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pwndbg_envp

Print environment variables of the running program to inspect process context. Optionally specify a variable name to retrieve a specific value.

Instructions

Print environment variables of the running program.

pwndbg command: envp (aliases: env, environ) Source: pwndbg/commands/argv.py Category: Linux/libc/ELF

Args: session_id: The UUID of the session. name: Optional specific environment variable name.

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

Input Schema

TableJSON Schema
NameRequiredDescriptionDefault
session_idYes
nameNo

Output Schema

TableJSON Schema
NameRequiredDescriptionDefault
resultYes
Behavior2/5

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

No annotations are present, so the description carries full burden. It only says it prints variables, with no mention of side effects, permissions, or read-only nature. Lacks depth beyond a basic statement.

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 relatively concise with two clear sections: purpose and technical details. The technical details (source, category) are somewhat extraneous but not excessive.

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 presence of an output schema (not shown) and simple parameter set, the description covers purpose and parameters adequately but lacks usage guidance and behavioral disclosure, which would be expected with no annotations.

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

Parameters4/5

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

Schema coverage is 0%, but the description explains both parameters: session_id as 'UUID of the session' and name as 'Optional specific environment variable name', adding meaning beyond the schema titles.

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 'Print environment variables of the running program' with a specific verb ('Print') and resource ('environment variables'), distinguishing it from siblings like pwndbg_argv (arguments) and pwndbg_argc (argument count).

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

Usage Guidelines3/5

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

The description implies usage for debugging environment variables but does not provide explicit guidance on when to use versus alternatives, or when not to use. No exclusions or context are given.

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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