x402-data-gateway

Audit Agent Surface Budget

agent_surface_budget_audit

Measure one public service's credential-free MCP tools/list, OpenAPI, or both declared discovery surfaces before any tool call or target payment. Use agent_discoverability_audit for catalog reach and rank, seller_integrity_audit for one exact operation's response contract, or this tool for byte budgets, heaviest definitions, missing selection contracts, and progressive-discovery fixes. Unselected surfaces are not fetched or judged. It follows no redirect, calls no target tool, sends no credential or target payment, and returns no target schema, response body, or session identifier.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`origin`	Yes	Credential-free public HTTPS service origin on port 443, with no path or query.
`mcpPath`	No	Exact root-relative MCP streamable-HTTP path.	/mcp
`openApiPath`	No	Exact root-relative OpenAPI JSON path.	/openapi.json
`surfaceMode`	No	Audit MCP only, OpenAPI only, or both. Unselected surfaces are not fetched or judged.	both
`mcpBudgetBytes`	No	Maximum preferred raw MCP tools/list response size in bytes.
`openApiBudgetBytes`	No	Maximum preferred raw OpenAPI document size in bytes.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`ok`	Yes
`mcp`	Yes
`actions`	Yes
`openapi`	Yes
`product`	Yes
`request`	Yes
`version`	Yes
`boundary`	Yes
`decision`	Yes
`checkedAt`	Yes

Schema Changelog

Changes observed during successful MCP inspections. Dates show when Glama detected each change.

Changed2 schema fields changedAug 30, 2026

changedInput schema / properties / mcpPath / pattern

Previous value: -"^\\/(?!\\/)[^?#{]+$"New value: +"^\\/[^/?#{}][^?#{}]*$"

changedInput schema / properties / openApiPath / pattern

Previous value: -"^\\/(?!\\/)[^?#{]+$"New value: +"^\\/[^/?#{}][^?#{}]*$"

Changed6 schema fields changedAug 12, 2026

addedInput schema / properties / surfaceMode

Added value: +{
+  "default": "both",
+  "description": "Audit MCP only, OpenAPI only, or both. Unselected surfaces are not fetched or judged.",
+  "enum": [
+    "mcp",
+    "openapi",
+    "both"
+  ],
+  "type": "string"
+}

