get_thread_replies

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

No annotations are provided, so the description carries the full burden. It implies a read-only operation via 'get', but it does not disclose any limitations such as pagination, whether nested replies are included, the format of the 'fields' parameter, or any ownership restrictions. The phrase 'your specific thread' hints at an ownership constraint, but this is ambiguous and not fully explained.

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 with no superfluous words. It is highly concise and front-loaded with the core action.

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?

This is a simple get tool with no output schema and no annotations. The description is minimally viable: it states the purpose and implies an ownership filter, but does not provide additional context like return format, edge cases, or guidance on the 'fields' parameter. Given the large number of sibling tools, a bit more context would improve completeness.

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 100%, and both parameters have descriptions: 'thread_id' and 'fields'. The tool description adds no additional meaning beyond what the schema already provides. Baseline for full schema coverage is 3.

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 'Get replies to your specific thread', which is a specific verb+resource+scope. It distinguishes itself from sibling tools like get_my_threads (which gets threads), manage_reply (which manages replies), and create_reply (which creates replies).

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 implies usage: use when you need to retrieve replies for a thread you own. However, it provides no explicit guidance on when to use this tool versus alternatives, nor does it mention any exclusions. With multiple related sibling tools, more explicit guidance would be helpful.

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