get_profile_photos

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

No annotations exist, so the description carries full burden. It describes a list operation but does not explicitly state it is read-only, safe, or disclose any other behavioral traits like rate limits or authentication requirements.

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?

Single sentence is highly concise and front-loaded with purpose and key output information. No wasted words.

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?

Tool is simple with 2 parameters and an output schema. Description provides basic context but lacks details like ordering (e.g., newest first), pagination, or limit's optional nature. Adequate but with gaps.

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 compensate. It partially explains 'chat' (user/group/channel) but omits 'limit' parameter semantics, default value, or behavior. Return fields (photo_id and date) are mentioned, but not parameter details.

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 clearly states the tool lists historical profile photos of a user/group/channel and returns photo_id and date. It is specific and distinguishes from siblings like download_profile_photo and set_profile_photo.

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?

Usage is implied (to retrieve historical profile photos) but no explicit guidance on when to use this vs. alternatives like download_profile_photo or get_chat_info is provided.

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