get-employee-photo

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

With no annotations provided, the description carries the full burden. It does disclose the key behavioral fact that the tool returns a URL rather than binary image data, which is genuinely useful. However, it says nothing about behavior when no photo exists, URL characteristics (public vs. signed), or authentication needs — acceptable for a simple read tool, but minimal.

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?

A single front-loaded sentence with zero wasted words: verb, resource, output type, and the key sizing capability all in order. Every word earns its place.

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 read tool with full schema coverage, the definition is nearly sufficient: the schema documents inputs, and the description states the return value (URL) since no output schema exists. The only gap is guidance on failure or fallback behavior, which is minor for a getter of this simplicity.

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 100%, so the schema already fully documents both parameters, including the allowed size values and default. The description's phrase 'in a specific size' reinforces the size parameter but adds no meaning beyond what the schema enumerates, so the baseline of 3 applies.

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 states a specific verb ('Get'), resource ('employee photo'), and output type ('URL'), so an agent knows exactly what is returned. The word 'photo' cleanly separates this from sibling tools like get-employee-files, get-employee-goals, and get-employee-directory, though it never names them explicitly.

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 guidance on when to use this tool versus alternatives, no exclusions, and no context about prerequisites (e.g., that an employee photo must exist). Among many employee-related sibling tools, the agent is left to infer usage entirely from the name and one-line description.

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