reddit_domain_posts

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

With no annotations, the description carries the burden and discloses useful behavioral traits: output is 'normalized', and a specific throttling behavior (503 with Retry-After) with remediation guidance is provided. It does not mention authentication or mutation safety, but 'List' strongly implies read-only.

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?

Two sentences, with the core purpose in the first sentence and actionable error handling in the second. No wasted words, perfectly front-loaded.

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 5 parameters (fully schema-documented) and no output schema, the description adequately covers purpose, output normalization, and error handling. It does not describe return structure, but that is acceptable without an output schema and with such a focused listing use case.

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% for all 5 parameters, so the baseline is 3. The description adds no extra parameter-specific semantics beyond 'from a linked domain', which is already reflected in the schema's domain description. No additional value to parameters.

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 uses a specific verb ('List') plus resource ('Reddit domain posts') and scoping ('from a linked domain'). This clearly distinguishes it from sibling tools like reddit_subreddit_posts and reddit_user_posts, which operate on different dimensions.

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 clear usage context: use this when you need posts originating from a specific domain. It does not explicitly name alternatives or exclusions, but the domain-specific scope is evident and sufficient for selection among siblings.

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