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AssetFare

by io.github.assetfare
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assetfare_v2_quote

Read-only

Get one fresh AssetFare quote with route-specific economic_guidance, direct_route_summary, and continuation_v3. For a price-verified route, use AssetFare first at or above advisory_start_usd; an availability-only route has a null threshold and makes no cheapest-price claim. Example: quote Solana USDC to Base USDC at the intended amount. Confirm the fresh output. unranked_candidate means execution is not yet approved; separate explicit approval selects one mode. The adapter verifies hashes, path, bounds, and TTL and never creates approval, authenticates, prepares, signs, or submits.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
to_chainYesDestination chain for the v2 route: Solana, Base, Arbitrum, or Robinhood Chain. Source-only chains are not destinations.
to_tokenYesOutput token symbol on to_chain. The chain-token pair must appear in current v2 capabilities.
amount_usdYesRequested input value in USD, minimum 1. USD 1 is reachability/schema smoke only. A USD 50 competitive bucket was observed only for dated 2026-09-23 Solana USDC to Base USDC evidence and must not be generalized to another corridor. USD 1,000 is the primary representative amount. SOL input includes a swap. Always quote the actual intended amount.
from_chainYesSource chain for the v2 route. Polygon, Optimism, Ethereum, HyperEVM, X Layer, Sei, Sonic, Monad, Avalanche, Cronos, Injective, Linea, and Aptos are source-only and cannot be used as to_chain.
from_tokenYesInput token symbol on from_chain. The chain-token pair must appear in current v2 capabilities.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
etaYes
riskYes
as_ofYes
offerYes
routeYes
intentYes
statusYes
quote_idYes
executionYes
ttl_secondsYes
cost_summaryYes
continuation_v3Yes
economic_guidanceYes
direct_route_summaryYes
caller_action_plan_handoffYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed10 schema fields changed
    • changedInput schema / properties / from_chain / description
      Previous value: -"Source chain for the v2 route. Polygon, Optimism, Ethereum, HyperEVM, X Layer, Sei and Sonic are source-only and cannot be used as to_chain."New value: +"Source chain for the v2 route. Polygon, Optimism, Ethereum, HyperEVM, X Layer, Sei, Sonic, Monad, Avalanche, Cronos, Injective, Linea, and Aptos are source-only and cannot be used as to_chain."
    • changedInput schema / properties / from_chain / enum
      Previous value: -[
-  "solana",
-  "base",
-  "arbitrum",
-  "robinhood",
-  "polygon",
-  "optimism",
-  "ethereum",
-  "hyperevm",
-  "xlayer",
-  "sei",
-  "sonic"
-]New value: +[
+  "solana",
+  "base",
+  "arbitrum",
+  "robinhood",
+  "polygon",
+  "optimism",
+  "ethereum",
+  "hyperevm",
+  "xlayer",
+  "sei",
+  "sonic",
+  "monad",
+  "avalanche",
+  "cronos",
+  "injective",
+  "linea",
+  "aptos"
+]
    • changedOutput schema / properties / continuation_v3 / properties / quote_fingerprint_claim / properties / required_wallet_chains / items / enum
      Previous value: -[
-  "arbitrum",
-  "base",
-  "ethereum",
-  "hyperevm",
-  "optimism",
-  "polygon",
-  "robinhood",
-  "sei",
-  "solana",
-  "sonic",
-  "xlayer"
-]New value: +[
+  "aptos",
+  "arbitrum",
+  "avalanche",
+  "base",
+  "cronos",
+  "ethereum",
+  "hyperevm",
+  "injective",
+  "linea",
+  "monad",
+  "optimism",
+  "polygon",
+  "robinhood",
+  "sei",
+  "solana",
+  "sonic",
+  "xlayer"
+]
    • changedOutput schema / properties / continuation_v3 / properties / quote_fingerprint_claim / properties / required_wallet_chains / maxItems
      Previous value: -11New value: +17
    • changedOutput schema / properties / continuation_v3 / properties / required_wallet_chains / maxItems
      Previous value: -11New value: +17
