send_media_album

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

No annotations are supplied, so the description carries the full burden and largely does not meet it. It discloses the album grouping and the 2-to-10 limit, but not whether the caption applies to every item or only the first, what a null chat_id resolves to, what 'protect_content' prevents, whether sending is rate-limited, or what an out-of-range file count returns.

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?

The purpose is front-loaded and the sentence is short. However, the Traditional Chinese portion is a literal translation that adds no new information, effectively doubling the text length for a definition that could fit in one line.

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?

An output schema exists, so return values need not be explained. But for a five-parameter outgoing-message tool with zero annotation coverage, the definition omits the parameter meanings, the caption-to-item mapping, and the failure behavior for invalid albums — the essentials an agent needs to call it correctly.

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 description coverage is 0% across five parameters, and the description only clarifies that file_paths refers to local files (implied by 'local photos or videos'). The other four (caption, chat_id, protect_content, disable_notification) receive no explanation at all, leaving the description with a substantial gap to fill that it does not address.

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?

The description gives a specific verb and resource ('Send ... photos or videos as a single grouped album (carousel)') plus a hard cardinality constraint of 2 to 10, which implicitly separates it from the single-item siblings send_local_photo and send_local_video. It stops short of naming those siblings, so the differentiation is inferable rather than stated.

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?

There is no explicit when-to-use guidance and no routing to alternatives such as send_local_photo for a single item, despite eight closely related send_* siblings. The 2-to-10 bound hints at a minimum batch size but never says what to do below that threshold or which tool to pick instead.

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