list_photos

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

With no annotations provided, the description carries the behavioral disclosure burden. It usefully reveals that the tool returns URLs rather than image content and that those URLs are compatible with download_file. It does not mention pagination behavior, ordering, authorization requirements, or error conditions, though an output schema exists.

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 description is appropriately short and front-loaded, with the core purpose first, followed by the download_file integration note and a minimal Args list. The Args lines largely duplicate the schema but are brief and do not bloat the description.

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?

For a simple two-parameter list tool with an output schema, the description covers the basic purpose, parameter names, and downstream usage. It is not fully complete because it omits any guidance on when not to use it, how pagination behaves beyond the default, or whether authentication/school context is required.

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%, so the description must compensate, but the Args section merely restates what the schema already implies: school_id is a school ID and page is a page number. It adds no meaningful context such as how to obtain school_id, page bounds, or ordering semantics.

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 opens with a specific verb and resource: 'List photos posted for a school.' This clearly identifies what the tool does and distinguishes it from download_file by noting that it returns URLs. It does not explicitly contrast with the closely related list_files sibling, so it stops short of full differentiation.

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?

The use case is clear: list photos for a school. The phrase 'Returns photo URLs that can be used with download_file' gives concrete downstream guidance on how to use the returned data. However, it does not state when to prefer this over alternatives like list_files, so exclusions are absent.

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