Manifold MCP

Search subreddits

reddit_search_subreddits

Read-onlyIdempotent

The communities that discuss a topic, counted from one page of search results.

Use when: "which subreddits talk about X", picking the communities to pass to reddit_get_new_posts, sizing where a conversation happens. Not for: a full directory of subreddits about a topic (this counts a sample of posts, so a quiet community can be missing). One community's rules and size, use reddit_get_subreddit. The posts themselves, use reddit_search_posts. Returns: List, most posts in the sample first. rows[]: name, url, posts_in_sample, example_post_url. Search carries no community size; reddit_get_subreddit gives weekly visitors. Cost: 1 credit. Cached 1 hour. Example: {"query": "cold email deliverability", "time_range": "year"}

Input Schema

TableJSON Schema

Name	Required	Description	Default
`query`	Yes
`dry_run`	No	Return only meta with the estimate. Costs nothing.
`time_range`	No	How far back to search. Default all.	all
`max_credits`	No	Refuse with BudgetExceeded if the estimate is higher.

Output Schema

TableJSON Schema

Name	Required	Description	Default
`meta`	Yes
`rows`	No
`error`	No
`hints`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

Changed15 schema fields changedOct 17, 2026

removedInput schema / $schema

Removed value: -"https://json-schema.org/draft/2020-12/schema"

removedInput schema / properties / max_credits / maximum
```
Removed value: -9007199254740991
```

removedInput schema / properties / provider

Removed value: -{
-  "description": "Provider id. Defaults to the server default for the tool.",
-  "type": "string"
-}

removedOutput schema / $schema

Removed value: -"https://json-schema.org/draft/2020-12/schema"

addedOutput schema / properties / error / additionalProperties
```
Added value: +{}
```

removedOutput schema / properties / error / oneOf

Removed value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "BudgetExceeded",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "max_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "max_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "billing_url": {
-        "type": "string"
-      },
-      "error": {
-        "const": "InsufficientCredits",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "upgrade_url": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "NoData",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InvalidTarget",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "target": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "target",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InvalidProvider",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "provider": {
-        "type": "string"
-      },
-      "valid_providers": {
-        "items": {
-          "type": "string"
-        },
-        "type": "array"
-      }
-    },
-    "required": [
-      "error",
-      "provider",
-      "valid_providers",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ProviderUnavailable",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "provider": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "provider",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ConcurrencyLimit",
-        "type": "string"
-      },
-      "limit": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "limit",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "cap": {
-        "type": "number"
-      },
-      "error": {
-        "const": "SpendCapReached",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "period": {
-        "enum": [
-          "day",
-          "month"
-        ],
-        "type": "string"
-      },
-      "resets_at": {
-        "type": "string"
-      },
-      "spent": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "period",
-      "cap",
-      "spent",
-      "est_credits",
-      "resets_at",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskFailed",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskPending",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "poll_after_s": {
-        "type": "number"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "poll_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "connect_url": {
-        "type": "string"
-      },
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "NotConnected",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "connect_url",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "EngineMisconfigured",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "message"
-    ],
-    "type": "object"
-  }
-]

addedOutput schema / properties / error / properties

Added value: +{
+  "error": {
+    "enum": [
+      "BudgetExceeded",
+      "InsufficientCredits",
+      "NoData",
+      "InvalidTarget",
+      "InvalidProvider",
+      "ProviderUnavailable",
+      "ConcurrencyLimit",
+      "SpendCapReached",
+      "TaskFailed",
+      "TaskPending",
+      "NotConnected",
+      "EngineMisconfigured"
+    ],
+    "type": "string"
+  },
+  "message": {
+    "type": "string"
+  }
+}

addedOutput schema / properties / error / required
```
Added value: +[
+  "error",
+  "message"
+]
```
addedOutput schema / properties / error / type
```
Added value: +"object"
```

