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William-An

cpp-debug-mcp

by William-An

gdb_run

Start program execution within a GDB debugging session, with an option to pause at the entry point of main().

Instructions

Start program execution in GDB.

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
session_idYesThe session identifier.
stop_at_mainNoIf true, stop at the beginning of main().

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are provided, and the description does not disclose behavioral traits such as state destruction, infinite execution risks, or stopping behavior beyond schema parameters. For a mutation tool, this is insufficient.

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 consists of a single, clear sentence with no unnecessary words, making it highly concise and easy to parse.

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?

Given the tool's low complexity (2 parameters, output schema exists), the description is minimally adequate but lacks context about prerequisites (e.g., need for active session and loaded binary) and behavioral outcomes.

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 coverage is 100%, so the schema already documents both parameters. The description adds no extra meaning beyond what the schema provides, justifying a baseline 3.

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 'Start program execution in GDB' clearly states the tool's action and resource, distinguishing it from siblings like gdb_continue, gdb_step, and gdb_backtrace.

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

Usage Guidelines2/5

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

No guidance is provided on when to use this tool versus alternatives such as gdb_continue or gdb_step, nor does it mention prerequisites like an active session and loaded program.

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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