test-network-services

test-network-services is a skill for Claude Code, Codex from gaelic-ghost/socket. It costs 45 tokens per session (376 once invoked), scanned A, original, Apache-2.0.

A guide for checking authorized network services to see what is reachable, what is running, and how it is configured. It separates discovery from deeper checks such as authentication and vulnerability validation.

In plain words
What is it for?
Use it to assess hosts and ranges, ports, TLS certificates, service versions, access controls, management interfaces, segmentation, and network configuration.
Why use it?
It reduces false conclusions caused by trusting port numbers or automated fingerprints without confirming the actual service and exposure.

Skill for Claude CodeCodex

Part of the cybersecurity-skills plugin — 31 skills 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 skills/gaelic-ghost/socket/test-network-services
Any agent
npx skills add gaelic-ghost/socket --skill test-network-services
Clone the repo
git clone --depth 1 https://github.com/gaelic-ghost/socket

Made for: Claude Code, Codex.

Or install cybersecurity-skills, the plugin that ships this one along with the rest of its 31 skills.

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 test-network-services

README.md
[![agentmods](https://agentmods.dev/badge/skills/gaelic-ghost/socket/test-network-services.svg)](https://agentmods.dev/skills/gaelic-ghost/socket/test-network-services)
Your own site
<a href="https://agentmods.dev/skills/gaelic-ghost/socket/test-network-services"><img src="https://agentmods.dev/badge/skills/gaelic-ghost/socket/test-network-services.svg" alt="Measured on agentmods" height="20"></a>
Per session 45 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 376 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. 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 $0.00045 $0.00376
Opus 5 $0.00023 $0.00188
Sonnet 5 $0.00009 $0.00075
Haiku 4.5 $0.00005 $0.00038

Measured yesterday against content hash 6819529e09b4, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

test-network-services scanned grade A with 0 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 yesterday.

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.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

plugins/cybersecurity-skills/skills/test-network-services/SKILL.md · 33 lines

What it actually says

Test Network Services

Overview

Establish what is actually listening and reachable before making vulnerability claims. Keep discovery, identification, configuration review, authentication tests, and exploit validation as separate authorized levels.

Read references/network-test-levels.md before selecting tools or scan intensity.

Workflow

  1. Load approved targets/exclusions, source addresses, network path, time/rate limits, credentials, and contacts.
  2. Resolve target identity.
    • Record DNS, addresses, cloud/CDN/load-balancer ownership, environment, and routes; stop on third-party or out-of-scope resolution.
  3. Discover conservatively.
    • Start with known assets and low-rate reachability/port checks; record tool/version/options, packet source, loss, and filtering.
  4. Identify services.
    • Validate protocol, TLS/certificate, banner/version, authentication exposure, and application behavior instead of trusting port numbers or one fingerprint.
  5. Assess configuration and exposure.
    • Review unnecessary listeners, network boundary, encryption, weak/default access, anonymous behavior, management interfaces, and segmentation from approved vantage points.
  6. Validate vulnerability candidates.
    • Review scanner/template logic and use the smallest protocol-aware proof; route protocol mechanics to network-protocol-skills.
  7. Stop and clean up.
    • Halt on instability, rate-limit distress, unexpected sensitive data, third parties, or scope drift; close sessions and remove temporary access.

Output

Return target resolution, discovery coverage, validated services, configuration/exposure observations, vulnerability candidates/validation, negative results, impact, and cleanup.

Files

What ships with it

2 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. yesterday First seen · 33 lines · 45 tokens per session scan A 6819529e09b4

Subscribe to this mod's changes

test-network-services is a skill published in the GitHub repository gaelic-ghost/socket (7 stars, last pushed 9d ago), licensed Apache-2.0. It adds 45 tokens to every session and 376 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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