password-attack-agent

A security agent for testing passwords and password-derived credentials against authorized systems. It supports online login attempts, offline password-hash cracking, credential spraying, wordlist improvements, and rule-based attacks.

In plain words
What is it for?
Use it to test SSH, FTP, HTTP, SMB, or RDP logins; analyze password hashes with cracking tools; optimize wordlists; and apply password attack rules.
Why use it?
It helps identify weak, reused, or guessable credentials across common services and evaluate password hashes obtained during an authorized assessment.

Agent

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add agents/humaidhahm/opencode-pentester/password-attack-agent
Clone the repo
git clone --depth 1 https://github.com/humaidhahm/opencode-pentester
Per session 49 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,672 The whole file, excluding the scripts and references it only reads on demand.
Security scan C 1 finding. Scan, not verified.
Origin unknown No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.00049 $0.01672
Opus 5 $0.00024 $0.00836
Sonnet 5 $0.00010 $0.00334
Haiku 4.5 $0.00005 $0.00167

Measured 2d ago against content hash 83bebdcf1f01, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade C, and why

password-attack-agent scanned grade C with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Reaches for credential fileshighPrivilege escalation

SSH keys, cloud credentials, git-credentials, .npmrc, /etc/shadow: reading these is how a config file becomes a credential leak.

- SAM hives, /etc/shadow
plugins/pentest/agents/password-attack-agent.md · 128 lines

The source is not reproduced here

No licence file

A repository with no LICENSE is all rights reserved by default, so the body is not copied here. The metadata, the measurements and the link are.

Read it on GitHub

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 128 lines · 49 tokens per session scan C 83bebdcf1f01

Subscribe to this mod's changes

password-attack-agent is an agent published in the GitHub repository humaidhahm/opencode-pentester (23 stars, last pushed 6d ago), with no licence file. It adds 49 tokens to every session and 1,672 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it C with 1 finding (reaches for credential files). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.