Gate Info MCP

info_marketsnapshot_get_institutional_metrics

Read-onlyIdempotent

BTC/ETH institutional ETF/CME/CFTC daily metrics (OpenSearch). asset=BTC|ETH|all; channel=all|etf|cme|cftc nulls non-selected fields. CME often null with data_status cme_source_not_procured. Returns assets[].latest and series[]. Read-only public research data. No account access, no order placement or fund transfers. Not investment advice.

Input Schema

TableJSON Schema

Name	Required	Description
`asset`	No	BTC\|ETH\|all; default BTC. all returns BTC and ETH groups.
`limit`	No	1-366; default 30.
`channel`	No	all\|etf\|cme\|cftc; default all.
`end_date`	No	YYYY-MM-DD; default latest part_date available from OpenSearch.
`start_date`	No	YYYY-MM-DD; default end_date - 30d.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`asset`	Yes
`count`	Yes
`total`	Yes
`assets`	Yes
`channel`	Yes
`end_date`	Yes
`start_date`	Yes
`data_status`	Yes
`duration_ms`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed128 schema fields changedAug 27, 2026
- addedInput schema / additionalProperties
```
Added value: +false
```
- addedOutput schema / additionalProperties
```
Added value: +false
```
- addedOutput schema / properties / assets / items / additionalProperties
```
Added value: +false
```
- addedOutput schema / properties / assets / items / properties / latest / additionalProperties
```
Added value: +false
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_contract_unit_raw / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cftc_contract_unit_raw / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_contract_unit_raw / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "string"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_contract_unit_raw / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_contract_unit_raw / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly_underlying_amount / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly_underlying_amount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly_underlying_amount / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly_underlying_amount / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly_underlying_amount / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_oi / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_change / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_change / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_change / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_change / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_change / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_underlying_amount / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_underlying_amount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_underlying_amount / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_underlying_amount / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_underlying_amount / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_volume / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume_underlying_amount / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_volume_underlying_amount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume_underlying_amount / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume_underlying_amount / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume_underlying_amount / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_net_inflow_usd / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / etf_net_inflow_usd / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_net_inflow_usd / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_net_inflow_usd / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_net_inflow_usd / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_total_assets_usd / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / etf_total_assets_usd / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_total_assets_usd / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_total_assets_usd / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_total_assets_usd / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_value_traded_usd / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / etf_value_traded_usd / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_value_traded_usd / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_value_traded_usd / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_value_traded_usd / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / institutional_channel_signal / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / latest / properties / institutional_channel_signal / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / institutional_channel_signal / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "string"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / latest / properties / institutional_channel_signal / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / latest / properties / institutional_channel_signal / type
```
Added value: +"object"
```
- changedOutput schema / properties / assets / items / properties / latest / type
```
Previous value: -"object"New value: +[
+  "null",
+  "object"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / additionalProperties
```
Added value: +false
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_contract_unit_raw / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cftc_contract_unit_raw / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_contract_unit_raw / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "string"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_contract_unit_raw / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_contract_unit_raw / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly_underlying_amount / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly_underlying_amount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly_underlying_amount / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly_underlying_amount / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly_underlying_amount / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_change / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_change / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_change / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_change / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_change / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_underlying_amount / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_underlying_amount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_underlying_amount / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_underlying_amount / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_underlying_amount / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume_underlying_amount / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume_underlying_amount / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume_underlying_amount / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume_underlying_amount / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume_underlying_amount / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_net_inflow_usd / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / etf_net_inflow_usd / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_net_inflow_usd / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_net_inflow_usd / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_net_inflow_usd / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_total_assets_usd / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / etf_total_assets_usd / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_total_assets_usd / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_total_assets_usd / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_total_assets_usd / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_value_traded_usd / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / etf_value_traded_usd / anyOf
```
Removed value: -[
-  {
-    "type": "number"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_value_traded_usd / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "number"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_value_traded_usd / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_value_traded_usd / type
```
Added value: +"object"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / institutional_channel_signal / additionalProperties
```
Added value: +false
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / institutional_channel_signal / anyOf
```
Removed value: -[
-  {
-    "type": "string"
-  },
-  {
-    "type": "null"
-  }
-]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / institutional_channel_signal / properties
```
Added value: +{
+  "Valid": {
+    "type": "boolean"
+  },
+  "Value": {
+    "type": "string"
+  }
+}
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / institutional_channel_signal / required
```
Added value: +[
+  "Value",
+  "Valid"
+]
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / institutional_channel_signal / type
```
Added value: +"object"
```
- changedOutput schema / properties / assets / items / properties / series / type
```
Previous value: -"array"New value: +[
+  "null",
+  "array"
+]
```
- changedOutput schema / properties / assets / type
```
Previous value: -"array"New value: +[
+  "null",
+  "array"
+]
```
Changed48 schema fields changedMay 27, 2026
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_contract_unit_raw / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cftc_contract_unit_raw / type
```
Removed value: -"string"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly_underlying_amount / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cftc_oi_weekly_underlying_amount / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_oi / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_change / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_change / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_underlying_amount / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_oi_underlying_amount / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_volume / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / cme_volume_underlying_amount / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / cme_volume_underlying_amount / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_net_inflow_usd / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / etf_net_inflow_usd / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_total_assets_usd / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / etf_total_assets_usd / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / etf_value_traded_usd / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / etf_value_traded_usd / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / latest / properties / institutional_channel_signal / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / latest / properties / institutional_channel_signal / type
```
Removed value: -"string"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_contract_unit_raw / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cftc_contract_unit_raw / type
```
Removed value: -"string"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly_underlying_amount / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cftc_oi_weekly_underlying_amount / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_change / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_change / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_underlying_amount / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_oi_underlying_amount / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume_underlying_amount / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / cme_volume_underlying_amount / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_net_inflow_usd / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / etf_net_inflow_usd / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_total_assets_usd / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / etf_total_assets_usd / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / etf_value_traded_usd / anyOf
```
Added value: +[
+  {
+    "type": "number"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / etf_value_traded_usd / type
```
Removed value: -"number"
```
- addedOutput schema / properties / assets / items / properties / series / items / properties / institutional_channel_signal / anyOf
```
Added value: +[
+  {
+    "type": "string"
+  },
+  {
+    "type": "null"
+  }
+]
```
- removedOutput schema / properties / assets / items / properties / series / items / properties / institutional_channel_signal / type
```
Removed value: -"string"
```
AddedMay 27, 2026

TDQS

A4.6/5.0

Behavior5/5

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

Annotations already mark read-only, idempotent, and non-destructive; the description adds explicit 'read-only public research data', 'No account access, no order placement or fund transfers', and 'Not investment advice'. It also discloses the CME null-data behavior.

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?

The description is compact and every sentence adds either scope, parameter behavior, output shape, or safety context. There is 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?

It covers defaults, return shape, data-quality quirks, and safety context. It does not enumerate every output field, but the description is sufficient given the output schema is available.

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

Parameters4/5

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

Schema covers 100% of parameters with defaults and ranges. The description adds meaningful behavior beyond the schema: non-selected channel fields are null, asset=all returns both groups, and CME may be null with data_status.

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

Purpose5/5

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

The description names a specific resource and action: BTC/ETH institutional ETF/CME/CFTC daily metrics. This clearly distinguishes it from sibling market snapshot, kline, and platform metric tools.

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?

It states what data is returned and when quirks apply, such as CME null and data_status. Selection guidance is implicit rather than explicitly contrasting alternatives, but the context is clear.

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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