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

Annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safety profile is fully covered by structured data. The description only adds the workspace scoping constraint and says nothing about result size, pagination, or what the 'default Genesis package contract' portion contains.

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 front-loaded sentence with no filler, but the trailing clause about the 'default Genesis package contract' reads as an awkward tack-on rather than an integrated statement of scope.

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 no output schema, the description is roughly adequate, but leaving the 'default Genesis package contract' unexplained without a return-value schema leaves a genuine gap about what the agent will receive.

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 schema has a single required workspaceId with 0% description coverage, and the description only implies that 'active workspace' selects it. It adds no format, pattern, or sourcing guidance beyond the bare '^[A-Za-z0-9_-]{1,128}$' in the schema, so it does not compensate for the coverage gap.

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 verb 'List' and the primary resource 'saved world experiences' are clear, but the second listed item, 'the default Genesis package contract', is an oddly juxtaposed noun phrase that muddies what the tool actually returns. It also does not distinguish itself from the close sibling list_experience_games (games vs. experiences) or from get_world_experience.

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 guidance on when to use this versus get_world_experience (single fetch), validate_world_experience, or list_experience_games. The 'active workspace' scope is the only contextual clue, and no prerequisites or exclusions are stated.

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