changedOutput schema / properties / mcp / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "available": {
-        "const": false,
-        "type": "boolean"
-      },
-      "failureCode": {
-        "enum": [
-          "authentication_required",
-          "bounded_transport_failure",
-          "connection_reset",
-          "dns_failed",
-          "method_not_allowed",
-          "rate_limited",
-          "redirect_rejected",
-          "surface_invalid",
-          "surface_too_large",
-          "surface_unavailable",
-          "transport_timeout",
-          "upstream_unavailable"
-        ],
-        "type": "string"
-      },
-      "httpStatus": {
-        "maximum": 599,
-        "minimum": 300,
-        "type": "integer"
-      }
-    },
-    "required": [
-      "available",
-      "failureCode"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "available": {
-        "const": true,
-        "type": "boolean"
-      },
-      "budgetBytes": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "byteDerivedTokenEstimate": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "bytes": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "heaviestTools": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "bytes": {
-              "minimum": 0,
-              "type": "integer"
-            },
-            "descriptionBytes": {
-              "minimum": 0,
-              "type": "integer"
-            },
-            "hasDescription": {
-              "type": "boolean"
-            },
-            "hasInputSchema": {
-              "type": "boolean"
-            },
-            "hasOutputSchema": {
-              "type": "boolean"
-            },
-            "hasTitle": {
-              "type": "boolean"
-            },
-            "inputSchemaBytes": {
-              "minimum": 0,
-              "type": "integer"
-            },
-            "name": {
-              "type": "string"
-            },
-            "outputSchemaBytes": {
-              "minimum": 0,
-              "type": "integer"
-            }
-          },
-          "required": [
-            "name",
-            "bytes",
-            "descriptionBytes",
-            "inputSchemaBytes",
-            "outputSchemaBytes",
-            "hasTitle",
-            "hasDescription",
-            "hasInputSchema",
-            "hasOutputSchema"
-          ],
-          "type": "object"
-        },
-        "maxItems": 8,
-        "type": "array"
-      },
-      "missingDescriptionCount": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "missingInputSchemaCount": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "missingOutputSchemaCount": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "missingTitleCount": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "pageCount": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "protocolVersion": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "selectionBytes": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "server": {
-        "additionalProperties": false,
-        "properties": {
-          "name": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "version": {
-            "type": [
-              "string",
-              "null"
-            ]
-          }
-        },
-        "required": [
-          "name",
-          "version"
-        ],
-        "type": "object"
-      },
-      "toolCount": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "withinBudget": {
-        "type": "boolean"
-      }
-    },
-    "required": [
-      "available",
-      "bytes",
-      "byteDerivedTokenEstimate",
-      "budgetBytes",
-      "withinBudget",
-      "protocolVersion",
-      "server",
-      "toolCount",
-      "pageCount",
-      "selectionBytes",
-      "missingTitleCount",
-      "missingDescriptionCount",
-      "missingInputSchemaCount",
-      "missingOutputSchemaCount",
-      "heaviestTools"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "requested": {
+        "const": false,
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "requested"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "available": {
+        "const": false,
+        "type": "boolean"
+      },
+      "failureCode": {
+        "enum": [
+          "authentication_required",
+          "bounded_transport_failure",
+          "connection_reset",
+          "dns_failed",
+          "method_not_allowed",
+          "rate_limited",
+          "redirect_rejected",
+          "surface_invalid",
+          "surface_too_large",
+          "surface_unavailable",
+          "transport_timeout",
+          "upstream_unavailable"
+        ],
+        "type": "string"
+      },
+      "httpStatus": {
+        "maximum": 599,
+        "minimum": 300,
+        "type": "integer"
+      },
+      "requested": {
+        "const": true,
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "requested",
+      "available",
+      "failureCode"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "available": {
+        "const": true,
+        "type": "boolean"
+      },
+      "budgetBytes": {
+        "exclusiveMinimum": 0,
+        "type": "integer"
+      },
+      "byteDerivedTokenEstimate": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "bytes": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "heaviestTools": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "bytes": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "descriptionBytes": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "hasDescription": {
+              "type": "boolean"
+            },
+            "hasInputSchema": {
+              "type": "boolean"
+            },
+            "hasOutputSchema": {
+              "type": "boolean"
+            },
+            "hasTitle": {
+              "type": "boolean"
+            },
+            "inputSchemaBytes": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "name": {
+              "type": "string"
+            },
+            "outputSchemaBytes": {
+              "minimum": 0,
+              "type": "integer"
+            }
+          },
+          "required": [
+            "name",
+            "bytes",
+            "descriptionBytes",
+            "inputSchemaBytes",
+            "outputSchemaBytes",
+            "hasTitle",
+            "hasDescription",
+            "hasInputSchema",
+            "hasOutputSchema"
+          ],
+          "type": "object"
+        },
+        "maxItems": 8,
+        "type": "array"
+      },
+      "missingDescriptionCount": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "missingInputSchemaCount": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "missingOutputSchemaCount": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "missingTitleCount": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "pageCount": {
+        "exclusiveMinimum": 0,
+        "type": "integer"
+      },
+      "protocolVersion": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "requested": {
+        "const": true,
+        "type": "boolean"
+      },
+      "selectionBytes": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "server": {
+        "additionalProperties": false,
+        "properties": {
+          "name": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "version": {
+            "type": [
+              "string",
+              "null"
+            ]
+          }
+        },
+        "required": [
+          "name",
+          "version"
+        ],
+        "type": "object"
+      },
+      "toolCount": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "withinBudget": {
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "requested",
+      "available",
+      "bytes",
+      "byteDerivedTokenEstimate",
+      "budgetBytes",
+      "withinBudget",
+      "protocolVersion",
+      "server",
+      "toolCount",
+      "pageCount",
+      "selectionBytes",
+      "missingTitleCount",
+      "missingDescriptionCount",
+      "missingInputSchemaCount",
+      "missingOutputSchemaCount",
+      "heaviestTools"
+    ],
+    "type": "object"
+  }
+]

