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tangivis

twikit-mcp

by tangivis

bookmark_tweet

Bookmark a tweet and optionally assign it to a bookmark folder for organized retrieval.

Instructions

Bookmark a tweet. Optionally add it to a bookmark folder.

Args: tweet_id: The tweet ID to bookmark. folder_id: Optional bookmark folder ID.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
tweet_idYes
folder_idNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are provided, so the description bears full responsibility. It states the tool creates a bookmark (mutation), but lacks details on permissions, idempotency (e.g., if already bookmarked), or side effects. Minimal behavioral context beyond the action itself.

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?

The description is concise with two sentences and a bulleted Args section. It is front-loaded with the main purpose. However, the Args section is redundant with the input schema, slightly reducing efficiency.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

Given the low complexity of the tool and the presence of an output schema (which reduces need to explain return values), the description covers the key action and parameters. However, it lacks behavioral context and error handling specifics, making it adequate but not thorough.

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?

The schema description coverage is 0%, and the description merely restates the parameter names with minimal elaboration: 'tweet_id: The tweet ID to bookmark' and 'folder_id: Optional bookmark folder ID.' This adds little value beyond the schema's type and title information.

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

Purpose5/5

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

The description clearly states the action (bookmark) and resource (tweet), and mentions an optional folder functionality. It effectively distinguishes from sibling tools like delete_bookmark or get_bookmarks.

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?

The description implies usage by stating the action, but does not explicitly provide when to use or when not to use, nor does it mention alternatives. The context of bookmarking is straightforward, but lacks guidance on prerequisites or conditions.

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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