read_index

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

No annotations are provided, but the description's 'Read' verb makes the read-only, non-mutating nature clear and states what the file contains. For a zero-parameter local index read, no auth, rate-limit, or destructive-behavior disclosure is really needed, so the modest gap is acceptable rather than severe.

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 the resource and its contents, and zero wasted words. Nothing to trim.

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 trivial zero-param read tool with no output schema, the description covers the essentials. However, given that list_articles is an adjacent sibling that could plausibly serve the same need, the lack of any disambiguation leaves the definition only minimally 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?

The tool takes zero parameters, so there is nothing for the description to disambiguate; the baseline for a parameterless tool applies. The description correctly implies no input is required.

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 (Read) and resource (wiki master index / index.md) and clarifies the returned content ('lists all articles by section'). It does not explicitly distinguish itself from the nearby sibling list_articles, so it stops short of a 5.

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 when-to-use or when-not-to-use guidance and no mention of alternatives such as list_articles, search_wiki, or read_article. The agent must infer from context whether reading the master index is preferable to listing or searching.

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