EximAgent

FTA utilization

exim__duty__fta

Read-onlyIdempotent

Shows how much trade into a market used a free-trade-agreement preference versus paid full duty, by agreement. Use it to find unused FTA savings.

Input Schema

Name	Required	Description
`to`	No	Latest month, YYYY-MM.
`from`	No	Earliest month, YYYY-MM.
`limit`	No	max rows (1-1000, default 100)
`hsCode`	No	HS code at 2, 4 or 6 digits; shorter codes match the whole family (0901 = all coffee). Do not pad with zeros (090100 matches nothing).
`source`	No	dataset source filter
`originCountry`	No	Origin (exporting) country, ISO2 code (e.g. VN).
`destinationCountry`	No	Destination (importing) country, ISO2 code (e.g. US, DE).

Output Schema

Name	Required	Description	Default
`data`	Yes
`stats`	No
`_debug`	No
`summary`	Yes
`warnings`	No
`nextActions`	Yes
`correlationId`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed9 schema fields changedOct 14, 2026

changedInput schema / not / anyOf

Previous value: -[
-  {
-    "not": {
-      "anyOf": [
-        {
-          "properties": {
-            "hs": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "hs"
-          ]
-        },
-        {
-          "properties": {
-            "hs": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "hs"
-          ]
-        },
-        {
-          "properties": {
-            "dest": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "dest"
-          ]
-        }
-      ]
-    }
-  }
-]New value: +[
+  {
+    "not": {
+      "anyOf": [
+        {
+          "properties": {
+            "hsCode": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "hsCode"
+          ]
+        },
+        {
+          "properties": {
+            "hsCode": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "hsCode"
+          ]
+        },
+        {
+          "properties": {
+            "destinationCountry": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "destinationCountry"
+          ]
+        }
+      ]
+    }
+  }
+]

removedInput schema / properties / dest

Removed value: -{
-  "description": "destination/market country (ISO 2) (the importing country)",
-  "maxLength": 8000,
-  "type": "string"
-}

addedInput schema / properties / destinationCountry

Added value: +{
+  "description": "Destination (importing) country, ISO2 code (e.g. US, DE).",
+  "maxLength": 8000,
+  "type": "string"
+}

changedInput schema / properties / from / description

Previous value: -"earliest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)"New value: +"Earliest month, YYYY-MM."

removedInput schema / properties / hs

Removed value: -{
-  "description": "HS code at ANY granularity — 2/4/6-digit; a shorter code is a broader family (e.g. 0901 = all coffee). Do NOT pad to 6 digits: 090100 matches nothing.",
-  "maxLength": 8000,
-  "type": "string"
-}

addedInput schema / properties / hsCode

Added value: +{
+  "description": "HS code at 2, 4 or 6 digits; shorter codes match the whole family (0901 = all coffee). Do not pad with zeros (090100 matches nothing).",
+  "maxLength": 8000,
+  "type": "string"
+}

removedInput schema / properties / origin

Removed value: -{
-  "description": "origin country (ISO 2) (the sourcing country) filter",
-  "maxLength": 8000,
-  "type": "string"
-}

addedInput schema / properties / originCountry

Added value: +{
+  "description": "Origin (exporting) country, ISO2 code (e.g. VN).",
+  "maxLength": 8000,
+  "type": "string"
+}

changedInput schema / properties / to / description

Previous value: -"latest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)"New value: +"Latest month, YYYY-MM."

Changed9 schema fields changedOct 14, 2026

changedInput schema / not / anyOf

Previous value: -[
-  {
-    "not": {
-      "anyOf": [
-        {
-          "properties": {
-            "hsCode": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "hsCode"
-          ]
-        },
-        {
-          "properties": {
-            "hsCode": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "hsCode"
-          ]
-        },
-        {
-          "properties": {
-            "destinationCountry": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "destinationCountry"
-          ]
-        }
-      ]
-    }
-  }
-]New value: +[
+  {
+    "not": {
+      "anyOf": [
+        {
+          "properties": {
+            "hs": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "hs"
+          ]
+        },
+        {
+          "properties": {
+            "hs": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "hs"
+          ]
+        },
+        {
+          "properties": {
+            "dest": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "dest"
+          ]
+        }
+      ]
+    }
+  }
+]

