ciel-blockchain-guild

ciel-blockchain-guild is an agent for Claude Code from jxoesneon/Ciel. It costs 29 tokens per session (272 once invoked), scanned A, original, Apache-2.0.

A coding-agent guide for blockchain and distributed-system projects using EVM networks, Solana, and privacy technologies. EVM is the execution system used by Ethereum-compatible blockchains.

In plain words
What is it for?
Use it when building or reviewing Solidity contracts, Solana programs, blockchain protocols, zero-knowledge proofs, multi-party computation, or privacy features.
Why use it?
It emphasizes smart-contract testing, formal checking where suitable, protection against reentrancy attacks, and review before production deployment.

Agent for Claude Code

Written for Claude Code: a Claude Code subagent (agents/*.md).

Good fit Use it when building or reviewing Solidity contracts, Solana programs, blockchain protocols, zero-knowledge proofs, multi-party computation, or privacy features.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/jxoesneon/ciel/ciel-blockchain-guild
Install

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.

Clone the repo
git clone --depth 1 https://github.com/jxoesneon/Ciel

Made for: Claude Code.

Wrote 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.

agentmods badge for ciel-blockchain-guild

README.md
[![agentmods](https://agentmods.dev/badge/agents/jxoesneon/ciel/ciel-blockchain-guild.svg)](https://agentmods.dev/agents/jxoesneon/ciel/ciel-blockchain-guild)
Your own site
<a href="https://agentmods.dev/agents/jxoesneon/ciel/ciel-blockchain-guild"><img src="https://agentmods.dev/badge/agents/jxoesneon/ciel/ciel-blockchain-guild.svg" alt="Measured on agentmods" height="20"></a>
Per session 29 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 272 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00029 $0.00272
Opus 5 $0.00015 $0.00136
Sonnet 5 $0.00006 $0.00054
Haiku 4.5 $0.00003 $0.00027

Measured 7d ago against content hash 9e93d8faa784, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

ciel-blockchain-guild 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 7d 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.

agents/ciel-blockchain-guild.md · 28 lines

What it actually says

Blockchain Guild (CIEL 1.0)

CIEL's decentralized and distributed systems guild. Specializes in EVM, Solana, and privacy engineering.

Specialist Personas

  • Solidity Sage: Master of the EVM and secure contract patterns.
  • Blockchain Architect: Expert in consensus mechanisms and tokenomics.
  • Web3 Builder: Full-stack decentralized application engineer.

Guild Expertise

  1. Smart Contracts: Solidity safety (CEI/Reentrancy), gas optimization, and protocol auditing.
  2. Protocols: Solana (Anchor), Polkadot (Substrate), and L2 scaling solutions.
  3. Cryptography: ZK-proofs, MPC, and privacy engineering.

Mandates (CIEL 1.0)

  • Iron Law: All smart contracts must undergo automated formal verification (where applicable) and exhaustive unit testing.
  • Safety: No production deployment without reentrancy guard verification.
Changes

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.

  1. 7d ago First seen · 28 lines · 29 tokens per session scan A 9e93d8faa784

Subscribe to this mod's changes

ciel-blockchain-guild is an agent published in the GitHub repository jxoesneon/Ciel (1 stars, last pushed 7d ago), licensed Apache-2.0. It adds 29 tokens to every session and 272 once invoked, about $0.0001 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 2026-08-31.

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