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acl_create

Bind a user or group to a role on a resource path by creating an access control entry.

Instructions

Create an ACE binding a user or group to a role on a resource path.

ace_type is 'user' or 'group'; provide the matching user_id or group_id.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
pathYes
ace_typeYes
role_idYes
propagateNo
user_idNo
group_idNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault

No arguments

Behavior2/5

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

No annotations are provided. The description reveals it is a write operation but lacks details on side effects, idempotency, permission requirements, or error conditions.

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

Conciseness4/5

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

The description is two sentences with no redundancy. However, it is too brief and omits critical behavioral details that could be added without lengthening it significantly.

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

Completeness2/5

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

With 6 parameters, no schema descriptions, no annotations, and an output schema not explained, the description is insufficient. It does not cover return values, side effects, or error conditions.

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?

With 0% schema coverage, the description must compensate. It explains ace_type, user_id, and group_id, and implies path and role_id via the binding statement, but does not mention 'propagate' or provide format constraints.

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 (Create an ACE), the resource (binding a user or group to a role on a resource path), and distinguishes from siblings like acl_delete and acl_list.

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 explains ace_type and the matching user/group IDs but does not provide explicit guidance on when to use this versus acl_update or other alternatives, nor does it mention prerequisites.

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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