log_entry

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

Discloses it appends and timestamps, but without annotations, it does not specify behavior for missing file, permissions, or overwrite risks. Adequate for simple tool.

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?

Single sentence, no wasted words, front-loads key action and target.

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?

Has output schema (not shown) so return not needed, but misses details like file creation on demand or error handling. Adequate for simple 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?

With 0% schema coverage, the description adds meaning by indicating 'message' is the log content to append. Lacks format or length constraints, partially compensating.

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 it appends a timestamped log entry to a specific file ('banana.log'), contrasting with siblings 'add' (generic) and 'create_text_file' (creates new file vs append).

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?

Implies usage for logging messages to a specific file, but no explicit when-to-use or when-not-to-use guidance or alternatives mentioned.

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