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

Annotations already declare readOnlyHint=true, idempotentHint=true, destructiveHint=false and openWorldHint=false, so the safety profile is covered by structured data. The description adds nothing beyond the verb — no note on whether an unknown ID errors or returns null, and no indication of the returned record's shape.

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 with no waste; appropriate for a simple lookup. It is slightly too terse given the schema gaps, but nothing is padded.

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?

There is no output schema, so the description should hint at what a fetched analyzer entry contains or what happens on a miss. For a simple single-record read tool it is minimally adequate but leaves the calling contract partially unstated.

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 both parameters are nullable and optional, so the description must carry the burden. It names analyzer_id and analyzer_uuid but never states that at least one is required, that they are alternate lookup keys, or what the type/format of each is beyond the parameter names themselves.

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 ('Fetch') and resource ('a single seliee_crawl_keyword_analyzer entry') plus the lookup keys, which distinguishes it from list_crawl_keyword_analyzer and the create/delete siblings. The internal table-style name is a bit opaque but the singular/plural contrast carries the intent.

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 word 'single' implicitly contrasts with list_crawl_keyword_analyzer, but no explicit when-to-use guidance or alternative is named. Nothing says what happens if both keys are supplied or if neither is.

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