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

Annotations already declare readOnlyHint, idempotentHint, destructiveHint=false and openWorldHint=false, so safety is covered by structured data. The description adds genuinely new behavioral context: the result payload shape (install info, stars, descriptions) and that results are paginated, which matters for iteration planning.

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 sentences with zero filler; the resource enumeration and payload summary come first, and the pagination note is a tight trailing fragment. Nothing needs to be cut.

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 an output schema present and annotations covering the safety profile, the description only needs to frame what is listed and how results are chunked, both of which it does. The remaining gap is the absence of any disambiguation from list_tools and search.

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 coverage is 100% and both optional parameters (page, limit) carry full descriptions with defaults and bounds. The description's single word 'Paginated' corroborates but adds no syntax or format detail beyond the schema, so the baseline 3 applies.

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 enumerates the resource types (published GitHub repos, Claude Code plugins, MCP servers, AI skills) plus what each entry carries (install info, stars, descriptions). It clearly distinguishes itself from content siblings like list_blog or list_glossary, but never distinguishes itself from the closest neighbor, list_tools.

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 when-to-use guidance, no prerequisites, and no routing to alternatives such as list_tools or search for a more targeted lookup. 'Paginated' weakly implies iteration behavior but says nothing about which tool to pick when an agent wants filtered or keyword-based results.

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