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. The description adds the useful detail that the result is a 'full markdown playbook', but does not go beyond that to mention behavior such as error conditions, matching semantics, or fallbacks. With annotations carrying the core behavioral burden, this is a solid but not exceptional score.

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 one sentence with zero filler, and the purpose is front-loaded. The examples are useful and directly support parameter understanding without bloating the text.

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-only tool with an output schema and complete annotation safety hints, the description adequately covers what the agent needs to call it correctly. It could optionally enumerate all available skill names, but the examples are sufficient for normal use and close siblings are already distinct.

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 description coverage is 100%, and the schema already explains the 'skillName' parameter with examples. The description repeats examples but does not add meaning beyond the schema. Per the baseline rule for high schema coverage, a 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 uses a specific verb ('Retrieve') and names the resource ('full markdown skill playbook'), with concrete examples of valid skill names. It clearly distinguishes itself from sibling tools like glintbase_audit or glintbase_get_score, which have different purposes.

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?

The description provides clear context: this is the tool to retrieve a skill playbook for agent readiness. While it does not explicitly name sibling alternatives or when-not-to-use conditions, the examples and verb make the intended usage obvious and distinct from the other glintbase tools.

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