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SKILL verified MIT Self-run

Sentinel

skill-droodotfoo-agent-skills-sentinel · by DROOdotFOO

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Install

$ agentstack add skill-droodotfoo-agent-skills-sentinel

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • ✓ Prompt-injection patterns
  • ✓ Secret / credential exfiltration
  • ✓ Dangerous shell & filesystem operations
  • ✓ Untrusted network calls
  • ✓ Known-malicious package signatures

What it can access

  • ✓ Network access No
  • ✓ Filesystem access No
  • ✓ Shell / process execution No
  • ✓ Environment & secrets No
  • ✓ Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Passed review? Show it. Paste this badge into your README, it links to the public security report.

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[![AgentStack Verified](https://agentstack.voostack.com/badges/verified.svg)](https://agentstack.voostack.com/security/report/skill-droodotfoo-agent-skills-sentinel)

Reliability & compatibility

✓ Security review passed
0 installs to date
— no reviews yet
● 2mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
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About

Sentinel

On-chain contract monitor. 4 alert rules (large transfers, ownership changes, unusual methods, selfdestruct) across 11 chains via Blockscout API v2.

What You Get

  • Alert list: large transfers, ownership changes, unusual methods, selfdestruct calls
  • JSONL alert log at ~/.local/share/sentinel/alerts.jsonl
  • macOS notifications for continuous watch mode

CLI Usage

# One-shot contract check
sentinel check --address 0x... --chain 1

# Check from a specific block
sentinel check --address 0x... --chain 8453 --since-block 12345678

# Continuous monitoring from config
sentinel watch --config sentinel.toml

# View recent alerts
sentinel alerts --limit 20

Supported Chains

EVM-only. Not available for native Solana or Tron -- use coingecko skill for token data on those chains.

| Chain | ID | Chain | ID | |-------|----|-------|----| | Ethereum | 1 | Arbitrum One | 42161 | | Polygon | 137 | OP Mainnet | 10 | | Base | 8453 | zkSync Era | 324 | | Gnosis | 100 | Scroll | 534352 | | Celo | 42220 | Mode | 34443 | | Neon EVM (Solana) | 245022934 | | |

MCP Server

sentinel serve

Configure MCP

Add to ~/.mcp.json:

{
  "mcpServers": {
    "sentinel": {
      "command": "sentinel",
      "args": ["serve"]
    }
  }
}

MCP Tools

| Tool | Description | |------|-------------| | sentinel_check | Check a contract for anomalous transactions | | sentinel_alerts | Show recent alerts from the local log |

Install

cd agents/sentinel
pip install -e .

No API keys required -- uses public Blockscout API v2 endpoints.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

Reviews

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Versions

  • v0.1.0 Imported from the upstream source.

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