changedOutput schema / properties / openapi / anyOf

Previous value: -[
-  {
-    "$ref": "#/properties/mcp/anyOf/0"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "available": {
-        "const": true,
-        "type": "boolean"
-      },
-      "budgetBytes": {
-        "exclusiveMinimum": 0,
-        "type": "integer"
-      },
-      "byteDerivedTokenEstimate": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "bytes": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "heaviestOperations": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "bytes": {
-              "minimum": 0,
-              "type": "integer"
-            },
-            "hasOperationId": {
-              "type": "boolean"
-            },
-            "method": {
-              "enum": [
-                "GET",
-                "POST",
-                "PUT",
-                "PATCH",
-                "DELETE",
-                "HEAD",
-                "OPTIONS"
-              ],
-              "type": "string"
-            },
-            "path": {
-              "type": "string"
-            },
-            "summaryBytes": {
-              "minimum": 0,
-              "type": "integer"
-            }
-          },
-          "required": [
-            "method",
-            "path",
-            "bytes",
-            "summaryBytes",
-            "hasOperationId"
-          ],
-          "type": "object"
-        },
-        "maxItems": 8,
-        "type": "array"
-      },
-      "missingOperationIdCount": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "operationCount": {
-        "minimum": 0,
-        "type": "integer"
-      },
-      "withinBudget": {
-        "type": "boolean"
-      }
-    },
-    "required": [
-      "available",
-      "bytes",
-      "byteDerivedTokenEstimate",
-      "budgetBytes",
-      "withinBudget",
-      "operationCount",
-      "missingOperationIdCount",
-      "heaviestOperations"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "$ref": "#/properties/mcp/anyOf/0"
+  },
+  {
+    "$ref": "#/properties/mcp/anyOf/1"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "available": {
+        "const": true,
+        "type": "boolean"
+      },
+      "budgetBytes": {
+        "exclusiveMinimum": 0,
+        "type": "integer"
+      },
+      "byteDerivedTokenEstimate": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "bytes": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "heaviestOperations": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "bytes": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "hasOperationId": {
+              "type": "boolean"
+            },
+            "method": {
+              "enum": [
+                "GET",
+                "POST",
+                "PUT",
+                "PATCH",
+                "DELETE",
+                "HEAD",
+                "OPTIONS"
+              ],
+              "type": "string"
+            },
+            "path": {
+              "type": "string"
+            },
+            "summaryBytes": {
+              "minimum": 0,
+              "type": "integer"
+            }
+          },
+          "required": [
+            "method",
+            "path",
+            "bytes",
+            "summaryBytes",
+            "hasOperationId"
+          ],
+          "type": "object"
+        },
+        "maxItems": 8,
+        "type": "array"
+      },
+      "missingOperationIdCount": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "operationCount": {
+        "minimum": 0,
+        "type": "integer"
+      },
+      "requested": {
+        "const": true,
+        "type": "boolean"
+      },
+      "withinBudget": {
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "requested",
+      "available",
+      "bytes",
+      "byteDerivedTokenEstimate",
+      "budgetBytes",
+      "withinBudget",
+      "operationCount",
+      "missingOperationIdCount",
+      "heaviestOperations"
+    ],
+    "type": "object"
+  }
+]

addedOutput schema / properties / request / properties / surfaceMode

Added value: +{
+  "enum": [
+    "mcp",
+    "openapi",
+    "both"
+  ],
+  "type": "string"
+}

changedOutput schema / properties / request / required

Previous value: -[
-  "origin",
-  "mcpPath",
-  "openApiPath",
-  "mcpBudgetBytes",
-  "openApiBudgetBytes"
-]New value: +[
+  "origin",
+  "surfaceMode",
+  "mcpPath",
+  "openApiPath",
+  "mcpBudgetBytes",
+  "openApiBudgetBytes"
+]

changedOutput schema / properties / version / const
```
Previous value: -"1.1.0"New value: +"1.2.0"
```

