pressable_set_php_filesystem_permissions

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

With no annotations provided, the description carries full responsibility for behavioral disclosure. It only says 'Set PHP file system permissions' without explaining what permissions are changed, whether the operation is potentially disruptive, or what effects occur on the site. This is insufficient for a mutation tool.

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, direct sentence with no wasted words. It is appropriately sized for a simple one-parameter tool, though it lacks additional structure or helpful breakdown. It is efficient but not comprehensive.

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?

Given the tool has one parameter and no output schema or annotations, the description still fails to provide essential context. It does not specify what the 'id' refers to, what permissions are set, or any side effects. For a mutation tool, this is incomplete and would leave an agent guessing.

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%, and the description does not mention the 'id' parameter or its meaning. The only parameter is a string 'id', but the description never explains that it likely refers to the site ID. The schema itself provides no additional context, so the parameter remains semantically opaque.

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 states the action clearly: 'Set PHP file system permissions for a site.' It has a specific verb ('Set') and resource ('PHP file system permissions'), and it names the target ('a site'). However, it could be confused with other setter tools like 'pressable_set_php_version' or 'pressable_set_site_usage_limits', so it lacks full sibling differentiation.

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 or when to prefer an alternative. The description is a single sentence with no context about prerequisites, typical use cases, or distinctions from sibling tools.

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