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

Beyond the read-only and idempotent annotations, the description explains what the returned example contains: realistic collection tables, calculations, exclusions, refers, and an embedded tests[] suite. It also clarifies the template-oriented behavior and the catalog behavior when no type is specified.

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 three tightly written sentences with no wasted wording. It front-loads the core purpose, then adds useful context about contents and usage, then closes with the catalog behavior.

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 low-complexity, read-only tool with two fully documented parameters and no output schema, the description gives an agent enough information about what is returned and how to use it. It covers the starter-project contents and the catalog option without unnecessary detail.

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 schema already documents both parameters at 100% coverage, including the list/type behavior and the enum values. The description reinforces the no-arguments/list:true catalog behavior but adds little semantic detail beyond the schema, 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 states a specific verb and resource: fetch a worked-example Ptally project for a common line of business. It clearly explains that the result is a starter/template project rather than an existing production project, though it does not explicitly distinguish itself from sibling tools such as get_project or get_projects.

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?

It gives clear usage context: use the example as a template, copy and adapt it rather than authoring from scratch. It also explains how to get the catalog, but it does not name alternatives or explicitly state when not to use this tool versus sibling project-fetching tools.

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