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

Beyond the read-only annotations, the description discloses rich behavioral context: showcase entries are references not copies, public readers see live referenced content while the source project stays closed and links are anonymized, managers also see rows with shown: false, and the response includes an add-permission signal. This is substantive behavioral information that annotations alone would not provide.

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?

The description is information-dense and front-loads the core concept, but it is written as a long, comma-spliced block with multiple embedded clauses. Most content earns its place, yet the structure could be clearer and easier to scan.

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 does a good job explaining the returned row fields, the page edition semantics, the shown:false manager view, and whether the caller may add entries. It lacks ordering or pagination details, but is otherwise complete for invoking and interpreting this read-only list tool.

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?

There is only one parameter, projectKey, and the schema already covers it at 100% with an example ('D5'). The description does not add syntax or format details for the parameter beyond the schema, so baseline 3 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 identifies the specific resource and scope: what a public project exposes from other projects via showcase, including issues and wiki pages shown by reference. It distinguishes the listing from add/remove workflows by noting that row ids are for remove_from_showcase and that the response indicates whether the caller may add, though it never states a direct verb like 'List'.

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 implied by the reference to remove_from_showcase and the 'whether you may add' permission signal, but there is no explicit when-to-use guidance, no named alternative for viewing the showcase, and no when-not-to-use condition. The agent can infer the tool's role but must connect it to siblings itself.

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