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

Annotations already declare readOnly/idempotent/non-destructive, so the safety profile is covered. The description still adds real context beyond them: results are paginated, sorted by creation date, and the active and stock designs are flagged in the response — information an agent would not otherwise have.

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?

A single sentence with zero filler, front-loading the return type and then the ordering and flagging behavior. Nothing could be cut without losing information.

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 one-parameter read tool with a full output schema and rich annotations, the description covers what the agent needs to select and call it. Only minor gaps remain, such as page-size behavior and how pagination terminates.

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 Page parameter is already documented in the schema. The tool description adds nothing about pagination semantics (page size, termination), so the baseline 3 applies. Note the schema marks Page required while its own description says it may be omitted, an inconsistency the tool description does not resolve.

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 and resource ('Returns a paginated list of saved blog designs') plus distinguishing detail: ordering by creation date and flags for the active and stock designs. This lets an agent tell it apart from checkpoint/template list tools, though it never names a sibling explicitly.

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?

Usage is only implied by the name and the word 'list'. There is no statement of when to call this versus blog_design_checkpoint_list or get_blog, and no prerequisites or exclusions are given.

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