pcap_tls_analysis

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

With no annotations provided, the description carries full burden and adds valuable behavioral context: it specifies the return data fields (sni_values, tls_versions, etc.), declares it as 'Read-only file analysis' (indicating non-destructive operation), and implies file-based input. However, it doesn't mention error handling, performance characteristics, or output format details.

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 efficiently structured in two sentences: the first states purpose and return values, the second adds behavioral context. Every word earns its place with zero 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?

For a single-parameter read-only analysis tool with no output schema, the description provides good context: purpose, return fields, and safety declaration. It could be more complete by specifying output format or error conditions, but it's largely adequate given the tool's simplicity.

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 100% (the single parameter 'pcap_path' is fully described in the schema as 'Path to the PCAP file'). The description doesn't add any parameter-specific information beyond what the schema provides, so baseline 3 is appropriate.

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 specific action ('Analyze TLS handshakes, SNI values, and certificate data in a PCAP') and resource ('PCAP'), and distinguishes from siblings by focusing on TLS analysis rather than other PCAP tools like pcap_dns_analysis or pcap_extract_credentials.

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 implies usage for TLS analysis in PCAP files but doesn't explicitly state when to use this tool versus alternatives like pcap_detect_scan or pcap_overview. No exclusions or prerequisites are mentioned.

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