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svd_load

Load a CMSIS-SVD file to enable peripheral register interpretation for MCU debugging. Provides structured register maps for fault diagnosis.

Instructions

Load a CMSIS-SVD file to enable peripheral register interpretation.

SVD files define the register map of a chip. You can find SVD files in your chip vendor's SDK, or at https://github.com/posborne/cmsis-svd-data Example: svd_load('/path/to/STM32L496.svd')

Tool call template

Replace each placeholder with a value matching the input schema. Only required parameters are included; add optional parameters as needed.

{
  "id": 1,
  "jsonrpc": "2.0",
  "method": "tools/call",
  "params": {
    "arguments": {
      "svd_path": "<svd_path>"
    },
    "name": "svd_load"
  }
}

Input Schema

Name	Required	Description	Default
`svd_path`	Yes

Schema Changelog

Changes observed during successful MCP inspections.

First observedv0.5.2Jul 31, 2026

TDQS

A3.7/5.0

Behavior2/5

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

With no annotations, the description carries the full burden, but it only restates the loading action and provides background on SVD files. It does not disclose side effects (e.g., whether a previous SVD is replaced), prerequisites (e.g., need for a probe connection), or failure modes, which is limited behavioral transparency.

Agents need to know what a tool does to the world before calling it. Descriptions should go beyond structured annotations to explain consequences.

Conciseness5/5

Is the description appropriately sized, front-loaded, and free of redundancy?

The description is concise (three sentences plus an example) and front-loaded with the core purpose. Every sentence adds value, including the useful external link and the example invocation.

Shorter descriptions cost fewer tokens and are easier for agents to parse. Every sentence should earn its place.

Completeness3/5

Given the tool's complexity, does the description cover enough for an agent to succeed on first attempt?

For a simple tool with one parameter and no output schema, the description covers the basic purpose and usage. However, it does not mention that this tool is a prerequisite for svd_read_peripheral or describe error behavior, leaving some contextual gaps.

Complex tools with many parameters or behaviors need more documentation. Simple tools need less. This dimension scales expectations accordingly.

Parameters3/5

Does the description clarify parameter syntax, constraints, interactions, or defaults beyond what the schema provides?

The schema has no description coverage (0%) for the single parameter svd_path, so the description must compensate. It does so by explaining what SVD files are and showing an example path, but it does not specify constraints or the exact expected input format beyond the schema's type string.

Input schemas describe structure but not intent. Descriptions should explain non-obvious parameter relationships and valid value ranges.

Purpose5/5

Does the description clearly state what the tool does and how it differs from similar tools?

The description states a specific verb ('Load'), a resource ('CMSIS-SVD file'), and the purpose ('to enable peripheral register interpretation'). It clearly distinguishes from siblings such as svd_read_peripheral, which reads registers, and match_chip_name, which matches chip names, by focusing on loading the file itself.

Agents choose between tools based on descriptions. A clear purpose with a specific verb and resource helps agents select the right tool.

Usage Guidelines4/5

Does the description explain when to use this tool, when not to, or what alternatives exist?

The phrase 'to enable peripheral register interpretation' provides clear context for when to use the tool. It does not explicitly mention alternatives or exclusions, but the purpose and example make the intended usage unambiguous.

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