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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so the safety profile is covered elsewhere. The description adds domain meaning for 'bundle' but says nothing about result ordering, pagination, or scale of the listing, which would be genuinely additive.

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?

Two compact sentences, no redundancy, with the core action front-loaded and the optional filter trailing. Every phrase earns its place.

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-required-parameter list tool with full schema coverage and annotations covering safety, the definition is nearly sufficient. Only the omission of return shape/pagination context, absent since there is no output schema, keeps it short of full completeness.

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 description coverage is 100% and the single 'project' parameter is already documented in the schema. The description's 'filter to one project' merely restates that; it adds no syntax or format detail beyond the structured field.

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?

States a specific verb (List) and resource (bundles), and the parenthetical gloss 'ordered outlines of memories for a book or project' tells an agent what a bundle actually is. It is separable from bundle_get/bundle_create by the verb, though it never explicitly contrasts itself with those siblings.

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?

The only guidance is 'Optionally filter to one project,' which is really parameter behavior rather than when-to-use-this-vs-alternatives context. There is no statement of when to reach for bundle_list versus bundle_get or bundle_closure, so usage is implied rather than spelled out.

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