Get a specific pathway

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

Annotations already declare the full safety profile (readOnly, idempotent, non-destructive, closed-world), so the description carries a lighter burden. It usefully discloses the composite return shape (ordered steps spanning sessions, tutorials, and docs), which annotations do not cover, but says nothing about error behavior for an unknown id or ordering guarantees.

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 filler. It is efficient, though its brevity is part of why usage and parameter guidance are absent rather than a strength in itself.

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 complete annotation coverage, the description covers the essential behavior and return content. Only the lack of routing to wwdc_list_pathways for id discovery keeps it from being fully complete.

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 50%: the 'format' enum is self-documenting, while 'id' has no description in either schema or prose. The description implies 'id' identifies the pathway but adds no format, source, or discovery hint (e.g. that it comes from wwdc_list_pathways), so it does not fully compensate for the gap.

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 pathway') and adds the scope of what comes with it ('ordered steps: sessions + tutorials + docs'). It implicitly contrasts with the sibling wwdc_list_pathways by being the singular retrieval, but it never names or explicitly distinguishes that sibling.

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?

There is no statement of when to use this tool versus wwdc_list_pathways, and no prerequisite or exclusion guidance. The only usage signal is the implicit singular-vs-plural pairing with the list tool, which the agent must infer from the name alone.

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