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SKILL verified MIT Self-run

Skill 03 Defi Operations

skill-vaquarkhan-web3-agent-skills-skill-03-defi-operations · by vaquarkhan

Executes DeFi operations including token swaps, lending/borrowing, staking, liquidity provision, flash loans, perpetuals, and vault strategies. Use when interacting with Uniswap, Aave, Compound, Lido, or other DeFi protocols.

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Install

$ agentstack add skill-vaquarkhan-web3-agent-skills-skill-03-defi-operations

✓ 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.

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About

DeFi Operations

When to Use

  • Swapping tokens on DEXs (Uniswap, Curve, 1inch)
  • Lending/borrowing (Aave, Compound, Morpho)
  • Staking (Lido stETH, EigenLayer restaking)
  • Providing/removing liquidity (Uniswap V3, Curve)
  • Flash loans (Aave, Balancer, dYdX)
  • Perpetual trading (GMX, dYdX v4)
  • Yield vaults (Yearn, ERC-4626 vaults)

Prerequisites

  • MCP: blockchain-rpc-server, defi-protocol-server, price-feed-server
  • Skills: skill-02 (contract calls), skill-12 (gas), skill-15 (MEV for swaps)
  • Guardrails: simulate all txs; screen counterparties

Workflow

1. Swap

  1. Get quote from defi-protocol-server or 1inch API
  2. Check price impact ( 1.5 recommended |

| Compound V3 | supply() | N/A (Comet) | Collateral factor varies | | Morpho | Optimizer bundles | Peer-matched rates | Check LLTV |

Always maintain health factor buffer. Monitor oracle price feeds (skill-11).

3. Stake / Restake

  • Lido: submit() ETH → stETH; check rebasing vs wstETH for integrations
  • EigenLayer: deposit into strategy contracts; track withdrawal queues
  • Liquid staking: verify validator set and slashing risk

4. Liquidity Provision

  • Uniswap V3: select tick range; narrow ranges = higher IL risk
  • Calculate impermanent loss before deposit
  • Use defi-protocol-server for current pool APR/TVL

5. Flash Loans

  1. Identify provider (Aave: 0.09% fee, Balancer: 0% on some pools)
  2. Build callback contract with atomic repay logic
  3. Simulate full transaction — revert if unprofitable
  4. Never use flash loans for unbounded external calls

Protocol References

See knowledge-base/protocols/ for addresses, ABIs, and subgraph endpoints per chain.

Risk Checklist

  • [ ] Contract verified and on protocol allowlist
  • [ ] Slippage and deadline set
  • [ ] Health factor / collateral ratio safe
  • [ ] Token approvals scoped to exact amount
  • [ ] MEV protection enabled for swaps > $1,000 (skill-15)

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.

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Versions

  • v0.1.0 Imported from the upstream source.

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