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

Annotations already declare readOnlyHint, idempotentHint, non-destructive and closed-world, so safety is covered. The description adds real value with the 'newest first' ordering and the hard 'max 50' ceiling, but says nothing about what happens beyond the cap, truncation behavior, or result shape.

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 tight sentence with the scope, ordering, and constraint front-loaded and no filler. Every clause carries load.

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 two-parameter read tool with rich annotations and defaults already in the schema, this is nearly sufficient. The remaining gap is that the return shape and the `project` identifier format are unspecified, though those are minor for a list operation.

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 0%, so the description must carry the parameters and it only partly does. `limit` is explained as a cap with a max of 50 (a fact absent from the schema), but `project` is only described as 'optionally for one project' with no indication whether it takes a name, slug, or ID, nor its default of empty string.

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 ('Lists the user's most recently saved memories') plus ordering ('newest first') and scope ('optionally for one project'). That scope implicitly separates it from the search/timeline siblings, but no sibling is named, so an agent must infer the routing.

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 word 'recently'; it never states when to pick this over memory_search, memory_timeline, or memory_get_project_context. There are no exclusions or prerequisites, so the agent has a rough sense of fit but no explicit decision rule.

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