add_to_blacklist

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

No annotations are provided, so the description carries full burden. It only states 'Add to deny list' but does not disclose whether the operation is idempotent, whether duplicates are allowed, if it overwrites existing entries, or if it triggers system-wide updates (e.g., gravity). Behavioral details are lacking.

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, which is concise. However, it omits crucial details that could be included without much bloat. It is front-loaded but incomplete for effective tool usage.

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 tool's complexity (2 params, modifies state) and the presence of related siblings, the description is incomplete. It doesn't cover usage context, behavioral expectations, or parameter details. The output schema exists but is not referenced; description could benefit from mentioning return values.

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 0%, meaning the description adds no meaning beyond the input schema. The description does not explain that 'domain' expects a fully qualified domain name or what format 'comment' accepts. The schema has default null for comment, but its purpose is unclear.

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 the action 'Add' and the resource 'domain to the deny list (blacklist).' It distinguishes from siblings like 'add_to_whitelist' and 'remove_from_blacklist' by specifying the list type. However, it could be more precise about what 'blacklist' entails (e.g., ad-blocking list).

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 provides no guidance on when to use this tool versus alternatives (e.g., when to add vs remove from blacklist, or when to use whitelist instead). No context on prerequisites, side effects, or frequency of use is given.

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