pve_create_vm_firewall_rule

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. 'Create' implies a write/mutation operation, but the description doesn't mention required permissions, whether this operation is idempotent, potential side effects, or what happens on success/failure. For a 13-parameter mutation tool affecting system security, this represents a significant transparency gap.

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 consists of just three words that directly state the tool's function without any unnecessary elaboration. While it's severely lacking in detail, it's maximally concise and front-loaded with the essential action. Every word earns its place, even though more words would be beneficial.

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 firewall rule creation tool with 13 parameters, no annotations, and no output schema, the description is woefully incomplete. It doesn't explain what a successful creation returns, what validation occurs, how rules interact with existing configurations, or any system-specific constraints. The agent would need to guess about many critical aspects of tool behavior.

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?

The schema description coverage is 100%, with all 13 parameters clearly documented in the input schema. The description adds no additional parameter information beyond what's already in the structured schema. According to scoring rules, when schema coverage is high (>80%), the baseline score is 3 even with no parameter information in the description.

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 'Create VM firewall rule' is a tautology that essentially restates the tool name with minimal additional information. While it identifies the verb ('Create') and resource ('VM firewall rule'), it doesn't specify what constitutes a firewall rule in this context or differentiate it from sibling tools like 'pve_create_cluster_firewall_rule' or 'pve_set_vm_firewall_options'.

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?

The description provides absolutely no guidance about when to use this tool versus alternatives. There's no mention of prerequisites, when this specific VM firewall rule creation is appropriate versus cluster-level rules, or any context about typical use cases. The agent must infer everything from the tool name alone.

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