vm_agent_file_write

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

No annotations provided, so full burden falls on description. Description only says 'write content' without specifying whether it creates/overwrites/appends, permissions, or side effects. Insufficient for a file write operation.

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?

Description is concise with main purpose front-loaded. Could be improved by adding prerequisites or examples, but no unnecessary sentences.

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?

4 required parameters, no annotations, output schema exists but description lacks info on error handling, post-conditions, or behavior when file exists. Incomplete for a file write tool.

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 description coverage is 0%, but the description adds brief explanations: 'Absolute file path inside the guest' and 'File content to write.' This provides some meaning beyond the schema's titles, though minimal.

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?

Clearly states the action 'Write content to a file inside a VM via the guest agent,' specifying the verb, resource, and method. Distinguishes from sibling tools like vm_agent_file_read and vm_agent_exec.

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 on when to use this tool vs alternatives. Does not mention prerequisites (e.g., guest agent must be running) or context where this is preferred over vm_agent_exec or other file operations.

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