brilliant-directories-mcp

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

With no annotations provided, the description carries full burden for behavioral disclosure. 'Update a tag group' implies a mutation operation but provides no information about permissions required, whether changes are reversible, error conditions, or what happens to existing data. This is inadequate for a tool that modifies data.

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 extremely concise at just three words. While this represents under-specification rather than ideal conciseness, it's front-loaded with the core action and contains 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?

For a mutation tool with no annotations, 0% schema description coverage, no output schema, and 2 parameters, the description is completely inadequate. It doesn't explain what the tool does beyond the obvious, provides no behavioral context, and offers no parameter guidance.

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%, meaning neither parameter has any documentation in the schema. The description provides no information about what 'id' or 'group_tag_name' represent, their formats, constraints, or how they're used. For a tool with 2 parameters and zero schema documentation, this is a critical gap.

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 'Update a tag group' restates the tool name 'updateTagGroup' almost verbatim, making it tautological. It specifies the verb 'update' and resource 'tag group', but doesn't clarify what aspects of a tag group can be updated or how this differs from other tag-related tools like 'updateTag' or 'updateTagType'.

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 about when to use this tool versus alternatives. The description doesn't mention prerequisites, when this operation is appropriate, or how it differs from sibling tools like 'updateTag', 'createTagGroup', or 'deleteTagGroup'.

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