        "layers": {
+          "description": "Points grouped by what kind of evidence they are: surface (what the ground is), built (what stands on it), now (what is happening there), embedding (vectors for similarity). A layer absent from this list means the question never reached that kind of evidence; a band looked for and not found is in `absent` instead.",
+          "items": {
+            "properties": {
+              "layer": {
+                "enum": [
+                  "surface",
+                  "built",
+                  "now",
+                  "embedding",
+                  "other",
+                  "ground"
+                ],
+                "type": "string"
+              },
+              "points": {
+                "description": "One per signed reading.",
+                "items": {
+                  "properties": {
+                    "age_s": {
+                      "description": "How old the reading was when this answer was written.",
+                      "type": "integer"
+                    },
+                    "band": {
+                      "type": "string"
+                    },
+                    "class": {
+                      "description": "Provenance class: direct_sensor, deterministic_index, estimator, model_output, attested_execution, human_curated, unclassified. What KIND of claim this is.",
+                      "type": "string"
+                    },
+                    "f": {
+                      "description": "Index into the fact_cids array in this result's text block. Dereference it to get the signed bytes.",
+                      "type": "integer"
+                    },
+                    "unit": {
+                      "type": "string"
+                    },
+                    "value": {
+                      "description": "The measured value, in the band's own units."
+                    }
+                  },
+                  "required": [
+                    "band",
+                    "value"
+                  ],
+                  "type": "object"
+                },
+                "type": "array"
+              }
+            },
+            "required": [
+              "layer",
+              "points"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "schema": {
+          "const": "emem.spatial_trace.v1",
+          "type": "string"
+        },
+        "stage": {
+          "description": "Which stage of the answer grounded these readings.",
+          "type": "string"
+        },
+        "truncated": {
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "schema",
+        "layers",
+        "counts"
+      ],
+      "type": "object"
+    }
+  },
+  "required": [
+    "schema",
+    "spatial_trace"
+  ],
+  "type": "object"
+}

Previous value: -"Optional. Compose an EXTRA prose answer with a named model, returned as `model_answer` beside the deterministic `answer`. It does not replace it: `answer` is synthesised from the structured fields and never calls a model, so every number in it traces to a fact_cid, and asking for a model must not turn a checkable answer into an unchecked one. `model_answer` carries provenance.class = model_output. Name it by base_model (`nvidia/Cosmos3-Edge`) or by family (`cosmos3_edge`, `gemma`); an unroutable name is refused with the list of routable ones, and a routable model whose service is not answering is refused as busy or down rather than silently substituted. Cosmos deliberates and typically takes 13-22 s."New value: +"Optional. Compose an EXTRA prose answer with a named model, returned as `model_answer` beside the deterministic `answer`. It does not replace it: `answer` is synthesised from the structured fields and never calls a model, so every number in it traces to a fact_cid, and asking for a model must not turn a checkable answer into an unchecked one. `model_answer` carries provenance.class = model_output. Name it by base_model (`nvidia/Cosmos3-Edge`), by family (`cosmos3_edge`, `gemma`), or by any fragment naming exactly one of them (`cosmos`); a fragment matching several is refused and names them; an unroutable name is refused with the list of routable ones, and a routable model whose service is not answering is refused as busy or down rather than silently substituted. Cosmos deliberates and typically takes 13-22 s."

Added value: +{
+  "description": "Optional. Compose an EXTRA prose answer with a named model, returned as `model_answer` beside the deterministic `answer`. It does not replace it: `answer` is synthesised from the structured fields and never calls a model, so every number in it traces to a fact_cid, and asking for a model must not turn a checkable answer into an unchecked one. `model_answer` carries provenance.class = model_output. Name it by base_model (`nvidia/Cosmos3-Edge`) or by family (`cosmos3_edge`, `gemma`); an unroutable name is refused with the list of routable ones, and a routable model whose service is not answering is refused as busy or down rather than silently substituted. Cosmos deliberates and typically takes 13-22 s.",
+  "type": "string"
+}

Added value: +{
+  "description": "Alias for `q`.",
+  "type": "string"
+}

Added value: +{
+  "description": "Alias for `q`.",
+  "type": "string"
+}

Previous value: -"cell64 string (alternative to `place` — use when you have one from a prior emem_locate / emem_recall response). Provide this OR `place` OR `lat`+`lng`."New value: +"cell64 string (alternative to `place`, use when you have one from a prior emem_locate / emem_recall response). Provide this OR `place` OR `lat`+`lng`."

