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SIWA (Sign-In With Agent) authentication for ERC-8004 registered agents.
Passed 18 of 23 test cases with the skill, and 4 of 23 without it.
and 17 more in the full report
14 fixed4 passed either way5 still failing0 broke
Tokens, turns and time describe resource use, not a dollar price.
One of 14 test cases the skill fixed. Same model, same prompt, with and without the skill.
What is the npm package installation command to add the official Sign-In With Agent library to a Node project?
| Checked | Without skill | With skill |
|---|---|---|
| The installation command specifies @buildersgarden/siwa | Missed | Passed |
The instructions your model reads when the skill loads.
Sign-In With Agent (SIWA) lets AI agents authenticate with services using their ERC-8004 onchain identity.
npm install @buildersgarden/siwa
Choose based on your wallet provider:
| Import | Description |
|---|---|
@buildersgarden/siwa | Core: signSIWAMessage, verifySIWA, createSIWANonce |
@buildersgarden/siwa/signer | Signer factories |
@buildersgarden/siwa/erc8128 | ERC-8128 HTTP signing/verification |
@buildersgarden/siwa/receipt | HMAC receipt helpers |
@buildersgarden/siwa/nonce-store | Nonce stores (Memory, Redis, KV) |
@buildersgarden/siwa/next | Next.js middleware |
@buildersgarden/siwa/express | Express middleware |
@buildersgarden/siwa/hono | Hono middleware |
@buildersgarden/siwa/fastify | Fastify middleware |
test cases passed, vs 4 / 23 without
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More skills from the same source and nearby in the registry, with their headline benchmark lift.