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

The readOnlyHint=true annotation already establishes this as a safe, non-mutating read, so the description need not restate safety. It adds the underlying REST mapping (GET /links/{id}), which is useful context, but says nothing about error behavior for a missing id or the shape of the returned link object.

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 short sentences, the operation and resource are front-loaded, and the REST mapping follows as supporting detail. No filler or repetition.

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 trivial single-record read with full schema coverage and a readOnlyHint annotation, the description supplies enough to invoke correctly. It is slightly thin on what the returned link contains and how a missing/invalid id surfaces, but no output schema exists to carry that burden either.

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 there is a single required parameter whose schema description ('The scheduling link id.') is sufficient. The description only echoes the same idea with 'by id', adding no format, source, or lookup guidance 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 (get) and resource (a single scheduling link identified by id), which is clearer than a bare 'Get link' title. It implicitly distinguishes itself from the sibling savvycal_list_links by emphasizing 'a single', though it never names that sibling explicitly.

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 only implied: an agent can infer it should call this when it already has a link id and needs one record rather than a list. There is no explicit 'when to use' guidance, no prerequisites, and no mention of alternatives such as savvycal_list_links for retrieval by other criteria.

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