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 organvm-iv-taxis/a-i--skills --skill blockchain-integration-buildergit clone --depth 1 https://github.com/organvm-iv-taxis/a-i--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/organvm-iv-taxis/a-i--skills/blockchain-integration-builder)<a href="https://agentmods.dev/skills/organvm-iv-taxis/a-i--skills/blockchain-integration-builder"><img src="https://agentmods.dev/badge/skills/organvm-iv-taxis/a-i--skills/blockchain-integration-builder/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/organvm-iv-taxis/a-i--skills/blockchain-integration-builder"><img src="https://agentmods.dev/badge/skills/organvm-iv-taxis/a-i--skills/blockchain-integration-builder.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00085 | $0.01451 |
| Opus 5 | $0.00043 | $0.00726 |
| Sonnet 5 | $0.00017 | $0.00290 |
| Haiku 4.5 | $0.00009 | $0.00145 |
Grade A, and why
blockchain-integration-builder 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 12d 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 — 235 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Blockchain Integration Builder
Design blockchain systems using universal patterns applicable across chains.
Core Abstractions
Blockchain-agnostic thinking: focus on what you're trying to achieve, then select chain/framework.
Fundamental Primitives
| Primitive | What It Is | Chain Examples |
|---|---|---|
| Account | Identity with balance | EOA (Eth), Wallet (Solana), Account (Near) |
| Transaction | State change request | Signed message + gas |
| Block | Batch of transactions | Time-ordered, immutable |
| Contract | On-chain program | Solidity, Rust, Move |
| Event/Log | Indexed side-effect | Emitted by contracts, queryable |
| State | Persistent data | Mappings, storage slots |
Selection Criteria
| Need | Consider | Why |
|---|---|---|
| Programmability | Ethereum, Arbitrum, Base | Mature tooling, EVM ecosystem |
| Speed/Cost | Solana, Sui, Aptos | High throughput, low fees |
| Privacy | Aztec, Zcash | Zero-knowledge proofs |
| Interoperability | Cosmos, Polkadot | Cross-chain communication |
| Simplicity | Bitcoin, Litecoin | Limited scripting, proven security |
Pattern Library
Identity Patterns
Wallet-Based Identity
User → Wallet → Sign Message → Verify Signature → Authenticated
- No passwords stored
- User controls identity
- Works across applications
Soul-Bound Tokens (SBTs)
Issuer → Mint SBT → User Wallet (non-transferable)
- Credentials, achievements, reputation
- Cannot be sold or transferred
- Revocable by issuer (optionally)
Decentralized Identifiers (DIDs)
did:method:identifier → Resolve → DID Document → Public Keys, Services
- Self-sovereign identity
- Cross-chain portable
- W3C standard
Token Patterns
Fungible Tokens (ERC-20 pattern)
// Universal interface
balanceOf(address) → uint256
transfer(to, amount) → bool
approve(spender, amount) → bool
transferFrom(from, to, amount) → bool
Non-Fungible Tokens (ERC-721 pattern)
// Universal interface
ownerOf(tokenId) → address
transferFrom(from, to, tokenId)
tokenURI(tokenId) → string (metadata)
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.
- 12d ago First seen · 235 lines · 85 tokens per session scan A b8538ae65375
blockchain-integration-builder is a skill published in the GitHub repository organvm-iv-taxis/a-i--skills (17 stars, last pushed 16d ago), licensed Apache-2.0. It adds 85 tokens to every session and 1,451 once invoked, about $0.0004 per session on Opus 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 2026-08-30.
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