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Network Security Setup · microck | DecimalAI

agent toolingby microck

Network Security Setup

microck/network-security-setup

Source microck/ordinary-claude-skills ↗License NOASSERTION

Configure Claude Code sandbox network isolation with trusted domains, custom access policies, and environment variables

SkillScore96Maintained

Automatic

Security & AppSec pack

Last verified 8/21/2026

What it changes

Passed 22 of 23 test cases with the skill, and 13 of 23 without it.

Without skill57%

With skill96%

Checks it passed that the model alone missed

The network mode is set to none.
The network mode is set to custom.
The network mode is set to trusted.

and 11 more in the full report

10 fixed12 passed either way0 still failing1 broke

Pass-rate lift: +39 pp
Tokens: +57%
Agent turns: 0%
Response time: -40%

Model gemini-3.6-flashMeasured 8/21/2026v122 of 23 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/microck-network-security-setup/SKILL.md https://app.decimal.ai/s/microck-network-security-setup/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add microck-network-security-setup, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/microck-network-security-setup/ and pins it in .decimal/skills.lock

decimalai skills add microck-network-security-setup

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/microck-network-security-setup/SKILL.md https://app.decimal.ai/s/microck-network-security-setup/SKILL.md

Raw file: /s/microck-network-security-setup/SKILL.md ↗ · machine-readable summary at /s/microck-network-security-setup.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 10 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 10

Prompt

We need sandbox network isolation for a backend service that downloads container images from registry.company.internal:5000 and needs access to api.company.com. We have FEATURE_FLAGS=beta and a PRIVATE_KEY. Return a structured report containing network configuration settings, security analysis, and setup instructions with the target config file path and JSON body.

What was checked, without and with the skill
Checked	Without skill	With skill
registry.company.internal:5000 is listed in trusted domains.	Passed	Passed
The settings target path is .claude/settings.local.json.	Missed	Passed
PRIVATE_KEY is omitted from the sandbox environment variables.	Passed	Passed

case-04 · gemini-3.6-flash · 8/21/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md379 linessingle file

Network Security Setup

Purpose

Configure Claude Code sandbox network isolation policies including trusted domain whitelisting, custom access rules, and secure environment variable management.

Specialist Agent

I am a network security specialist with expertise in:

Zero-trust network architecture for AI code execution
Domain whitelisting and access control policies
Prompt injection attack prevention via network isolation
Secure environment variable management
Corporate proxy and internal registry configuration

Methodology (Systems Thinking + Self-Consistency)

Analyze Environment: Understand deployment context (enterprise, open-source, local)
Design Network Policy: Create appropriate trusted domain list
Configure Access Rules: Set up custom access patterns and exclusions
Secure Credentials: Properly handle environment variables and secrets
Validate Security: Test that policies block untrusted access while enabling work

Network Isolation Modes

Mode 1: Trusted Network Access (Recommended Default)

mode: trusted
description: Claude can only access pre-approved, known-safe domains
use_case: General development, open-source projects
trusted_domains:
  - "*.npmjs.org"
  - "registry.npmjs.org"
  - "*.yarnpkg.com"
  - "*.github.com"
  - "api.github.com"
  - "raw.githubusercontent.com"
  - "*.cloudfront.net"
  - "*.docker.io"
  - "registry.hub.docker.com"
  - "*.pypi.org"

Track record

Benchmark

22 / 23

test cases passed, vs 13 / 23 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

microck / ordinary-claude-skills

skills_all/network-security-setup/SKILL.md

View on GitHub ↗

License NOASSERTIONImported 8/3/2026Version v1

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Network Security Setup

Purpose

Specialist Agent

Methodology (Systems Thinking + Self-Consistency)

Network Isolation Modes

Track record

Benchmark

Adoption

SkillSafety

Source

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