get_action_items

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

No annotations are present, so the description carries the behavioral burden. It accurately discloses a read action returning file contents and 'action-items.md' signals markdown format. However, it does not mention behavior for missing files, invalid slugs, or whether the returned content is raw markdown or structured output.

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 short sentence with no filler. It front-loads the essential action and scope immediately, making it easy for an agent to parse quickly.

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 read tool with an output schema, the description is minimally viable. The core action is clear, but missing slug semantics and lack of sibling differentiation leave some inference required. It is not fully complete, but it is not severely deficient.

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 0% and slug has no schema description. The description's 'for one book' implies that slug identifies the book, but it never explicitly names the parameter or explains how to obtain a valid slug, such as from list_books. This is partial compensation at best.

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 clearly states a specific verb-resource pair: returning the contents of action-items.md for one book. It distinguishes itself by naming a distinct file resource, though it does not explicitly contrast with siblings like get_personal_notes or get_book_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?

There is no guidance about when to use this tool versus siblings such as get_personal_notes or get_chapter_summary. The phrase 'for one book' implies a per-book scope, but no alternatives, exclusions, or decision rules are provided.

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