SuperCatch

Inspect my exact listing

supercatch_get_listing

Read-onlyIdempotent

Inspect one owned listing ID, version, card identity, certification, asking/effective sale prices, stock and image references. Catalog IDs alone never select a seller copy. Images include at most the first four references; use supercatch_get_listing_images for selected indexes. Lifecycle state does not imply publication eligibility. Use supercatch_get_listing for this read in the connected account. Supply only the fields in its strict input schema. No prices, inventory, orders, automation, marketplace publication or provider configuration are changed. Returns a Shared MCP Baseline 1.0.0 envelope with explicit scope, provenance, unknown values, omissions and typed errors. Requires OAuth store:read consent. Requires a currently approved owned store. Prices exclude shipping and tax. Graded and raw copies remain distinct; estimates and asks are not sold transactions. Read-only and unmetered; no persistent plans or provider submissions. Invalid fields, unavailable stores and foreign or deleted targets fail without private records. Expired cursors require a fresh search. Provider failures are explicit errors.

Example tool call

This call uses example arguments supplied in the tool’s input schema.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "listing_id": "owned-listing-id"
    },
    "name": "supercatch_get_listing"
  }
}

Input Schema

Name	Required	Description	Default
`listing_id`	Yes	Opaque identifier returned by the authorized application; never substitute a display label or another entity's ID.