removedOutput schema / properties / errors

Removed value: -{
-  "description": "Per-input failures of a batch call.",
-  "items": {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "oneOf": [
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "BudgetExceeded",
-                "type": "string"
-              },
-              "est_credits": {
-                "type": "number"
-              },
-              "max_credits": {
-                "type": "number"
-              },
-              "message": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "est_credits",
-              "max_credits",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "billing_url": {
-                "type": "string"
-              },
-              "error": {
-                "const": "InsufficientCredits",
-                "type": "string"
-              },
-              "est_credits": {
-                "type": "number"
-              },
-              "message": {
-                "type": "string"
-              },
-              "upgrade_url": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "est_credits",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "NoData",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "InvalidTarget",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              },
-              "target": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "target",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "InvalidProvider",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              },
-              "provider": {
-                "type": "string"
-              },
-              "valid_providers": {
-                "items": {
-                  "type": "string"
-                },
-                "type": "array"
-              }
-            },
-            "required": [
-              "error",
-              "provider",
-              "valid_providers",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "ProviderUnavailable",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              },
-              "provider": {
-                "type": "string"
-              },
-              "retry_after_s": {
-                "type": "number"
-              }
-            },
-            "required": [
-              "error",
-              "provider",
-              "retry_after_s",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "ConcurrencyLimit",
-                "type": "string"
-              },
-              "limit": {
-                "type": "number"
-              },
-              "message": {
-                "type": "string"
-              },
-              "retry_after_s": {
-                "type": "number"
-              }
-            },
-            "required": [
-              "error",
-              "limit",
-              "retry_after_s",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "cap": {
-                "type": "number"
-              },
-              "error": {
-                "const": "SpendCapReached",
-                "type": "string"
-              },
-              "est_credits": {
-                "type": "number"
-              },
-              "message": {
-                "type": "string"
-              },
-              "period": {
-                "enum": [
-                  "day",
-                  "month"
-                ],
-                "type": "string"
-              },
-              "resets_at": {
-                "type": "string"
-              },
-              "spent": {
-                "type": "number"
-              }
-            },
-            "required": [
-              "error",
-              "period",
-              "cap",
-              "spent",
-              "est_credits",
-              "resets_at",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "TaskFailed",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              },
-              "task_id": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "task_id",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "error": {
-                "const": "TaskPending",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              },
-              "poll_after_s": {
-                "type": "number"
-              },
-              "task_id": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "task_id",
-              "poll_after_s",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "connect_url": {
-                "type": "string"
-              },
-              "engine": {
-                "type": "string"
-              },
-              "error": {
-                "const": "NotConnected",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "engine",
-              "connect_url",
-              "message"
-            ],
-            "type": "object"
-          },
-          {
-            "additionalProperties": false,
-            "properties": {
-              "engine": {
-                "type": "string"
-              },
-              "error": {
-                "const": "EngineMisconfigured",
-                "type": "string"
-              },
-              "message": {
-                "type": "string"
-              }
-            },
-            "required": [
-              "error",
-              "engine",
-              "message"
-            ],
-            "type": "object"
-          }
-        ]
-      },
-      "input": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "input",
-      "error"
-    ],
-    "type": "object"
-  },
-  "type": "array"
-}

changedOutput schema / properties / meta / properties / rows_available / anyOf

Previous value: -[
-  {
-    "maximum": 9007199254740991,
-    "minimum": -9007199254740991,
-    "type": "integer"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "type": "integer"
+  },
+  {
+    "type": "null"
+  }
+]

removedOutput schema / properties / meta / properties / rows_returned / maximum
```
Removed value: -9007199254740991
```
removedOutput schema / properties / meta / properties / rows_returned / minimum
```
Removed value: --9007199254740991
```
removedOutput schema / properties / rows / items / properties / posts_in_sample / maximum
```
Removed value: -9007199254740991
```
removedOutput schema / properties / rows / items / properties / posts_in_sample / minimum
```
Removed value: --9007199254740991
```

Changed3 schema fields changedOct 17, 2026

addedOutput schema / properties / meta / properties / credits_notice

Added value: +{
+  "additionalProperties": false,
+  "description": "A free workspace is low on credits, at most once a day. Tell the user once.",
+  "properties": {
+    "message": {
+      "type": "string"
+    },
+    "resets_at": {
+      "type": [
+        "string",
+        "null"
+      ]
+    },
+    "upgrade_url": {
+      "type": "string"
+    }
+  },
+  "required": [
+    "upgrade_url",
+    "resets_at",
+    "message"
+  ],
+  "type": "object"
+}

addedOutput schema / properties / meta / properties / credits_remaining

Added value: +{
+  "description": "The workspace's credits left after this call. null when the call did not check the balance (free tools, cache hits, dry runs, tasks) or the balance has no limit.",
+  "type": [
+    "number",
+    "null"
+  ]
+}

changedOutput schema / properties / meta / required

Previous value: -[
-  "provider",
-  "credits_charged",
-  "est_credits",
-  "cached",
-  "data_as_of",
-  "rows_returned",
-  "rows_available",
-  "cursor",
-  "request_id"
-]New value: +[
+  "provider",
+  "credits_charged",
+  "est_credits",
+  "cached",
+  "data_as_of",
+  "rows_returned",
+  "rows_available",
+  "cursor",
+  "request_id",
+  "credits_remaining"
+]

