SocialDataX X / Twitter MCP

x_get_user_info_by_user_id

Read-only

根据 X 用户 ID 获取公开用户信息；已有完整 user_id 时直接使用。

Input Schema

Name	Required	Description	Default
`user_id`	Yes	X 用户稳定数字 ID；用户已提供时原样使用；必须是数字字符串。可从用户搜索结果的非空 items[*].user_id、用户详情的非空 user_id，或帖子及评论结果的非空作者字段 author.user_id 原样复制；不要传用户名、用户主页链接、帖子链接或分享文案。

Output Schema

Name	Required	Description
`bio`	Yes	用户个人简介；没有或不可用时为空字符串。
`name`	Yes	用户展示名；不是 username；不可用时为空字符串。
`points`	Yes	本次成功调用的积分消耗与调用完成时的账户积分余额。
`user_id`	Yes	X 用户稳定数字 ID；不可用时为空字符串。
`location`	Yes	用户主页资料里填写的所在地；不是 IP 属地；不可用时为空字符串。
`username`	Yes	X 用户名，不带 @；不可用时为空字符串。
`avatar_url`	Yes	头像链接；不可用时为 null。
`is_private`	Yes	是否私密/受保护账号；不可用时为 null。
`post_count`	Yes	累计发帖数；不可用时为 null。
`is_verified`	Yes	是否显示 X 认证标识；不可用时为 null。
`profile_url`	Yes	用户主页链接；不可用时为 null。
`external_url`	Yes	用户主页填写的网站或外部链接；不是用户主页链接；标准用户主页请使用 profile_url；不可用时为 null。
`verified_type`	Yes	认证类型补充文本；不用于判断是否认证，应以 is_verified 为准；没有或不可用时为 null。
`follower_count`	Yes	粉丝数；不可用时为 null。
`following_count`	Yes	关注数；不可用时为 null。
`pinned_post_ids`	Yes	置顶帖子 ID 列表；可用于 x_get_post_detail_by_post_id；没有或不可用时为空数组。
`header_image_url`	Yes	用户主页头图链接；不可用时为 null。
`media_post_count`	Yes	累计媒体帖数；不可用时为 null。
`account_created_time`	Yes	账号创建时间，秒级 Unix 时间戳；不可用时为 null。
`affiliated_account_count`	Yes	该账号关联的账号数量；不可用时为 null。

Schema Changelog

Changes observed during successful MCP inspections.

Changed2 schema fields changedOct 8, 2026

changedInput schema / properties / user_id / description

Previous value: -"X 用户稳定数字 ID；用户已提供时原样使用，否则可从搜索、详情、评论或评论回复结果的非空 author.user_id、用户帖子列表结果的非空 author.user_id，或用户信息结果的非空 user_id 原样复制；必须是数字字符串；不要传用户名、用户主页链接、帖子链接或分享文案。"New value: +"X 用户稳定数字 ID；用户已提供时原样使用；必须是数字字符串。可从用户搜索结果的非空 items[*].user_id、用户详情的非空 user_id，或帖子及评论结果的非空作者字段 author.user_id 原样复制；不要传用户名、用户主页链接、帖子链接或分享文案。"

changedOutput schema / required

Previous value: -[
-  "user_id",
-  "username",
-  "name",
-  "avatar_url",
-  "profile_url",
-  "bio",
-  "external_url",
-  "is_verified",
-  "verified_type",
-  "is_private",
-  "affiliated_account_count",
-  "follower_count",
-  "following_count",
-  "post_count",
-  "media_post_count",
-  "location",
-  "header_image_url",
-  "pinned_post_ids",
-  "account_created_time",
-  "points"
-]New value: +[
+  "user_id",
+  "username",
+  "name",
+  "avatar_url",
+  "profile_url",
+  "bio",
+  "external_url",
+  "is_verified",
+  "verified_type",
+  "is_private",
+  "follower_count",
+  "following_count",
+  "post_count",
+  "media_post_count",
+  "location",
+  "header_image_url",
+  "pinned_post_ids",
+  "account_created_time",
+  "affiliated_account_count",
+  "points"
+]

First observedSep 1, 2026

TDQS

A3.8/5.0

Behavior3/5

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

Annotations already declare readOnlyHint=true and openWorldHint=true, so the safety and external-data profile is covered. The description contributes the additional fact that only 公开 (public) user information is returned, which is useful scoping, but says nothing about rate limits, auth, or data that may be withheld for protected accounts.

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 clauses separated by a semicolon, with the core action first and the usage condition second. Every word carries weight and there is no filler or repetition.

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 no explanation, and the single required parameter is fully documented in the schema. The description covers purpose and the ID-ready precondition; only the explicit contrast with the by-username and by-profile_url siblings is missing.

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 parameter description is exhaustive, covering how to copy user_id from search results, user detail, and post author fields, plus what not to pass. The description's "已有完整 user_id 时直接使用" only restates the schema and adds no new syntactic or format guidance.

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?

Names a specific verb (获取) and resource (公开用户信息) and scopes it to lookup by X user ID, which meaningfully separates it from the username/profile_url variants in the sibling list. It does not explicitly name those siblings, so an agent must infer the distinction from the identifier naming convention.

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

Usage Guidelines4/5

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

"已有完整 user_id 时直接使用" gives a clear positive trigger: use this tool when a complete numeric ID is already in hand, implying the username/URL lookups are for other cases. There is no explicit when-not statement or named alternative, so it stops short of full routing guidance.

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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