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

Annotations cover the safety profile (readOnlyHint, openWorldHint), and the description adds genuinely non-structured context: 'Credential-free public ATS feed' (no auth needed) and the XML-to-shared-Job normalization with detail inlined. It does not discuss rate limits or pagination, keeping 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 sentences, front-loaded with purpose and filters, then the URL convention, then the disambiguation pointer. Every sentence earns its place with no redundancy.

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?

An output schema exists, so return-value explanation is unnecessary, and the description still notes the shared-Job normalization usefully. Combined with annotations and full schema coverage, the definition is nearly complete; only edge behaviors like pagination or failure modes are unaddressed.

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 100%, so the schema already documents all four parameters including the subdomain semantics. The description restates the company-subdomain convention and that department/location/remote are optional filters, adding no syntax or format detail beyond the schema. Baseline 3 is appropriate.

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 ('Lists'), a precise resource ('a company's public Personio board feed (XML)'), and the shape of the output ('normalized to the shared Job shape with detail inline'). It also explicitly distinguishes itself from the sibling jobs_greenhouse_board, so an agent can route without opening either schema.

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?

Names the alternative sibling jobs_greenhouse_board and the condition that selects it ('to list a company's Greenhouse job board'), giving clear context. It stops short of stating when-not to use this tool or any prerequisites beyond the credential-free note, so it is slightly below fully explicit.

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