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William-An

cpp-debug-mcp

by William-An

gdb_raw_command

Execute raw GDB commands on a debug session to inspect or control program state, with restricted access to prevent unsafe operations.

Instructions

Execute a raw GDB command (with safety restrictions).

Blocked commands: shell, python, pipe, source.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
session_idYesThe session identifier.
commandYesThe GDB command to execute.

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

With no annotations provided, the description must fully disclose behavioral traits. It mentions safety restrictions but does not explain side effects, error handling, or what happens when a blocked command is attempted. This is insufficient for full 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 extremely concise: two sentences. The first states the purpose, the second lists the important restrictions. No unnecessary words, every sentence earns its place.

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

Completeness4/5

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

Given the presence of an output schema and a rich set of sibling tools, the description is fairly complete. It covers the key limitation (blocked commands), which is critical for safe usage. Could add more on output expectations but overall adequate.

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?

Schema description coverage is 100%, so baseline is 3. The description does not add any meaning beyond the schema; it simply restates the command parameter. No additional context is provided for parameters.

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 clearly states 'Execute a raw GDB command', using a specific verb and resource. It distinguishes itself from sibling tools like gdb_backtrace, gdb_run, etc., which are specialized, by offering a general-purpose command execution.

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 description lists blocked commands (shell, python, pipe, source) which provides clear restrictions. This implies when not to use the tool. However, it does not explicitly state when to prefer sibling tools, though contextually that is understood.

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

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