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vengtoo

@vengtoo/mcp-server

by vengtoo

delete_role

Deletes a role by its ID, automatically revoking all access that depended solely on that role.

Instructions

Delete a role by ID. Subjects who had this role lose any access that came exclusively from it.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
idYesRole UUID
Behavior3/5

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

With no annotations, the description carries the full burden. It discloses one important behavioral trait (subjects lose exclusive access) but omits other aspects such as reversibility, required permissions, or error handling. Adds some value beyond the obvious, but not comprehensive.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is extremely concise, with only two sentences. The first sentence states the primary purpose, and the second adds key behavioral context. Every sentence earns its place with zero wasted words.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness4/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple deletion tool with one parameter and no output schema, the description is mostly complete. It covers the action and a critical side effect. Minor gaps exist: it does not mention what happens if the role doesn't exist or if the operation is idempotent, but these are not critical for basic usage.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

Schema description coverage is 100%, so baseline is 3. The tool description does not add any additional meaning to the 'id' parameter beyond what the schema already provides ('Role UUID').

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description clearly states the action (Delete), the resource (a role), and the method (by ID). It distinguishes from sibling tools like create_role and get_role, and adds a specific consequence about subjects losing exclusive access.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines3/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The description implies when to use (when a role should be removed) but does not explicitly compare with siblings like unassign_role_from_subject or delete_policy. The consequence provides some context but no direct alternatives or exclusions.

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

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