lilbrain_overview

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

With no annotations provided, the description carries the full behavioral disclosure burden. It adds useful scope details—files, functions, classes, languages, subsystems, pipelines—and signals an entry-point summary role, but it does not describe output format, size, or whether it returns any computed insights. This is adequate but not deeply transparent.

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 two short sentences with no filler. 'Project overview' is front-loaded, the coverage list is compact, and 'Start here' adds immediate usability.

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 zero-parameter overview tool, the description adequately covers what the tool returns and how to begin using it. It does not describe the output structure, but no output schema is present and the tool's purpose is simple enough that this is a minor gap.

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 accepts zero parameters, so there are no parameter semantics to clarify. The empty schema needs no compensating explanation, and the baseline of 4 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 it provides a project overview covering files, functions, classes, languages, subsystems, and pipelines, which clearly identifies the resource and scope. It lacks an explicit verb like 'get' or 'list', but 'overview' and 'Start here' make its entry-point role clear and help distinguish it from the more specific sibling tools.

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?

'Start here' explicitly tells an agent this tool is the initial exploration entry point. It does not enumerate when to use alternatives, but for a zero-parameter overview tool, this is reasonable and actionable context.

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