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

Annotations already declare readOnlyHint=true, destructiveHint=false, and openWorldHint=false, so safety is covered. The description adds non-obvious state semantics beyond that: sharing links reflect saved changes only, and draft content is not exposed. This is real behavioral context an agent could not get from the annotations, though it doesn't address any auth or rate considerations.

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 short sentences, front-loaded with the operation and followed by the key state caveat. No filler, no repetition of the tool name, and every clause carries 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 single-parameter read tool with full annotation coverage this is largely sufficient, and it names the returned concepts (sharing settings, access_version). Since there is no output schema, a little more detail on what the sharing settings payload contains, or what access_version signifies, would close the remaining gap.

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?

With a single parameter at 100% schema description coverage, the schema already explains that score_id comes from a result or the score list. The description adds nothing further about the identifier's format or source, so the baseline 3 for schema-covered parameters is appropriate.

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?

The description uses a specific verb and resource ('Read owned sharing settings and access_version'), so an agent knows this is a read of sharing configuration for a score it owns. It does not differentiate itself from nearby siblings such as manage_score_access, get_shared_score, or get_invitation_link, so the boundary remains for the agent to infer.

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?

There is no explicit when-to-use or when-not-to-use guidance and no alternative named, despite several siblings that also touch sharing (manage_score_access, publish_score_share, stop_score_share, check_link). The word 'owned' weakly implies scope, but nothing tells the agent when this is the right tool versus those alternatives.

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