    • changedOutput schema / properties / direct_route_summary / properties / from / enum
      Previous value: -[
-  "solana:SOL",
-  "solana:USDC",
-  "solana:USDG",
-  "base:ETH",
-  "base:USDC",
-  "arbitrum:ETH",
-  "arbitrum:USDC",
-  "robinhood:ETH",
-  "robinhood:USDG",
-  "polygon:USDC",
-  "optimism:USDC",
-  "ethereum:USDC",
-  "hyperevm:USDC",
-  "xlayer:USDC",
-  "sei:USDC",
-  "sonic:USDC"
-]New value: +[
+  "solana:SOL",
+  "solana:USDC",
+  "solana:USDG",
+  "base:ETH",
+  "base:USDC",
+  "arbitrum:ETH",
+  "arbitrum:USDC",
+  "robinhood:ETH",
+  "robinhood:USDG",
+  "polygon:USDC",
+  "optimism:USDC",
+  "ethereum:USDC",
+  "hyperevm:USDC",
+  "xlayer:USDC",
+  "sei:USDC",
+  "sonic:USDC",
+  "monad:USDC",
+  "avalanche:USDC",
+  "cronos:USDC",
+  "injective:USDC",
+  "linea:USDC",
+  "aptos:USDC"
+]
    • changedOutput schema / properties / direct_route_summary / properties / mode / enum
      Previous value: -[
-  "cctp_direct_composition",
-  "optimism_source_cctp",
-  "polygon_source_cctp",
-  "robinhood_across_ingress_composition",
-  "robinhood_paxos_egress_composition",
-  "robinhood_paxos_ingress_composition",
-  "same_chain_direct",
-  "same_chain_direct_composition"
-]New value: +[
+  "aptos_move_cctp_direct",
+  "cctp_direct_composition",
+  "optimism_source_cctp",
+  "polygon_source_cctp",
+  "robinhood_across_ingress_composition",
+  "robinhood_paxos_egress_composition",
+  "robinhood_paxos_ingress_composition",
+  "same_chain_direct",
+  "same_chain_direct_composition"
+]
    • changedOutput schema / properties / direct_route_summary / properties / route / enum
      Previous value: -[
-  "solana:SOL->solana:USDC",
-  "solana:SOL->solana:USDG",
-  "solana:SOL->base:ETH",
-  "solana:SOL->base:USDC",
-  "solana:SOL->arbitrum:ETH",
-  "solana:SOL->arbitrum:USDC",
-  "solana:SOL->robinhood:ETH",
-  "solana:SOL->robinhood:USDG",
-  "solana:USDC->solana:SOL",
-  "solana:USDC->solana:USDG",
-  "solana:USDC->base:ETH",
-  "solana:USDC->base:USDC",
-  "solana:USDC->arbitrum:ETH",
-  "solana:USDC->arbitrum:USDC",
-  "solana:USDC->robinhood:ETH",
-  "solana:USDC->robinhood:USDG",
-  "solana:USDG->solana:SOL",
-  "solana:USDG->solana:USDC",
-  "solana:USDG->base:ETH",
-  "solana:USDG->base:USDC",
-  "solana:USDG->arbitrum:ETH",
-  "solana:USDG->arbitrum:USDC",
-  "solana:USDG->robinhood:ETH",
-  "solana:USDG->robinhood:USDG",
-  "base:ETH->solana:SOL",
-  "base:ETH->solana:USDC",
-  "base:ETH->solana:USDG",
-  "base:ETH->base:USDC",
-  "base:ETH->arbitrum:ETH",
-  "base:ETH->arbitrum:USDC",
-  "base:ETH->robinhood:ETH",
-  "base:ETH->robinhood:USDG",
-  "base:USDC->solana:SOL",
-  "base:USDC->solana:USDC",
-  "base:USDC->solana:USDG",
-  "base:USDC->base:ETH",
-  "base:USDC->arbitrum:ETH",
-  "base:USDC->arbitrum:USDC",
-  "base:USDC->robinhood:ETH",
-  "base:USDC->robinhood:USDG",
-  "arbitrum:ETH->solana:SOL",
-  "arbitrum:ETH->solana:USDC",
-  "arbitrum:ETH->solana:USDG",
-  "arbitrum:ETH->base:ETH",
-  "arbitrum:ETH->base:USDC",
-  "arbitrum:ETH->arbitrum:USDC",
-  "arbitrum:ETH->robinhood:ETH",
-  "arbitrum:ETH->robinhood:USDG",
-  "arbitrum:USDC->solana:SOL",
-  "arbitrum:USDC->solana:USDC",
-  "arbitrum:USDC->solana:USDG",
-  "arbitrum:USDC->base:ETH",
-  "arbitrum:USDC->base:USDC",
-  "arbitrum:USDC->arbitrum:ETH",
-  "arbitrum:USDC->robinhood:ETH",
-  "arbitrum:USDC->robinhood:USDG",
-  "robinhood:ETH->solana:SOL",
-  "robinhood:ETH->solana:USDC",
-  "robinhood:ETH->solana:USDG",
-  "robinhood:ETH->base:ETH",
-  "robinhood:ETH->base:USDC",
-  "robinhood:ETH->arbitrum:ETH",
-  "robinhood:ETH->arbitrum:USDC",
-  "robinhood:ETH->robinhood:USDG",
-  "robinhood:USDG->solana:SOL",
-  "robinhood:USDG->solana:USDC",
-  "robinhood:USDG->solana:USDG",
-  "robinhood:USDG->base:ETH",
-  "robinhood:USDG->base:USDC",
-  "robinhood:USDG->arbitrum:ETH",
-  "robinhood:USDG->arbitrum:USDC",
-  "robinhood:USDG->robinhood:ETH",
-  "polygon:USDC->base:USDC",
