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Tipping Rules

by com.tippingrules
OverviewDiscussionsAdmin

Get tipping rules

get_tipping_rules
Read-onlyIdempotent

Get concise tipping guidance for a destination: status, summary, key service recommendations, last reviewed date, and the canonical page URL.

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "country": "<country>"
    },
    "name": "get_tipping_rules"
  }
}

Input Schema

NameRequiredDescriptionDefault
countryYesCountry slug (preferred) or country name, e.g. japan or Japan.

Output Schema

NameRequiredDescriptionDefault

No arguments

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed1 schema field changed
    • changedOutput schema / anyOf
      Previous value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "canonicalUrl": {
-        "description": "Canonical country page URL.",
-        "format": "uri",
-        "type": "string"
-      },
-      "country": {
-        "description": "Display name of the destination.",
-        "type": "string"
-      },
-      "lastReviewed": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "ISO date when guidance was last reviewed, when available."
-      },
-      "methodologyUrl": {
-        "description": "How Tipping Rules reviews and sources guidance.",
-        "format": "uri",
-        "type": "string"
-      },
-      "ok": {
-        "const": true,
-        "description": "True when country guidance was loaded.",
-        "type": "boolean"
-      },
-      "situations": {
-        "description": "Key service recommendations (up to 8).",
-        "items": {
-          "additionalProperties": false,
-          "properties": {
-            "expectation": {
-              "description": "Overall tipping expectation context for the destination.",
-              "type": "string"
-            },
-            "recommendation": {
-              "description": "Concise tipping recommendation for the service.",
-              "type": "string"
-            },
-            "service": {
-              "description": "Service category label (e.g. Restaurant, Taxi).",
-              "type": "string"
-            }
-          },
-          "required": [
-            "service",
-            "recommendation",
-            "expectation"
-          ],
-          "type": "object"
-        },
-        "type": "array"
-      },
-      "slug": {
-        "description": "Country slug.",
-        "type": "string"
-      },
-      "source": {
-        "const": "Tipping Rules",
-        "description": "Attribution for downstream citations.",
-        "type": "string"
-      },
-      "status": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "Overall tipping expectation label, when available."
-      },
-      "summary": {
-        "anyOf": [
-          {
-            "type": "string"
-          },
-          {
-            "type": "null"
-          }
-        ],
-        "description": "Short editorial summary of local tipping norms."
-      }
-    },
-    "required": [
-      "ok",
-      "country",
-      "slug",
-      "status",
-      "summary",
-      "situations",
-      "lastReviewed",
-      "canonicalUrl",
-      "methodologyUrl",
-      "source"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "code": {
-        "description": "Machine-readable error code (e.g. NOT_FOUND, VALIDATION, TIMEOUT).",
-        "type": "string"
-      },
-      "message": {
-        "description": "Short, agent-safe error message.",
-        "type": "string"
-      },
-      "ok": {
-        "const": false,
-        "description": "False when the tool could not complete successfully.",
-        "type": "boolean"
-      }
-    },
-    "required": [
-      "ok",
-      "code",
-      "message"
-    ],
-    "type": "object"
-  }
-]New value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "canonicalUrl": {
+        "description": "Canonical country page URL.",
+        "format": "uri",
+        "type": "string"
+      },
+      "country": {
+        "description": "Display name of the destination.",
+        "type": "string"
+      },
+      "lastReviewed": {
+        "description": "ISO date when guidance was last reviewed, when available.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "methodologyUrl": {
+        "description": "How Tipping Rules reviews and sources guidance.",
+        "format": "uri",
+        "type": "string"
+      },
+      "ok": {
+        "const": true,
+        "description": "True when country guidance was loaded.",
+        "type": "boolean"
+      },
+      "situations": {
+        "description": "Key service recommendations (up to 8).",
+        "items": {
+          "additionalProperties": false,
+          "properties": {
+            "expectation": {
+              "description": "Overall tipping expectation context for the destination.",
+              "type": "string"
+            },
+            "recommendation": {
+              "description": "Concise tipping recommendation for the service.",
+              "type": "string"
+            },
+            "service": {
+              "description": "Service category label (e.g. Restaurant, Taxi).",
+              "type": "string"
+            }
+          },
+          "required": [
+            "service",
+            "recommendation",
+            "expectation"
+          ],
+          "type": "object"
+        },
+        "type": "array"
+      },
+      "slug": {
+        "description": "Country slug.",
+        "type": "string"
+      },
+      "source": {
+        "const": "Tipping Rules",
+        "description": "Attribution for downstream citations.",
+        "type": "string"
+      },
+      "status": {
+        "description": "Overall tipping expectation label, when available.",
+        "type": [
+          "string",
+          "null"
+        ]
+      },
+      "summary": {
+        "description": "Short editorial summary of local tipping norms.",
+        "type": [
+          "string",
+          "null"
+        ]
+      }
+    },
+    "required": [
+      "ok",
+      "country",
+      "slug",
+      "status",
+      "summary",
+      "situations",
+      "lastReviewed",
+      "canonicalUrl",
