MCPInstall

okx-security

Use this skill for security scanning: check transaction safety, is this transaction safe, pre-execution check, security scan, token risk scanning, honeypot detection, DApp/URL phishing detection, message signature safety, malicious transaction detection, approval safety checks, token approval management. Triggers: 'is this token safe', 'check token security', 'honeypot check', 'scan this tx', 'scan this swap tx', 'tx risk check', 'is this URL a scam', 'check if this dapp is safe', 'phishing site check', 'is this signature safe', 'check this signing request', 'check my approvals', 'show risky approvals', 'revoke approval', 'check if this approve is safe', token authorization, ERC20 allowance, Permit2. Covers token-scan, dapp-scan, tx-scan (EVM+Solana pre-execution), sig-scan (EIP-712/personalsign), approvals (ERC-20/Permit2). Chinese: 安全扫描, 代币安全, 蜜罐检测, 貔貅盘, 钓鱼网站, 交易安全, 签名安全, 代币风险, 授权管理, 授权查询, 风险授权, 代币授权. Do NOT use for wallet balance/send/history — use okx-agentic-wallet.

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Security
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Install

Works with every agent the skills CLI supports.

npx skills add https://github.com/okx/onchainos-skills --skill okx-security
  1. 01

    Install

    Run the command in your project. The CLI asks which agents to install for.

  2. 02

    Describe the task

    Ask your agent for something this skill covers. It loads okx-security automatically when relevant.

  3. 03

    Review the result

    The agent follows the SKILL.md steps, scripts and references bundled with the skill.

Security audits

Independent scans of the skill's instructions and bundled files.

Gen Agent Trust Hub PassSAFE ·The skill is safe to use. It provides a suite of security scanning tools for blockchain transactions, tokens, and DApps. It includes robust security practices such as mandatory SHA256 checksum verification for its installation scripts and binaries to prevent tampering.
Socket PassNo alerts
Snyk WarnMEDIUM ·Risk: MEDIUM · 1 issue
ZeroLeaks PassNONE ·Score: 93/100 · 2 sections analyzed

SKILL.md

The instructions your agent reads when the skill is triggered.

Onchain OS Security

5 commands for token risk analysis, DApp phishing detection, transaction pre-execution security, signature safety, and approval management.

Pre-flight Checks

Read ../okx-agentic-wallet/_shared/preflight.md. If that file does not exist, read _shared/preflight.md instead.

Fail-safe Principle (CRITICAL)

Scan completed — risk detected

If a security scan completes successfully and returns action: "block" or action: "warn", follow the Risk Action Priority Rule below. The Agent MUST NOT override risk verdicts.

Scan failed — infrastructure error

If a security scan fails to complete (network error, API timeout, rate limiting, malformed response), the Agent MUST:

  • Report the error clearly to the user.
  • Ask the user whether to retry the scan or proceed without scan results.
  • If the user chooses to proceed, display a warning:

    "⚠️ Security scan could not be completed. Proceeding without verification — please ensure you trust this operation."

  • Log the skipped scan for auditability.

A security scan that fails to complete is NOT a "pass". Always inform the user and let them make an explicit decision.

Risk Action Priority Rule

tx-scan / sig-scan (transaction & signature scanning)

block > warn > safe (empty). The top-level action field reflects the highest priority from riskItemDetail.

action valueRisk LevelAgent Behavior
(empty/null)Low riskSafe to proceed
warnMedium riskShow risk details, ask for explicit user confirmation
blockHigh riskDo NOT proceed, show risk details, recommend cancel
  • Risk scan result is still valid even if simulation fails (simulator.revertReason may contain the revert reason).
  • If warnings field is populated, the scan completed but some data may be incomplete. Still present available risk information.
  • An empty/null action in a successful API response means "no risk detected". But if the API call failed, the absence of action does NOT mean safe — apply the fail-safe principle.

token-scan (token risk label scanning)

Token-scan returns a riskLevel field (CRITICAL, HIGH, MEDIUM, LOW) that represents the overall token risk, computed server-side from all boolean labels, tax thresholds, and additional signals (off-chain intelligence, ML models). The Agent uses this field directly and applies different actions for buy vs. sell operations.

riskLevelBuy ActionSell Action
CRITICALblock — refuse to buywarn — display risk, allow sell
HIGHwarn + pause — require explicit yes/nowarn — display risk, allow sell
MEDIUMwarn — info notice, continuewarn — info notice, continue
LOWsafe — proceedsafe — proceed

Full label catalog, tax threshold rules, and display format are defined in references/risk-token-detection.md. Always load that reference before executing token-scan.

Key principles:

  • riskLevel is authoritative: The API returns the overall risk level server-side. The Agent reads riskLevel directly — no client-side computation from individual labels is needed.
  • Buy is stricter than sell: CRITICAL blocks buy but only warns on sell (to allow stop-loss exit).
  • HIGH buy requires explicit user confirmation (yes/no) — do not auto-continue.
  • Individual label levels are not displayed to the user — only the overall riskLevel is shown, with triggered labels listed without level prefixes.
  • If isChainSupported: false, skip detection with a warning; do not block.
  • If API fails, warn but do not block. In swap context, token-scan failures auto-continue with a warning to avoid blocking time-sensitive trades — this overrides the general fail-safe's ask-user behavior.

