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SKILL verified Apache-2.0 Self-run

Connectivity Ip

skill-beriberikix-zephyr-agent-skills-connectivity-ip · by beriberikix

IP networking fundamentals for Zephyr RTOS. Covers IoT protocol selection (LwM2M, CoAP, MQTT), IP stack configuration and trimming (IPv4/IPv6, UDP/TCP), and professional SDK integration as Zephyr modules using West manifests. Trigger when building cloud-connected applications, optimizing network memory usage, or integrating external cloud SDKs.

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Install

$ agentstack add skill-beriberikix-zephyr-agent-skills-connectivity-ip

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

✓ Security review passed
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Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

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About

Zephyr Connectivity: IP Networking

Build memory-efficient, cloud-connected applications using Zephyr's modular IP stack and industry-standard IoT protocols.

Core Workflows

1. Protocol Selection

Choose the right protocol (LwM2M, CoAP, MQTT) based on your device's power and management needs.

  • Reference: [protocolselection.md](references/protocolselection.md)
  • Key Tools: CONFIG_COAP, CONFIG_LWM2M, CONFIG_MQTT_LIB.

2. IP Stack Configuration

Tune the networking stack to save Flash and RAM while ensuring reliable communication.

  • Reference: [ipstackconfig.md](references/ipstackconfig.md)
  • Key Tools: CONFIG_NET_IPV4, CONFIG_NET_BUF_RX_COUNT, DNS resolver.

3. SDK & Module Integration

Integrate external cloud SDKs and libraries as first-class Zephyr modules.

  • Reference: [sdkmoduleintegration.md](references/sdkmoduleintegration.md)
  • Key Tools: west.yml, zephyr/module.yml, name-allowlist.

Quick Start (Kconfig for CoAP)

# Minimal stack for CoAP over UDP
CONFIG_NETWORKING=y
CONFIG_NET_UDP=y
CONFIG_NET_IPV4=y
CONFIG_COAP=y
CONFIG_DNS_RESOLVER=y

Professional Patterns (Cloud Connectivity)

  • Extreme Trimming: Disable TCP and IPv6 if not strictly required to reclaim 10KB+ of RAM.
  • Manifest Control: Use an allow-list in your west.yml to prevent cloning hundreds of megabytes of unused vendor modules.
  • Async DNS: Use the asynchronous DNS resolver to prevent blocking the main application thread during host lookup.

Automation Tools

  • [netconfigaudit.py](scripts/netconfigaudit.py): Audit prj.conf networking flags for protocol/profile consistency.

Examples & Templates

  • [prjminimalcoap.conf](assets/prjminimalcoap.conf): Starter footprint-trimmed CoAP-over-UDP configuration.

Validation Checklist

  • [ ] Device obtains network connectivity and resolves DNS for the configured backend.
  • [ ] Selected protocol path (CoAP, MQTT, or LwM2M) completes connect and message exchange.
  • [ ] Disabled stack features (for example IPv6 or TCP) are absent from final .config when trimmed.
  • [ ] RAM/Flash footprint meets the expected optimization target after stack tuning.

Resources

  • [References](references/):
  • protocol_selection.md: LwM2M vs CoAP vs MQTT.
  • ip_stack_config.md: Optimizing buffers and disabling unused protocols.
  • sdk_module_integration.md: West manifest management and SDK modules.
  • [Scripts](scripts/):
  • net_config_audit.py: Quick audit helper for IP stack Kconfig flags.
  • [Assets](assets/):
  • prj_minimal_coap.conf: Baseline minimal IP profile template.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.

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