discord_set_channel_permissions

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

The description states the basic action but does not disclose side effects, such as whether existing overrides are replaced or merged, or whether specific permissions are required to perform the operation. No annotations are provided to supplement this information.

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, concise sentence that directly states the tool's purpose without unnecessary detail. It is well-structured and easy to parse.

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?

The description provides sufficient context for the tool's main function and mentions both channel and category targets. It does not cover potential interactions between allow and deny arrays, but overall it is adequate given the simple scope and lack of 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?

Four of five parameters have clear descriptions (channelId, roleId, allow, deny) that go beyond the schema's type information. The 'reason' parameter lacks any description, leaving a small gap in completeness.

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 (sets), the object (permission overrides), and the target (role/user on channel/category). It effectively distinguishes itself from other channel-related tools like edit_channel or remove_channel_permissions.

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 when setting permissions but does not explicitly mention when to use this tool over alternatives such as remove_channel_permissions. No guidance is given regarding conditions or prerequisites.

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