Security commands do not require wallet login. They work with any address.

Chain Name Support

The CLI accepts human-readable chain names and resolves them automatically.

ChainNamechainIndex
XLayerxlayer196
Ethereumethereum or eth1
Solanasolana or sol501
BSCbsc or bnb56
Polygonpolygon or matic137
Arbitrumarbitrum or arb42161
Basebase8453
Avalancheavalanche or avax43114
Optimismoptimism or op10
zkSync Erazksync324
Linealinea59144
Scrollscroll534352

Address format note: EVM addresses (0x...) work across Ethereum/BSC/Polygon/Arbitrum/Base etc. Solana addresses (Base58) and Bitcoin addresses (UTXO) have different formats. Do NOT mix formats across chain types.

Related Workflows

When one of the following commands is used, show the related workflow hint after displaying results:

CommandWorkflowFile
security token-scanNew Token Screening~/.onchainos/workflows/new-token-screening.md
security token-scanSmart Money Signals~/.onchainos/workflows/smart-money-signals.md
security token-scanToken Research~/.onchainos/workflows/token-research.md
security token-scanWallet Monitor~/.onchainos/workflows/wallet-monitor.md

Hint format: "You can also try out our [workflow name] workflow for more comprehensive results. Would you like to try it?"

Command Index

#CommandDescription
1onchainos security token-scanToken risk / honeypot detection (all chains)
2onchainos security dapp-scanDApp / URL phishing detection (chain-agnostic)
3onchainos security tx-scanTransaction pre-execution security (EVM + Solana)
4onchainos security sig-scanMessage signature security (EVM only)
5onchainos security approvalsToken approval / Permit2 authorization query (EVM only)

Reference Loading Rules (MANDATORY)

Before executing ANY security command, you MUST read the corresponding reference document from skills/okx-security/references/. Do NOT rely on prior knowledge — always load the reference first.

User intentRead this file FIRST
Token safety, honeypot, is this token safe, 代币安全, 蜜罐检测, 貔貅盘references/risk-token-detection.md
DApp/URL phishing, is this site safe, 钓鱼网站references/risk-domain-detection.md
Transaction safety, tx pre-execution, signature safety, approve safety, 交易安全, 签名安全references/risk-transaction-detection.md
Approvals, allowance, Permit2, revoke, 授权管理, 授权查询, 风险授权references/risk-approval-monitoring.md

When a workflow involves multiple commands (e.g., token-scan then tx-scan), load each reference before executing that command.

Integration with Other Skills

Security scanning is often a prerequisite for other wallet operations:

  • Before wallet send with a contract token: run token-scan to verify token safety
  • Before wallet contract-call with approve calldata: run tx-scan to check spender
  • Before interacting with any DApp URL: run dapp-scan
  • Before signing any EIP-712 message: run sig-scan

Use okx-agentic-wallet skill for the subsequent send/contract-call operations.

FAQ

What does the okx-security skill do?

Use this skill for security scanning: check transaction safety, is this transaction safe, pre-execution check, security scan, token risk scanning, honeypot detection, DApp/URL phishing detection, message signature safety, malicious transaction detection, approval safety checks, token approval management. Triggers: 'is this token safe', 'check token security', 'honeypot check', 'scan this tx', 'scan this swap tx', 'tx risk check', 'is this URL a scam', 'check if this dapp is safe', 'phishing site check', 'is this signature safe', 'check this signing request', 'check my approvals', 'show risky approvals', 'revoke approval', 'check if this approve is safe', token authorization, ERC20 allowance, Permit2. Covers token-scan, dapp-scan, tx-scan (EVM+Solana pre-execution), sig-scan (EIP-712/personalsign), approvals (ERC-20/Permit2). Chinese: 安全扫描, 代币安全, 蜜罐检测, 貔貅盘, 钓鱼网站, 交易安全, 签名安全, 代币风险, 授权管理, 授权查询, 风险授权, 代币授权. Do NOT use for wallet balance/send/history — use okx-agentic-wallet.

How do I install okx-security?

Run npx skills add https://github.com/okx/onchainos-skills --skill okx-security in your project. The skills CLI detects the agents you use and copies the skill into the right folder. For Claude Code you can also place the skill folder at ~/.claude/skills/okx-security/ (personal) or .claude/skills/okx-security/ (project).

Which AI agents can use okx-security?

Any agent that supports the open Agent Skills format (a folder with a SKILL.md file), including Claude Code, Codex, Cursor, GitHub Copilot, Gemini CLI, Windsurf, Cline, OpenCode and more.

Is okx-security safe to install?

Security partners have reviewed it: Gen Agent Trust Hub passed; Socket passed; Snyk flagged items to review; ZeroLeaks passed. As with any skill, read the SKILL.md and bundled scripts before installing.

Who maintains okx-security?

It is published by okx in okx/onchainos-skills. It has 6,499 recorded installs.

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