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SKILL verified Apache-2.0 Self-run

Storage

skill-beriberikix-zephyr-agent-skills-storage · by beriberikix

Storage management for Zephyr RTOS. Covers Non-Volatile Storage (NVS) for persistent settings, flash partition management in Devicetree, and runtime flash layout access. Trigger when implementing persistent data storage, managing flash wear leveling, or configuring device partitions.

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Install

$ agentstack add skill-beriberikix-zephyr-agent-skills-storage

✓ 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

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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 Storage

Implement reliable persistent data handling using Zephyr's storage subsystem and flash management utilities.

Core Workflows

1. NVS Storage

Utilize Non-Volatile Storage (NVS) for efficient, wear-leveled data persistence.

  • Reference: [nvsstorage.md](references/nvsstorage.md)
  • Key Tools: nvs_mount(), nvs_read(), nvs_write().

2. Flash Management

Configure and manage flash partitions and hardware page layouts.

  • Reference: [flashmanagement.md](references/flashmanagement.md)
  • Key Tools: fixed-partitions, FLASH_MAP, flash_get_page_info_by_offs().

Quick Start (NVS Write)

#include 

void save_data(struct nvs_fs *fs, uint16_t id, void *data, size_t len) {
    nvs_write(fs, id, data, len);
}

Professional Patterns (Reliability)

  • Settings Integration: Use NVS as the backend for the settings subsystem for a standard key-value configuration experience.
  • Collision Prevention: Define NVS Entry IDs in a centralized header file to prevent accidental overwrites across modules.
  • Runtime Layout Checks: Always query the flash controller for page sizes (flash_get_page_layout) rather than assuming hardcoded sector sizes.

Automation Tools

  • [nvsidlint.py](scripts/nvsidlint.py): Detect duplicate NVS_ID_* macro values across source/header files.

Examples & Templates

  • [partitionoverlaytemplate.overlay](assets/partitionoverlaytemplate.overlay): Starter fixed-partitions overlay for app + storage.

Validation Checklist

  • [ ] nvs_mount() succeeds on boot for the configured storage partition.
  • [ ] Written values survive reset and read back with matching length and content.
  • [ ] Partition layout in DTS matches runtime flash-map queries.
  • [ ] Repeated write cycles do not produce mount/read corruption errors.

Resources

  • [References](references/):
  • nvs_storage.md: Using NVS for data blobs and integers.
  • flash_management.md: Devicetree partitions and page information.
  • [Scripts](scripts/):
  • nvs_id_lint.py: Duplicate ID detector for NVS namespaces.
  • [Assets](assets/):
  • partition_overlay_template.overlay: Flash partitioning 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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