Changed2 schema fields changedOct 16, 2026

removedOutput schema / properties / rows / items / properties / subscribers

Removed value: -{
-  "anyOf": [
-    {
-      "maximum": 9007199254740991,
-      "minimum": -9007199254740991,
-      "type": "integer"
-    },
-    {
-      "type": "null"
-    }
-  ]
-}

changedOutput schema / properties / rows / items / required

Previous value: -[
-  "name",
-  "url",
-  "subscribers",
-  "posts_in_sample",
-  "example_post_url"
-]New value: +[
+  "name",
+  "url",
+  "posts_in_sample",
+  "example_post_url"
+]

Changed2 schema fields changedOct 8, 2026

changedOutput schema / properties / error / oneOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "BudgetExceeded",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "max_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "max_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "billing_url": {
-        "type": "string"
-      },
-      "error": {
-        "const": "InsufficientCredits",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "upgrade_url": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "NoData",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InvalidTarget",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "target": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "target",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ProviderUnavailable",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "provider": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "provider",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ConcurrencyLimit",
-        "type": "string"
-      },
-      "limit": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "limit",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "cap": {
-        "type": "number"
-      },
-      "error": {
-        "const": "SpendCapReached",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "period": {
-        "enum": [
-          "day",
-          "month"
-        ],
-        "type": "string"
-      },
-      "resets_at": {
-        "type": "string"
-      },
-      "spent": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "period",
-      "cap",
-      "spent",
-      "est_credits",
-      "resets_at",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskFailed",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskPending",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "poll_after_s": {
-        "type": "number"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "poll_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "connect_url": {
-        "type": "string"
-      },
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "NotConnected",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "connect_url",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "EngineMisconfigured",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "BudgetExceeded",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "max_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "max_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "billing_url": {
+        "type": "string"
+      },
+      "error": {
+        "const": "InsufficientCredits",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "upgrade_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "NoData",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "InvalidTarget",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "target": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "target",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "InvalidProvider",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "provider": {
+        "type": "string"
+      },
+      "valid_providers": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "error",
+      "provider",
+      "valid_providers",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ProviderUnavailable",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "provider": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "provider",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ConcurrencyLimit",
+        "type": "string"
+      },
+      "limit": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "limit",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "cap": {
+        "type": "number"
+      },
+      "error": {
+        "const": "SpendCapReached",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "period": {
+        "enum": [
+          "day",
+          "month"
+        ],
+        "type": "string"
+      },
+      "resets_at": {
+        "type": "string"
+      },
+      "spent": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "period",
+      "cap",
+      "spent",
+      "est_credits",
+      "resets_at",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskFailed",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskPending",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "poll_after_s": {
+        "type": "number"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "poll_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "connect_url": {
+        "type": "string"
+      },
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "NotConnected",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "connect_url",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "EngineMisconfigured",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "message"
+    ],
+    "type": "object"
+  }
+]