addedInput schema / properties / dest

Added value: +{
+  "description": "destination/market country (ISO 2) (the importing country)",
+  "maxLength": 8000,
+  "type": "string"
+}

removedInput schema / properties / destinationCountry

Removed value: -{
-  "description": "Destination (importing) country, ISO2 code (e.g. US, DE).",
-  "maxLength": 8000,
-  "type": "string"
-}

changedInput schema / properties / from / description

Previous value: -"Earliest month, YYYY-MM."New value: +"earliest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)"

addedInput schema / properties / hs

Added value: +{
+  "description": "HS code at ANY granularity — 2/4/6-digit; a shorter code is a broader family (e.g. 0901 = all coffee). Do NOT pad to 6 digits: 090100 matches nothing.",
+  "maxLength": 8000,
+  "type": "string"
+}

removedInput schema / properties / hsCode

Removed value: -{
-  "description": "HS code at 2, 4 or 6 digits; shorter codes match the whole family (0901 = all coffee). Do not pad with zeros (090100 matches nothing).",
-  "maxLength": 8000,
-  "type": "string"
-}

addedInput schema / properties / origin

Added value: +{
+  "description": "origin country (ISO 2) (the sourcing country) filter",
+  "maxLength": 8000,
+  "type": "string"
+}

removedInput schema / properties / originCountry

Removed value: -{
-  "description": "Origin (exporting) country, ISO2 code (e.g. VN).",
-  "maxLength": 8000,
-  "type": "string"
-}

changedInput schema / properties / to / description

Previous value: -"Latest month, YYYY-MM."New value: +"latest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)"

Changed9 schema fields changedOct 14, 2026

changedInput schema / not / anyOf

Previous value: -[
-  {
-    "not": {
-      "anyOf": [
-        {
-          "properties": {
-            "hs": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "hs"
-          ]
-        },
-        {
-          "properties": {
-            "hs": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "hs"
-          ]
-        },
-        {
-          "properties": {
-            "dest": {
-              "minLength": 1,
-              "type": "string"
-            }
-          },
-          "required": [
-            "dest"
-          ]
-        }
-      ]
-    }
-  }
-]New value: +[
+  {
+    "not": {
+      "anyOf": [
+        {
+          "properties": {
+            "hsCode": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "hsCode"
+          ]
+        },
+        {
+          "properties": {
+            "hsCode": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "hsCode"
+          ]
+        },
+        {
+          "properties": {
+            "destinationCountry": {
+              "minLength": 1,
+              "type": "string"
+            }
+          },
+          "required": [
+            "destinationCountry"
+          ]
+        }
+      ]
+    }
+  }
+]

removedInput schema / properties / dest

Removed value: -{
-  "description": "destination/market country (ISO 2) (the importing country)",
-  "maxLength": 8000,
-  "type": "string"
-}

addedInput schema / properties / destinationCountry

Added value: +{
+  "description": "Destination (importing) country, ISO2 code (e.g. US, DE).",
+  "maxLength": 8000,
+  "type": "string"
+}

changedInput schema / properties / from / description

Previous value: -"earliest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)"New value: +"Earliest month, YYYY-MM."

removedInput schema / properties / hs

Removed value: -{
-  "description": "HS code at ANY granularity — 2/4/6-digit; a shorter code is a broader family (e.g. 0901 = all coffee). Do NOT pad to 6 digits: 090100 matches nothing.",
-  "maxLength": 8000,
-  "type": "string"
-}

addedInput schema / properties / hsCode

Added value: +{
+  "description": "HS code at 2, 4 or 6 digits; shorter codes match the whole family (0901 = all coffee). Do not pad with zeros (090100 matches nothing).",
+  "maxLength": 8000,
+  "type": "string"
+}

removedInput schema / properties / origin

Removed value: -{
-  "description": "origin country (ISO 2) (the sourcing country) filter",
-  "maxLength": 8000,
-  "type": "string"
-}

addedInput schema / properties / originCountry

Added value: +{
+  "description": "Origin (exporting) country, ISO2 code (e.g. VN).",
+  "maxLength": 8000,
+  "type": "string"
+}

changedInput schema / properties / to / description

Previous value: -"latest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)"New value: +"Latest month, YYYY-MM."

