compare_projects

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

With no annotations, the description carries the full burden for behavioral disclosure. It only adds that data comes from the 'latest snapshot,' implying a non-live read operation, but it does not clarify output behavior, scoping, or whether only monitored projects are included.

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 contributes to stating the action and object.

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?

The tool is simple (one optional parameter) and has an output schema, so return-value details are not required. However, the description lacks context around when to use it, what 'Leads' means, and how the 'group' parameter scopes the comparison, leaving gaps for an agent deciding whether to invoke it.

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 100% and the single optional 'group' parameter is already described as 'Exact configured project-group id.' The tool description adds no additional meaning about how group affects the comparison, so the baseline of 3 is appropriate.

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 uses a specific verb ('Compare') and identifies clear resources ('factual project context and Leads observed in the latest snapshot'), which conveys the tool's core function and distinguishes it from search/retrieval siblings. It loses a point because 'Leads' is left unexplained and there is no explicit contrast with 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?

No guidance is provided about when to choose compare_projects over siblings like get_project_context, get_signal_timeline, or search_project_updates. There are no preferred scenarios, exclusions, or alternative tool references.

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