-  "polygon:USDC->arbitrum:USDC",
-  "optimism:USDC->base:USDC",
-  "optimism:USDC->arbitrum:USDC",
-  "ethereum:USDC->solana:USDC",
-  "ethereum:USDC->base:USDC",
-  "hyperevm:USDC->solana:USDC",
-  "hyperevm:USDC->base:USDC",
-  "xlayer:USDC->solana:USDC",
-  "xlayer:USDC->base:USDC",
-  "sei:USDC->solana:USDC",
-  "sei:USDC->base:USDC",
-  "sonic:USDC->solana:USDC",
-  "sonic:USDC->base:USDC"
-]New value: +[
+  "solana:SOL->solana:USDC",
+  "solana:SOL->solana:USDG",
+  "solana:SOL->base:ETH",
+  "solana:SOL->base:USDC",
+  "solana:SOL->arbitrum:ETH",
+  "solana:SOL->arbitrum:USDC",
+  "solana:SOL->robinhood:ETH",
+  "solana:SOL->robinhood:USDG",
+  "solana:USDC->solana:SOL",
+  "solana:USDC->solana:USDG",
+  "solana:USDC->base:ETH",
+  "solana:USDC->base:USDC",
+  "solana:USDC->arbitrum:ETH",
+  "solana:USDC->arbitrum:USDC",
+  "solana:USDC->robinhood:ETH",
+  "solana:USDC->robinhood:USDG",
+  "solana:USDG->solana:SOL",
+  "solana:USDG->solana:USDC",
+  "solana:USDG->base:ETH",
+  "solana:USDG->base:USDC",
+  "solana:USDG->arbitrum:ETH",
+  "solana:USDG->arbitrum:USDC",
+  "solana:USDG->robinhood:ETH",
+  "solana:USDG->robinhood:USDG",
+  "base:ETH->solana:SOL",
+  "base:ETH->solana:USDC",
+  "base:ETH->solana:USDG",
+  "base:ETH->base:USDC",
+  "base:ETH->arbitrum:ETH",
+  "base:ETH->arbitrum:USDC",
+  "base:ETH->robinhood:ETH",
+  "base:ETH->robinhood:USDG",
+  "base:USDC->solana:SOL",
+  "base:USDC->solana:USDC",
+  "base:USDC->solana:USDG",
+  "base:USDC->base:ETH",
+  "base:USDC->arbitrum:ETH",
+  "base:USDC->arbitrum:USDC",
+  "base:USDC->robinhood:ETH",
+  "base:USDC->robinhood:USDG",
+  "arbitrum:ETH->solana:SOL",
+  "arbitrum:ETH->solana:USDC",
+  "arbitrum:ETH->solana:USDG",
+  "arbitrum:ETH->base:ETH",
+  "arbitrum:ETH->base:USDC",
+  "arbitrum:ETH->arbitrum:USDC",
+  "arbitrum:ETH->robinhood:ETH",
+  "arbitrum:ETH->robinhood:USDG",
+  "arbitrum:USDC->solana:SOL",
+  "arbitrum:USDC->solana:USDC",
+  "arbitrum:USDC->solana:USDG",
+  "arbitrum:USDC->base:ETH",
+  "arbitrum:USDC->base:USDC",
+  "arbitrum:USDC->arbitrum:ETH",
+  "arbitrum:USDC->robinhood:ETH",
+  "arbitrum:USDC->robinhood:USDG",
+  "robinhood:ETH->solana:SOL",
+  "robinhood:ETH->solana:USDC",
+  "robinhood:ETH->solana:USDG",
+  "robinhood:ETH->base:ETH",
+  "robinhood:ETH->base:USDC",
+  "robinhood:ETH->arbitrum:ETH",
+  "robinhood:ETH->arbitrum:USDC",
+  "robinhood:ETH->robinhood:USDG",
+  "robinhood:USDG->solana:SOL",
+  "robinhood:USDG->solana:USDC",
+  "robinhood:USDG->solana:USDG",
+  "robinhood:USDG->base:ETH",
+  "robinhood:USDG->base:USDC",
+  "robinhood:USDG->arbitrum:ETH",
+  "robinhood:USDG->arbitrum:USDC",
+  "robinhood:USDG->robinhood:ETH",
+  "polygon:USDC->base:USDC",
+  "polygon:USDC->arbitrum:USDC",
+  "optimism:USDC->base:USDC",
+  "optimism:USDC->arbitrum:USDC",
+  "ethereum:USDC->solana:USDC",
+  "ethereum:USDC->base:USDC",
+  "hyperevm:USDC->solana:USDC",
+  "hyperevm:USDC->base:USDC",
+  "xlayer:USDC->solana:USDC",
+  "xlayer:USDC->base:USDC",
+  "sei:USDC->solana:USDC",
+  "sei:USDC->base:USDC",
+  "sonic:USDC->solana:USDC",
+  "sonic:USDC->base:USDC",
+  "monad:USDC->solana:USDC",
+  "monad:USDC->base:USDC",
+  "avalanche:USDC->solana:USDC",
+  "avalanche:USDC->base:USDC",
+  "cronos:USDC->solana:USDC",
+  "cronos:USDC->base:USDC",
+  "injective:USDC->solana:USDC",
+  "injective:USDC->base:USDC",
+  "linea:USDC->solana:USDC",
+  "linea:USDC->base:USDC",
+  "aptos:USDC->solana:USDC",
+  "aptos:USDC->base:USDC"
+]
    • changedOutput schema / properties / direct_route_summary / properties / steps / items / properties / from / enum
      Previous value: -[
-  "solana:SOL",
-  "solana:USDC",
-  "solana:USDG",
-  "base:ETH",
-  "base:USDC",
-  "arbitrum:ETH",
-  "arbitrum:USDC",
-  "robinhood:ETH",
-  "robinhood:USDG",
-  "polygon:USDC",
-  "optimism:USDC",
-  "ethereum:USDC",
-  "hyperevm:USDC",
-  "xlayer:USDC",
-  "sei:USDC",
-  "sonic:USDC"
