add_address_list_entry

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

With no annotations provided, the description carries the full burden. It discloses the timeout behavior and permanent default, and the environment variable requirement. However, it does not mention idempotency, error handling, or return values, leaving gaps in behavioral understanding.

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 well-structured with a brief header, a use case sentence, and a clear parameter list. It is reasonably concise, though the 'Args:' section could be slightly tighter. Every sentence adds value with no redundancy.

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 low complexity of the tool, the description covers the core action adequately. However, without an output schema, it omits any explanation of return values or error conditions, which is a notable gap for a write operation.

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 coverage is 0%, so the description must compensate. It provides examples and explanations for all four parameters (address, address_list, comment, timeout), including format hints and default values. This adds significant meaning beyond the schema structure.

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 clearly states the action ('add IP/subnet to a firewall address-list') and specifies the resource ('address-list'). It includes a use case differentiation ('suitable for mass blocking/allowing'), distinguishing it from sibling tools like 'remove_address_list_entry' and individual rule tools like 'add_firewall_drop'.

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 specifies a prerequisite ('BUTUH MIKROCLAW_ALLOW_WRITE=true') and suggests when to use it ('for mass blocking/allowing'). However, it does not provide explicit exclusions or alternatives, leaving the agent to infer when not to use this tool.

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