loophole-tape

Sample risk card (free)

sample_mint

Read-onlyIdempotent

Free. One full risk card (the exact paid mint_risk_card shape) for a mint aged >= 300 s with >= 3 buys, delayed. Use it to see every field before paying; the server picks the mint, so it is not a check on yours. No arguments.

Input Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Output Schema

TableJSON Schema

Name	Required	Description	Default
`ok`	No
`data`	No
`meta`	No
`coverage`	No

Schema Changelog

Changes observed during successful MCP inspections.

Changed1 schema field changedOct 2, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "properties": {
+    "coverage": {
+      "type": "string"
+    },
+    "data": {
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "meta": {
+      "type": "object"
+    },
+    "ok": {
+      "type": "boolean"
+    }
+  },
+  "type": "object"
+}

Changed1 schema field changedOct 1, 2026

changedOutput schema / (root)

Previous value: -{
-  "anyOf": [
-    {
-      "properties": {
-        "coverage": {
-          "enum": [
-            "full",
-            "thin"
-          ]
-        },
-        "data": {
-          "properties": {
-            "coverage": {
-              "enum": [
-                "full",
-                "thin"
-              ]
-            },
-            "mint": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "mint",
-            "coverage"
-          ],
-          "type": [
-            "object",
-            "null"
-          ]
-        },
-        "meta": {
-          "type": "object"
-        },
-        "ok": {
-          "const": true
-        }
-      },
-      "required": [
-        "ok",
-        "schema_version",
-        "generated_at",
-        "t",
-        "coverage",
-        "data",
-        "meta"
-      ],
-      "type": "object"
-    },
-    {
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "ok": {
-          "const": false
-        }
-      },
-      "required": [
-        "ok",
-        "error"
-      ],
-      "type": "object"
-    }
-  ],
-  "type": "object"
-}New value: +null

Changed3 schema fields changedSep 29, 2026

removedInput schema / title
```
Removed value: -"sample_mintArguments"
```

changedOutput schema / anyOf

Previous value: -[
-  {
-    "properties": {
-      "coverage": {
-        "enum": [
-          "full",
-          "thin"
-        ]
-      },
-      "data": {
-        "properties": {
-          "coverage": {
-            "enum": [
-              "full",
-              "thin"
-            ]
-          },
-          "mint": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "mint",
-          "coverage"
-        ],
-        "type": [
-          "object",
-          "null"
-        ]
-      },
-      "generated_at": {
-        "type": "string"
-      },
-      "meta": {
-        "properties": {
-          "feed_lag_s": {
-            "type": [
-              "number",
-              "null"
-            ]
-          },
-          "is_stale": {
-            "type": "boolean"
-          }
-        },
-        "type": "object"
-      },
-      "ok": {
-        "const": true
-      },
-      "schema_version": {
-        "type": "string"
-      },
-      "t": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "ok",
-      "schema_version",
-      "generated_at",
-      "t",
-      "coverage",
-      "data",
-      "meta"
-    ],
-    "title": "SampleMintCard",
-    "type": "object"
-  },
-  {
-    "description": "isError: the x402 v2 payment requirements. Pay one accepts entry and call again with _meta['x402/payment']. error says why when a payment was sent and rejected; a failed settlement adds x402/payment-response. Nothing is charged.",
-    "properties": {
-      "accepts": {
-        "items": {
-          "properties": {
-            "amount": {
-              "type": "string"
-            },
-            "asset": {
-              "type": "string"
-            },
-            "extra": {
-              "type": "object"
-            },
-            "maxTimeoutSeconds": {
-              "type": "integer"
-            },
-            "network": {
-              "type": "string"
-            },
-            "payTo": {
-              "type": "string"
-            },
-            "scheme": {
-              "type": "string"
-            }
-          },
-          "required": [
-            "scheme",
-            "network",
-            "amount",
-            "asset",
-            "payTo"
-          ],
