A professional toolset for AI agents to discover, inspect, and safely write to NFC tags using libnfc and nfc-utils.
Install & Download
1. ClawHub CLI
The fastest way to install a skill directly from the registry.
npx clawhub@latest install nfc-tools
2. Manual Installation
Copy the skill folder to one of these locations
~/.openclaw/skills/ <project>/skills/ Priority: Workspace > Local > Bundled
3. Prompt Installation
Copy this prompt to OpenClaw to install it automatically.
Help me install nfc-tools using Clawhub. If Clawhub is not installed, install it first (npm i -g clawhub).
Prefer to download?
Get the raw skill files in a ZIP archive.
What is NFC Tools?
The nfc-tools skill provides a robust framework for interacting with Near Field Communication hardware through AI agents. By leveraging the power of libnfc and nfc-utils, this skill enables seamless integration with devices like the PN532 or ACR122. It prioritizes security and data integrity, ensuring that sensitive tag identifiers are redacted by default while providing a structured approach to tag discovery and manipulation.
Whether you are managing MIFARE Classic sectors or NDEF payloads, these Openclaw Skills ensure a reliable bridge between digital logic and physical tag interaction. The skill includes built-in safety mechanisms and privacy-first logging to protect sensitive tag metadata during development and deployment.
NFC Tools Use Cases
- Automating batch NFC tag discovery and hardware enumeration.
- Inspecting NDEF payloads and MIFARE block layouts for data analysis.
- Safely updating or writing new data to ISO14443A/B compliant tags.
- Securely formatting or resetting tags with multi-stage confirmation gates.
- Planning NFC data structures offline when hardware is temporarily unavailable.
How NFC Tools Works
- Validate the environment by checking for libnfc installation and active hardware readers via dedicated sanity scripts.
- Perform discovery using nfc-poll to capture signal strength and technology types like MIFARE or ISO14443.
- Execute non-destructive read operations to generate binary or hex dumps for user review and reasoning.
- Initiate safety-critical write or format workflows that require specific uppercase user confirmation strings.
- Verify all modifications by re-reading the tag to ensure the physical data matches the intended payload.
NFC Tools Setup
To begin using these Openclaw Skills, ensure libnfc and nfc-utils are installed on your host system and permissions are correctly configured via udev rules. First, confirm your hardware connection:
# Run the sanity check script
./scripts/check-nfc.sh
# List connected readers
nfc-list
Adjust your environment variables if using multiple readers (e.g., export LIBNFC_DEVICE="pn532_uart:/dev/ttyACM0").
NFC Tools Data Schema & Taxonomy
| Component | Description |
|---|---|
| Binary Dumps | Raw hex/binary exports (.ul, .mfd) created before any write operation. |
| NDEF Payloads | Validated .ndef files generated via ndef-tool for structured data storage. |
| Metadata | Redacted UID tracking, signal strength (RSSI), and manufacturer details. |
| Confirmation Logs | Audit trail of explicit user authorization for destructive actions. |
NFC Tools Advanced Features
- Automatic UID redaction to maintain privacy across logs and user interfaces.
- Multi-reader support with dynamic connection string selection via Openclaw Skills.
- Safety-first confirmation gates for all destructive write and format operations.
- Offline planning mode using fallback templates when physical readers are disconnected.
- Verbose tag inspection including sector key verification and block layout mapping.
SKILL.md
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