Output Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedNov 6, 2026

changedOutput schema / anyOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "context": {
-        "additionalProperties": false,
-        "properties": {
-          "account_ref": {
-            "type": "string"
-          },
-          "app_id": {
-            "const": "supercatch",
-            "type": "string"
-          },
-          "connection_ref": {
-            "type": "string"
-          },
-          "environment": {
-            "enum": [
-              "public",
-              "production",
-              "staging",
-              "paper",
-              "sandbox"
-            ],
-            "type": "string"
-          },
-          "tenant_ref": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "timezone": {
-            "minLength": 1,
-            "type": "string"
-          }
-        },
-        "required": [
-          "app_id",
-          "tenant_ref",
-          "environment",
-          "timezone"
-        ],
-        "type": "object"
-      },
-      "data": {
-        "additionalProperties": false,
-        "properties": {
-          "app_url": {
-            "format": "uri",
-            "type": "string"
-          },
-          "asking_price": {
-            "additionalProperties": false,
-            "properties": {
-              "amount": {
-                "pattern": "^-?(0|[1-9][0-9]*)(\\.[0-9]+)?$",
-                "type": "string"
-              },
-              "currency": {
-                "const": "USD",
-                "type": "string"
-              }
-            },
-            "required": [
-              "amount",
-              "currency"
-            ],
-            "type": "object"
-          },
-          "card": {
-            "anyOf": [
-              {
-                "additionalProperties": false,
-                "properties": {
-                  "autograph_status": {
-                    "enum": [
-                      "yes",
-                      "no",
-                      "unknown"
-                    ],
-                    "type": "string"
-                  },
-                  "card_number": {
-                    "type": [
-                      "string",
-                      "null"
-                    ]
-                  },
-                  "catalog_card_id": {
-                    "description": "Opaque identifier returned by the authorized application; never substitute a display label or another entity's ID.",
-                    "maxLength": 128,
-                    "minLength": 1,
-                    "type": "string"
-                  },
-                  "set_name": {
-                    "type": [
-                      "string",
-                      "null"
-                    ]
-                  },
-                  "sport_or_game": {
-                    "type": "string"
-                  },
-                  "subject": {
-                    "type": "string"
-                  },
-                  "variation": {
-                    "type": [
-                      "string",
-                      "null"
-                    ]
-                  },
-                  "year": {
-                    "anyOf": [
-                      {
-                        "maximum": 9007199254740991,
-                        "minimum": -9007199254740991,
-                        "type": "integer"
-                      },
-                      {
-                        "type": "null"
-                      }
-                    ]
-                  }
-                },
-                "required": [
-                  "catalog_card_id",
-                  "sport_or_game",
-                  "year",
-                  "set_name",
-                  "card_number",
-                  "subject",
-                  "variation",
-                  "autograph_status"
-                ],
-                "type": "object"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "effective_sale_price": {
-            "anyOf": [
-              {
-                "additionalProperties": false,
-                "properties": {
-                  "amount": {
-                    "pattern": "^-?(0|[1-9][0-9]*)(\\.[0-9]+)?$",
-                    "type": "string"
-                  },
-                  "currency": {
-                    "const": "USD",
-                    "type": "string"
-                  }
-                },
-                "required": [
-                  "amount",
-                  "currency"
-                ],
-                "type": "object"
-              },
-              {
-                "type": "null"
-              }
-            ]
-          },
-          "grade": {
-            "oneOf": [
-              {
-                "additionalProperties": false,
-                "properties": {
-                  "condition": {
-                    "type": [
-                      "string",
-                      "null"
-                    ]
-                  },
-                  "kind": {
-                    "const": "raw",
-                    "type": "string"
-                  }
-                },
-                "required": [
-                  "kind",
-                  "condition"
-                ],
-                "type": "object"
-              },
-              {
-                "additionalProperties": false,
-                "properties": {
-                  "certification_id": {
-                    "type": [
-                      "string",
-                      "null"
-                    ]
-                  },
-                  "company": {
-                    "type": "string"
-                  },
-                  "grade": {
-                    "type": [
-                      "string",
-                      "null"
-                    ]
-                  },
-                  "kind": {
-                    "const": "graded",
-                    "type": "string"
-                  }
-                },
-                "required": [
-                  "kind",
-                  "company",
-                  "grade",
-                  "certification_id"
-                ],
-                "type": "object"
-              }
-            ]
-          },
-          "image_count": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "images": {
-            "items": {
-              "additionalProperties": false,
-              "properties": {
-                "artifact_id": {
-                  "type": "string"
-                },
-                "image_id": {
-                  "type": "string"
-                },
-                "is_primary": {
-                  "type": "boolean"
-                }
-              },
-              "required": [
-                "image_id",
-                "artifact_id",
-                "is_primary"
-              ],
-              "type": "object"
-            },
-            "maxItems": 4,
-            "type": "array"
-          },
-          "inventory": {
-            "additionalProperties": false,
-            "properties": {
-              "available": {
-                "maximum": 9007199254740991,
-                "minimum": -9007199254740991,
-                "type": "integer"
-              },
-              "basis": {
-                "type": "string"
-              },
-              "observed_at": {
-                "anyOf": [
-                  {
-                    "format": "date-time",
-                    "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-                    "type": "string"
-                  },
-                  {
-                    "type": "null"
-                  }
-                ]
-              },
-              "on_hand": {
-                "maximum": 9007199254740991,
-                "minimum": -9007199254740991,
-                "type": "integer"
-              },
-              "reserved": {