-          "type": "object"
-        },
-        "minItems": 1,
-        "type": "array"
-      },
-      "error": {
-        "type": "string"
-      },
-      "extensions": {
-        "type": "object"
-      },
-      "resource": {
-        "properties": {
-          "description": {
-            "type": "string"
-          },
-          "mimeType": {
-            "type": "string"
-          },
-          "url": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "url"
-        ],
-        "type": "object"
-      },
-      "x402/payment-response": {
-        "properties": {
-          "errorReason": {
-            "type": "string"
-          },
-          "network": {
-            "type": "string"
-          },
-          "success": {
-            "type": "boolean"
-          },
-          "transaction": {
-            "type": "string"
-          }
-        },
-        "required": [
-          "success"
-        ],
-        "type": "object"
-      },
-      "x402Version": {
-        "const": 2
-      }
-    },
-    "required": [
-      "x402Version",
-      "resource",
-      "accepts"
-    ],
-    "title": "PaymentRequired",
-    "type": "object"
-  },
-  {
-    "description": "isError: a refusal answered without charging (invalid or uncovered arguments, stale feed, nothing new since the cursor, a payment that cannot be matched to this request). error is a stable code; live_examples name mints covered now.",
-    "properties": {
-      "address": {
-        "type": "string"
-      },
-      "avoid_skipped": {
-        "type": "integer"
-      },
-      "case_mangled_mints": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "charged": {
-        "type": [
-          "boolean",
-          "null"
-        ]
-      },
-      "curve": {
-        "type": "string"
-      },
-      "error": {
-        "type": "string"
-      },
-      "feed_lag_s": {
-        "type": [
-          "number",
-          "null"
-        ]
-      },
-      "free_check": {
-        "type": "string"
-      },
-      "got": {
-        "type": [
-          "string",
-          "integer"
-        ]
-      },
-      "hint": {
-        "type": "string"
-      },
-      "invalid": {
-        "type": "object"
-      },
-      "live_examples": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "max_feed_lag_s": {
-        "type": "number"
-      },
-      "max_mints": {
-        "type": "integer"
-      },
-      "max_table_lag_s": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "mint": {
-        "type": "string"
-      },
-      "missing": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "newest_cursor": {
-        "type": "string"
-      },
-      "ok": {
-        "const": false
-      },
-      "payment_status": {
-        "type": "string"
-      },
-      "scanned": {
-        "type": "integer"
-      },
-      "schema": {
-        "type": "object"
-      },
-      "since": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "table_lag_s": {
-        "type": [
-          "number",
-          "null"
-        ]
-      },
-      "tool": {
-        "type": "string"
-      },
-      "unavailable_mints": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      },
-      "unverified_event": {
-        "type": [
-          "object",
-          "null"
-        ]
-      },
-      "window_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "ok",
-      "error"
-    ],
-    "title": "Refusal",
-    "type": "object"
-  }
-]New value: +[
+  {
+    "properties": {
+      "coverage": {
+        "enum": [
+          "full",
+          "thin"
+        ]
+      },
+      "data": {
+        "properties": {
+          "coverage": {
+            "enum": [
+              "full",
+              "thin"
+            ]
+          },
+          "mint": {
+            "type": "string"
+          }
+        },
+        "required": [
+          "mint",
+          "coverage"
+        ],
+        "type": [
+          "object",
+          "null"
+        ]
+      },
+      "meta": {
+        "type": "object"
+      },
+      "ok": {
+        "const": true
+      }
+    },
+    "required": [
+      "ok",
+      "schema_version",
+      "generated_at",
+      "t",
+      "coverage",
+      "data",
+      "meta"
+    ],
+    "type": "object"
+  },
+  {
+    "properties": {
+      "error": {
+        "type": "string"
+      },
+      "ok": {
+        "const": false
+      }
+    },
+    "required": [
+      "ok",
+      "error"
+    ],
+    "type": "object"
+  }
+]

