create_device_parameter_snapshot

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

Goes well beyond the annotations by disclosing that reads are item-by-item and therefore not an atomic same-moment snapshot, that a failed run does not publish a partial backup, and that no device write occurs. It also records what the snapshot contains (identity/version, raw values, precise decimal values, time range) and notes the format is not bnproj. This is unusually rich behavioral context.

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?

Single dense paragraph that front-loads the core action and scope before moving to behavioral caveats and limitations. Every clause carries information, though the compression in Chinese makes it slightly hard to scan and it could be broken into clearer segments.

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 an output schema present, return values need not be described, so the description's job is behavioral and scope coverage, which it largely fulfills: defaults, filtering, atomicity caveats, failure semantics, and format limitations are all present. The remaining gap is the unexplained port, transport, and label parameters.

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 carry parameter meaning. It adequately explains groups (limits to specified groups) and include_monitoring (only true includes read-only monitoring items) plus the implicit default selection, but it says nothing about port, transport (enum serial/selected_tcp), or the required label, leaving three of five parameters undocumented for a first-time caller.

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 pair and resource: reads the device's actual configuration read-only and saves a new JSON backup (create_device_parameter_snapshot). This clearly separates it from read_device_parameters and list_device_parameter_snapshots, though no sibling is named explicitly, which keeps it just short of a 5.

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?

Explains the default scope (all readable/writable non-reserved, non-P parameters), how groups narrows it, and that include_monitoring=true is needed to capture read-only monitoring items. It also clarifies non-use cases: it does not write to the device and does not yet support restore/write-back in this format, which prevents an agent from treating it as a restore tool.

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