ddns_log

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

No annotations are provided, so the description must carry the full behavioral disclosure. It only states 'read-only', which hints at non-destructive behavior, but does not describe the output format, whether logs are filtered, or any rate limits. This is insufficient for a log tool with no output schema.

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 extremely concise, using a single phrase without redundancy. The 'read-only' parenthetical adds a key behavioral hint. It is efficiently front-loaded, though the brevity comes at the cost of completeness.

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 large set of sibling tools including many log-related tools, this description is incomplete. It does not state what the log contains, how it is formatted, or how it differs from similar tools like log_tail. The absence of an output schema and behavioral details leaves a significant gap for an agent trying to 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?

The tool has zero parameters, so the schema is fully covered and there is nothing to explain. The description correctly omits parameter details, and the baseline of 4 applies because there is no need for additional semantic explanation.

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 'DDNS log (read-only)' clearly identifies the resource and action (reading logs), but it is vague about what exactly is returned. It doesn't explicitly distinguish from sibling log tools like log_tail or ddns_show, though 'log' implies it's different from configuration display. The purpose is generally clear but lacks specificity.

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 guidance on when to use this tool versus alternatives. No mention of when to prefer ddns_log over ddns_show or other log tools. The description provides no context for selection, leaving the agent to infer usage from the name alone.

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