magento_index

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

No annotations are provided, so the description must bear full responsibility. It states the tool indexes/re-indexes and lists file types, but lacks disclosure of potential performance impact, resource consumption, or failure modes. For a potentially heavy operation, more transparency would be beneficial.

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 two sentences, front-loaded with the core purpose, and every sentence adds value. There is no fluff, making it highly concise and structured well for an AI agent.

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 tool with one optional parameter and no output schema, the description covers the key aspects: purpose, when to use, and scope (file types). It could mention whether the operation is incremental or full, and what feedback to expect, but it is largely complete given the complexity.

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 input schema already fully describes the single optional parameter 'path' with a clear description. The tool description does not add any additional semantic meaning beyond what the schema provides, so a baseline score of 3 is appropriate.

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 the tool indexes or re-indexes the Magento codebase for semantic search, specifies when to run it (after code changes), and lists the file types it indexes. This differentiates it from the many sibling search/find tools.

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 explicitly advises to run this tool after code changes to update the search index, providing clear usage context. However, it does not mention when not to use it or explicitly contrast with alternatives, though the context of sibling tools implies it is a prerequisite for searches.

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