短.在线

Inspect short link · 查询本站短链（短.在线）

resolve_short_url

Read-onlyIdempotent

查询本站短码或本站短链的已保存状态；仅 active 时返回目标地址。无需账户。不查询其他短链服务；查询结果不是安全检测结论。 Look up a 短.在线 code or short URL and return its saved state. The destination is returned only when active. No account required. Does not look up other shorteners. The result is not a security verdict.

Input Schema

TableJSON Schema

Name	Required	Description	Default
`url`	No	Full short URL (Unicode or punycode). Mutually exclusive with code.
`code`	No	Short code. Mutually exclusive with url.

Output Schema

TableJSON Schema

Name	Required	Description	Default
No arguments

Schema Changelog

Changes observed during successful MCP inspections.

Changed4 schema fields changedOct 5, 2026

removedOutput schema / additionalProperties
```
Removed value: -false
```

addedOutput schema / oneOf

Added value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "created_at": {
+        "type": "string"
+      },
+      "destination": {
+        "type": "string"
+      },
+      "id": {
+        "type": "string"
+      },
+      "ok": {
+        "const": true,
+        "type": "boolean"
+      },
+      "request_id": {
+        "type": "string"
+      },
+      "short_url": {
+        "type": "string"
+      },
+      "short_url_ascii": {
+        "type": "string"
+      },
+      "state": {
+        "const": "active",
+        "type": "string"
+      },
+      "status_url": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "ok",
+      "request_id",
+      "id",
+      "state",
+      "created_at",
+      "status_url",
+      "short_url",
+      "short_url_ascii",
+      "destination"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "code": {
+        "type": "string"
+      },
+      "created_at": {
+        "type": "string"
+      },
+      "expired_at": {
+        "type": "string"
+      },
+      "id": {
+        "type": "string"
+      },
+      "ok": {
+        "const": true,
+        "type": "boolean"
+      },
+      "request_id": {
+        "type": "string"
+      },
+      "state": {
+        "enum": [
+          "quarantined",
+          "disabled",
+          "blocked",
+          "expired"
+        ],
+        "type": "string"
+      },
+      "status_url": {
+        "type": "string"
+      },
+      "title": {
+        "type": "string"
+      },
+      "type": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "ok",
+      "request_id",
+      "id",
+      "state",
+      "created_at",
+      "status_url",
+      "type",
+      "title",
+      "code"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "code": {
+        "type": "string"
+      },
+      "error": {
+        "type": "string"
+      },
+      "message": {
+        "type": "string"
+      },
+      "ok": {
+        "const": false,
+        "type": "boolean"
+      },
+      "request_id": {
+        "type": "string"
+      },
+      "retryable": {
+        "type": "boolean"
+      },
+      "title": {
+        "type": "string"
+      },
+      "type": {
+        "type": "string"
+      }
+    },
+    "required": [
+      "ok",
+      "request_id",
+      "error",
+      "code",
+      "message",
+      "type",
+      "title",
+      "retryable"
+    ],
+    "type": "object"
+  }
+]

removedOutput schema / properties

Removed value: -{
-  "code": {
-    "type": "string"
-  },
-  "created_at": {
-    "type": "string"
-  },
-  "destination": {
-    "type": "string"
-  },
-  "error": {
-    "type": "string"
-  },
-  "id": {
-    "type": "string"
-  },
-  "message": {
-    "type": "string"
-  },
-  "ok": {
-    "type": "boolean"
-  },
-  "request_id": {
-    "type": "string"
-  },
-  "retryable": {
-    "type": "boolean"
-  },
-  "short_url": {
-    "type": "string"
-  },
-  "short_url_ascii": {
-    "type": "string"
-  },
-  "state": {
-    "type": "string"
-  },
-  "status_url": {
-    "type": "string"
-  },
-  "title": {
-    "type": "string"
-  },
-  "type": {
-    "type": "string"
-  }
-}

removedOutput schema / required

Removed value: -[
-  "ok",
-  "request_id"
-]