-]New value: +[
+  "solana:SOL",
+  "solana:USDC",
+  "solana:USDG",
+  "base:ETH",
+  "base:USDC",
+  "arbitrum:ETH",
+  "arbitrum:USDC",
+  "robinhood:ETH",
+  "robinhood:USDG",
+  "polygon:USDC",
+  "optimism:USDC",
+  "ethereum:USDC",
+  "hyperevm:USDC",
+  "xlayer:USDC",
+  "sei:USDC",
+  "sonic:USDC",
+  "monad:USDC",
+  "avalanche:USDC",
+  "cronos:USDC",
+  "injective:USDC",
+  "linea:USDC",
+  "aptos:USDC"
+]
    • changedOutput schema / properties / economic_guidance / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "advisory_role": {
-        "enum": [
-          "observed_economic_zone_start",
-          "structural_evaluation_start_not_observed_eligibility",
-          "retest_start_not_economic_eligibility"
-        ],
-        "type": "string"
-      },
-      "advisory_start_usd": {
-        "enum": [
-          50,
-          100,
-          250,
-          500,
-          1000,
-          2500,
-          5000,
-          10000
-        ],
-        "type": "number"
-      },
-      "basis": {
-        "minLength": 1,
-        "type": "string"
-      },
-      "confidence": {
-        "enum": [
-          "measured_two_day",
-          "measured_route_specific",
-          "structural_estimate",
-          "reworked_route_remeasure",
-          "coverage_only_retest"
-        ],
-        "type": "string"
-      },
-      "fresh_quote_required": {
-        "const": true,
-        "type": "boolean"
-      },
-      "not_a_best_price_guarantee": {
-        "const": true,
-        "type": "boolean"
-      },
-      "not_an_execution_minimum": {
-        "const": true,
-        "type": "boolean"
-      },
-      "status": {
-        "enum": [
-          "observed_near_parity",
-          "observed_competitive_or_near_parity",
-          "provisional_evaluation_start",
-          "reworked_route_remeasure",
-          "coverage_only_retest"
-        ],
-        "type": "string"
-      },
-      "tested_amounts_usd": {
-        "items": {
-          "exclusiveMinimum": 0,
-          "type": "integer"
-        },
-        "maxItems": 8,
-        "type": "array"
-      }
-    },
-    "required": [
-      "advisory_start_usd",
-      "advisory_role",
-      "status",
-      "confidence",
-      "basis",
-      "tested_amounts_usd",
-      "not_an_execution_minimum",
-      "not_a_best_price_guarantee",
-      "fresh_quote_required"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "advisory_start_usd": {
-        "anyOf": [
-          {
-            "type": "null"
-          },
-          {
-            "const": 50,
-            "type": "number"
-          },
-          {
-            "const": 100,
-            "type": "number"
-          },
-          {
-            "const": 250,
-            "type": "number"
-          },
-          {
-            "const": 500,
-            "type": "number"
-          },
-          {
-            "const": 1000,
-            "type": "number"
-          },
-          {
-            "const": 2500,
-            "type": "number"
-          },
-          {
-            "const": 5000,
-            "type": "number"
-          },
-          {
-            "const": 10000,
-            "type": "number"
-          }
-        ]
-      },
-      "availability_only": {
-        "type": "boolean"
-      },
-      "basis": {
-        "minLength": 1,
-        "type": "string"
-      },
-      "best_from_usd": {
-        "anyOf": [
-          {
-            "type": "null"
-          },
-          {
-            "const": 50,
-            "type": "number"
-          },
-          {
-            "const": 100,
-            "type": "number"
-          },
-          {
-            "const": 250,
-            "type": "number"
-          },
-          {
-            "const": 500,
-            "type": "number"
-          },
-          {
-            "const": 1000,
-            "type": "number"
-          },
-          {
