bankrbot/ens-primary-name
ens-primary-name/SKILL.md
Set your primary ENS name on Base and other L2s. Use when user wants to set their ENS name, configure reverse resolution, set primary name, or make their address resolve to an ENS name. Supports Base, Arbitrum, Optimism, and Ethereum mainnet.
$ install --global
skillsauthnpx skillsauth add bankrbot/skills ens-primary-nameInstall this skill globally with one command. Works with Claude Code, Cursor, and Windsurf.
Security Scan Results
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TrivyContainer and dependency vulnerability scanner
95%
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SemgrepStatic code analysis for vulnerabilities
95%
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mcp-scan (Snyk)Model Context Protocol security validation
95%
Skipped
Snyk (dep)Open source security scanning
50%
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Socket.devSupply chain security analysis
50%
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VirusTotalMulti-engine malware detection
50%
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CrowdStrikeAdvanced threat intelligence
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Last scanned: Apr 20, 2026, 3:08 AM11.7s4 files scanned
SKILL.md
- name:
- ens-primary-name
- description:
- Set your primary ENS name on Base and other L2s. Use when user wants to set their ENS name, configure reverse resolution, set primary name, or make their address resolve to an ENS name. Supports Base, Arbitrum, Optimism, and Ethereum mainnet.
ENS Primary Name
Set your primary ENS name on Base and other L2 chains via the ENS Reverse Registrar.
A primary name creates a bi-directional link:
- Forward:
name.eth→0x1234...(set in ENS resolver) - Reverse:
0x1234...→name.eth(set via this skill)
Requirements
Required: Bankr CLI
This skill requires the Bankr CLI for transaction signing:
bun install -g @bankr/cli
bankr login
The scripts use bankr agent to submit transactions like:
Submit this transaction: {"to": "0x...", "data": "0x...", "value": "0", "chainId": 8453}
Required: Node.js
Scripts use Node.js with viem for ENS namehash calculation and ABI encoding.
npm install -g viem
Quick Start
# Set primary name on Base
./scripts/set-primary.sh myname.eth
# Set on specific chain
./scripts/set-primary.sh myname.eth arbitrum
# Verify primary name is set
./scripts/verify-primary.sh 0x1234... base
# Set avatar (L1 only)
./scripts/set-avatar.sh myname.eth https://example.com/avatar.png
Supported Chains
| Chain | Reverse Registrar |
|-------|-------------------|
| Base | 0x0000000000D8e504002cC26E3Ec46D81971C1664 |
| Arbitrum | 0x0000000000D8e504002cC26E3Ec46D81971C1664 |
| Optimism | 0x0000000000D8e504002cC26E3Ec46D81971C1664 |
| Ethereum | 0x283F227c4Bd38ecE252C4Ae7ECE650B0e913f1f9 |
Prerequisites
- Own or control an ENS name - The name must be registered
- Forward resolution configured - The name must resolve to your address
- Native tokens for gas - ETH on the target chain
How It Works
- Checks forward resolution exists (name → address)
- Warns if chain-specific address is not set
- Encodes
setName(string)calldata - Submits transaction to the Reverse Registrar
- Verifies the primary name is correctly set
Verification
The skill automatically verifies after setting. You can also verify manually:
./scripts/verify-primary.sh 0xYourAddress base
Output:
✅ Reverse record: 0x1234... → myname.eth
✅ Forward resolution: myname.eth → 0x1234...
🎉 PRIMARY NAME VERIFIED: myname.eth
Setting Avatars
# Set avatar (requires L1 transaction + ETH for gas)
./scripts/set-avatar.sh myname.eth https://example.com/avatar.png
Supported avatar formats:
- HTTPS:
https://example.com/image.png - IPFS:
ipfs://QmHash - NFT:
eip155:1/erc721:0xbc4ca.../1234
Note: Avatars are text records stored on Ethereum mainnet. The script automatically looks up the resolver for your ENS name (works with both public and custom resolvers).
Troubleshooting
| Issue | Solution |
|-------|----------|
| "Transaction reverted" | Ensure the ENS name resolves to your address |
| "Name not showing" | Forward resolution may not be set for that chain's cointype |
| "Not authorized" | You must call from the address the name resolves to |
| "Bankr CLI not found" | Install with bun install -g @bankr/cli && bankr login |
| "Chain-specific address not set" | Set the address for the target chain via app.ens.domains |
| "Could not find resolver" | Ensure the ENS name exists and has a resolver set |
Links
- ENS Docs: https://docs.ens.domains/web/reverse
- ENS App: https://app.ens.domains
- Primary Names UI: https://primary.ens.domains
- Bankr CLI: https://www.npmjs.com/package/@bankr/cli
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