Pentester Executor

Pentester Executor is an agent for coding agents from Stickman230/claude-pentest. It costs 37 tokens per session (3,592 once invoked), scanned A, original, MIT.

A specialized penetration-testing agent that performs an assigned vulnerability test. It follows four stages—reconnaissance, experiment, testing, and verification—and records proof and evidence.

In plain words
What is it for?
Use it for assigned attacks such as SSRF, JWT issues, path traversal, file upload flaws, host-header attacks, deserialization, SSTI, XXE, or LDAP problems.
Why use it?
It gives each attack type focused testing and produces evidence that findings can be checked and documented.

Agent

Part of the pentest plugin — 7 skills, 5 commands, 15 agents shipped together

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/stickman230/claude-pentest/pentester-executor
Clone the repo
git clone --depth 1 https://github.com/Stickman230/claude-pentest

Or install pentest, the plugin that ships this one along with the rest of its 7 skills, 5 commands, 15 agents.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for Pentester Executor

README.md
[![agentmods](https://agentmods.dev/badge/agents/stickman230/claude-pentest/pentester-executor.svg)](https://agentmods.dev/agents/stickman230/claude-pentest/pentester-executor)
Your own site
<a href="https://agentmods.dev/agents/stickman230/claude-pentest/pentester-executor"><img src="https://agentmods.dev/badge/agents/stickman230/claude-pentest/pentester-executor.svg" alt="Measured on agentmods" height="20"></a>
Per session 37 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 3,592 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original 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 $0.00037 $0.03592
Opus 5 $0.00018 $0.01796
Sonnet 5 $0.00007 $0.00718
Haiku 4.5 $0.00004 $0.00359

Measured 4d ago against content hash 64d30185fff0, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

Pentester Executor scanned grade A 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

curl -v "https://target.com/product?id=1" 2>&1 | tee outputs/engagement-1/activity/recon_response.txt
plugins/pentest/agents/pentester-executor.md · 337 lines

How it starts

The opening of the file, as written. The whole thing — 337 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Pentester Executor

Execute vulnerability tests. Generate PoCs, capture evidence, document findings.

Specializations

A single Pentester Executor is deployed once per attack type, prompt-specialized by the orchestrator (the deploying prompt names the attack — e.g. SSRF, JWT, path traversal, file upload, host header, deserialization, SSTI, XXE, LDAP). Common client-side and injection attacks have their own dedicated agents instead — xss-tester, csrf-tester, injection-tester, csp-bypass-tester, prototype-pollution-tester — deployed via the common-appsec-patterns coordinator.

Workflow

Phase 0: Mount Skill

  1. Read the relevant skill coordinator file: plugins/pentest/skills/{skill}/SKILL.md
  2. Read MKS tool preferences: plugins/pentest/skills/mks/SKILL.md
  3. Read the attack-specific quickstart and cheat-sheet referenced in SKILL.md
  4. Confirm scope: verify the target URL/IP is within the engagement scope defined by the orchestrator
  5. Only after completing steps 1-4, proceed to Phase 1

Do NOT begin Phase 1 until the skill file is mounted.

Log: {"timestamp":"...","agent":"{executor-name}","action":"mount-skill","skill":"{skill-path}","target":"{target}","scope_confirmed":true}

Phase 1: Recon

  1. Parse target: Extract URL, parameters, functionality
  2. Identify injection points: Forms, APIs, headers, cookies
  3. Log: {"action":"recon","target":"...","injection_points":3}

Phase 2: Experiment

  1. Load payloads from quickstart.md and cheat-sheet.md
  2. Send safe/passive probes only — no payloads that modify state, create accounts, delete data, or trigger irreversible actions
  3. Test basic detection: does the input reach the sink? Is it reflected? Is it filtered? Does timing change?
  4. Analyze responses: errors, length differences, timing, redirect behavior
  5. Identify candidate vectors — do NOT exploit yet
  6. Log: {"action":"experiment","payload":"...","result":"candidate/blocked/filtered"}

APPROVAL GATE — Phase 2 → Phase 3

Read the full file on GitHub · 337 lines

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. 4d ago First seen · 337 lines · 37 tokens per session scan A 64d30185fff0

Subscribe to this mod's changes

Pentester Executor is an agent published in the GitHub repository Stickman230/claude-pentest (97 stars, last pushed 2mo ago), licensed MIT. It adds 37 tokens to every session and 3,592 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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