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pwndbg_ksyscalls

Displays the syscall table to analyze kernel system calls during debugging. Identifies syscall numbers and names for kernel-level reverse engineering.

Instructions

Show syscall table information.

pwndbg command: ksyscalls Source: pwndbg/commands/ksyscalls.py Category: Kernel

Args: session_id: The UUID of the session.

See: https://pwndbg.re/2025.05.30/reference/pwndbg/commands/ksyscalls/

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
session_idYes

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 carries the full burden of disclosing behavior. It only states 'Show syscall table information,' implying a read-only operation, but does not explicitly confirm non-destructiveness, mention permissions, or describe side effects. The absence of any behavioral context beyond the purpose is a significant gap.

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

Conciseness4/5

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

The description is concise, consisting of a clear single-sentence purpose followed by structured metadata (source, category, args, link). Every part earns its place, though the metadata could be considered extraneous for an AI agent. The front-loading is effective.

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 kernel debugging context and the presence of an output schema (though not visible), the description provides minimal context. It does not explain what 'syscall table information' entails, expected format, or how the session_id relates to the debugging environment. This is adequate but incomplete for an agent to use effectively without additional knowledge.

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 input schema lacks parameter descriptions (0% coverage). The description adds value by stating 'session_id: The UUID of the session,' clarifying that the parameter is a UUID and refers to a session. However, it does not explain how to obtain or format the session_id, leaving room for interpretation.

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 the tool's purpose: 'Show syscall table information.' It uses a specific verb ('Show') and resource ('syscall table information'), and the name distinguishes it from sibling kernel tools like pwndbg_kbase or pwndbg_kchecksec.

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?

The description provides no guidance on when to use this tool vs alternatives (e.g., pwndbg_kbase, pwndbg_kchecksec). There is no mention of prerequisites, context, or exclusions, leaving the agent to infer usage from the name alone.

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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