Changed17 schema fields changedOct 13, 2026

addedInput schema / not

Added value: +{
+  "anyOf": [
+    {
+      "not": {
+        "anyOf": [
+          {
+            "properties": {
+              "hs": {
+                "minLength": 1,
+                "type": "string"
+              }
+            },
+            "required": [
+              "hs"
+            ]
+          },
+          {
+            "properties": {
+              "hs": {
+                "minLength": 1,
+                "type": "string"
+              }
+            },
+            "required": [
+              "hs"
+            ]
+          },
+          {
+            "properties": {
+              "dest": {
+                "minLength": 1,
+                "type": "string"
+              }
+            },
+            "required": [
+              "dest"
+            ]
+          }
+        ]
+      }
+    }
+  ]
+}

removedInput schema / properties / --dest

Removed value: -{
-  "description": "destination/market country (ISO 2) (the importing country)",
-  "type": "string"
-}

removedInput schema / properties / --from

Removed value: -{
-  "description": "earliest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)",
-  "pattern": "^[0-9]{4}(-(0[1-9]|1[0-2])(-(0[1-9]|[12][0-9]|3[01]))?)?$",
-  "type": "string"
-}

removedInput schema / properties / --hs

Removed value: -{
-  "description": "HS code at ANY granularity — 2/4/6-digit; a shorter code is a broader family (e.g. 0901 = all coffee). Do NOT pad to 6 digits: 090100 matches nothing.",
-  "type": "string"
-}

removedInput schema / properties / --hs6

Removed value: -{
-  "description": "HS code at ANY granularity — 2/4/6-digit; a shorter code is a broader family (e.g. 0901 = all coffee). Do NOT pad to 6 digits: 090100 matches nothing.",
-  "type": "string"
-}

removedInput schema / properties / --limit

Removed value: -{
-  "description": "max rows (1-1000, default 100)",
-  "type": "integer"
-}

removedInput schema / properties / --origin

Removed value: -{
-  "description": "origin country (ISO 2) (the sourcing country) filter",
-  "type": "string"
-}

removedInput schema / properties / --source

Removed value: -{
-  "description": "dataset source filter",
-  "type": "string"
-}

removedInput schema / properties / --to

Removed value: -{
-  "description": "latest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)",
-  "pattern": "^[0-9]{4}(-(0[1-9]|1[0-2])(-(0[1-9]|[12][0-9]|3[01]))?)?$",
-  "type": "string"
-}

addedInput schema / properties / dest

Added value: +{
+  "description": "destination/market country (ISO 2) (the importing country)",
+  "maxLength": 8000,
+  "type": "string"
+}

addedInput schema / properties / from

Added value: +{
+  "description": "earliest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)",
+  "maxLength": 8000,
+  "pattern": "^[0-9]{4}(-(0[1-9]|1[0-2])(-(0[1-9]|[12][0-9]|3[01]))?)?$",
+  "type": "string"
+}

addedInput schema / properties / hs

Added value: +{
+  "description": "HS code at ANY granularity — 2/4/6-digit; a shorter code is a broader family (e.g. 0901 = all coffee). Do NOT pad to 6 digits: 090100 matches nothing.",
+  "maxLength": 8000,
+  "type": "string"
+}

addedInput schema / properties / limit

Added value: +{
+  "description": "max rows (1-1000, default 100)",
+  "maximum": 1000,
+  "minimum": 1,
+  "type": "integer"
+}

addedInput schema / properties / origin

Added value: +{
+  "description": "origin country (ISO 2) (the sourcing country) filter",
+  "maxLength": 8000,
+  "type": "string"
+}

addedInput schema / properties / source

Added value: +{
+  "description": "dataset source filter",
+  "maxLength": 8000,
+  "type": "string"
+}

addedInput schema / properties / to

Added value: +{
+  "description": "latest month (YYYY-MM; YYYY or YYYY-MM-DD also accepted)",
+  "maxLength": 8000,
+  "pattern": "^[0-9]{4}(-(0[1-9]|1[0-2])(-(0[1-9]|[12][0-9]|3[01]))?)?$",
+  "type": "string"
+}

