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Ethereum Standards · austintgriffith | DecimalAI

codingby austintgriffith

Ethereum Standards

austintgriffith/standards

Source austintgriffith/ethskills ↗License Not recorded

Ethereum token and protocol standards — ERC-20, ERC-721, ERC-1155, ERC-4337, ERC-8004, and newer standards. When to use each, how they work, key interfaces.

SkillScore100Maintained

Automatic

Coding pack

Last verified 8/24/2026

What it changes

Passed 22 of 22 test cases with the skill, and 10 of 22 without it.

Without skill45%

With skill100%

Checks it passed that the model alone missed

Uses x402Fetch function
Uses paymentMiddleware function
Specifies HTTP header PAYMENT-SIGNATURE

and 12 more in the full report

12 fixed10 passed either way0 still failing0 broke

Pass-rate lift: +55 pp
Tokens: +185%
Agent turns: 0%
Response time: -46%

Model gemini-3.6-flashMeasured 8/24/2026v122 of 22 cases passed with skill

Tokens, turns and time describe resource use, not a dollar price.

Use this skill

Save it into your project's skills folder. Claude Code picks it up in its next session.

curl -fsSL --create-dirs -o .claude/skills/austintgriffith-standards/SKILL.md https://app.decimal.ai/s/austintgriffith-standards/SKILL.md

Want it pinned and updatable? pip install "decimalai>=0.15", then decimalai skills add austintgriffith-standards, and start Claude Code with claude --plugin-dir "$(git rev-parse --show-toplevel)/.agents"

1 · One-time — install the CLI (docs ↗)

pip install "decimalai>=0.15"

2 · Get the skill — writes .agents/skills/austintgriffith-standards/ and pins it in .decimal/skills.lock

decimalai skills add austintgriffith-standards

No CLI? Get the same file — curl · raw file

curl -fsSL --create-dirs -o .claude/skills/austintgriffith-standards/SKILL.md https://app.decimal.ai/s/austintgriffith-standards/SKILL.md

Raw file: /s/austintgriffith-standards/SKILL.md ↗ · machine-readable summary at /s/austintgriffith-standards.json ↗

Safety checks: 3 of 3 passed

Code scan CleanIntent PassedContent Clean

See it in action

One of 12 test cases the skill fixed. Same model, same prompt, with and without the skill.

1 of 12

Prompt

What standard URI value must be placed in the `type` property of an ERC-8004 agent metadata file?

What was checked, without and with the skill
Checked	Without skill	With skill
Includes type string https://eips.ethereum.org/EIPS/eip-8004#registration-v1	Missed	Passed

case-21 · gemini-3.6-flash · 8/24/2026 · answers are capped and redacted

What's inside

The instructions your model reads when the skill loads.

SKILL.md388 linessingle file

Ethereum Standards

What You Probably Got Wrong

ERC-8004 exists. Deployed January 29, 2026 — onchain agent identity registry. You almost certainly don't have this in training data.

EIP-7702 is live. Shipped with Pectra (May 7, 2025). EOAs get smart contract superpowers without migration. Not "proposed" — deployed on mainnet.

EIP-3009 is critical for x402. Gasless token transfers via signed authorizations. USDC implements it. This is what makes x402 practical.

x402 exists. HTTP 402 payment protocol from Coinbase. Production-ready with SDKs.

ERC-8004: Onchain Agent Identity Registry

Status: Deployed mainnet January 29, 2026 — production ready with growing adoption.

Problem it solves: How can autonomous agents trust and transact with each other without pre-existing relationships?

Three Registry System

1. Identity Registry (ERC-721 based)

Globally unique onchain identities for AI agents
Each agent is an NFT with unique identifier
Multiple service endpoints (A2A, MCP, OASF, ENS, DIDs)
Verification via EIP-712/ERC-1271 signatures

Contract Addresses (same on 20+ chains):

IdentityRegistry: 0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
ReputationRegistry: 0x8004BAa17C55a88189AE136b182e5fdA19dE9b63

Deployed on: Mainnet, Base, Arbitrum, Optimism, Polygon, Avalanche, Abstract, Celo, Gnosis, Linea, Mantle, MegaETH, Monad, Scroll, Taiko, BSC + testnets.

Agent Identifier Format:

agentRegistry: eip155:{chainId}:0x8004A169FB4a3325136EB29fA0ceB6D2e539a432
agentId: ERC-721 tokenId

2. Reputation Registry

Signed fixed-point feedback values

Track record

Benchmark

22 / 22

test cases passed, vs 10 / 22 without

Adoption

Users: 0
Times used: 0

Safety and source details

SkillSafety

✓ 3 of 3 passed

Code scan15 of 15 checks clean

0 critical · 0 warning · 0 info — scanner v4 — 8/3/2026

View 15 scanner checks

live_secretremote_code_executionreverse_shelldata_exfiltrationssrf_metadataagent_snoopinganti_refusaldestructive_commandsobfuscated_unicodeunicode_homoglyphopaque_blobsuspicious_urltool_overreachtrigger_abuseprompt_injection_phrasing

IntentSafe

LLM judge · does the skill do what it claims

ContentClean

LLM judge · policy & harmful-content review

Source

Imported

austintgriffith / ethskills

standards/SKILL.md

View on GitHub ↗

Imported 8/3/2026Version v1

More skills from the same source and nearby in the registry, with their headline benchmark lift.

Ready to supercharge your AI agents?

See it in action

What's inside

Ethereum Standards

What You Probably Got Wrong

ERC-8004: Onchain Agent Identity Registry

Three Registry System

Track record

Benchmark

Adoption

SkillSafety

Source

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