discord_purge_messages

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

With no annotations, the description carries full burden. It discloses the destructive nature (bulk-delete), the 14-day limit, and permission requirement. However, it omits the critical need to set 'confirm' to true to execute the action, which is a key behavioral trait.

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 concise sentences front-load the main action and add essential constraints. No wasted words.

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?

Lacks mention of the 'confirm' parameter requirement and the maximum limit of 100 messages. While it covers the 14-day constraint and permission, these gaps reduce completeness for a mutation tool with no output schema.

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 75% (3 of 4 params have descriptions). The description adds minimal value beyond the schema, only mentioning the optional user filter (userId). The 'limit' and 'confirm' parameters are not elaborated beyond their schema descriptions.

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 verb 'bulk-delete' and resource 'recent messages in a channel', with an optional user filter. It distinguishes from sibling tools like discord_delete_message (single message) and other bulk operations like discord_prune_members.

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 includes key usage conditions: only messages newer than 14 days and requires 'Manage Messages' permission. However, it does not explicitly mention when to use alternatives (e.g., discord_delete_message for single messages).

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