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loophole-tape

by io.github.gosadu
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Recent memecoin rug flags ($0.02)

recent_rugs
Read-onlyIdempotent

$0.02 per call. Use to see which pump.fun tokens fired rug or close flags in a window and how (creator_sold, bundle_dumped, curve_drained, pool_drained), newest first. Not a check on one mint. Stale feed: refused before payment. Fields: loopholetape://schema/recent_rugs.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
limitNomax items 1-200
window_sNolook-back seconds 60-21600

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
okNo
dataNo
metaNo
coverageNo

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "properties": {
+    "coverage": {
+      "type": "string"
+    },
+    "data": {
+      "type": [
+        "object",
+        "null"
+      ]
+    },
+    "meta": {
+      "type": "object"
+    },
+    "ok": {
+      "type": "boolean"
+    }
+  },
+  "type": "object"
+}
  2. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -{
-  "anyOf": [
-    {
-      "properties": {
-        "coverage": {
-          "enum": [
-            "full",
-            "thin"
-          ]
-        },
-        "data": {
-          "properties": {
-            "count": {
-              "type": "integer"
-            },
-            "items": {
-              "items": {
-                "type": "object"
-              },
-              "type": "array"
-            }
-          },
-          "required": [
-            "count",
-            "items"
-          ],
-          "type": "object"
-        },
-        "meta": {
-          "type": "object"
-        },
-        "ok": {
-          "const": true
-        }
-      },
-      "required": [
-        "ok",
-        "schema_version",
-        "generated_at",
-        "t",
-        "coverage",
-        "data",
-        "meta"
-      ],
-      "type": "object"
-    },
-    {
-      "properties": {
-        "accepts": {
-          "minItems": 1,
-          "type": "array"
-        },
-        "x402Version": {
-          "const": 2
-        }
-      },
-      "required": [
-        "x402Version",
-        "accepts"
-      ],
-      "type": "object"
-    },
-    {
-      "properties": {
-        "error": {
-          "type": "string"
-        },
-        "ok": {
-          "const": false
-        }
-      },
-      "required": [
-        "ok",
-        "error"
-      ],
-      "type": "object"
-    }
-  ],
-  "type": "object"
-}New value: +null
  3. Changed5 schema fields changed
    • removedInput schema / properties / limit / title
      Removed value: -"Limit"
    • removedInput schema / properties / window_s / title
      Removed value: -"Window S"
    • removedInput schema / title
      Removed value: -"recent_rugsArguments"
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "properties": {
-      "coverage": {
-        "enum": [
-          "full",
-          "thin"
-        ]
-      },
-      "data": {
-        "properties": {
-          "count": {
-            "type": "integer"
-          },
-          "items": {
-            "items": {
-              "type": "object"
-            },
-            "type": "array"
-          }
-        },
-        "required": [
-          "count",
-          "items"
-        ],
-        "type": "object"
-      },
-      "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": "RecentRugs",
-    "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": {
+          "count": {
+            "type": "integer"
+          },
+          "items": {
+            "items": {
+              "type": "object"
+            },
+            "type": "array"
+          }
+        },
+        "required": [
+          "count",
+          "items"
+        ],
+        "type": "object"
+      },
+      "meta": {
+        "type": "object"
+      },
+      "ok": {
+        "const": true
+      }
+    },
+    "required": [
+      "ok",
+      "schema_version",
+      "generated_at",
+      "t",
+      "coverage",
+      "data",
+      "meta"
+    ],
+    "type": "object"
+  },
+  {
+    "properties": {
+      "accepts": {
+        "minItems": 1,
+        "type": "array"
+      },
+      "x402Version": {
+        "const": 2
+      }
+    },
+    "required": [
+      "x402Version",
+      "accepts"
+    ],
+    "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."
  4. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "anyOf": [
+    {
+      "properties": {
+        "coverage": {
+          "enum": [
+            "full",
+            "thin"
+          ]
+        },
+        "data": {
+          "properties": {
+            "count": {
+              "type": "integer"
+            },
+            "items": {
+              "items": {
+                "type": "object"
+              },
+              "type": "array"
+            }
+          },
+          "required": [
+            "count",
+            "items"
+          ],
+          "type": "object"
+        },
+        "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": "RecentRugs",
+      "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"
+}
  5. Changed6 schema fields changed
    • addedInput schema / properties / limit / description
      Added value: +"max items 1-200"
    • addedInput schema / properties / limit / maximum
      Added value: +200
    • addedInput schema / properties / limit / minimum
      Added value: +1
    • addedInput schema / properties / window_s / description
      Added value: +"look-back seconds 60-21600"
    • addedInput schema / properties / window_s / maximum
      Added value: +21600
    • addedInput schema / properties / window_s / minimum
      Added value: +60
  6. First observed

TDQS

A4.1/5.0
Behavior4/5

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

Annotations already declare readOnly/idempotent/non-destructive and open-world, so the safety profile is covered. The description adds real value beyond that: per-call cost, the stale-feed refusal-before-payment behavior (an important billing/error trait), and the enumerated flag reasons.

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

Conciseness4/5

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

Dense and front-loaded: price, purpose, exclusion, behavior, schema pointer. Every sentence carries information, though the trailing 'loopholetape://schema/recent_rugs' pointer is cryptic without context and slightly interrupts the flow.

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

Completeness4/5

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

An output schema exists so return values needn't be explained, and the description still covers cost, failure mode, and flag taxonomy. For a two-parameter read tool this is nearly everything an agent needs, missing only pagination/ordering guarantees.

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

Parameters3/5

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

Schema description coverage is 100% and both parameters are documented there with ranges and defaults, so baseline 3 applies. The description only gestures at 'window' and 'newest first' ordering without adding syntax or format detail beyond the schema.

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 verb (see) plus resource (pump.fun rug/close flags) and scope (windowed, newest first), and enumerates the flag types so the agent knows what comes back. It explicitly distinguishes itself from single-mint checks, separating it from check_pumpfun_risk and token_check.

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

Usage Guidelines4/5

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

Gives a clear use case ('which tokens fired flags in a window') and an explicit exclusion ('Not a check on one mint'), which is the key routing decision in this sibling set. It stops short of naming the alternative tool to use for a single mint.

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

All loophole-tape toolsInspect
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