conducting-man-in-the-middle-attack-simulation

conducting-man-in-the-middle-attack-simulation is a skill for Claude Code, Codex from RobotFlow-Labs/skills-repo. It costs 53 tokens per session (2,878 once invoked), scanned D, original, no licence file.

An authorized security test that places a tester between two systems to inspect or change network traffic. It uses common tools to check whether encryption and certificate checks work correctly.

In plain words
What is it for?
Testing encrypted connections, certificate validation, and network monitoring in a controlled environment.
Why use it?
It helps find cases where attackers could read or alter communications without being detected.

Skill for Claude CodeCodex

Which agent this was written for is unclear — body not stored (licence); the path alone says nothing.

Good fit Testing encrypted connections, certificate validation, and network monitoring in a controlled environment.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/robotflow-labs/skills-repo/conducting-man-in-the-middle-attack-simulation
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.

Any agent
npx skills add RobotFlow-Labs/skills-repo --skill conducting-man-in-the-middle-attack-simulation
Clone the repo
git clone --depth 1 https://github.com/RobotFlow-Labs/skills-repo

Made for: Claude Code, Codex.

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 conducting-man-in-the-middle-attack-simulation

README.md
[![agentmods](https://agentmods.dev/badge/skills/robotflow-labs/skills-repo/conducting-man-in-the-middle-attack-simulation/github.svg)](https://agentmods.dev/skills/robotflow-labs/skills-repo/conducting-man-in-the-middle-attack-simulation)
Your own site
<a href="https://agentmods.dev/skills/robotflow-labs/skills-repo/conducting-man-in-the-middle-attack-simulation"><img src="https://agentmods.dev/badge/skills/robotflow-labs/skills-repo/conducting-man-in-the-middle-attack-simulation/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for conducting-man-in-the-middle-attack-simulation

Your own site · 80×15
<a href="https://agentmods.dev/skills/robotflow-labs/skills-repo/conducting-man-in-the-middle-attack-simulation"><img src="https://agentmods.dev/badge/skills/robotflow-labs/skills-repo/conducting-man-in-the-middle-attack-simulation.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 53 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,878 The whole file, excluding the scripts and references it only reads on demand.
Security scan D 3 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00053 $0.02878
Opus 5 $0.00026 $0.01439
Sonnet 5 $0.00011 $0.00576
Haiku 4.5 $0.00005 $0.00288

Measured 9d ago against content hash dec22c88c548, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-12, from the pricing page.

Security

Grade D, and why

conducting-man-in-the-middle-attack-simulation scanned grade D with 3 findings 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 9d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/agent.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Harvests environment variableshighData exfiltration

Enumerating or grepping the environment for keys collects credentials unrelated to what the mod says it does.

"""mitmproxy script to extract credentials from intercepted traffic."""

Asks for rootmediumPrivilege escalation

A mod that escalates privileges can change anything on the machine, not only the project.

sudo sysctl -w net.ipv4.ip_forward=1

Makes network callslowCapability

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

curl -v -k -L http://example.com 2>&1 | grep -i "strict-transport-security"
skills/conducting-man-in-the-middle-attack-simulation/SKILL.md · 281 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

Files

What ships with it

3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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. 9d ago First seen · 281 lines · 53 tokens per session scan D dec22c88c548

Subscribe to this mod's changes

conducting-man-in-the-middle-attack-simulation is a skill published in the GitHub repository RobotFlow-Labs/skills-repo (2 stars, last pushed 5mo ago), with no licence file. It adds 53 tokens to every session and 2,878 once invoked, about $0.0003 per session on Opus 5. A static security scan graded it D with 3 findings (harvests environment variables, asks for root, makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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