removedOutput schema / description

Removed value: -"One of three shapes. Success (isError false): the JSON envelope {ok, schema_version, generated_at, t, coverage, data, meta}. isError true: the x402 PaymentRequired {x402Version 2, resource, accepts[, error]} (pay and call again) or a refusal {ok: false, error, message, charged: false}; neither is charged."

Changed1 schema field changedSep 27, 2026

changedOutput schema / (root)

Previous value: -nullNew value: +{
+  "anyOf": [
+    {
+      "properties": {
+        "coverage": {
+          "enum": [
+            "full",
+            "thin"
+          ]
+        },
+        "data": {
+          "properties": {
+            "coverage": {
+              "enum": [
+                "full",
+                "thin"
+              ]
+            },
+            "mint": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "mint",
+            "coverage"
+          ],
+          "type": [
+            "object",
+            "null"
+          ]
+        },
+        "generated_at": {
+          "type": "string"
+        },
+        "meta": {
+          "properties": {
+            "feed_lag_s": {
+              "type": [
+                "number",
+                "null"
+              ]
+            },
+            "is_stale": {
+              "type": "boolean"
+            }
+          },
+          "type": "object"
+        },
+        "ok": {
+          "const": true
+        },
+        "schema_version": {
+          "type": "string"
+        },
+        "t": {
+          "type": "number"
+        }
+      },
+      "required": [
+        "ok",
+        "schema_version",
+        "generated_at",
+        "t",
+        "coverage",
+        "data",
+        "meta"
+      ],
+      "title": "SampleMintCard",
+      "type": "object"
+    },
+    {
+      "description": "isError: the x402 v2 payment requirements. Pay one accepts entry and call again with _meta['x402/payment']. error says why when a payment was sent and rejected; a failed settlement adds x402/payment-response. Nothing is charged.",
+      "properties": {
+        "accepts": {
+          "items": {
+            "properties": {
+              "amount": {
+                "type": "string"
+              },
+              "asset": {
+                "type": "string"
+              },
+              "extra": {
+                "type": "object"
+              },
+              "maxTimeoutSeconds": {
+                "type": "integer"
+              },
+              "network": {
+                "type": "string"
+              },
+              "payTo": {
+                "type": "string"
+              },
+              "scheme": {
+                "type": "string"
+              }
+            },
+            "required": [
+              "scheme",
+              "network",
+              "amount",
+              "asset",
+              "payTo"
+            ],
+            "type": "object"
+          },
+          "minItems": 1,
+          "type": "array"
+        },
+        "error": {
+          "type": "string"
+        },
+        "extensions": {
+          "type": "object"
+        },
+        "resource": {
+          "properties": {
+            "description": {
+              "type": "string"
+            },
+            "mimeType": {
+              "type": "string"
+            },
+            "url": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "url"
+          ],
+          "type": "object"
+        },
+        "x402/payment-response": {
+          "properties": {
+            "errorReason": {
+              "type": "string"
+            },
+            "network": {
+              "type": "string"
+            },
+            "success": {
+              "type": "boolean"
+            },
+            "transaction": {
+              "type": "string"
+            }
+          },
+          "required": [
+            "success"
+          ],
+          "type": "object"
+        },
+        "x402Version": {
+          "const": 2
+        }
+      },
+      "required": [
+        "x402Version",
+        "resource",
+        "accepts"
+      ],
+      "title": "PaymentRequired",
+      "type": "object"
+    },
+    {
+      "description": "isError: a refusal answered without charging (invalid or uncovered arguments, stale feed, nothing new since the cursor, a payment that cannot be matched to this request). error is a stable code; live_examples name mints covered now.",
+      "properties": {
+        "address": {
+          "type": "string"
+        },
+        "avoid_skipped": {
+          "type": "integer"
+        },
+        "case_mangled_mints": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "charged": {
+          "type": [
+            "boolean",
+            "null"
+          ]
+        },
+        "curve": {
+          "type": "string"
+        },
+        "error": {
+          "type": "string"
+        },
+        "feed_lag_s": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "free_check": {
+          "type": "string"
+        },
+        "got": {
+          "type": [
+            "string",
+            "integer"
+          ]
+        },
+        "hint": {
+          "type": "string"
+        },
+        "invalid": {
+          "type": "object"
+        },
+        "live_examples": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "max_feed_lag_s": {
+          "type": "number"
+        },
+        "max_mints": {
+          "type": "integer"
+        },
+        "max_table_lag_s": {
+          "type": "number"
+        },
+        "message": {
+          "type": "string"
+        },
+        "mint": {
+          "type": "string"
+        },
+        "missing": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "newest_cursor": {
+          "type": "string"
+        },
+        "ok": {
+          "const": false
+        },
+        "payment_status": {
+          "type": "string"
+        },
+        "scanned": {
+          "type": "integer"
+        },
+        "schema": {
+          "type": "object"
+        },
+        "since": {
+          "type": [
+            "string",
+            "null"
+          ]
+        },
+        "table_lag_s": {
+          "type": [
+            "number",
+            "null"
+          ]
+        },
+        "tool": {
+          "type": "string"
+        },
+        "unavailable_mints": {
+          "items": {
+            "type": "string"
+          },
+          "type": "array"
+        },
+        "unverified_event": {
+          "type": [
+            "object",
+            "null"
+          ]
+        },
+        "window_s": {
+          "type": "number"
+        }
+      },
+      "required": [
+        "ok",
+        "error"
+      ],
+      "title": "Refusal",
+      "type": "object"
+    }
+  ],
+  "description": "One of three shapes. Success (isError false): the JSON envelope {ok, schema_version, generated_at, t, coverage, data, meta}. isError true: the x402 PaymentRequired {x402Version 2, resource, accepts[, error]} (pay and call again) or a refusal {ok: false, error, message, charged: false}; neither is charged.",
+  "type": "object"
+}

First observedSep 6, 2026

TDQS

A4.7/5.0

Behavior4/5

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

Annotations already declare readOnly, idempotent, open-world, and non-destructive behavior. The description adds useful context beyond them: free cost, delayed result, server-side mint selection, and eligibility criteria. It does not discuss rate limits or repeat-call behavior, but otherwise gives strong behavioral expectations.

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?

Three short sentences, front-loaded with 'Free.' and then packing the sample shape, selection criteria, delay, and non-use into minimal text. Every sentence earns its place.

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?

An output schema exists, so return-field details need not be repeated. The description covers cost, selection method, delay, and the key limitation that it is not a check on a chosen mint; annotations cover safety. Complete for a zero-argument sample tool.

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?

The schema has zero parameters, so the baseline is 4. The description reinforces this with 'No arguments,' matching the empty schema; no further parameter meaning is needed.

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?

States a specific resource and action: a free sample risk card with the exact paid mint_risk_card shape. It includes eligibility criteria (mint aged >= 300 s, >= 3 buys) and explicitly says it is not a check on your mint, distinguishing it from the paid sibling without opening schemas.

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?

Explicitly says to use it to preview every field before paying, and gives the when-not condition: the server picks the mint, so it is not a check on yours. The paid mint_risk_card is named as the alternative shape, making the routing clear.

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

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Input Schema

Output Schema

Schema Changelog

TDQS

Glama MCP Gateway

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