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

Annotations already declare readOnlyHint=true and destructiveHint=false, so the safety profile is covered. The description adds useful context by naming the return fields and exposing the underlying endpoint (GET /snippets), but says nothing about pagination beyond what the schema notes or about result limits.

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 plus the endpoint path; no wasted words. The raw endpoint adds little value over the field list but is harmless.

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 list tool with full schema coverage and annotations covering safety, the description is complete enough. The returned-field summary compensates for the absent output schema.

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%, so the single page parameter is fully documented in the schema, including the next_page chaining hint. The description adds no parameter detail beyond the schema baseline.

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 resource (reusable content snippets) and even enumerates the returned fields (identifier, name, mode, reference count). It's clearly distinguishable from write siblings like buttondown_create_email_draft, though it does not explicitly contrast with the many other 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?

The listing intent is implied by the verb and the returned-field summary, but there is no explicit when-to-use guidance, prerequisites, or routing vs. sibling list tools. Adequate but leaves selection largely to inference.

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