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Read a market's news headlines

problee_get_market_news
Read-onlyIdempotent

Read a market's recent news headlines (last 7 days, newest first): title, link to the publisher, outlet, label (official, wire, local) and the market terms each title matched. Titles and links only. Research, not advice.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
addressYesChecksummed or lowercase 20-byte EVM address (0x + 40 hex).
chainIdNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / $defs / MarketNews / properties / news / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "country": {
-        "type": [
-          "string",
-          "null"
-        ]
-      },
-      "counts": {
-        "additionalProperties": false,
-        "properties": {
-          "all": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "international": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "last24h": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "local": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          },
-          "official": {
-            "maximum": 9007199254740991,
-            "minimum": 0,
-            "type": "integer"
-          }
-        },
-        "required": [
-          "all",
-          "official",
-          "local",
-          "international",
-          "last24h"
-        ],
-        "type": "object"
-      },
-      "fetchedAt": {
-        "format": "date-time",
-        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-        "type": "string"
-      },
-      "items": {
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "host": {
-              "type": "string"
-            },
-            "label": {
-              "anyOf": [
-                {
-                  "enum": [
-                    "official",
-                    "wire",
-                    "local"
-                  ],
-                  "type": "string"
-                },
-                {
-                  "type": "null"
-                }
-              ]
-            },
-            "language": {
-              "type": [
-                "string",
-                "null"
-              ]
-            },
-            "matched": {
-              "items": {
-                "type": "string"
-              },
-              "maxItems": 3,
-              "minItems": 1,
-              "type": "array"
-            },
-            "moreOutlets": {
-              "maximum": 9007199254740991,
-              "minimum": 0,
-              "type": "integer"
-            },
-            "outlet": {
-              "type": "string"
-            },
-            "publishedAt": {
-              "format": "date-time",
-              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
-              "type": "string"
-            },
-            "scope": {
-              "enum": [
-                "official",
-                "local",
-                "international"
-              ],
-              "type": "string"
-            },
-            "title": {
-              "type": "string"
-            },
-            "url": {
-              "format": "uri",
-              "maxLength": 2048,
-              "type": "string"
-            }
-          },
-          "required": [
-            "url",
-            "title",
-            "outlet",
-            "host",
-            "publishedAt",
-            "language",
-            "label",
-            "scope",
-            "moreOutlets",
-            "matched"
-          ],
-          "type": "object"
-        },
-        "maxItems": 40,
-        "type": "array"
-      },
-      "language": {
-        "type": [
-          "string",
-          "null"
-        ]
-      }
-    },
-    "required": [
-      "fetchedAt",
-      "country",
-      "language",
-      "counts",
-      "items"
-    ],
-    "type": "object"
-  },
-  {
-    "type": "null"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "country": {
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "counts": {
+        "additionalProperties": false,
+        "properties": {
+          "all": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "international": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "last24h": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "local": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          },
+          "official": {
+            "maximum": 9007199254740991,
+            "minimum": 0,
+            "type": "integer"
+          }
+        },
+        "required": [
+          "all",
+          "official",
+          "local",
+          "international",
+          "last24h"
+        ],
+        "type": "object"
+      },
+      "fetchedAt": {
+        "format": "date-time",
+        "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+        "type": "string"
+      },
+      "items": {
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "host": {
+              "type": "string"
+            },
+            "label": {
+              "anyOf": [
+                {
+                  "enum": [
+                    "official",
+                    "wire",
+                    "local"
+                  ],
+                  "type": "string"
+                },
+                {
+                  "type": "null"
+                }
+              ]
+            },
+            "language": {
+              "type": [
+                "string",
+                "null"
+              ]
+            },
+            "matched": {
+              "items": {
+                "type": "string"
+              },
+              "maxItems": 3,
+              "minItems": 1,
+              "type": "array"
+            },
+            "moreOutlets": {
+              "maximum": 9007199254740991,
+              "minimum": 0,
+              "type": "integer"
+            },
+            "outlet": {
+              "type": "string"
+            },
+            "publishedAt": {
+              "format": "date-time",
+              "pattern": "^(?:(?:\\d\\d[2468][048]|\\d\\d[13579][26]|\\d\\d0[48]|[02468][048]00|[13579][26]00)-02-29|\\d{4}-(?:(?:0[13578]|1[02])-(?:0[1-9]|[12]\\d|3[01])|(?:0[469]|11)-(?:0[1-9]|[12]\\d|30)|(?:02)-(?:0[1-9]|1\\d|2[0-8])))T(?:(?:[01]\\d|2[0-3]):[0-5]\\d:[0-5]\\d(?:\\.\\d+)?(?:Z|([+-](?:[01]\\d|2[0-3]):[0-5]\\d)))$",
+              "type": "string"
+            },
+            "scope": {
+              "enum": [
+                "official",
+                "local",
+                "international"
+              ],
+              "type": "string"
+            },
+            "title": {
+              "type": "string"
+            },
+            "url": {
+              "format": "uri",
+              "maxLength": 2048,
+              "type": "string"
+            }
+          },
+          "required": [
+            "url",
+            "title",
+            "outlet",
+            "host",
+            "publishedAt",
+            "language",
+            "label",
+            "scope",
+            "moreOutlets",
+            "matched"
+          ],
+          "type": "object"
+        },
+        "maxItems": 100,
+        "type": "array"
+      },
+      "language": {
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "fetchedAt",
+      "country",
+      "language",
+      "counts",
+      "items"
+    ],
+    "type": "object"
+  },
+  {
+    "type": "null"
+  }
+]
  2. Added

TDQS

B3.3/5.0
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 behavior, so the safety profile is covered. The description adds genuinely useful context beyond that: the 7-day lookback, newest-first ordering, and the hard limitation that only titles and links are returned (no article body).

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?

A single dense sentence, front-loaded with the resource and window before the returned-field list. The enumeration of fields is slightly verbose, but every element conveys something the caller needs, and there is no filler.

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?

For a read-only lookup with full annotations and an output schema, the description is nearly complete: it covers scope, window, ordering, and the titles-and-links-only constraint. The gap is the undocumented chainId parameter and the absence of any sibling routing hint.

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

Parameters2/5

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

Schema coverage is only 50%: address is documented in the schema but chainId has no description anywhere. The description says nothing about either parameter, so it fails to compensate for the undocumented chainId, which an agent cannot confidently supply.

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

Purpose4/5

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

States a specific verb and resource: reading a market's recent news headlines, with the time window (last 7 days) and ordering (newest first). It is immediately distinguishable from most siblings, though it never names the closest alternative, problee_get_market_research, which an agent may confuse it with.

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

Usage Guidelines2/5

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

There is no explicit when-to-use guidance, no prerequisites, and no named alternative. 'Research, not advice' is a scope disclaimer rather than routing guidance, so the agent must infer that this is the news-lookup tool versus get_market_research or get_market.

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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