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

The annotations already declare readOnlyHint=true, idempotentHint=true, and destructiveHint=false, so the safe read nature is covered. The description adds useful context by saying the record is public and by listing the fields returned, though it does not disclose failure/not-found behavior or auth requirements.

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 two short sentences: the first front-loads the operation and the second summarizes the return fields. There is no filler, and each sentence contributes useful information.

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 low-complexity, safe, idempotent read operation with a single required parameter, the description covers the core behavior and even provides return-field context that would otherwise be missing since there is no output schema. It lacks detail about not-found/error behavior, but the overall profile is reasonably complete.

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 0%, and the description only restates 'by ID' without giving any meaningful detail about what the ID represents, where it comes from, or how to obtain it. The schema gives only min/max length, so the description adds little beyond restating the parameter name.

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 clearly states a specific verb and resource ('Dohvati javni zapis znanja prema ID-u') and even lists the expected return values (source, revision, freshness, unknowns). It is clear enough to recognize a single-record fetch-by-ID operation, but it does not explicitly contrast itself with sibling tools such as search_knowledge.

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: call it when you have an ID for a public knowledge record. The description gives no explicit 'when to use vs. alternatives' guidance and does not mention that search_knowledge should be used when the ID is unknown, so some inference is left to the agent.

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