-                "maximum": 9007199254740991,
-                "minimum": -9007199254740991,
-                "type": "integer"
-              }
-            },
-            "required": [
-              "on_hand",
-              "reserved",
-              "available",
-              "basis",
-              "observed_at"
-            ],
-            "type": "object"
-          },
-          "lifecycle_state": {
-            "enum": [
-              "DRAFT",
-              "PENDING",
-              "PROCESSING",
-              "ACTIVE",
-              "SOLD",
-              "RESERVED",
-              "INACTIVE",
-              "REMOVED",
-              "REJECTED",
-              "SHOWCASE"
-            ],
-            "type": "string"
-          },
-          "listing_id": {
-            "description": "Opaque identifier returned by the authorized application; never substitute a display label or another entity's ID.",
-            "maxLength": 128,
-            "minLength": 1,
-            "type": "string"
-          },
-          "sku": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "store_id": {
-            "description": "Opaque identifier returned by the authorized application; never substitute a display label or another entity's ID.",
-            "maxLength": 128,
-            "minLength": 1,
-            "type": "string"
-          },
-          "title": {
-            "type": "string"
-          },
-          "version": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "listing_id",
-          "store_id",
-          "version",
-          "card",
-          "grade",
-          "sku",
-          "title",
-          "asking_price",
-          "effective_sale_price",
-          "inventory",
-          "lifecycle_state",
-          "image_count",
-          "images",
-          "app_url"
-        ],
-        "type": "object"
-      },
-      "generated_at": {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-        "type": "string"
-      },
-      "kind": {
-        "const": "record",
-        "type": "string"
-      },
-      "next_actions": {
-        "items": {
-          "oneOf": [
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "tool_name": {
-                  "minLength": 1,
-                  "type": "string"
-                },
-                "type": {
-                  "const": "call_tool",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "tool_name",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "open_url",
-                  "type": "string"
-                },
-                "url": {
-                  "format": "uri",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "url",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "fields": {
-                  "items": {
-                    "type": "string"
-                  },
-                  "type": "array"
-                },
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "provide_input",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "fields",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "retry_after_ms": {
-                  "maximum": 9007199254740991,
-                  "minimum": 0,
-                  "type": "integer"
-                },
-                "type": {
-                  "const": "wait",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "retry_after_ms",
-                "reason"
-              ],
-              "type": "object"
-            }
-          ]
-        },
-        "type": "array"
-      },
-      "provenance": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "freshness": {
-              "enum": [
-                "fresh",
-                "stale",
-                "unknown"
-              ],
-              "type": "string"
-            },
-            "observed_at": {
-              "anyOf": [
-                {
-                  "format": "date-time",
-                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "retrieved_at": {
-              "format": "date-time",
-              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-              "type": "string"
-            },
-            "source_id": {
-              "minLength": 1,
-              "type": "string"
-            },
-            "source_url": {
-              "format": "uri",
-              "type": "string"
-            },
-            "source_version": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "source_id",
-            "observed_at",
-            "retrieved_at",
-            "freshness"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "request_id": {
-        "minLength": 1,
-        "type": "string"
-      },
-      "schema_version": {
-        "const": "1.0.0",
-        "type": "string"
-      },
-      "warnings": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "code": {
-              "type": "string"
-            },
-            "field": {
-              "type": "string"
-            },
-            "message": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "code",
-            "message"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      }
-    },
-    "required": [
-      "schema_version",
-      "kind",
-      "request_id",
-      "generated_at",
-      "context",
-      "data",
-      "warnings",
-      "next_actions"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "context": {
-        "additionalProperties": false,
-        "properties": {
-          "account_ref": {
-            "type": "string"
-          },
-          "app_id": {
-            "const": "supercatch",
-            "type": "string"
-          },
-          "connection_ref": {
-            "type": "string"
-          },
-          "environment": {
-            "enum": [
-              "public",
-              "production",
-              "staging",
-              "paper",
-              "sandbox"
-            ],
-            "type": "string"
-          },
-          "tenant_ref": {
-            "type": [
-              "string",
-              "null"
-            ]
-          },
-          "timezone": {
-            "minLength": 1,
-            "type": "string"
-          }
-        },
-        "required": [
-          "app_id",
-          "tenant_ref",
-          "environment",
-          "timezone"
-        ],
-        "type": "object"
-      },
-      "data": {
-        "additionalProperties": false,
-        "properties": {
-          "code": {
-            "enum": [
-              "invalid_input",
-              "unauthenticated",
-              "permission_denied",
-              "consent_required",
-              "ambiguous_target",
-              "not_found",
-              "unsupported_capability",
-              "configuration_required",
-              "integration_expired",
-              "stale_data",
-              "version_conflict",
-              "approval_required",
-              "approval_expired",
-              "idempotency_conflict",
-              "rate_limited",
-              "quota_exceeded",
-              "provider_unavailable",
-              "outcome_unknown",
-              "reconciliation_required",
-              "cursor_expired",
-              "artifact_expired",
-              "internal_error"
-            ],
-            "type": "string"
-          },
-          "domain_code": {
-            "type": "string"
-          },
-          "effects": {
-            "enum": [
-              "none",
-              "committed",
-              "partial",
-              "unknown"
-            ],
-            "type": "string"
-          },
-          "field_errors": {
-            "items": {
-              "additionalProperties": false,
-              "properties": {
-                "field": {
-                  "type": "string"
-                },
-                "message": {
-                  "type": "string"
-                }
-              },
-              "required": [
-                "field",