Changed1 schema field changedAug 12, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "$schema": "http://json-schema.org/draft-07/schema#",
+  "additionalProperties": false,
+  "properties": {
+    "actions": {
+      "items": {
+        "type": "string"
+      },
+      "maxItems": 16,
+      "type": "array"
+    },
+    "boundary": {
+      "additionalProperties": false,
+      "properties": {
+        "credentialsUsed": {
+          "const": false,
+          "type": "boolean"
+        },
+        "redirectsFollowed": {
+          "const": false,
+          "type": "boolean"
+        },
+        "responseBodiesReturned": {
+          "const": false,
+          "type": "boolean"
+        },
+        "schemasRetained": {
+          "const": false,
+          "type": "boolean"
+        },
+        "sessionIdentifiersReturned": {
+          "const": false,
+          "type": "boolean"
+        },
+        "targetPaymentSent": {
+          "const": false,
+          "type": "boolean"
+        },
+        "targetPaymentSigned": {
+          "const": false,
+          "type": "boolean"
+        },
+        "tokenEstimateMethod": {
+          "const": "ceil(UTF-8 bytes / 4); comparative estimate, not tokenizer billing",
+          "type": "string"
+        },
+        "toolsCalled": {
+          "const": false,
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "credentialsUsed",
+        "toolsCalled",
+        "targetPaymentSigned",
+        "targetPaymentSent",
+        "redirectsFollowed",
+        "responseBodiesReturned",
+        "schemasRetained",
+        "sessionIdentifiersReturned",
+        "tokenEstimateMethod"
+      ],
+      "type": "object"
+    },
+    "checkedAt": {
+      "format": "date-time",
+      "type": "string"
+    },
+    "decision": {
+      "enum": [
+        "within_budget",
+        "optimize",
+        "surface_incomplete"
+      ],
+      "type": "string"
+    },
+    "mcp": {
+      "anyOf": [
+        {
+          "additionalProperties": false,
+          "properties": {
+            "available": {
+              "const": false,
+              "type": "boolean"
+            },
+            "failureCode": {
+              "enum": [
+                "authentication_required",
+                "bounded_transport_failure",
+                "connection_reset",
+                "dns_failed",
+                "method_not_allowed",
+                "rate_limited",
+                "redirect_rejected",
+                "surface_invalid",
+                "surface_too_large",
+                "surface_unavailable",
+                "transport_timeout",
+                "upstream_unavailable"
+              ],
+              "type": "string"
+            },
+            "httpStatus": {
+              "maximum": 599,
+              "minimum": 300,
+              "type": "integer"
+            }
+          },
+          "required": [
+            "available",
+            "failureCode"
+          ],
+          "type": "object"
+        },
+        {
+          "additionalProperties": false,
+          "properties": {
+            "available": {
+              "const": true,
+              "type": "boolean"
+            },
+            "budgetBytes": {
+              "exclusiveMinimum": 0,
+              "type": "integer"
+            },
+            "byteDerivedTokenEstimate": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "bytes": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "heaviestTools": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "bytes": {
+                    "minimum": 0,
+                    "type": "integer"
+                  },
+                  "descriptionBytes": {
+                    "minimum": 0,
+                    "type": "integer"
+                  },
+                  "hasDescription": {
+                    "type": "boolean"
+                  },
+                  "hasInputSchema": {
+                    "type": "boolean"
+                  },
+                  "hasOutputSchema": {
+                    "type": "boolean"
+                  },
+                  "hasTitle": {
+                    "type": "boolean"
+                  },
+                  "inputSchemaBytes": {
+                    "minimum": 0,
+                    "type": "integer"
+                  },
+                  "name": {
+                    "type": "string"
+                  },
+                  "outputSchemaBytes": {
+                    "minimum": 0,
+                    "type": "integer"
+                  }
+                },
+                "required": [
+                  "name",
+                  "bytes",
+                  "descriptionBytes",
+                  "inputSchemaBytes",
+                  "outputSchemaBytes",
+                  "hasTitle",
+                  "hasDescription",
+                  "hasInputSchema",
+                  "hasOutputSchema"
+                ],
+                "type": "object"
+              },
+              "maxItems": 8,
+              "type": "array"
+            },
+            "missingDescriptionCount": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "missingInputSchemaCount": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "missingOutputSchemaCount": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "missingTitleCount": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "pageCount": {