+      "methodologyUrl",
+      "source"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "code": {
+        "description": "Machine-readable error code (e.g. NOT_FOUND, VALIDATION, TIMEOUT).",
+        "type": "string"
+      },
+      "message": {
+        "description": "Short, agent-safe error message.",
+        "type": "string"
+      },
+      "ok": {
+        "const": false,
+        "description": "False when the tool could not complete successfully.",
+        "type": "boolean"
+      }
+    },
+    "required": [
+      "ok",
+      "code",
+      "message"
+    ],
+    "type": "object"
+  }
+]
  2. Changed1 schema field changed
    • changedOutput schema / (root)
      Previous value: -nullNew value: +{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "anyOf": [
+    {
+      "additionalProperties": false,
+      "properties": {
+        "canonicalUrl": {
+          "description": "Canonical country page URL.",
+          "format": "uri",
+          "type": "string"
+        },
+        "country": {
+          "description": "Display name of the destination.",
+          "type": "string"
+        },
+        "lastReviewed": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "ISO date when guidance was last reviewed, when available."
+        },
+        "methodologyUrl": {
+          "description": "How Tipping Rules reviews and sources guidance.",
+          "format": "uri",
+          "type": "string"
+        },
+        "ok": {
+          "const": true,
+          "description": "True when country guidance was loaded.",
+          "type": "boolean"
+        },
+        "situations": {
+          "description": "Key service recommendations (up to 8).",
+          "items": {
+            "additionalProperties": false,
+            "properties": {
+              "expectation": {
+                "description": "Overall tipping expectation context for the destination.",
+                "type": "string"
+              },
+              "recommendation": {
+                "description": "Concise tipping recommendation for the service.",
+                "type": "string"
+              },
+              "service": {
+                "description": "Service category label (e.g. Restaurant, Taxi).",
+                "type": "string"
+              }
+            },
+            "required": [
+              "service",
+              "recommendation",
+              "expectation"
+            ],
+            "type": "object"
+          },
+          "type": "array"
+        },
+        "slug": {
+          "description": "Country slug.",
+          "type": "string"
+        },
+        "source": {
+          "const": "Tipping Rules",
+          "description": "Attribution for downstream citations.",
+          "type": "string"
+        },
+        "status": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Overall tipping expectation label, when available."
+        },
+        "summary": {
+          "anyOf": [
+            {
+              "type": "string"
+            },
+            {
+              "type": "null"
+            }
+          ],
+          "description": "Short editorial summary of local tipping norms."
+        }
+      },
+      "required": [
+        "ok",
+        "country",
+        "slug",
+        "status",
+        "summary",
+        "situations",
+        "lastReviewed",
+        "canonicalUrl",
+        "methodologyUrl",
+        "source"
+      ],
+      "type": "object"
+    },
+    {
+      "additionalProperties": false,
+      "properties": {
+        "code": {
+          "description": "Machine-readable error code (e.g. NOT_FOUND, VALIDATION, TIMEOUT).",
+          "type": "string"
+        },
+        "message": {
+          "description": "Short, agent-safe error message.",
+          "type": "string"
+        },
+        "ok": {
+          "const": false,
+          "description": "False when the tool could not complete successfully.",
+          "type": "boolean"
+        }
+      },
+      "required": [
+        "ok",
+        "code",
+        "message"
+      ],
+      "type": "object"
+    }
+  ],
+  "description": "Country tipping guidance or a structured error.",
+  "type": "object"
+}
  3. First observed

TDQS

B3.4/5.0
Behavior3/5

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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false, and openWorldHint=false, so the safety and idempotency profile is covered. The description restates the output contents (status, summary, recommendations, last reviewed date, URL) rather than adding behavioral context like caching or freshness semantics, which keeps this at a baseline 3.

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?

A single front-loaded sentence that leads with the verb and resource, then lists outputs. No wasted words or redundancy.

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?

With an output schema present and annotations covering the safety profile, the definition is nearly complete: the single parameter is well documented and the tool's scope is clear. The one gap is the absence of any routing signal relative to calculate_tip and search_countries.

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 the country parameter is fully documented in the schema (country slug or name, with examples). The description's word 'destination' adds no syntax or format detail beyond what the schema already provides, so baseline 3 applies.

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 (Get) and resource (tipping guidance for a destination) and enumerates the returned fields, so the agent knows exactly what this tool produces. However, it does not differentiate itself from the sibling calculate_tip, leaving the agent to infer that this returns guidance rather than computing an amount.

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?

The description gives no when-to-use guidance and never mentions calculate_tip or search_countries, so the agent cannot tell from the description alone when this tool is preferable to its siblings. Usage is only implied by the tool name.

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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