changedOutput schema / properties / errors / items / properties / error / oneOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "BudgetExceeded",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "max_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "max_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "billing_url": {
-        "type": "string"
-      },
-      "error": {
-        "const": "InsufficientCredits",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "upgrade_url": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "NoData",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InvalidTarget",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "target": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "target",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ProviderUnavailable",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "provider": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "provider",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ConcurrencyLimit",
-        "type": "string"
-      },
-      "limit": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "limit",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "cap": {
-        "type": "number"
-      },
-      "error": {
-        "const": "SpendCapReached",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "period": {
-        "enum": [
-          "day",
-          "month"
-        ],
-        "type": "string"
-      },
-      "resets_at": {
-        "type": "string"
-      },
-      "spent": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "period",
-      "cap",
-      "spent",
-      "est_credits",
-      "resets_at",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskFailed",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskPending",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "poll_after_s": {
-        "type": "number"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "poll_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "connect_url": {
-        "type": "string"
-      },
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "NotConnected",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "connect_url",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "EngineMisconfigured",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "BudgetExceeded",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "max_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "max_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "billing_url": {
+        "type": "string"
+      },
+      "error": {
+        "const": "InsufficientCredits",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "upgrade_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "NoData",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "InvalidTarget",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "target": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "target",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "InvalidProvider",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "provider": {
+        "type": "string"
+      },
+      "valid_providers": {
+        "items": {
+          "type": "string"
+        },
+        "type": "array"
+      }
+    },
+    "required": [
+      "error",
+      "provider",
+      "valid_providers",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ProviderUnavailable",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "provider": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "provider",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ConcurrencyLimit",
+        "type": "string"
+      },
+      "limit": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "limit",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "cap": {
+        "type": "number"
+      },
+      "error": {
+        "const": "SpendCapReached",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "period": {
+        "enum": [
+          "day",
+          "month"
+        ],
+        "type": "string"
+      },
+      "resets_at": {
+        "type": "string"
+      },
+      "spent": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "period",
+      "cap",
+      "spent",
+      "est_credits",
+      "resets_at",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskFailed",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskPending",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "poll_after_s": {
+        "type": "number"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "poll_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "connect_url": {
+        "type": "string"
+      },
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "NotConnected",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "connect_url",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "EngineMisconfigured",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "message"
+    ],
+    "type": "object"
+  }
+]

Changed2 schema fields changedOct 6, 2026

changedOutput schema / properties / error / oneOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "BudgetExceeded",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "max_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "max_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InsufficientCredits",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "NoData",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InvalidTarget",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "target": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "target",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ProviderUnavailable",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "provider": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "provider",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ConcurrencyLimit",
-        "type": "string"
-      },
-      "limit": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "limit",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "cap": {
-        "type": "number"
-      },
-      "error": {
-        "const": "SpendCapReached",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "period": {
-        "enum": [
-          "day",
-          "month"
-        ],
-        "type": "string"
-      },
-      "resets_at": {
-        "type": "string"
-      },
-      "spent": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "period",
-      "cap",
-      "spent",
-      "est_credits",
-      "resets_at",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskFailed",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskPending",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "poll_after_s": {
-        "type": "number"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "poll_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "connect_url": {
-        "type": "string"
-      },
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "NotConnected",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "connect_url",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "EngineMisconfigured",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "BudgetExceeded",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "max_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "max_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "billing_url": {
+        "type": "string"
+      },
+      "error": {
+        "const": "InsufficientCredits",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "upgrade_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "NoData",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "InvalidTarget",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "target": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "target",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ProviderUnavailable",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "provider": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "provider",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ConcurrencyLimit",
+        "type": "string"
+      },
+      "limit": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "limit",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "cap": {
+        "type": "number"
+      },
+      "error": {
+        "const": "SpendCapReached",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "period": {
+        "enum": [
+          "day",
+          "month"
+        ],
+        "type": "string"
+      },
+      "resets_at": {
+        "type": "string"
+      },
+      "spent": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "period",
+      "cap",
+      "spent",
+      "est_credits",
+      "resets_at",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskFailed",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskPending",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "poll_after_s": {
+        "type": "number"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "poll_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "connect_url": {
+        "type": "string"
+      },
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "NotConnected",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "connect_url",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "EngineMisconfigured",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "message"
+    ],
+    "type": "object"
+  }
+]

