EximAgent

Market trend over time

exim__market__trend

Read-onlyIdempotent

Returns a monthly or quarterly series of value, buyers and price for an HS code into a destination, with growth rates and a rising/falling/flat verdict.

Input Schema

Name	Required	Description
`to`	No	Latest month, YYYY-MM.
`from`	No	Earliest month, YYYY-MM.
`bucket`	No	time bucket: month\|quarter (def month)
`hsCode`	Yes	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`	Yes	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

removedInput schema / properties / dest

Removed value: -{
-  "description": "Destination country (ISO 2)",
-  "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 / 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.",
-  "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) filter (narrow to one supplier country)",
-  "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."

changedInput schema / required

Previous value: -[
-  "dest",
-  "hs6"
-]New value: +[
+  "destinationCountry",
+  "hsCode"
+]

Changed9 schema fields changedOct 14, 2026

addedInput schema / properties / dest

Added value: +{
+  "description": "Destination country (ISO 2)",
+  "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 / hs6

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) filter (narrow to one supplier country)",
+  "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)"

changedInput schema / required

Previous value: -[
-  "destinationCountry",
-  "hsCode"
-]New value: +[
+  "dest",
+  "hs6"
+]

Changed9 schema fields changedOct 14, 2026

removedInput schema / properties / dest

Removed value: -{
-  "description": "Destination country (ISO 2)",
-  "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 / 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.",
-  "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) filter (narrow to one supplier country)",
-  "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."

changedInput schema / required

Previous value: -[
-  "dest",
-  "hs6"
-]New value: +[
+  "destinationCountry",
+  "hsCode"
+]

Changed16 schema fields changedOct 13, 2026

removedInput schema / properties / --bucket

Removed value: -{
-  "description": "time bucket: month|quarter (def month)",
-  "enum": [
-    "month",
-    "quarter"
-  ],
-  "type": "string"
-}

removedInput schema / properties / --dest

Removed value: -{
-  "description": "Destination country (ISO 2)",
-  "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 / --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 / --origin

Removed value: -{
-  "description": "origin country (ISO 2) filter (narrow to one supplier country)",
-  "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 / bucket

Added value: +{
+  "description": "time bucket: month|quarter (def month)",
+  "enum": [
+    "month",
+    "quarter"
+  ],
+  "maxLength": 8000,
+  "type": "string"
+}

addedInput schema / properties / dest

Added value: +{
+  "description": "Destination country (ISO 2)",
+  "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 / hs6

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 / origin

Added value: +{
+  "description": "origin country (ISO 2) filter (narrow to one supplier country)",
+  "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"
+}

changedInput schema / required

Previous value: -[
-  "--dest",
-  "--hs6"
-]New value: +[
+  "dest",
+  "hs6"
+]