-                "message"
-              ],
-              "type": "object"
-            },
-            "type": "array"
-          },
-          "message": {
-            "type": "string"
-          },
-          "operation_id": {
-            "type": "string"
-          },
-          "retry_after_ms": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "retry_strategy": {
-            "enum": [
-              "never",
-              "same_request",
-              "after_delay",
-              "after_correction",
-              "reconcile_first"
-            ],
-            "type": "string"
-          }
-        },
-        "required": [
-          "code",
-          "message",
-          "effects",
-          "retry_strategy"
-        ],
-        "type": "object"
-      },
-      "generated_at": {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-        "type": "string"
-      },
-      "kind": {
-        "const": "error",
-        "type": "string"
-      },
-      "next_actions": {
-        "items": {
-          "oneOf": [
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "tool_name": {
-                  "minLength": 1,
-                  "type": "string"
-                },
-                "type": {
-                  "const": "call_tool",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "tool_name",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "open_url",
-                  "type": "string"
-                },
-                "url": {
-                  "format": "uri",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "url",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "fields": {
-                  "items": {
-                    "type": "string"
-                  },
-                  "type": "array"
-                },
-                "reason": {
-                  "type": "string"
-                },
-                "type": {
-                  "const": "provide_input",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "fields",
-                "reason"
-              ],
-              "type": "object"
-            },
-            {
-              "additionalProperties": false,
-              "properties": {
-                "reason": {
-                  "type": "string"
-                },
-                "retry_after_ms": {
-                  "maximum": 9007199254740991,
-                  "minimum": 0,
-                  "type": "integer"
-                },
-                "type": {
-                  "const": "wait",
-                  "type": "string"
-                }
-              },
-              "required": [
-                "type",
-                "retry_after_ms",
-                "reason"
-              ],
-              "type": "object"
-            }
-          ]
-        },
-        "type": "array"
-      },
-      "provenance": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "freshness": {
-              "enum": [
-                "fresh",
-                "stale",
-                "unknown"
-              ],
-              "type": "string"
-            },
-            "observed_at": {
-              "anyOf": [
-                {
-                  "format": "date-time",
-                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "retrieved_at": {
-              "format": "date-time",
-              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-              "type": "string"
-            },
-            "source_id": {
-              "minLength": 1,
-              "type": "string"
-            },
-            "source_url": {
-              "format": "uri",
-              "type": "string"
-            },
-            "source_version": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "source_id",
-            "observed_at",
-            "retrieved_at",
-            "freshness"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "request_id": {
-        "minLength": 1,
-        "type": "string"
-      },
-      "schema_version": {
-        "const": "1.0.0",
-        "type": "string"
-      },
-      "warnings": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "code": {
-              "type": "string"
-            },
-            "field": {
-              "type": "string"
-            },
-            "message": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "code",
-            "message"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      }
-    },
-    "required": [
-      "schema_version",
-      "kind",
-      "request_id",
-      "generated_at",
-      "context",
-      "data",
-      "warnings",
-      "next_actions"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "additionalProperties": false,
+        "properties": {
+          "account_ref": {
+            "type": "string"
+          },
+          "app_id": {
+            "const": "supercatch",
+            "type": "string"
+          },
+          "connection_ref": {
+            "type": "string"
+          },
+          "environment": {
+            "enum": [
+              "public",
+              "production",
+              "staging",
+              "paper",
+              "sandbox"
+            ],
+            "type": "string"
+          },
+          "tenant_ref": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "timezone": {
+            "minLength": 1,
+            "type": "string"
+          }
+        },
+        "required": [
+          "app_id",
+          "tenant_ref",
+          "environment",
+          "timezone"
+        ],
+        "type": "object"
+      },
+      "data": {
+        "additionalProperties": false,
+        "properties": {
+          "app_url": {
+            "format": "uri",
+            "type": "string"
+          },
+          "asking_price": {
+            "additionalProperties": false,
+            "properties": {
+              "amount": {
+                "pattern": "^-?(0|[1-9][0-9]*)(\\.[0-9]+)?$",
+                "type": "string"
+              },
+              "currency": {
+                "const": "USD",
+                "type": "string"
+              }
+            },
+            "required": [
+              "amount",
+              "currency"
+            ],
+            "type": "object"
+          },
+          "card": {
+            "anyOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "autograph_status": {
+                    "enum": [
+                      "yes",
+                      "no",
+                      "unknown"
+                    ],
+                    "type": "string"
+                  },
+                  "card_number": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "catalog_card_id": {
+                    "description": "Opaque identifier returned by the authorized application; never substitute a display label or another entity's ID.",
+                    "maxLength": 128,
+                    "minLength": 1,
+                    "type": "string"
+                  },
+                  "set_name": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "sport_or_game": {
+                    "type": "string"
+                  },
+                  "subject": {
+                    "type": "string"
+                  },
+                  "subset": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "variation": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "year": {
+                    "anyOf": [
+                      {
+                        "maximum": 9007199254740991,
+                        "minimum": -9007199254740991,
+                        "type": "integer"
+                      },
+                      {
+                        "type": "null"
+                      }
+                    ]
+                  }
+                },
+                "required": [
+                  "catalog_card_id",
+                  "sport_or_game",
+                  "year",
+                  "set_name",