Added value: +{
+  "description": "Opt-in heavy response sections. Default response is slim (~5 KB): answer + algorithm key + fact_cids + caveats. Name specific sections to include them. Ignored when verbose=true (which includes everything).",
+  "items": {
+    "enum": [
+      "band_observations",
+      "algorithm_outcomes",
+      "facts_full",
+      "temporal_composition",
+      "foundation_embeddings",
+      "scene",
+      "inventory"
+    ],
+    "type": "string"
+  },
+  "type": "array"
+}

Added value: +23

Added value: +19

Added value: +"^(?:(?:[bcdfghjklmnpqrstvwxyz][aeiouAEIOU]){2}|z[0-9a-f]{4})(?:\\.(?:(?:[bcdfghjklmnpqrstvwxyz][aeiouAEIOU]){2}|z[0-9a-f]{4})){3}$"

Added value: +{
+  "default": false,
+  "description": "When true, return the full envelope: per-algorithm formula strings, temporal_recipe blocks, per-fact band_metadata duplicates, and the long _explanation prose. Default (since 2026-05-05) is false so the response fits MCP's 25 KB cap; the signed receipt + fact CIDs + algorithm keys + algorithms_cid are always retained. Pass true to get the full body when debugging.",
+  "type": "boolean"
+}

Removed value: -[
-  {
-    "required": [
-      "place"
-    ]
-  },
-  {
-    "required": [
-      "cell"
-    ]
-  },
-  {
-    "required": [
-      "lat",
-      "lng"
-    ]
-  }
-]

Removed value: -"Single-shot free-text answer about a real-world location. `q` is always required. Exactly one location form is also required: `place` (free text — extract the noun phrase from the user's turn), `cell` (cell64 from a prior call), or both `lat`+`lng`."

Previous value: -"cell64 string (alternative to `place` — use when you have one from a prior emem_locate / emem_recall response)."New value: +"cell64 string (alternative to `place` — use when you have one from a prior emem_locate / emem_recall response). Provide this OR `place` OR `lat`+`lng`."

Previous value: -"Free-text place name (e.g. \"Mount Fuji\", \"Ashok Nagar, Ranchi\"). Use this when the user's turn names a place — extract the noun phrase yourself; the responder geocodes via OSM Nominatim."New value: +"Free-text place name (e.g. \"Mount Fuji\", \"Ashok Nagar, Ranchi\"). REQUIRED unless `cell` or `lat`+`lng` is provided. Extract the noun phrase from the user's turn; the responder geocodes via OSM Nominatim."

Added value: +[
+  {
+    "required": [
+      "place"
+    ]
+  },
+  {
+    "required": [
+      "cell"
+    ]
+  },
+  {
+    "required": [
+      "lat",
+      "lng"
+    ]
+  }
+]

Added value: +"Single-shot free-text answer about a real-world location. `q` is always required. Exactly one location form is also required: `place` (free text — extract the noun phrase from the user's turn), `cell` (cell64 from a prior call), or both `lat`+`lng`."

Previous value: -"cell64 string (alternative to `place`)."New value: +"cell64 string (alternative to `place` — use when you have one from a prior emem_locate / emem_recall response)."

Previous value: -"WGS-84 longitude."New value: +"WGS-84 longitude (paired with `lat`)."

Previous value: -"Free-text place name. One of `place`, `cell`, or (`lat`+`lng`) is required."New value: +"Free-text place name (e.g. \"Mount Fuji\", \"Ashok Nagar, Ranchi\"). Use this when the user's turn names a place — extract the noun phrase yourself; the responder geocodes via OSM Nominatim."

Previous value: -"User's natural-language question about the place."New value: +"User's natural-language question about the place (e.g. \"is this neighbourhood flood-prone\")."