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$defs": {
+    "value0": {
+      "additionalProperties": false,
+      "properties": {
+        "agreementName": {
+          "type": "string"
+        },
+        "avgTariffRatePct": {
+          "type": "number"
+        },
+        "fullDutyPaid": {
+          "type": "integer"
+        },
+        "preferenceUsed": {
+          "type": "integer"
+        },
+        "shipmentCount": {
+          "type": "integer"
+        },
+        "unusedValueUsd": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "utilizationPct": {
+          "type": "number"
+        }
+      },
+      "required": [
+        "agreementName",
+        "avgTariffRatePct",
+        "fullDutyPaid",
+        "preferenceUsed",
+        "shipmentCount",
+        "unusedValueUsd",
+        "utilizationPct"
+      ],
+      "type": "object"
+    },
+    "value1": {
+      "anyOf": [
+        {
+          "items": {
+            "type": [
+              "null",
+              "boolean",
+              "number",
+              "string",
+              "array",
+              "object"
+            ]
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value2": {
+      "anyOf": [
+        {
+          "items": {
+            "$ref": "#/$defs/value3"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value3": {
+      "additionalProperties": false,
+      "properties": {
+        "command": {
+          "type": "string"
+        },
+        "cost": {
+          "type": "string"
+        },
+        "label": {
+          "type": "string"
+        },
+        "rationale": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "command",
+        "cost",
+        "label",
+        "rationale"
+      ],
+      "type": "object"
+    },
+    "value4": {
+      "anyOf": [
+        {
+          "additionalProperties": {
+            "type": "number"
+          },
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value5": {
+      "anyOf": [
+        {
+          "items": {
+            "$ref": "#/$defs/value6"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value6": {
+      "additionalProperties": false,
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object"
+    },
+    "value7": {
+      "anyOf": [
+        {
+          "additionalProperties": {
+            "type": [
+              "null",
+              "boolean",
+              "number",
+              "string",
+              "array",
+              "object"
+            ]
+          },
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    }
+  },
+  "additionalProperties": false,
+  "properties": {
+    "_debug": {
+      "$ref": "#/$defs/value7"
+    },
+    "correlationId": {
+      "type": "string"
+    },
+    "data": {
+      "additionalProperties": false,
+      "properties": {
+        "context": {
+          "type": [
+            "null",
+            "boolean",
+            "number",
+            "string",
+            "array",
+            "object"
+          ]
+        },
+        "cursor": {
+          "type": "string"
+        },
+        "has_more": {
+          "type": "boolean"
+        },
+        "items": {
+          "anyOf": [
+            {
+              "items": {
+                "$ref": "#/$defs/value0"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "required": [
+        "context",
+        "has_more",
+        "items"
+      ],
+      "type": "object"
+    },
+    "nextActions": {
+      "$ref": "#/$defs/value2"
+    },
+    "stats": {
+      "$ref": "#/$defs/value4"
+    },
+    "summary": {
+      "type": "string"
+    },
+    "warnings": {
+      "$ref": "#/$defs/value5"
+    }
+  },
+  "required": [
+    "data",
+    "nextActions",
+    "summary"
+  ],
+  "type": "object"
+}

First observedOct 9, 2026

TDQS

A3.6/5.0

Behavior3/5

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

Annotations already declare this a safe, idempotent, closed-world read, so the safety burden is light. The description adds that the result is a comparison aggregated by agreement, which is useful context, but says nothing about pagination limits, response granularity, or the schema constraint that at least one of hsCode/destinationCountry must be supplied.

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

Conciseness5/5

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

Two tight sentences with the purpose front-loaded and the use case second. No filler, no repetition of schema or annotation content.

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?

With a full output schema and 100% parameter documentation, the description does not need to explain return values, and the read-only annotations cover the safety profile. It is nearly complete, missing only a pointer to differentiate it from the adjacent duty/tariff tools.

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%, with dates, limit, hsCode format guidance, and ISO2 country codes all documented in the schema itself. The description adds no parameter-level meaning beyond that, so the baseline 3 applies.

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?

The description states a specific verb and resource: it shows how much trade used an FTA preference versus full duty, broken down by agreement. That is more than a restatement of the title, but it never distinguishes itself from related siblings such as exim__duty__exposure, exim__tariff, or exim__landed__cost, so an agent must guess which duty tool fits.

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

Usage Guidelines3/5

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

'Use it to find unused FTA savings' gives a use case but no explicit when-not conditions and no alternatives. It implies the usage context without helping the agent choose against the other duty/tariff tools.

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

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FTA utilization

Input Schema

Output Schema

Schema Changelog

TDQS

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