Changed3 schema fields changedOct 5, 2026

addedInput schema / additionalProperties
```
Added value: +{}
```

removedInput schema / oneOf

Removed value: -[
-  {
-    "additionalProperties": false,
-    "properties": {
-      "url": {
-        "description": "Full short URL (Unicode or punycode). Mutually exclusive with code.",
-        "maxLength": 2048,
-        "minLength": 1,
-        "type": "string"
-      }
-    },
-    "required": [
-      "url"
-    ],
-    "type": "object"
-  },
-  {
-    "additionalProperties": false,
-    "properties": {
-      "code": {
-        "description": "Short code. Mutually exclusive with url.",
-        "maxLength": 64,
-        "minLength": 1,
-        "type": "string"
-      }
-    },
-    "required": [
-      "code"
-    ],
-    "type": "object"
-  }
-]

addedInput schema / properties

Added value: +{
+  "code": {
+    "description": "Short code. Mutually exclusive with url.",
+    "maxLength": 64,
+    "minLength": 1,
+    "type": "string"
+  },
+  "url": {
+    "description": "Full short URL (Unicode or punycode). Mutually exclusive with code.",
+    "maxLength": 2048,
+    "minLength": 1,
+    "type": "string"
+  }
+}

Changed3 schema fields changedOct 2, 2026

changedInput schema / examples

Previous value: -[
-  {
-    "url": "https://example.com/example"
-  },
-  {
-    "code": "example"
-  }
-]New value: +[
+  {
+    "url": "https://xn--s7y.xn--3ds443g/example"
+  },
+  {
+    "code": "example"
+  }
+]

addedInput schema / oneOf

Added value: +[
+  {
+    "additionalProperties": false,
+    "properties": {
+      "url": {
+        "description": "Full short URL (Unicode or punycode). Mutually exclusive with code.",
+        "maxLength": 2048,
+        "minLength": 1,
+        "type": "string"
+      }
+    },
+    "required": [
+      "url"
+    ],
+    "type": "object"
+  },
+  {
+    "additionalProperties": false,
+    "properties": {
+      "code": {
+        "description": "Short code. Mutually exclusive with url.",
+        "maxLength": 64,
+        "minLength": 1,
+        "type": "string"
+      }
+    },
+    "required": [
+      "code"
+    ],
+    "type": "object"
+  }
+]

removedInput schema / properties

Removed value: -{
-  "code": {
-    "description": "Short code if URL not provided",
-    "maxLength": 64,
-    "minLength": 1,
-    "type": "string"
-  },
-  "url": {
-    "description": "Full short URL (Unicode or punycode)",
-    "maxLength": 2048,
-    "minLength": 1,
-    "type": "string"
-  }
-}

Changed1 schema field changedOct 1, 2026

addedInput schema / examples

Added value: +[
+  {
+    "url": "https://example.com/example"
+  },
+  {
+    "code": "example"
+  }
+]

First observedSep 19, 2026

TDQS

A3.7/5.0

Behavior4/5

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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint, so the safety profile is covered. The description still adds value beyond them: it discloses the conditional output rule (destination returned only when active) and an interpretation caveat (not a security verdict), both of which are behavior an agent could not infer from schema or annotations.

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

Conciseness3/5

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

Content is front-loaded and each sentence carries information, but the entire description is duplicated verbatim in Chinese and English, roughly doubling the token cost for an agent that needs only one pass. The structure is clean; the redundancy is the deduction.

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, return values need no explanation, and annotations cover the safety profile. The description closes the remaining gaps an agent needs: authentication (none), scope (this service only), the conditional nature of the destination field, and the caveat that results are not a security assessment.

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, including their mutual exclusivity. The description only restates 'code or short URL' with no syntax, normalization, or punycode handling details beyond the schema, so the baseline of 3 is appropriate.

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?

The description gives a specific verb and resource: look up a 短.在线 code or short URL and return its saved state, with the key qualifier that the destination is returned only when the link is active. It scopes itself to this service's own codes, which helps separate it from generic URL tools, but it never explicitly contrasts with close siblings such as get_link or shorten_url.

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

Usage Guidelines3/5

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

It supplies real constraints — no account required, does not look up other shorteners, and the result is not a security verdict — which implicitly define when the tool is appropriate. However, it never states a positive when-to-use condition relative to alternatives like get_link, so selection still requires inference from sibling names.

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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