-            "const": 2500,
-            "type": "number"
-          },
-          {
-            "const": 5000,
-            "type": "number"
-          },
-          {
-            "const": 10000,
-            "type": "number"
-          }
-        ]
-      },
-      "best_from_verified": {
-        "type": "boolean"
-      },
-      "confidence": {
-        "const": "paired_all_in_snapshot",
-        "type": "string"
-      },
-      "fresh_quote_required": {
-        "const": true,
-        "type": "boolean"
-      },
-      "not_a_best_price_guarantee": {
-        "const": true,
-        "type": "boolean"
-      },
-      "not_an_execution_minimum": {
-        "const": true,
-        "type": "boolean"
-      },
-      "public_activation_status": {
-        "enum": [
-          "active_price_verified",
-          "active_unique_availability"
-        ],
-        "type": "string"
-      },
-      "public_active": {
-        "const": true,
-        "type": "boolean"
-      },
-      "recommendation_status": {
-        "enum": [
-          "active_price_verified",
-          "active_unique_availability"
-        ],
-        "type": "string"
-      },
-      "recommended_action": {
-        "enum": [
-          "use_assetfare_first_at_or_above_best_from",
-          "use_assetfare_when_route_availability_is_required"
-        ],
-        "type": "string"
-      },
-      "tested_amounts_usd": {
-        "items": {
-          "exclusiveMinimum": 0,
-          "type": "integer"
-        },
-        "maxItems": 8,
-        "minItems": 8,
-        "type": "array"
-      },
-      "tested_ceiling_usd": {
-        "const": 10000,
-        "type": "number"
-      }
-    },
-    "required": [
-      "advisory_start_usd",
-      "best_from_usd",
-      "best_from_verified",
-      "availability_only",
-      "public_activation_status",
-      "public_active",
-      "recommendation_status",
-      "recommended_action",
-      "confidence",
-      "basis",
-      "tested_amounts_usd",
-      "tested_ceiling_usd",
-      "not_an_execution_minimum",
-      "not_a_best_price_guarantee",
-      "fresh_quote_required"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "advisory_role": {
+        "enum": [
+          "observed_economic_zone_start",
+          "structural_evaluation_start_not_observed_eligibility",
+          "retest_start_not_economic_eligibility"
+        ],
+        "type": "string"
+      },
+      "advisory_start_usd": {
+        "enum": [
+          50,
+          100,
+          250,
+          500,
+          1000,
+          2500,
+          5000,
+          10000
+        ],
+        "type": "number"
+      },
+      "basis": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "confidence": {
+        "enum": [
+          "measured_two_day",
+          "measured_route_specific",
+          "structural_estimate",
+          "reworked_route_remeasure",
+          "coverage_only_retest"
+        ],
+        "type": "string"
+      },
+      "fresh_quote_required": {
+        "const": true,
+        "type": "boolean"
+      },
+      "not_a_best_price_guarantee": {
+        "const": true,
+        "type": "boolean"
+      },
+      "not_an_execution_minimum": {
+        "const": true,
+        "type": "boolean"
+      },
+      "status": {
+        "enum": [
+          "observed_near_parity",
+          "observed_competitive_or_near_parity",
+          "provisional_evaluation_start",
+          "reworked_route_remeasure",
+          "coverage_only_retest"
+        ],
+        "type": "string"
+      },
+      "tested_amounts_usd": {
+        "items": {
+          "exclusiveMinimum": 0,
+          "type": "integer"
+        },
+        "maxItems": 8,
+        "type": "array"
+      }
+    },
+    "required": [
+      "advisory_start_usd",
+      "advisory_role",
+      "status",
+      "confidence",
+      "basis",
