Skills blockchain-developer
📦

blockchain-developer

Content revision r2 Safe ⚙️ External commands

Build Secure Blockchain Applications

Blockchain systems require careful architecture, testing, and security decisions across rapidly changing ecosystems. This skill provides structured guidance for smart contracts, Web3 applications, DeFi, and infrastructure.

Supports: Claude Codex Code(CC)
🥉 78 Bronze

Install with my Agent

Copy this request to your Agent. It includes the canonical Skill page and manifest.

Agent request
Review the Skillstore skill "blockchain-developer" from https://skillstore.io/skills/sickn33-blockchain-developer.md and its manifest at https://skillstore.io/api/skills/sickn33-blockchain-developer/manifest. Verify the artifact. You may proceed after verification, subject to the environment's own policy.

Your Agent should still show its plan and request any confirmation required by the security policy.

Agent-readable resources

Use these links when an AI agent, crawler, or script needs clean context instead of reading the full page.

Markdown detail GET /skills/sickn33-blockchain-developer.md Signed manifest GET /api/skills/sickn33-blockchain-developer/manifest Signed lockfile GET /api/skills/sickn33-blockchain-developer/lockfile

Test it

Using "blockchain-developer". Design an ERC-20 token with vesting and administrative controls.

Expected outcome:

  • Architecture: separate token, vesting wallet, and multisignature administration responsibilities.
  • Security controls: capped supply, explicit roles, delayed administration, and protected initialization.
  • Validation: unit tests, invariant tests, fuzzing, static analysis, and independent review before deployment.

Using "blockchain-developer". Compare Ethereum and an optimistic rollup for a consumer payment application.

Expected outcome:

  • Ethereum provides stronger direct settlement but has higher and less predictable transaction costs.
  • An optimistic rollup lowers user costs while adding sequencer, bridge, and withdrawal-delay considerations.
  • The recommendation depends on payment value, latency needs, custody model, and recovery requirements.

Using "blockchain-developer". Assess a lending protocol that uses one external price oracle.

Expected outcome:

  • Primary risk: a stale or manipulated price can trigger incorrect borrowing limits and liquidations.
  • Mitigations: freshness checks, deviation limits, circuit breakers, fallback feeds, and conservative collateral parameters.
  • Testing should cover stale data, abrupt price changes, feed failure, and market illiquidity.

Security Audit

Safe
v5 • 8/14/2026 Open versioned report

All three static findings are false positives caused by Markdown formatting or descriptive security guidance. No executable commands, secret collection, reconnaissance behavior, prompt injection, or malicious intent were found.

1
Files scanned
212
Lines analyzed
0
Review items
0
False positives ignored

Risk Factors

⚙️ External commands (1)
SKILL.md:24
No confirmed security findings were detected by the latest completed static and semantic audit. This does not prove the skill has no side effects.
Audited by: codex View Audit History →
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Open versioned report
Security Assessment

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Academic citations (APA · BibTeX · CFF)

APA citation

sickn33. (2026). blockchain-developer security audit report (audit version 5) [Author version unspecified]. Skillstore. https://skillstore.io/skills/sickn33-blockchain-developer/audits/5

BibTeX citation

@techreport{sickn33-sickn33-blockchain-developer-2026, author = {sickn33}, title = {blockchain-developer security audit report (audit version 5)}, institution = {Skillstore}, year = {2026}, number = {5}, url = {https://skillstore.io/skills/sickn33-blockchain-developer/audits/5}, note = {Author version unspecified} }

CITATION.cff

cff-version: 1.2.0 message: "If you use this Skill, cite its author and this versioned security audit report." title: "blockchain-developer security audit report (audit version 5)" version: "unspecified" type: report authors: - name: "sickn33" date-released: "2026-08-14" url: "https://skillstore.io/skills/sickn33-blockchain-developer/audits/5" identifiers: - type: other value: "skillstore:sickn33-blockchain-developer:audit:5" description: "Skillstore immutable audit report identifier"

Skillstore Score

Why this score Evidence Confidence: High
55
Architecture
85
Maintainability
87
Content
68
Community
83
Spec Compliance

What You Can Build

Plan a Secure Smart Contract

Define contract roles, state transitions, upgrade strategy, threat model, and testing requirements before implementation.

Design a Web3 Product

Select networks, wallets, indexing, storage, and transaction flows for a practical decentralized application.

Assess a Protocol Design

Review DeFi mechanics, oracle dependencies, governance controls, economic risks, and operational monitoring.

Try These Prompts

Choose a Blockchain Stack 
Recommend a blockchain stack for [product]. Compare network cost, security, tooling, wallet support, and scalability. State assumptions and unresolved decisions.
Design a Smart Contract 
Design a [contract type] for [network]. Define roles, functions, state transitions, events, invariants, failure cases, and a focused test plan.
Review a Protocol Architecture 
Review this [protocol description]. Identify trust assumptions, attack surfaces, oracle risks, governance risks, upgrade hazards, and mitigations. Prioritize findings by impact.
Plan a Multi-Chain Deployment 
Create a deployment strategy for [application] across [networks]. Cover contract versioning, bridge risk, configuration, testing, monitoring, incident response, and rollback constraints.

Best Practices

  • Define trust assumptions, invariants, privileged roles, and emergency controls before writing contracts.
  • Use established libraries and combine unit, integration, fuzz, invariant, and static analysis tests.
  • Deploy to testnets first, monitor critical events, and obtain independent review before managing valuable assets.

Avoid

  • Do not deploy unaudited generated contracts directly to a production network.
  • Do not place private keys, seed phrases, or production secrets in prompts or source files.
  • Do not optimize gas before validating correctness, access controls, economic assumptions, and failure behavior.

Frequently Asked Questions

Which blockchain ecosystems does this skill cover?
It covers Ethereum and EVM networks, Solana, Cosmos, Polkadot, NEAR, Cardano, Algorand, Hyperledger, and Bitcoin-related systems.
Can it write smart contracts?
It can guide and generate contract implementations, architecture, tests, and documentation. Every result still requires review and validation.
Does it perform a formal security audit?
It can structure reviews and identify common risks. It does not replace independent auditors or formal verification specialists.
Can it help with DeFi protocol design?
Yes. It covers lending, exchanges, liquidity incentives, derivatives, oracles, governance, tokenomics, and economic risk analysis.
Can it deploy contracts or manage funds?
No. It provides guidance and generated artifacts but cannot approve transactions, control wallets, or independently operate infrastructure.
What information should a prompt include?
Provide the target network, users, assets, trust assumptions, constraints, upgrade needs, compliance context, and success criteria.

Developer Details

Author

sickn33

License

MIT

Skillstore revision

r2

Version notice

The author did not declare a version.

Repository

https://github.com/sickn33/antigravity-awesome-skills/tree/main/skills/blockchain-developer

Ref

5a26d1d61d694db29af9b138c661c1981076d9df

Maintenance freshness

8/15/2026

Usage

13 downloads · 91 views

File structure

📄 SKILL.md

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