changedOutput schema / properties / errors / items / properties / error / oneOf

Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "BudgetExceeded",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "max_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "max_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InsufficientCredits",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "est_credits",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "NoData",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "InvalidTarget",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "target": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "target",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ProviderUnavailable",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "provider": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "provider",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "ConcurrencyLimit",
-        "type": "string"
-      },
-      "limit": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "retry_after_s": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "limit",
-      "retry_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "cap": {
-        "type": "number"
-      },
-      "error": {
-        "const": "SpendCapReached",
-        "type": "string"
-      },
-      "est_credits": {
-        "type": "number"
-      },
-      "message": {
-        "type": "string"
-      },
-      "period": {
-        "enum": [
-          "day",
-          "month"
-        ],
-        "type": "string"
-      },
-      "resets_at": {
-        "type": "string"
-      },
-      "spent": {
-        "type": "number"
-      }
-    },
-    "required": [
-      "error",
-      "period",
-      "cap",
-      "spent",
-      "est_credits",
-      "resets_at",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskFailed",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "error": {
-        "const": "TaskPending",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      },
-      "poll_after_s": {
-        "type": "number"
-      },
-      "task_id": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "task_id",
-      "poll_after_s",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "connect_url": {
-        "type": "string"
-      },
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "NotConnected",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "connect_url",
-      "message"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "engine": {
-        "type": "string"
-      },
-      "error": {
-        "const": "EngineMisconfigured",
-        "type": "string"
-      },
-      "message": {
-        "type": "string"
-      }
-    },
-    "required": [
-      "error",
-      "engine",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "BudgetExceeded",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "max_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "max_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "billing_url": {
+        "type": "string"
+      },
+      "error": {
+        "const": "InsufficientCredits",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "upgrade_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "est_credits",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "NoData",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "InvalidTarget",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "target": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "target",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ProviderUnavailable",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "provider": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "provider",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "ConcurrencyLimit",
+        "type": "string"
+      },
+      "limit": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "retry_after_s": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "limit",
+      "retry_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "cap": {
+        "type": "number"
+      },
+      "error": {
+        "const": "SpendCapReached",
+        "type": "string"
+      },
+      "est_credits": {
+        "type": "number"
+      },
+      "message": {
+        "type": "string"
+      },
+      "period": {
+        "enum": [
+          "day",
+          "month"
+        ],
+        "type": "string"
+      },
+      "resets_at": {
+        "type": "string"
+      },
+      "spent": {
+        "type": "number"
+      }
+    },
+    "required": [
+      "error",
+      "period",
+      "cap",
+      "spent",
+      "est_credits",
+      "resets_at",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskFailed",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "error": {
+        "const": "TaskPending",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "poll_after_s": {
+        "type": "number"
+      },
+      "task_id": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "task_id",
+      "poll_after_s",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "connect_url": {
+        "type": "string"
+      },
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "NotConnected",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "connect_url",
+      "message"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "engine": {
+        "type": "string"
+      },
+      "error": {
+        "const": "EngineMisconfigured",
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "error",
+      "engine",
+      "message"
+    ],
+    "type": "object"
+  }
+]

Changed1 schema field changedOct 6, 2026

addedOutput schema / properties / meta / properties / providers_tried

Added value: +{
+  "description": "leads_get_email only: every source asked, in order.",
+  "items": {
+    "type": "string"
+  },
+  "type": "array"
+}

First observedOct 2, 2026

TDQS

A4.7/5.0

Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint, so the description's job is to add what annotations can't: the sampling behavior ('a quiet community can be missing'), the cost (1 credit), and caching (1 hour). Those are genuine additions beyond the structured fields. It doesn't discuss pagination or rate limits beyond the credit note, which keeps it a notch below a 5.

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?

Every line earns its place: a scope sentence, Use when / Not for blocks, a Returns block, cost and cache notes, and one example — all front-loaded with the most decision-relevant information first. No filler or repetition.

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?

With an output schema present, the description still summarizes the return shape (name, url, posts_in_sample, example_post_url) and critical caveats (sampling, cost, caching, absence of community size). Combined with annotations and schema, an agent has everything needed to call this tool and interpret results correctly.

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 75%, so the schema carries most parameter meaning. The description still adds value by supplying a worked example that pairs query with time_range and by clarifying via the Returns section that search carries no community size — implicitly telling the agent what the result fields do and don't include. dry_run and max_credits are left to their schema descriptions.

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

Purpose5/5

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

The description opens with a precise framing — 'The communities that discuss a topic, counted from one page of search results' — which states the verb (search), the resource (subreddits), and the sampling caveat in one shot. It clearly distinguishes itself from reddit_get_subreddit and reddit_search_posts, so an agent can tell them apart without opening any schema.

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?

Explicit when-to-use triggers ('which subreddits talk about X', picking communities for reddit_get_new_posts, sizing where a conversation happens) are paired with explicit not-for cases that name the correct alternative for each one: reddit_get_subreddit for a single community, reddit_search_posts for the posts themselves. Nothing is left to inference.

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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