+              "exclusiveMinimum": 0,
+              "type": "integer"
+            },
+            "protocolVersion": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "selectionBytes": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "server": {
+              "additionalProperties": false,
+              "properties": {
+                "name": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                },
+                "version": {
+                  "type": [
+                    "string",
+                    "null"
+                  ]
+                }
+              },
+              "required": [
+                "name",
+                "version"
+              ],
+              "type": "object"
+            },
+            "toolCount": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "withinBudget": {
+              "type": "boolean"
+            }
+          },
+          "required": [
+            "available",
+            "bytes",
+            "byteDerivedTokenEstimate",
+            "budgetBytes",
+            "withinBudget",
+            "protocolVersion",
+            "server",
+            "toolCount",
+            "pageCount",
+            "selectionBytes",
+            "missingTitleCount",
+            "missingDescriptionCount",
+            "missingInputSchemaCount",
+            "missingOutputSchemaCount",
+            "heaviestTools"
+          ],
+          "type": "object"
+        }
+      ]
+    },
+    "ok": {
+      "type": "boolean"
+    },
+    "openapi": {
+      "anyOf": [
+        {
+          "$ref": "#/properties/mcp/anyOf/0"
+        },
+        {
+          "additionalProperties": false,
+          "properties": {
+            "available": {
+              "const": true,
+              "type": "boolean"
+            },
+            "budgetBytes": {
+              "exclusiveMinimum": 0,
+              "type": "integer"
+            },
+            "byteDerivedTokenEstimate": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "bytes": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "heaviestOperations": {
+              "items": {
+                "additionalProperties": false,
+                "properties": {
+                  "bytes": {
+                    "minimum": 0,
+                    "type": "integer"
+                  },
+                  "hasOperationId": {
+                    "type": "boolean"
+                  },
+                  "method": {
+                    "enum": [
+                      "GET",
+                      "POST",
+                      "PUT",
+                      "PATCH",
+                      "DELETE",
+                      "HEAD",
+                      "OPTIONS"
+                    ],
+                    "type": "string"
+                  },
+                  "path": {
+                    "type": "string"
+                  },
+                  "summaryBytes": {
+                    "minimum": 0,
+                    "type": "integer"
+                  }
+                },
+                "required": [
+                  "method",
+                  "path",
+                  "bytes",
+                  "summaryBytes",
+                  "hasOperationId"
+                ],
+                "type": "object"
+              },
+              "maxItems": 8,
+              "type": "array"
+            },
+            "missingOperationIdCount": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "operationCount": {
+              "minimum": 0,
+              "type": "integer"
+            },
+            "withinBudget": {
+              "type": "boolean"
+            }
+          },
+          "required": [
+            "available",
+            "bytes",
+            "byteDerivedTokenEstimate",
+            "budgetBytes",
+            "withinBudget",
+            "operationCount",
+            "missingOperationIdCount",
+            "heaviestOperations"
+          ],
+          "type": "object"
+        }
+      ]
+    },
+    "product": {
+      "const": "samedaydesk-agent-surface-budget-audit",
+      "type": "string"
+    },
+    "request": {
+      "additionalProperties": false,
+      "properties": {
+        "mcpBudgetBytes": {
+          "exclusiveMinimum": 0,
+          "type": "integer"
+        },
+        "mcpPath": {
+          "type": "string"
+        },
+        "openApiBudgetBytes": {
+          "exclusiveMinimum": 0,
+          "type": "integer"
+        },
+        "openApiPath": {
+          "type": "string"
+        },
+        "origin": {
+          "format": "uri",
+          "type": "string"
+        }
+      },
+      "required": [
+        "origin",
+        "mcpPath",
+        "openApiPath",
+        "mcpBudgetBytes",
+        "openApiBudgetBytes"
+      ],
+      "type": "object"
+    },
+    "version": {
+      "const": "1.1.0",
+      "type": "string"
+    }
+  },
+  "required": [
+    "ok",
+    "product",
+    "version",
+    "checkedAt",
+    "decision",
+    "request",
+    "mcp",
+    "openapi",
+    "actions",
+    "boundary"
+  ],
+  "type": "object"
+}

