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

Annotations already cover the safety profile (readOnlyHint, openWorldHint), and the description adds real context beyond them: the PCSX-first-then-legacy-SmartApply fallback strategy and the fact that this is credential-free public ATS JSON. No auth, rate-limit or pagination detail, but the fallback disclosure is meaningful operational information.

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?

Four short sentences, front-loaded with the action and return payload, then sourcing, then fallback, then routing. Mild redundancy between 'as in the board endpoint' and the closing board-tool pointer, but nothing wasted.

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 values needn't be enumerated, and the description still notes the description is returned as full HTML/text. Combined with the fallback note and the sibling pointer, an agent has enough to call it correctly; only edge cases like missing ids 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 baseline is 3, but the description adds provenance the schema cannot: 'id' is scoped to a board listing and tenant/domain are tied to the board endpoint, giving the agent a clear source for each value.

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 and resource ('Returns a single Eightfold position') plus the payload shape ('with its full HTML/text description'), which distinguishes it from the sibling jobs_eightfold_board that lists positions rather than fetching one.

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?

Explicitly says to use jobs_eightfold_board to list a tenant's board and clarifies that 'id is the position id from a board listing', establishing the prerequisite lookup. It stops short of naming when-not-to-use conditions or alternatives for retrieval.

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