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

With no annotations provided, the description carries the behavior burden. It does disclose the core behavior ('List') and scope ('own projects'), but it does not describe what the response contains, whether it is read-only beyond the verb's implication, or any ordering/filtering behavior. This is a minimal but not fully transparent description.

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 a single front-loaded sentence with no filler. Every word adds meaning: 'List' gives the operation, 'all' gives breadth, 'own' gives ownership scope. It is as concise as a definition can be.

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 zero-parameter, no-output-schema list operation, this description is nearly complete for invocation: the agent knows what action to take and the scope. However, it doesn't clarify what 'own' means precisely (e.g., current user only) or what data the response will contain, which would make it fully 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?

The tool has zero parameters and an empty input schema, so there are no parameter semantics for the description to clarify. Per baseline for zero parameters, this is appropriately handled; no additional parameter explanation is needed.

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 ('List'), a concrete resource ('projects'), and a clear scope ('all own'). This distinguishes it from sibling tools like get_project (single project), create_project (creation), and search_project (search behavior), giving an agent enough semantic clarity without opening other definitions.

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 rather than explicit: an agent can infer to use this when it needs the user's own projects, but the description provides no when-to-use or when-not-to-use guidance and does not name alternatives. It is adequate but leaves routing decisions to inference.

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