+                  "card_number",
+                  "subject",
+                  "subset",
+                  "variation",
+                  "autograph_status"
+                ],
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "effective_sale_price": {
+            "anyOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "amount": {
+                    "pattern": "^-?(0|[1-9][0-9]*)(\\.[0-9]+)?$",
+                    "type": "string"
+                  },
+                  "currency": {
+                    "const": "USD",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "amount",
+                  "currency"
+                ],
+                "type": "object"
+              },
+              {
+                "type": "null"
+              }
+            ]
+          },
+          "grade": {
+            "oneOf": [
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "condition": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "kind": {
+                    "const": "raw",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "kind",
+                  "condition"
+                ],
+                "type": "object"
+              },
+              {
+                "additionalProperties": false,
+                "properties": {
+                  "certification_id": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "company": {
+                    "type": "string"
+                  },
+                  "grade": {
+                    "type": [
+                      "string",
+                      "null"
+                    ]
+                  },
+                  "kind": {
+                    "const": "graded",
+                    "type": "string"
+                  }
+                },
+                "required": [
+                  "kind",
+                  "company",
+                  "grade",
+                  "certification_id"
+                ],
+                "type": "object"
+              }
+            ]
+          },
+          "image_count": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "images": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "artifact_id": {
+                  "type": "string"
+                },
+                "image_id": {
+                  "type": "string"
+                },
+                "is_primary": {
+                  "type": "boolean"
+                }
+              },
+              "required": [
+                "image_id",
+                "artifact_id",
+                "is_primary"
+              ],
+              "type": "object"
+            },
+            "maxItems": 4,
+            "type": "array"
+          },
+          "inventory": {
+            "additionalProperties": false,
+            "properties": {
+              "available": {
+                "maximum": 9007199254740991,
+                "minimum": -9007199254740991,
+                "type": "integer"
+              },
+              "basis": {
+                "type": "string"
+              },
+              "observed_at": {
+                "anyOf": [
+                  {
+                    "format": "date-time",
+                    "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+                    "type": "string"
+                  },
+                  {
+                    "type": "null"
+                  }
+                ]
+              },
+              "on_hand": {
+                "maximum": 9007199254740991,
+                "minimum": -9007199254740991,
+                "type": "integer"
+              },
+              "reserved": {
+                "maximum": 9007199254740991,
+                "minimum": -9007199254740991,
+                "type": "integer"
+              }
+            },
+            "required": [
+              "on_hand",
+              "reserved",
+              "available",
+              "basis",
+              "observed_at"
+            ],
+            "type": "object"
+          },
+          "lifecycle_state": {
+            "enum": [
+              "DRAFT",
+              "PENDING",
+              "PROCESSING",
+              "ACTIVE",
+              "SOLD",
+              "RESERVED",
+              "INACTIVE",
+              "REMOVED",
+              "REJECTED",
+              "SHOWCASE"
+            ],
+            "type": "string"
+          },
+          "listing_id": {
+            "description": "Opaque identifier returned by the authorized application; never substitute a display label or another entity's ID.",
+            "maxLength": 128,
+            "minLength": 1,
+            "type": "string"
+          },
+          "sku": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "store_id": {
+            "description": "Opaque identifier returned by the authorized application; never substitute a display label or another entity's ID.",
+            "maxLength": 128,
+            "minLength": 1,
+            "type": "string"
+          },
+          "title": {
+            "type": "string"
+          },
+          "version": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "listing_id",
+          "store_id",
+          "version",
+          "card",
+          "grade",
+          "sku",
+          "title",
+          "asking_price",
+          "effective_sale_price",
+          "inventory",
+          "lifecycle_state",
+          "image_count",
+          "images",
+          "app_url"
+        ],
+        "type": "object"
+      },
+      "generated_at": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+        "type": "string"
+      },
+      "kind": {
+        "const": "record",
+        "type": "string"
+      },
+      "next_actions": {
+        "items": {
+          "oneOf": [
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "tool_name": {
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "type": {
+                  "const": "call_tool",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "tool_name",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "open_url",
+                  "type": "string"
+                },
+                "url": {
+                  "format": "uri",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "url",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "fields": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "provide_input",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "fields",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "retry_after_ms": {
+                  "maximum": 9007199254740991,
+                  "minimum": 0,
+                  "type": "integer"
+                },
+                "type": {
+                  "const": "wait",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "retry_after_ms",
+                "reason"
+              ],
+              "type": "object"
+            }
+          ]
+        },
+        "type": "array"
+      },
+      "provenance": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "freshness": {
+              "enum": [
+                "fresh",
+                "stale",
+                "unknown"
+              ],
+              "type": "string"
+            },
+            "observed_at": {
+              "anyOf": [
+                {
+                  "format": "date-time",
+                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "retrieved_at": {
+              "format": "date-time",
+              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+              "type": "string"
+            },
+            "source_id": {
+              "minLength": 1,
+              "type": "string"
+            },
+            "source_url": {
+              "format": "uri",
+              "type": "string"
+            },
+            "source_version": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "source_id",
+            "observed_at",
+            "retrieved_at",
