Agent skill

Traffic Capture

by samugit83 in samugit83/redamon

Working on the HTTP capture proxy and its replay/fuzz path: the egress guard that stops the proxy becoming an SSRF pivot, why it checks the resolved IP, and keeping capture off the scan's critical…

MITAuto-check passedSecurity

Install Traffic Capture

skills CLI
$ npx skills add samugit83/redamon --skill traffic-capture -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI
$ gh skill install samugit83/redamon traffic-capture --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy
$ git clone --depth 1 https://github.com/samugit83/redamon.git skills-src && mkdir -p .claude/skills && cp -r skills-src/skills/traffic-capture .claude/skills/traffic-capture && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Facts

Skill name
traffic-capture
GitHub stars
3k
Token cost
~771 tokens
SKILL.md length
246 words
Files
1
Skills in repo
15
Repo updated
First seen
Licence
MIT

At a glance

Working on the HTTP capture proxy and its replay/fuzz path: the egress guard that stops the proxy becoming an SSRF pivot, why it checks the resolved IP, and keeping capture off the scan's critical…

  • Tasks that involve Penetration testing
  • SKILL.md covers When to Use, Critical Rules, The capture pipeline and Commands, plus 1 more section
  • Calls docker
  • Tasks that involve Web application vulnerabilities

What it does

Traffic Capture is an agent skill from samugit83/redamon. Working on the HTTP capture proxy and its replay/fuzz path: the egress guard that stops the proxy becoming an SSRF pivot, why it checks the resolved IP, and keeping capture off the scan's critical path. Trigger: editing scanners/captureproxy/ (captureaddon.py, egress.py, ingestworker.py); adding a forward/replay/fuzz path; changing EgressPolicy or the internal denylist; wiring an agent tool that replays captured traffic.

Its SKILL.md is about 770 tokens, which your agent loads only when the skill is triggered. It is a single SKILL.md file with no bundled scripts.

It sits in Security, covering Penetration testing and Web application vulnerabilities. The repository describes itself as: Open-source, self-hosted AI penetration testing framework: maps your attack surface into a graph, autonomously exploits it from a Kali sandbox with human approval gates, and… The licence is MIT.

When your agent uses it

  • Tasks that involve Penetration testing
  • Tasks that involve Web application vulnerabilities

Example prompts

  • “/traffic-capture”

Requirements

  • Docker

What it can do on your machine

Read from SKILL.md and the folder at commit 5dd993c. It shows what the files ask for, not the result of running them.

  • Tool permissions

    Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.

    From allowed-tools in the SKILL.md frontmatter.

  • Runs code

    Shell commands in SKILL.md call:

    • docker

    From the folder's file list and the shell code blocks in SKILL.md.

  • Network

    No URLs in SKILL.md. Its commands use docker, which can reach the network depending on how they are called.

    From URLs in SKILL.md, links to its own repository left out.

  • Credentials

    Names no API keys, tokens, secrets or passwords.

    From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Traffic Capture loads about 771 tokens when it runs. Until then it costs about 111 tokens; SKILL.md has 246 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it
~111
When it runs · the whole SKILL.md, loaded when a task matches
~771

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from samugit83/redamon at commit 5dd993c, republished under its MIT licence (© samugit83). 246 words, ~771 tokens.

Download SKILL.mdSave it as .claude/skills/traffic-capture/SKILL.md (or your agent's skills folder).
name
traffic-capture
description
Working on the HTTP capture proxy and its replay/fuzz path: the egress guard that stops the proxy becoming an SSRF pivot, why it checks the resolved IP, and keeping capture off the scan's critical path. Trigger: editing scanners/capture_proxy/ (capture_addon.py, egress.py, ingest_worker.py); adding a forward/replay/fuzz path; changing EgressPolicy or the internal denylist; wiring an agent tool that replays captured traffic.
license
MIT
metadata.author
redamon
metadata.version
1.0.0
metadata.scope
capture_proxy
metadata.auto_invoke
Editing the capture proxy, egress guard, or replay/fuzz path

When to Use

  • Changing how the proxy forwards, captures, ingests, or replays traffic.

The one-line "route every egress through the guard" rule is in the capture_proxy AGENTS.md CRITICAL RULES; this skill is the mechanism.