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$defs": {
+    "value0": {
+      "additionalProperties": false,
+      "properties": {
+        "bucket": {
+          "type": "string"
+        },
+        "coverage": {
+          "$ref": "#/$defs/value4"
+        },
+        "momentum": {
+          "type": "string"
+        },
+        "periods": {
+          "type": "integer"
+        },
+        "scope": {
+          "$ref": "#/$defs/value1"
+        },
+        "series": {
+          "$ref": "#/$defs/value2"
+        },
+        "verdict": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "bucket",
+        "coverage",
+        "momentum",
+        "periods",
+        "scope",
+        "series",
+        "verdict"
+      ],
+      "type": "object"
+    },
+    "value1": {
+      "anyOf": [
+        {
+          "additionalProperties": {
+            "type": "string"
+          },
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value10": {
+      "anyOf": [
+        {
+          "additionalProperties": {
+            "type": "number"
+          },
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value11": {
+      "anyOf": [
+        {
+          "items": {
+            "$ref": "#/$defs/value12"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value12": {
+      "additionalProperties": false,
+      "properties": {
+        "code": {
+          "type": "string"
+        },
+        "message": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "code",
+        "message"
+      ],
+      "type": "object"
+    },
+    "value13": {
+      "anyOf": [
+        {
+          "additionalProperties": {
+            "type": [
+              "null",
+              "boolean",
+              "number",
+              "string",
+              "array",
+              "object"
+            ]
+          },
+          "type": "object"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value2": {
+      "anyOf": [
+        {
+          "items": {
+            "$ref": "#/$defs/value3"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value3": {
+      "additionalProperties": false,
+      "properties": {
+        "avgPricePerKg": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "momValueChange": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "momentum": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "period": {
+          "type": "string"
+        },
+        "shipmentCount": {
+          "type": "integer"
+        },
+        "topBuyerShare": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "totalValueUsd": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "totalWeightKg": {
+          "type": "number"
+        },
+        "uniqueBuyers": {
+          "type": "integer"
+        },
+        "yoyValueChange": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "required": [
+        "avgPricePerKg",
+        "momValueChange",
+        "momentum",
+        "period",
+        "shipmentCount",
+        "topBuyerShare",
+        "totalValueUsd",
+        "totalWeightKg",
+        "uniqueBuyers",
+        "yoyValueChange"
+      ],
+      "type": "object"
+    },
+    "value4": {
+      "additionalProperties": false,
+      "properties": {
+        "blindSpot": {
+          "type": "string"
+        },
+        "confidence": {
+          "anyOf": [
+            {
+              "type": "number"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        },
+        "country": {
+          "$ref": "#/$defs/value5"
+        },
+        "display": {
+          "type": "string"
+        },
+        "period": {
+          "$ref": "#/$defs/value6"
+        },
+        "scope": {
+          "type": "string"
+        },
+        "status": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "confidence",
+        "country",
+        "display",
+        "period",
+        "status"
+      ],
+      "type": "object"
+    },
+    "value5": {
+      "anyOf": [
+        {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value6": {
+      "additionalProperties": false,
+      "properties": {
+        "end": {
+          "type": "string"
+        },
+        "start": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "end",
+        "start"
+      ],
+      "type": "object"
+    },
+    "value7": {
+      "anyOf": [
+        {
+          "items": {
+            "type": [
+              "null",
+              "boolean",
+              "number",
+              "string",
+              "array",
+              "object"
+            ]
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value8": {
+      "anyOf": [
+        {
+          "items": {
+            "$ref": "#/$defs/value9"
+          },
+          "type": "array"
+        },
+        {
+          "type": "null"
+        }
+      ]
+    },
+    "value9": {
+      "additionalProperties": false,
+      "properties": {
+        "command": {
+          "type": "string"
+        },
+        "cost": {
+          "type": "string"
+        },
+        "label": {
+          "type": "string"
+        },
+        "rationale": {
+          "type": "string"
+        }
+      },
+      "required": [
+        "command",
+        "cost",
+        "label",
+        "rationale"
+      ],
+      "type": "object"
+    }
+  },
+  "additionalProperties": false,
+  "properties": {
+    "_debug": {
+      "$ref": "#/$defs/value13"
+    },
+    "correlationId": {
+      "type": "string"
+    },
+    "data": {
+      "additionalProperties": false,
+      "properties": {
+        "context": {
+          "type": [
+            "null",
+            "boolean",
+            "number",
+            "string",
+            "array",
+            "object"
+          ]
+        },
+        "cursor": {
+          "type": "string"
+        },
+        "has_more": {
+          "type": "boolean"
+        },
+        "items": {
+          "anyOf": [
+            {
+              "items": {
+                "$ref": "#/$defs/value0"
+              },
+              "type": "array"
+            },
+            {
+              "type": "null"
+            }
+          ]
+        }
+      },
+      "required": [
+        "context",
+        "has_more",
+        "items"
+      ],
+      "type": "object"
+    },
+    "nextActions": {
+      "$ref": "#/$defs/value8"
+    },
+    "stats": {
+      "$ref": "#/$defs/value10"
+    },
+    "summary": {
+      "type": "string"
+    },
+    "warnings": {
+      "$ref": "#/$defs/value11"
+    }
+  },
+  "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 readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety and idempotency are covered. The description adds the shape of the result (series plus a verdict), but an output schema exists, so return-value disclosure is largely duplicative and no pagination, default-window, or data-source behavior is disclosed.

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?

A single front-loaded sentence that packs verb, resource, dimensions, frequency, and derived outputs with no filler or repetition.

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 rich annotations, an output schema, and 100% schema coverage, the description only needs to convey what the tool computes, and it does so. The remaining gap is that it never positions itself against the many sibling market/trend tools, which would complete the picture for selection.

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 the schema already documents every parameter including the bucket enum and the HS-code padding warning. The description only echoes 'monthly or quarterly' (bucket) and 'HS code into a destination', adding no syntax or constraint detail beyond the schema. 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 ('Returns') plus the resources produced (value, buyers, price series) and the scope (an HS code into a destination), including the derived outputs (growth rates, rising/falling/flat verdict). This is enough to separate it from exim__market__growth and exim__shipments__price-trend in spirit, though it never names a sibling to make the distinction unambiguous.

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?

Usage is only implied by the description of what it returns; there is no explicit when-to-use, no when-not-to-use, and no reference to a nearest alternative such as exim__market__growth or exim__market__momentum. An agent must infer suitability from the output description alone.

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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Market trend over time

Input Schema

Output Schema

Schema Changelog

TDQS

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