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

Annotations already cover readOnly/idempotent/non-destructive/closed-world, and the description adds genuinely new facts beyond them: content is synthetic, it does not admit anything or touch a workspace, and it is not metered. Delivery behavior (stable link vs inline zip, small bundles only) is also disclosed.

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 first paragraph is tight and front-loaded. The second paragraph, however, is about FinStat's document classification and routing to create_standard_book/create_standard_chart — useful context for the platform but not for invoking this tool, and it dilutes an otherwise clean two-parameter definition.

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?

With an output schema present, the definition still covers the catalog-vs-fetch mode split, both delivery modes, and the nature of the content, so an agent can call it correctly on the first try. The trailing classification/routing material is out of scope for this tool and adds noise rather than needed context.

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 enum description for delivery already states 'url (default when available)... base64: the zip inline, small bundles only.' The description largely restates this, adding only the coupling of example_key omission to catalog mode, which the schema also documents. Baseline 3 is correct.

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?

Opens with a specific verb and resource: 'Serves curated example bundles — each a small zip whose README is the runbook.' It also distinguishes itself from plausible siblings by defining the bundle as a runbook to follow with 'the ordinary public tools,' which separates it from demo/get_started/create_* 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?

Explicit operational guidance: no arguments returns the catalog, example_key fetches one, then unpack → create workspace → follow README. That is a clear when/how-to-use path. It stops short of stating when NOT to use it (e.g., vs. demo or get_started), so not a 5.

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