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

Annotations already declare readOnlyHint, idempotentHint, openWorldHint, and destructiveHint=false, so safety is covered. The description adds only 'Public', which usefully signals no authentication is needed, but adds little else about behavior or failure modes.

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, front-loaded sentences with no filler. Efficient, though the brevity borders on under-specification for a tool with an undocumented schema.

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 simple single-record read with full annotation coverage and no output schema, the description is nearly adequate. However, with 0% schema coverage it should have clarified that exactly one of slug/articleId is needed, which it does not.

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 0% and both parameters are undocumented in the schema, so the description carries the burden. It partly compensates by naming the two identifier types ('id or slug'), but does not clarify that one of the two is required, the expected format, or precedence if both are supplied.

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 (Farm Times article), with the lookup key included. It implicitly distinguishes itself from list_farm_times_articles and list_farm_times_headlines by specifying 'one article', though it never names those siblings 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?

'Get one Farm Times article by id or slug' plus 'Public read-only' implies the context (single-item fetch, no auth) without stating when to prefer this over list_farm_times_articles or what happens if the article does not exist. Usage is inferable but not spelled out.

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