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Remove X handle

remove_x_handle
DestructiveIdempotent

Remove the verified X handle from the signed-in user’s public Synoptic profile. Does not modify the X account.

Input Schema

NameRequiredDescriptionDefault

No arguments

Output Schema

NameRequiredDescriptionDefault
userYes

Schema Changelog

Changes observed during successful MCP inspections.

  1. Changed2 schema fields changed
    • removedOutput schema / properties / user / properties / medalsCount
      Removed value: -{
      -  "type": "number"
      -}
    • changedOutput schema / properties / user / required
      Previous value: -[
      -  "id",
      -  "username",
      -  "fullName",
      -  "createdAt",
      -  "followingCount",
      -  "followersCount",
      -  "medalsCount",
      -  "isHighlighted"
      -]New value: +[
      +  "id",
      +  "username",
      +  "fullName",
      +  "createdAt",
      +  "followingCount",
      +  "followersCount",
      +  "isHighlighted"
      +]
  2. Changed2 schema fields changed
    • changedOutput schema / properties / user / properties / avatar / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "bucket": {
      -        "description": "S3 bucket holding the image",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "height": {
      -        "anyOf": [
      -          {
      -            "exclusiveMinimum": 0,
      -            "type": "integer"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "Height in pixels"
      -      },
      -      "key": {
      -        "description": "Storage key of the image",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "region": {
      -        "description": "AWS region of the bucket",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "type": {
      -        "description": "MIME type, such as image/png",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "width": {
      -        "anyOf": [
      -          {
      -            "exclusiveMinimum": 0,
      -            "type": "integer"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "Width in pixels"
      -      }
      -    },
      -    "required": [
      -      "bucket",
      -      "key",
      -      "region",
      -      "type"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "bucket": {
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "height": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "key": {
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "region": {
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "type": {
      +        "description": "MIME type, such as image/png",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "width": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      }
      +    },
      +    "required": [
      +      "bucket",
      +      "key",
      +      "region",
      +      "type"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • changedOutput schema / properties / user / properties / backgroundImage / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "bucket": {
      -        "description": "S3 bucket holding the image",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "height": {
      -        "anyOf": [
      -          {
      -            "exclusiveMinimum": 0,
      -            "type": "integer"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "Height in pixels"
      -      },
      -      "key": {
      -        "description": "Storage key of the image",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "region": {
      -        "description": "AWS region of the bucket",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "type": {
      -        "description": "MIME type, such as image/png",
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "width": {
      -        "anyOf": [
      -          {
      -            "exclusiveMinimum": 0,
      -            "type": "integer"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ],
      -        "description": "Width in pixels"
      -      }
      -    },
      -    "required": [
      -      "bucket",
      -      "key",
      -      "region",
      -      "type"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "bucket": {
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "height": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      },
      +      "key": {
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "region": {
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "type": {
      +        "description": "MIME type, such as image/png",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "width": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ]
      +      }
      +    },
      +    "required": [
      +      "bucket",
      +      "key",
      +      "region",
      +      "type"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
  3. Changed9 schema fields changed
    • changedOutput schema / properties / user / properties / avatar / anyOf
      Previous value: -[
      -  {
      -    "additionalProperties": false,
      -    "properties": {
      -      "bucket": {
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "height": {
      -        "anyOf": [
      -          {
      -            "exclusiveMinimum": 0,
      -            "type": "integer"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      },
      -      "key": {
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "region": {
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "type": {
      -        "minLength": 1,
      -        "type": "string"
      -      },
      -      "width": {
      -        "anyOf": [
      -          {
      -            "exclusiveMinimum": 0,
      -            "type": "integer"
      -          },
      -          {
      -            "type": "null"
      -          }
      -        ]
      -      }
      -    },
      -    "required": [
      -      "bucket",
      -      "key",
      -      "region",
      -      "type"
      -    ],
      -    "type": "object"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "bucket": {
      +        "description": "S3 bucket holding the image",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "height": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "Height in pixels"
      +      },
      +      "key": {
      +        "description": "Storage key of the image",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "region": {
      +        "description": "AWS region of the bucket",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "type": {
      +        "description": "MIME type, such as image/png",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "width": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "Width in pixels"
      +      }
      +    },
      +    "required": [
      +      "bucket",
      +      "key",
      +      "region",
      +      "type"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • addedOutput schema / properties / user / properties / avatar / description
      Added value: +"Profile image; null when none is set"
    • changedOutput schema / properties / user / properties / backgroundImage / anyOf
      Previous value: -[
      -  {
      -    "$ref": "#/properties/user/properties/avatar/anyOf/0"
      -  },
      -  {
      -    "type": "null"
      -  }
      -]New value: +[
      +  {
      +    "additionalProperties": false,
      +    "properties": {
      +      "bucket": {
      +        "description": "S3 bucket holding the image",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "height": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "Height in pixels"
      +      },
      +      "key": {
      +        "description": "Storage key of the image",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "region": {
      +        "description": "AWS region of the bucket",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "type": {
      +        "description": "MIME type, such as image/png",
      +        "minLength": 1,
      +        "type": "string"
      +      },
      +      "width": {
      +        "anyOf": [
      +          {
      +            "exclusiveMinimum": 0,
      +            "type": "integer"
      +          },
      +          {
      +            "type": "null"
      +          }
      +        ],
      +        "description": "Width in pixels"
      +      }
      +    },
      +    "required": [
      +      "bucket",
      +      "key",
      +      "region",
      +      "type"
      +    ],
      +    "type": "object"
      +  },
      +  {
      +    "type": "null"
      +  }
      +]
    • addedOutput schema / properties / user / properties / backgroundImage / description
      Added value: +"Profile background image; null when none is set"
    • addedOutput schema / properties / user / properties / followersCount / description
      Added value: +"Users following this user"
    • addedOutput schema / properties / user / properties / followingCount / description
      Added value: +"Users this user follows; excludes streams"
    • addedOutput schema / properties / user / properties / id / description
      Added value: +"Synoptic user ID for follow_user, is_following_user or get_user_by_id"
    • addedOutput schema / properties / user / properties / isHighlighted / description
      Added value: +"Featured by Synoptic; listed by get_highlighted_authors"
    • addedOutput schema / properties / user / properties / xComHandle / description
      Added value: +"Verified X handle linked to this profile, without @"
  4. First observed

TDQS

A3.9/5.0
Behavior4/5

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

Annotations already declare destructiveHint=true, idempotentHint=true, and openWorldHint=true. The description adds genuinely useful context beyond them: the deletion is scoped to the Synoptic profile and explicitly does NOT touch the X account, which tells the agent what is and isn't destroyed. It still omits auth/verification requirements, keeping it 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?

Two short sentences, action and scope front-loaded, with the disambiguating 'Does not modify the X account' clause immediately after the core statement. 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?

An output schema exists, so return values need not be described, and there are no parameters to document. The description covers purpose, target object, and scope boundary, but leaves open the error/precondition case (what happens if no verified handle exists) and any auth requirement.

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?

The tool takes zero parameters, so per the rubric the baseline is 4. There are no arguments whose semantics could be clarified further.

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+resource: removing the verified X handle from the signed-in user's Synoptic profile. That is unambiguous on its own, but it does not differentiate against a plausible sibling like update_profile, which could also manipulate the stored handle, so it stops short of a 5.

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?

Usage is implied by the tool name and the phrase 'from the signed-in user's public Synoptic profile', so the context of when to call it is inferable. There is no explicit statement of preconditions (e.g., a handle must already be linked) or an alternative tool to use instead, so guidance is only implied.

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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