send_document_file

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

With no annotations, the description carries full burden. It describes the action but does not disclose error handling, required permissions, rate limits, or side effects. Given the simple nature, minimal transparency is provided.

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

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

Description is concise with a clear header followed by parameter list in args format. No unnecessary text. Could be slightly more structured with bullet points, but still effective.

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

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

All 4 parameters explained, including default behavior for chat_id. Output schema exists but not visible; description covers input well. Lacks mention of return format or error behavior, but given simplicity, it's largely complete.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema coverage is 0%, so description must explain parameters. It does so effectively, specifying file_path as absolute path, chat_id defaulting to env var, caption as optional, and parse_mode values. Adds critical meaning beyond schema.

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

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

Description clearly states 'Send a local file as a document to a chat.' This is a specific verb-resource combination, and it distinguishes from sibling tools like send_document (likely remote) and send_photo_file (photo-specific).

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

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

Implies usage for sending local files as documents, but does not explicitly state when to use this tool vs. alternatives like send_document or send_photo_file. No exclusions or when-not guidance.

Agents often have multiple tools that could apply. Explicit usage guidance like "use X instead of Y when Z" prevents misuse.