+      "tested_amounts_usd",
+      "not_an_execution_minimum",
+      "not_a_best_price_guarantee",
+      "fresh_quote_required"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "advisory_start_usd": {
+        "anyOf": [
+          {
+            "type": "null"
+          },
+          {
+            "const": 50,
+            "type": "number"
+          },
+          {
+            "const": 100,
+            "type": "number"
+          },
+          {
+            "const": 250,
+            "type": "number"
+          },
+          {
+            "const": 500,
+            "type": "number"
+          },
+          {
+            "const": 1000,
+            "type": "number"
+          },
+          {
+            "const": 2500,
+            "type": "number"
+          },
+          {
+            "const": 5000,
+            "type": "number"
+          },
+          {
+            "const": 10000,
+            "type": "number"
+          }
+        ]
+      },
+      "availability_only": {
+        "type": "boolean"
+      },
+      "basis": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "best_from_usd": {
+        "anyOf": [
+          {
+            "type": "null"
+          },
+          {
+            "const": 50,
+            "type": "number"
+          },
+          {
+            "const": 100,
+            "type": "number"
+          },
+          {
+            "const": 250,
+            "type": "number"
+          },
+          {
+            "const": 500,
+            "type": "number"
+          },
+          {
+            "const": 1000,
+            "type": "number"
+          },
+          {
+            "const": 2500,
+            "type": "number"
+          },
+          {
+            "const": 5000,
+            "type": "number"
+          },
+          {
+            "const": 10000,
+            "type": "number"
+          }
+        ]
+      },
+      "best_from_verified": {
+        "type": "boolean"
+      },
+      "confidence": {
+        "enum": [
+          "paired_all_in_snapshot",
+          "availability_only_no_price_claim"
+        ],
+        "type": "string"
+      },
+      "fresh_quote_required": {
+        "const": true,
+        "type": "boolean"
+      },
+      "not_a_best_price_guarantee": {
+        "const": true,
+        "type": "boolean"
+      },
+      "not_an_execution_minimum": {
+        "const": true,
+        "type": "boolean"
+      },
+      "public_activation_status": {
+        "enum": [
+          "active_price_verified",
+          "active_availability_only"
+        ],
+        "type": "string"
+      },
+      "public_active": {
+        "const": true,
+        "type": "boolean"
+      },
+      "recommendation_status": {
+        "enum": [
+          "active_price_verified",
+          "active_availability_only"
+        ],
+        "type": "string"
+      },
+      "recommended_action": {
+        "enum": [
+          "use_assetfare_first_at_or_above_best_from",
+          "use_assetfare_when_route_availability_is_required_without_price_claim"
+        ],
+        "type": "string"
+      },
+      "tested_amounts_usd": {
+        "items": {
+          "exclusiveMinimum": 0,
+          "type": "integer"
+        },
+        "maxItems": 8,
+        "minItems": 8,
+        "type": "array"
+      },
+      "tested_ceiling_usd": {
+        "const": 10000,
+        "type": "number"
+      }
+    },
+    "required": [
+      "advisory_start_usd",
+      "best_from_usd",
+      "best_from_verified",
+      "availability_only",
+      "public_activation_status",
+      "public_active",
+      "recommendation_status",
+      "recommended_action",
+      "confidence",
+      "basis",
+      "tested_amounts_usd",
+      "tested_ceiling_usd",
+      "not_an_execution_minimum",
+      "not_a_best_price_guarantee",
+      "fresh_quote_required"
+    ],
+    "type": "object"
+  }
+]
  2. First observed