+            "freshness"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "request_id": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "schema_version": {
+        "const": "1.0.0",
+        "type": "string"
+      },
+      "warnings": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "code": {
+              "type": "string"
+            },
+            "field": {
+              "type": "string"
+            },
+            "message": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "code",
+            "message"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "schema_version",
+      "kind",
+      "request_id",
+      "generated_at",
+      "context",
+      "data",
+      "warnings",
+      "next_actions"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "context": {
+        "additionalProperties": false,
+        "properties": {
+          "account_ref": {
+            "type": "string"
+          },
+          "app_id": {
+            "const": "supercatch",
+            "type": "string"
+          },
+          "connection_ref": {
+            "type": "string"
+          },
+          "environment": {
+            "enum": [
+              "public",
+              "production",
+              "staging",
+              "paper",
+              "sandbox"
+            ],
+            "type": "string"
+          },
+          "tenant_ref": {
+            "type": [
+              "string",
+              "null"
+            ]
+          },
+          "timezone": {
+            "minLength": 1,
+            "type": "string"
+          }
+        },
+        "required": [
+          "app_id",
+          "tenant_ref",
+          "environment",
+          "timezone"
+        ],
+        "type": "object"
+      },
+      "data": {
+        "additionalProperties": false,
+        "properties": {
+          "code": {
+            "enum": [
+              "invalid_input",
+              "unauthenticated",
+              "permission_denied",
+              "consent_required",
+              "ambiguous_target",
+              "not_found",
+              "unsupported_capability",
+              "configuration_required",
+              "integration_expired",
+              "stale_data",
+              "version_conflict",
+              "approval_required",
+              "approval_expired",
+              "idempotency_conflict",
+              "rate_limited",
+              "quota_exceeded",
+              "provider_unavailable",
+              "outcome_unknown",
+              "reconciliation_required",
+              "cursor_expired",
+              "artifact_expired",
+              "internal_error"
+            ],
+            "type": "string"
+          },
+          "domain_code": {
+            "type": "string"
+          },
+          "effects": {
+            "enum": [
+              "none",
+              "committed",
+              "partial",
+              "unknown"
+            ],
+            "type": "string"
+          },
+          "field_errors": {
+            "items": {
+              "additionalProperties": false,
+              "properties": {
+                "field": {
+                  "type": "string"
+                },
+                "message": {
+                  "type": "string"
+                }
+              },
+              "required": [
+                "field",
+                "message"
+              ],
+              "type": "object"
+            },
+            "type": "array"
+          },
+          "message": {
+            "type": "string"
+          },
+          "operation_id": {
+            "type": "string"
+          },
+          "retry_after_ms": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "retry_strategy": {
+            "enum": [
+              "never",
+              "same_request",
+              "after_delay",
+              "after_correction",
+              "reconcile_first"
+            ],
+            "type": "string"
+          }
+        },
+        "required": [
+          "code",
+          "message",
+          "effects",
+          "retry_strategy"
+        ],
+        "type": "object"
+      },
+      "generated_at": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+        "type": "string"
+      },
+      "kind": {
+        "const": "error",
+        "type": "string"
+      },
+      "next_actions": {
+        "items": {
+          "oneOf": [
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "tool_name": {
+                  "minLength": 1,
+                  "type": "string"
+                },
+                "type": {
+                  "const": "call_tool",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "tool_name",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "open_url",
+                  "type": "string"
+                },
+                "url": {
+                  "format": "uri",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "url",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "fields": {
+                  "items": {
+                    "type": "string"
+                  },
+                  "type": "array"
+                },
+                "reason": {
+                  "type": "string"
+                },
+                "type": {
+                  "const": "provide_input",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "fields",
+                "reason"
+              ],
+              "type": "object"
+            },
+            {
+              "additionalProperties": false,
+              "properties": {
+                "reason": {
+                  "type": "string"
+                },
+                "retry_after_ms": {
+                  "maximum": 9007199254740991,
+                  "minimum": 0,
+                  "type": "integer"
+                },
+                "type": {
+                  "const": "wait",
+                  "type": "string"
+                }
+              },
+              "required": [
+                "type",
+                "retry_after_ms",
+                "reason"
+              ],
+              "type": "object"
+            }
+          ]
+        },
+        "type": "array"
+      },
+      "provenance": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "freshness": {
+              "enum": [
+                "fresh",
+                "stale",
+                "unknown"
+              ],
+              "type": "string"
+            },
+            "observed_at": {
+              "anyOf": [
+                {
+                  "format": "date-time",
+                  "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "retrieved_at": {
+              "format": "date-time",
+              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+              "type": "string"
+            },
+            "source_id": {
+              "minLength": 1,
+              "type": "string"
+            },
+            "source_url": {
+              "format": "uri",
+              "type": "string"
+            },
+            "source_version": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "source_id",
+            "observed_at",
+            "retrieved_at",
+            "freshness"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "request_id": {
+        "minLength": 1,
+        "type": "string"
+      },
+      "schema_version": {
+        "const": "1.0.0",
+        "type": "string"
+      },
+      "warnings": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "code": {
+              "type": "string"
+            },
+            "field": {
+              "type": "string"
+            },
+            "message": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "code",
+            "message"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "schema_version",
+      "kind",
+      "request_id",
+      "generated_at",
+      "context",
+      "data",
+      "warnings",
+      "next_actions"
+    ],
+    "type": "object"
+  }
+]

