bookshelf_get_config_indexer_by_id

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

The description adds no behavioral details beyond what the readOnlyHint annotation already provides. It does not mention error handling, response shape, or any side effects. Since annotations cover the read-only nature, the description still lacks context about behavior when the id is not found or other edge cases.

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?

The description is a single, front-loaded sentence that efficiently conveys the core purpose. There is no redundant information or filler.

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 read-only retrieval tool with an output schema, this description is sufficient. It clearly indicates what resource is fetched and by what identifier. The output schema covers return details, so no further explanation is needed.

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?

The schema has a single 'id' parameter with no description (0% coverage). The description merely repeats 'by id' from the tool name, adding little semantic value. However, the parameter is self-explanatory for a fetch-by-id operation, so this is adequate but not enhanced.

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 'Fetch a single config indexer by id' clearly states the action (fetch), the resource (config indexer), and the scope (single by id). It distinguishes itself from sibling list or update tools, and the name reinforces this specificity.

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?

No usage guidance is provided. There is no mention of when to use this tool versus alternatives like bookshelf_get_config_indexer or bookshelf_get_indexer. The context is implied by the name, but the description does not explicitly guide selection.

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