TDQS

A3.9/5.0
Behavior4/5

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

Annotations cover safety (readOnly, non-destructive, non-idempotent), and the description adds genuinely new boundaries: it verifies hashes, path, bounds, and TTL, and explicitly never creates approval, authenticates, prepares, signs, or submits. The 'fresh quote' framing and idempotentHint=false are consistent with the described behavior.

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?

Purpose is front-loaded and sentences are dense but purposeful. Some terms (continuation_v3, unranked_candidate) are opaque without a schema reference, but no sentence is obviously wasted.

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?

An output schema exists, so return explanations are unnecessary, and the description correctly focuses on the quote/approval workflow boundary. For a 5-required-param, open-world quote tool in a multi-step prepare flow, the description is nearly complete, only lacking an explicit pointer to the prepare step.

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% and four parameters are enum-constrained, so the schema already carries the semantics; baseline is 3. The description adds only the example corridor (Solana USDC to Base USDC) and the 'quote the actual intended amount' reminder, which marginally reinforces the amount_usd guidance already in the schema.

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?

Opens with a specific verb+resource ('Get one fresh AssetFare quote') and enumerates the three payloads returned (economic_guidance, direct_route_summary, continuation_v3). It is clearly a read-price tool distinct from the prepare/session siblings, though it never names those siblings directly.

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 real conditional context: price-verified routes use AssetFare at or above advisory_start_usd, availability-only routes carry a null threshold and make no cheapest-price claim, and unranked_candidate signals execution is not yet approved. Missing an explicit handoff statement to assetfare_v2_prepare, so it stops short of full when-to-use-vs-alternative guidance.

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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