DaedalMap Administrative Boundaries (loc_id to polygon)

Compare Geographic Identities

compare_geographies

Read-onlyIdempotent

Compare two known loc_ids using selected reference-graph identity and direct relationship evidence. Verified Admin ancestry can prove containment; a typed graph edge can prove only the relation it declares. An explicit negative edge returns no_overlap; a missing edge returns unknown. This tool never reads polygons or computes shape intersections. Use an external identifier bridge before this call when the input is not a loc_id. No payment required.

Input Schema

TableJSON Schema

Name	Required	Description
`as_of`	No	ISO date or year applied to both identities.
`items`	No	Bounded geography pairs to compare in one call.
`batch_id`	No	Optional caller-supplied batch id for tracing.
`left_as_of`	No	Optional ISO date or year for the left identity; overrides as_of.
`request_id`	No	Optional caller-supplied request id for tracing.
`left_loc_id`	No	First DaedalMap loc_id.
`right_as_of`	No	Optional ISO date or year for the right identity; overrides as_of.
`right_loc_id`	No	Second DaedalMap loc_id.
`include_successors`	No	Include direct successors and present-day descendants for maintained historical identities. Default true.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`ok`	No
`error`	No
`reason`	No
`results`	No
`batch_id`	No
`guidance`	No
`warnings`	No
`next_step`	No
`item_count`	No
`request_id`	No
`failed_count`	No
`clarification`	No
`meter_receipt`	No
`compared_count`	No
`graph_evidence`	No
`geometry_loaded`	No
`spatial_relation`	No
`temporal_relation`	No
`relationship_basis`	No
`settlement_receipt`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed9 schema fields changedOct 16, 2026

removedInput schema / anyOf

Removed value: -[
-  {
-    "required": [
-      "left_loc_id",
-      "right_loc_id"
-    ]
-  },
-  {
-    "required": [
-      "items"
-    ]
-  }
-]

addedInput schema / oneOf

Added value: +[
+  {
+    "required": [
+      "left_loc_id",
+      "right_loc_id"
+    ]
+  },
+  {
+    "required": [
+      "items"
+    ]
+  }
+]

addedInput schema / properties / items / items / properties / left_loc_id / minLength
```
Added value: +1
```
addedInput schema / properties / items / items / properties / right_loc_id / minLength
```
Added value: +1
```
addedInput schema / properties / left_loc_id / minLength
```
Added value: +1
```
addedInput schema / properties / right_loc_id / minLength
```
Added value: +1
```
addedOutput schema / properties / geometry_loaded
```
Added value: +{
+  "type": "boolean"
+}
```

addedOutput schema / properties / graph_evidence

Added value: +{
+  "items": {
+    "type": "object"
+  },
+  "type": "array"
+}

addedOutput schema / properties / relationship_basis
```
Added value: +{
+  "type": "string"
+}
```

Changed1 schema field changedSep 24, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "additionalProperties": true,
+  "anyOf": [
+    {
+      "required": [
+        "ok",
+        "spatial_relation"
+      ]
+    },
+    {
+      "required": [
+        "item_count",
+        "results"
+      ]
+    },
+    {
+      "required": [
+        "error"
+      ]
+    }
+  ],
+  "properties": {
+    "batch_id": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "clarification": {
+      "type": "object"
+    },
+    "compared_count": {
+      "minimum": 0,
+      "type": "integer"
+    },
+    "error": {
+      "additionalProperties": true,
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "details": {
+          "type": "object"
+        },
+        "message": {
+          "type": "string"
+        },
+        "retry_hint": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object"
+    },
+    "failed_count": {
+      "minimum": 0,
+      "type": "integer"
+    },
+    "guidance": {
+      "type": "object"
+    },
+    "item_count": {
+      "minimum": 0,
+      "type": "integer"
+    },
+    "meter_receipt": {
+      "type": "object"
+    },
+    "next_step": {
+      "additionalProperties": true,
+      "anyOf": [
+        {
+          "required": [
+            "action"
+          ]
+        },
+        {
+          "required": [
+            "tool"
+          ]
+        }
+      ],
+      "properties": {
+        "action": {
+          "type": "string"
+        },
+        "arguments": {
+          "type": "object"
+        },
+        "tool": {
+          "type": "string"
+        },
+        "url": {
+          "type": "string"
+        }
+      },
+      "type": "object"
+    },
+    "ok": {
+      "type": "boolean"
+    },
+    "reason": {
+      "type": "string"
+    },
+    "request_id": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "results": {
+      "items": {
+        "additionalProperties": true,
+        "properties": {
+          "error": {
+            "additionalProperties": true,
+            "properties": {
+              "code": {
+                "type": "string"
+              },
+              "details": {
+                "type": "object"
+              },
+              "message": {
+                "type": "string"
+              },
+              "retry_hint": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "code",
+              "message"
+            ],
+            "type": "object"
+          },
+          "id": {
+            "type": [
+              "string",
+              "integer",
+              "null"
+            ]
+          },
+          "ok": {
+            "type": "boolean"
+          },
+          "row_index": {
+            "type": [
+              "string",
+              "integer",
+              "null"
+            ]
+          }
+        },
+        "type": "object"
+      },
+      "type": "array"
+    },
+    "settlement_receipt": {
+      "type": "object"
+    },
+    "spatial_relation": {
+      "type": [
+        "string",
+        "object",
+        "null"
+      ]
+    },
+    "temporal_relation": {
+      "type": [
+        "string",
+        "object",
+        "null"
+      ]
+    },
+    "warnings": {
+      "items": {
+        "type": "object"
+      },
+      "type": "array"
+    }
+  },
+  "type": "object"
+}

AddedAug 10, 2026

TDQS

A3.9/5.0

Behavior4/5

Does the description disclose side effects, auth requirements, rate limits, or destructive behavior?

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is covered. The description adds genuine behavioral detail beyond that: an explicit negative edge yields no_overlap while a missing edge yields unknown, Admin ancestry can prove containment but a typed edge proves only its declared relation, and it never reads polygons. This meaningfully improves result interpretation.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness4/5

Is the description appropriately sized, front-loaded, and free of redundancy?

Front-loaded with the core action and the proof model, then covers edge outcomes, scope limits, and prerequisites in a compact sequence. It is dense but every sentence carries distinct information; minor tightening is possible.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

The tool has an output schema and complete annotation coverage, so return values and safety need not be restated. The description supplies the interpretive rules (no_overlap vs unknown) and the identifier-bridge prerequisite, leaving little an agent needs to infer before calling it.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so all nine parameters are already documented in the schema (including as_of overrides and include_successors default). The description adds no additional per-parameter syntax or format detail beyond that, so the baseline 3 is appropriate.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose4/5

Does the description clearly state what the tool does and how it differs from similar tools?

States a specific verb (Compare) and resource (known loc_ids / geographic identities) with a precise scope: reference-graph identity plus direct relationship evidence. It also carves out what it is not – a polygon/geometry-intersection tool – which implicitly separates it from get_shape and get_geography. It stops short of naming a sibling by name, so it is clear but not fully differentiated.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

Gives a concrete prerequisite: 'Use an external identifier bridge before this call when the input is not a loc_id.' This tells the agent when the tool is applicable and what to do first. It does not, however, explicitly name an alternative tool or state a when-not condition for already-valid loc_ids.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.

All DaedalMap Administrative Boundaries (loc_id to polygon) tools Inspect

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