get_series_by_id

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

With no annotations provided, the description carries the behavioral disclosure burden. It clearly indicates this is a read of series metadata, which is a basic behavioral signal. It does not discuss not-found behavior, authentication, or response shape, but for a simple lookup of metadata this is adequate.

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, compact sentence communicates the operation, resource, and returned fields with no filler. The most important scoping detail, that it is series metadata by ID, comes across immediately.

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 one-parameter lookup tool with no output schema, the description covers the essential output fields and the lookup key. It does not specify behavior for a missing or invalid ID, but such error semantics are a minor gap for this low-complexity read flow.

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%: the only parameter, id, is already fully described as 'Series ID'. The description merely repeats the 'by series ID' usage without adding new semantic details, so the baseline 3 applies.

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?

The description names a specific resource, series metadata, and enumerates key returned fields (name, description, book count) via a concrete operation, 'get'. This is sufficient to distinguish it from siblings like get_books_in_series, which focus on the constituent books rather than series-level metadata.

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?

The description implies when to use the tool: when you have a series ID and need the series' metadata, not its full book list. It does not explicitly mention alternatives or contrast with get_books_in_series, so the usage guidance is reasonable but implicit.

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