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

Annotations already declare readOnlyHint, idempotentHint, and openWorldHint=false, so the safety profile is covered. The description adds useful provenance context by noting that assistant-saved notes are 'marked as relayed' and that each item carries an id, which matters for downstream calls. The trailing 'Read-only' is redundant with annotations but not harmful.

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?

Three sentences, front-loaded with the resource and its contents, then routing guidance. Dense but each clause carries information; the final 'Read-only' sentence is the only wasted fragment since annotations already state it.

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 no output schema, the description compensates by describing what is returned (memory categories plus ids) and how relayed notes are flagged. For a zero-parameter read tool with full annotations, nothing an agent needs is missing.

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 tool takes zero parameters, so there is nothing for the description to disambiguate; baseline 4 applies. The description correctly implies no filtering arguments are needed.

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 (what Morris remembers about the player), then enumerates the content categories: goals, preferences, injuries, kit, practice focus, and relayed notes. This is clearly distinguishable from siblings like get_my_golf_data or get_other_apps.

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?

Gives explicit when-to-use guidance ('before personal advice', 'to find the memory_id for forget_memory') and names three alternatives with the conditions that select them: save_memory for adding, get_my_golf_data for profile/official golf, get_other_apps for rounds from other apps.

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