AddedAug 12, 2026

TDQS

A4.7/5.0

Behavior5/5

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

No annotations are provided, so the description carries the full burden of behavioral disclosure. It does this unusually well by explicitly stating that the tool follows no redirect, calls no target tool, sends no credential or target payment, and returns no target schema, response body, or session identifier. These safety and side-effect disclosures are highly relevant for agent invocation.

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 dense but every sentence earns its place: the first states the core action, the second routes to sibling tools, and the third covers safety and non-side-effects. It is front-loaded with the most important information and contains no filler.

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

Completeness5/5

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

Given the tool has six parameters, an output schema, and no annotations, the description provides enough context for an agent to select and invoke it correctly. It explains purpose, alternatives, safety behavior, surface-selection semantics, and what will not be returned, while the output schema covers return-structure details.

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 input schema already documents all six parameters thoroughly. The description adds useful context about byte budgets and unselected surfaces, but it does not need to explain individual parameters; the baseline of 3 is appropriate when the schema carries the parameter-level detail.

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 opens with a specific verb ('Measure') and a precise resource: a public service's credential-free MCP tools/list, OpenAPI, or both discovery surfaces. It also names sibling tools and clarifies what this tool does not do, making it easily distinguishable from agent_discoverability_audit and seller_integrity_audit.

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

Usage Guidelines5/5

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

The description explicitly says when to use this tool ('before any tool call or target payment') and gives exact routing guidance: use agent_discoverability_audit for catalog reach and rank, seller_integrity_audit for a single operation's response contract, and this tool for byte budgets, heaviest definitions, and progressive-discovery fixes. It also states that unselected surfaces are not fetched or judged, which clarifies selection behavior.

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

All x402-data-gateway tools Inspect

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TDQS

A4.1/5.0

Disambiguation3/5

Several tools cluster around the same domain: there are multiple audit tools, multiple preflight tools, multiple receipt/settlement tools, and two wallet-policy-conformance tools. The descriptions are carefully distinguished with 'use X instead' notes, but an agent would still need to read closely to separate `agent_discoverability_audit` from `agent_surface_budget_audit` and `seller_integrity_audit` from `payment_offer_preflight`.

Naming Consistency4/5

Most names follow a readable, snake_case pattern with a domain prefix or action stem, such as `morpho_position`, `transaction_receipt`, `wallet_enrich`, and `contract_qualified_search`. The convention is not fully uniform—`read`, `extract`, `scan`, and `schemaforge` are standalone verbs or compounds, and `agent_surface_budget_audit` is a much longer construction—but the style is consistent enough to navigate.

Tool Count3/5

22 tools is at the heavy end of a data-gateway scope, especially since they spread across x402 discovery, Morpho lending, web domain audits, wallet policy, and blockchain receipts. Each tool explains its existence, but the set feels broader than one central data-gateway concern.

Completeness4/5

The tools form a coherent read-only x402/agent-commerce lifecycle: catalog search, discoverability, surface/seller integrity, payment offer preflight, settlement proof, and transaction receipt verification. There are some peripheral tools that do not directly serve x402, and no payment or execution action exists, but the read-only audit gate is intentionally complete and lacks dead ends.

Audit Agent Surface Budget

Input Schema

Output Schema

Schema Changelog

TDQS

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TDQS

Resources