gemini_analyze_document_tool

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

With no annotations provided, the description carries the full burden of behavioral disclosure. It does not mention that the tool is read-only, whether it reads the file from the local system, what the output structure is, or any side effects. The presence of an output schema is not referenced, and no details about error handling or limitations are given. The description is purely functional with no transparency into behavior.

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 sentence, direct and to the point, with no redundant phrasing. It effectively communicates the core action without fluff. However, it is perhaps too terse, lacking any additional context that could be conveyed concisely, but it does not suffer from verbosity.

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?

Given the absence of annotations and the minimal description, the tool is severely under-specified. It lacks guidance on selection criteria, output details, and behavioral expectations. The many sibling tools highlight a need for clarity on when this generic 'analyze' tool is appropriate, but nothing is provided. Overall, the description is insufficient for an agent to confidently use it correctly.

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% and each parameter has a description: 'Absolute path to the document', 'Question or instruction about the document', and 'Model to use'. These descriptions are clear and sufficient for basic understanding, but they lack additional context such as allowed values for model (e.g., 'flash' vs other options), formatting rules, or how the question parameter affects output. The descriptions are adequate but shallow.

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 states the tool analyzes documents of various types (PDF, DOCX, TXT, etc.), which identifies the general function but uses the vague verb 'analyze' without specifying what kind of analysis is performed (summary, extraction, QA, etc.). While it differentiates from some siblings by covering multiple formats, it does not clearly distinguish from tools like gemini_summarize_tool or gemini_extract_tables_tool, which have more specific purposes.

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 guidance is provided on when to use this tool versus the numerous sibling tools. There is no mention of prerequisites, file size limits, or scenarios where this tool is preferred over gemini_summarize_pdf_tool or gemini_extract_tables_tool. The description offers no contextual hints for selection.

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