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QuocTang

telegram-mcp-kit

by QuocTang

pin_message

Pin a message to the top of a chat. Specify the message ID, and optionally the chat ID and whether to send silently.

Instructions

Pin a message in a chat.

Args: message_id: ID of the message to pin chat_id: Chat ID or @channel_username (uses TELEGRAM_CHAT_ID if omitted) silent: Pin without notification (default False)

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
message_idYes
chat_idNo
silentNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations provided, and description lacks details on side effects (e.g., whether it replaces existing pins), permissions needed, or error conditions. Silent parameter is mentioned, but minimal behavioral insight.

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?

Concise: one-line purpose plus inline parameter explanations. No superfluous text, structure is clear.

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?

Output schema exists, so return values not needed. For a simple tool, description covers the main action, but lacks behavioral context like idempotency or permissions. Adequate but not thorough.

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 coverage is 0%, but description adds meaning: explains chat_id default and silent default. However, message_id is only described as 'ID of the message to pin', missing details like how to obtain it.

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?

Description clearly states the action (pin) and resource (a message in a chat), and distinguishes from siblings like unpin_message and delete_message.

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?

No explicit when-to-use or when-not-to-use guidance. Implied by purpose, but no mention of prerequisites or alternative tools like unpin_message for unpinning.

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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