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

With no annotations supplied, the description carries the full burden and does reasonably well: it declares read-only status, states the sort order, and explicitly excludes drafts and moderation rows, which is exactly the kind of scope constraint an agent needs before trusting the output. It does not mention pagination behavior or any permission requirements, which keeps it from a 5.

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?

Three short sentences, front-loaded with the resource and scope, then safety, then exclusions. No filler and nothing that could be cut without losing 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 simple two-parameter read tool with no output schema and no annotations, the description covers what the tool returns conceptually (published articles, newest first, no drafts or moderation rows). The absence of any note on return shape or pagination is a minor gap given there is no output schema to lean on, but not a blocking one.

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%, so both limit and category are fully documented in the schema, establishing a baseline of 3. The description adds no additional meaning about how category interacts with the published filter or how limit behaves, so it does not exceed that 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?

Names a specific verb and resource ("List published Silicon News Wire articles") plus ordering ("newest first"), so the agent knows this is an enumeration of published content. It stops short of naming wire.search or wire.get as the alternatives, so discrimination from siblings relies on the verb alone.

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?

Implicit guidance only: the word "List" and the published-only scope suggest browsing rather than targeted retrieval, but there is no explicit statement about when to prefer this over wire.search or wire.get. An agent can infer the routing but must do the work itself.

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