decode_register_svd

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

With no annotations, the description carries the full behavioral burden. It discloses that output includes enum value hints and descriptions, which is useful, but it does not state read-only nature, error handling for invalid files or names, or any side effects.

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 front-loaded with the core purpose, followed by a clarifying example. It is concise and every element earns its place, though the example could be slightly more compact if paired with explicit parameter labels.

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 values need not be detailed, but the 0% input schema coverage means the description should do more to define the required parameters. It provides an example and explains svd_path, but omits peripheral/register semantics and error behavior, leaving gaps for a four-parameter tool.

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. It explicitly explains that svd_path points to a vendor SVD file, and the example maps all four positional arguments, but it does not define peripheral, register, or value beyond the example, leaving some ambiguity.

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 states a specific verb and resource: decode register bitfields using a CMSIS-SVD file. It clearly conveys the tool's function, but does not explicitly differentiate from the sibling tool decode_register, which likely serves a similar purpose without SVD.

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 offers no explicit when-to-use or when-not-to-use guidance, nor does it name alternatives such as decode_register. It only implies usage through the mention of CMSIS-SVD files and an example, leaving selection between siblings to inference.

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