AddedNov 5, 2026

TDQS

A4/5.0

Behavior5/5

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

The description adds substantial behavior beyond the annotations: OAuth store:read consent, approved owned store requirement, explicit error handling for invalid/unavailable/foreign targets, and the note that read-only status does not imply publication eligibility. It also clarifies that prices exclude shipping and tax and that graded/raw copies remain distinct.

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

Conciseness3/5

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

The description front-loads the inspected fields, but it is long and includes redundant or irrelevant sentences such as 'Use supercatch_get_listing for this read in the connected account', output-envelope details already covered by the output schema, and an 'Expired cursors' note for a tool with no cursor parameter.

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?

Despite some verbosity, the definition covers the practical context an agent needs: required authorization, store eligibility, failure semantics, scope limits, and semantic caveats about pricing and copy condition. The output schema exists, so the description does not need to explain return values, and its extra return-envelope mention is redundant rather than harmful.

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 coverage is 100%, so the schema already defines listing_id as an opaque identifier. The description adds meaningful context by specifying it must be an owned listing ID and warning that catalog IDs alone never select a seller copy.

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

Purpose4/5

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

The description clearly states the tool inspects an owned listing and lists the exact fields returned (version, card identity, certification, prices, stock, image references). It distinguishes owned listing copies from catalog IDs and names supercatch_get_listing_images for image indexes, but does not differentiate from other read siblings like search_listings or get_product.

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

Usage Guidelines3/5

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

Usage is mostly implied by 'Inspect one owned listing ID' and the note that catalog IDs alone never select a seller copy. It names an alternative for image indexes but gives no explicit when-to-use/when-not guidance versus search_listings or list_store_listings.

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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