Get All Devices in the Network

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

readOnlyHint=true already declares the safety profile, so the description's added value is the disclosure that Packet Tracer's auto-created power distribution device is hidden by default — a genuinely non-obvious behavioral trait that affects results. It does not cover scale/pagination or whether the list is a live snapshot.

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?

Front-loaded with the core action and return fields, then the one behavioral caveat, then examples. The examples are somewhat redundant and 'List all routers and switches' mildly implies a filtering capability this tool lacks, so there is a little slack.

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?

An output schema exists so return-value detail is already structured, and the readOnly annotation covers safety. With purpose, parameter meaning and the hidden-device caveat all present, nothing needed to call this correctly is missing.

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 single parameter has 0% schema description coverage, and the description fully compensates by naming the exact device class it governs and the default-hidden behavior: infrastructure is excluded unless include_infrastructure=true. An agent can set it correctly without touching the schema.

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 and resource — 'List every device in the active Packet Tracer network' — and even enumerates the fields returned (name, IPC class, model, type, power state, position). The scope is clearly narrower than siblings like get_all_links or get_interfaces_for_device, though no sibling is named explicitly.

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?

Three sample user queries ('What devices are in my Packet Tracer network?', 'List all routers and switches', 'Show me the topology') give concrete intake contexts for when to pick this tool. There are no explicit exclusions or alternative-tool routing, and 'Show me the topology' arguably overlaps with get_all_links.

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