search_firewall_sessions

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

No annotations are provided, so the description carries the full burden. It mentions that results include the deciding security rule, which is useful. However, it omits permissions, rate limits, default behavior of since_minutes/limit, and whether the search spans all sessions or applies defaults. For a 10-parameter search tool with zero annotation coverage this is thin.

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?

Two short sentences, front-loaded with the search target and followed by action values and return content. No wasted words, though it is perhaps too sparse to be fully useful.

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?

With 10 parameters at 0% schema coverage and no annotations, the description leaves too much unstated. It mentions the output (deciding rule) and one action value set, but does not explain filters, defaults, or scope. An output schema exists, so return-value explanation isn't required, but the input side is inadequately covered.

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%, so the description must compensate. The action parameter is partially documented by giving allowed values (allow, deny, drop, reset-both), but the other nine parameters (src_ip, dst_ip, ports, zones, rule_name, application, limit, since_minutes) receive no syntax, semantics, or default explanations. The description does not carry the required load.

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?

States a specific verb (search) plus resource (PaloAlto sessions on hub firewalls), which is clear and scoped. It does not explicitly distinguish itself from sibling search_flows or lookup_user_sessions, but the firewall-session framing is specific enough for an agent to differentiate.

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?

Implicit context is given ('hub firewalls', security-rule focus), but there is no explicit when-to-use vs when-not guidance and no mention of the sibling tools an agent might confuse it with, such as search_flows. Adequate but with clear gaps.

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