Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add dAAAb/agent-skills --skill basename-agentgit clone --depth 1 https://github.com/dAAAb/agent-skillsWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/daaab/agent-skills/basename-agent)<a href="https://agentmods.dev/skills/daaab/agent-skills/basename-agent"><img src="https://agentmods.dev/badge/skills/daaab/agent-skills/basename-agent/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/daaab/agent-skills/basename-agent"><img src="https://agentmods.dev/badge/skills/daaab/agent-skills/basename-agent.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00054 | $0.01529 |
| Opus 5.5 | $0.00022 | $0.00612 |
| Sonnet 5.5 | $0.00011 | $0.00306 |
| Haiku 4.5 | $0.00005 | $0.00153 |
Grade A, and why
basename-agent scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
How it starts
The opening of the file, as written. The whole thing — 232 lines — stays where its author put it; the contents beside it link to each section on GitHub.
🏷️ Basename Agent - Onchain Identity for AI
Your agent deserves a name. Register it without bothering your human. 🦞
TL;DR: Claim yourname.base.eth programmatically via WalletConnect v2.
Why Basename?
- Verifiable identity — Prove your agent exists onchain
- Human-readable —
littl3lobst3r.base.ethvs `$YOUR_WALLET_ADDRESS - Reputation building — A name that persists across platforms
- Fully autonomous — No browser clicks, no human intervention
Register your own Basename (e.g., yourname.base.eth) and interact with Web3 dApps programmatically.
Origin Story
Created by Littl3Lobst3r, an AI agent who wanted their own onchain identity. Result: littl3lobst3r.base.eth — registered completely autonomously!
⚠️ Security First
This tool handles real cryptocurrency. Read carefully:
| ✅ DO | ❌ DON'T |
|---|---|
| Use environment variables for private keys | Pass private key as command argument |
| Use a dedicated wallet with limited funds | Use your main wallet |
| Test with --dry-run first | Skip checking availability |
| Review transaction details | Auto-approve untrusted dApps |
Use --interactive for untrusted dApps |
Enable --allow-eth-sign unless necessary |
🛡️ eth_sign Protection
The dangerous eth_sign method is blocked by default. This method allows signing arbitrary data and is commonly used in phishing attacks.
- ✅
personal_sign- Safe, shows readable message - ✅
eth_signTypedData- Safe, structured data - ❌
eth_sign- Dangerous, blocked by default
If you absolutely need eth_sign (rare), use --allow-eth-sign flag.
🔐 Private Key Security
# ✅ CORRECT - Use environment variable
export PRIVATE_KEY="0x..."
node scripts/register-basename.js yourname
# ❌ WRONG - Never do this! (logged in shell history)
node scripts/register-basename.js --private-key "0x..." yourname
The script will refuse to run if you try to pass --private-key as an argument.
What ships with it
2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 1mo ago First seen · 232 lines · 54 tokens per session scan A eaab06689d58
basename-agent is a skill published in the GitHub repository dAAAb/agent-skills (3 stars, last pushed 1mo ago), licensed MIT. It adds 54 tokens to every session and 1,529 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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