Discord Server Setup MCP

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

With no annotations, the description carries full burden but provides minimal behavioral context. It states the action ('creates') and supported types, but doesn't disclose permission requirements, rate limits, whether changes are reversible, error conditions, or what the response contains. This is inadequate for a mutation tool with 11 parameters.

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, efficient sentence that front-loads the core purpose. Every word earns its place by specifying the action, resource, and supported types without redundancy or fluff.

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?

For a complex mutation tool with 11 parameters, 0% schema coverage, no annotations, and no output schema, the description is insufficient. It lacks details on permissions, error handling, return values, and parameter usage, making it incomplete for effective agent use.

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 0%, so the description must compensate but adds no parameter-specific information. It mentions channel types (matching the 'type' enum) but doesn't explain other parameters like 'guildId', 'categoryId', or complex ones like 'permissionOverwrites'. This leaves most parameters undocumented.

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 ('creates') and resource ('new channel in a Discord server'), and specifies the supported channel types. It distinguishes from siblings like 'edit_channel' (modification) and 'delete_channel' (removal), though it doesn't explicitly compare to 'create_category' which creates a different resource type.

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?

No guidance is provided on when to use this tool versus alternatives. It doesn't mention prerequisites (e.g., needing guildId), when not to use it, or how it differs from similar tools like 'edit_channel' for modifications or 'create_category' for category creation.

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