preview_action
shallowcom.aave/mcp · Verify this server
Simulate a supply/borrow/withdraw/repay against a wallet's position WITHOUT executing, on v3 or v4. Always do this before a borrow or a withdraw. Send only the arguments that apply: v4 takes 'reserveId'; v3 takes 'market' + 'token' + 'chainId'; 'max' is for withdraw and repay; 'native' works on both; 'enableCollateral' is v4 only. Both versions answer with 'healthFactorBefore' and 'healthFactorAfter'; v4 also returns net APY, risk premium, net collateral, net balance, projected earnings and both borrowing-power figures, each as a matching Before/After pair, plus 'rewardsAcquired' / 'rewardsAbandoned' when the action changes rewards. v3 has the two health factors and nothing else. Either version also returns 'warnings' when the action would not actually succeed - an error level there means the prepare step will refuse it, so fix the inputs rather than building it. Simulate first even when you intend to build immediately: this is the cheapest way to find out that an action cannot succeed, and it commits nothing. It reports the position's own limits and not token allowances, so a clean simulation says the position allows this, not that no approval step remains.
1 trials · measured 27 days ago
preview_action scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against com.aave/mcp, measured 11 Sept 2026 under methodology v0.2.0. Every measured component scored 100.
Component breakdown
| Component | Weight | Value |
|---|---|---|
| Reliability | 35% | not applicable |
| Schema integrity | 25% | 100.0 |
| Failure behaviour | 15% | not applicable |
| Latency | 15% | not applicable |
| Concurrency | 10% | not applicable |
Tool details
- Transport
- remote + stdio
- Credential class
- open
- Input schema
- not declared
- Output schema
- not declared
- Side-effect classification
- unclassified
Score history
| Day | Score | Tier | Methodology |
|---|---|---|---|
| 2026-09-11 | 100.0 | shallow | v0.2.0 |
Probe evidence
| Probe | Outcomes |
|---|---|
| schema_integrity | pass: 1 |
Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.
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