Critical Rules

  • NEVER match the internal denylist on the hostname alone. The guard denies on the resolved IP (RFC1918 and friends), because a hostname that resolves to an internal address (or re-resolves after a check) is the SSRF/DNS-rebinding case. See scanners/capture_proxy/egress.py (the block conditions operate on the resolved IP).
  • NEVER build a replay/fuzz target from unvalidated LLM output and send it straight out. The replay path is a new egress path; it must pass the same EgressPolicy guard as captured traffic, or the agent can be steered into an internal pivot. Args must not reach the wire un-guarded.
  • NEVER remove a block condition to "make replay work". Each condition is individually toggleable via EgressPolicy (surfaced in settings); loosen it there, per-condition, not by deleting the check.
  • ALWAYS keep capture and ingest off the scan's critical path. Capture writes an append-only spool; a separate worker tails it into Postgres (scanners/capture_proxy/ingest_worker.py). That decoupling is deliberate - capture must never block or slow the scan it observes.

The capture pipeline

StageFileNote
interceptcapture_addon.pymitmproxy addon; request/response hooks
egress guardegress.pyresolved-IP denylist + EgressPolicy toggles; the SSRF backstop
ingestingest_worker.pytails the spool -> Postgres; off the scan path

Commands

bash
docker compose --profile tools build capture-proxy    # image rebuild (Dockerfile change)
./redamon.sh test unit                                # capture_proxy section

Resources

© samugit83, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file

Files

Just SKILL.md in skills/traffic-capture of samugit83/redamon.

Open the folder on GitHubat commit 5dd993c

Compare with similar skills

Traffic Capture next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Traffic Capture compared with similar skills
SkillStarsUsed inTokensAuto-checkLicenceRepo updated
Traffic Capture this skillsamugit83/redamon3k—~771Automated safety check: PassMIT
Strix Code Vulnerability Scanusestrix/strix67k—~1.1kAutomated safety check: PassApache-2.0
Code Audit3stoneBrother/code-audit8921 repos~2.7kAutomated safety check: PassNone
Fix Strix Security Findingsusestrix/strix67k—~1.5kAutomated safety check: PassApache-2.0
Wooyun Legacytanweai/wooyun-legacy1.8k—~1.9kAutomated safety check: PassCustom licence
OWASP Top 10 Testing with Strixusestrix/strix67k—~1.6kAutomated safety check: PassApache-2.0

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Categories

Questions about Traffic Capture

What does Traffic Capture do?

Working on the HTTP capture proxy and its replay/fuzz path: the egress guard that stops the proxy becoming an SSRF pivot, why it checks the resolved IP, and keeping capture off the scan's critical…. Traffic Capture is an agent skill from samugit83/redamon. Working on the HTTP capture proxy and its replay/fuzz path: the egress guard that stops the proxy becoming an SSRF pivot, why it checks the resolved IP, and keeping capture off the scan's critical path.

When should I use Traffic Capture?

Traffic Capture fits situations like: tasks that involve Penetration testing; tasks that involve Web application vulnerabilities.

How do I install Traffic Capture in Claude Code?

Run `npx skills add samugit83/redamon --skill traffic-capture -a claude-code`. Or copy the skill folder (skills/traffic-capture in samugit83/redamon) into .claude/skills/traffic-capture in your project. Claude Code loads it when a task matches its description.

How do I install Traffic Capture in Codex?

Run `npx skills add samugit83/redamon --skill traffic-capture -a codex`. Or copy the skill folder (skills/traffic-capture in samugit83/redamon) into .agents/skills/traffic-capture in your project. Codex loads it when a task matches its description.

Can I use Traffic Capture in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add samugit83/redamon --skill traffic-capture -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/traffic-capture, .gemini/skills/traffic-capture, .github/skills/traffic-capture and .opencode/skills/traffic-capture in your project.

What does Traffic Capture need to run?

Going by SKILL.md and its folder, Traffic Capture needs the command-line tools its instructions call (docker). Our summary lists: Docker.

Does Traffic Capture access the network?

SKILL.md contains no URLs. Its commands use docker, which can reach the network depending on how they are called. This is read from the text; nothing was executed.

Is Traffic Capture safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Traffic Capture use?

Traffic Capture is published under the MIT licence (declared in SKILL.md). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Traffic Capture use?

About 771 tokens (SKILL.md is roughly 3.1k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Traffic Capture?

Skills that share tags, products or a category with Traffic Capture: Strix Code Vulnerability Scan (usestrix/strix, 67k stars), Code Audit (3stoneBrother/code-audit, 892 stars), Fix Strix Security Findings (usestrix/strix, 67k stars) and Wooyun Legacy (tanweai/wooyun-legacy, 1.8k stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Traffic Capture?

samugit83 (a GitHub user) maintains it in samugit83/redamon, which has 2,978 GitHub stars. The repository holds 15 skills in this directory. The repository was last updated on October 8, 2026.

Source: samugit83/redamon on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.