prepare_kamino_withdraw

SERVERVaultPilot MCP SOURCEvaultpilot-mcp

Critical RISK CLASS

Category Financial

Parameters 33 required

Recommended Approval-gatedsee the rule below

Registry record Grade F, identity unverified Pull the record →

This record as markdown: /tools/io-github-szhygulin-vaultpilot-mcp/prepare-kamino-withdraw.md

WHAT IT DOES

What prepare_kamino_withdraw does on VaultPilot MCP

AI agents use prepare_kamino_withdraw to commit financial operations through VaultPilot MCP, usually the final step of a payment, billing, or trading workflow. A call moves real money.

Parameter	Type	Required	Description
`mint`	string	Yes	Base58 Solana mainnet address (ed25519 pubkey, 43 or 44 chars).
`amount`	string	Yes	Human-readable amount to withdraw. The reserve must have an active deposit from this wallet — the builder refuses with a clear error otherwise. Health-factor ga
`wallet`	string	Yes	Solana base58 wallet — must already have a Kamino deposit in the named reserve.

Parameters from the server's own tool schema.

RISK

Why prepare_kamino_withdraw is rated Critical

This tool builds a transaction to withdraw liquidity from a Kamino DeFi lending reserve on Solana. Withdrawing supplied assets from a DeFi protocol directly affects financial positions — it moves crypto assets, affects collateralization ratios, and interacts with lending obligations. The health-factor gating and blind-sign treatment confirm real on-chain financial consequences.

From the tool's definition 'pulls liquidity out of a previously-supplied reserve', 'prepare_kamino_withdraw', 'DURABLE NONCE REQUIRED + same blind-sign treatment as prepare_kamino_supply'

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs prepare_kamino_withdraw safely

PolicyLayer is an MCP gateway: it sits between your AI agents and VaultPilot MCP, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For prepare_kamino_withdraw, this is the rule to start with:

prepare_kamino_withdraw Approval-gated

Any call to prepare_kamino_withdraw is blocked until a human approves it. The rest of the server keeps working.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "prepare_kamino_withdraw": {
      "deny_if": [
        {
          "conditions": [],
          "on_deny": "Requires human approval."
        }
      ]
    }
  }
}

GATE THIS TOOL → Instant setup, no code required.

The button opens the PolicyLayer dashboard: create your workspace, connect VaultPilot MCP, apply this rule, and every prepare_kamino_withdraw call is checked against it from then on.

FAQ

Questions about prepare_kamino_withdraw

What does the prepare_kamino_withdraw tool do? +

Build a Kamino withdraw tx — pulls liquidity out of a previously-supplied reserve. Refuses with a clear error if the wallet has no deposit in the named reserve. Health-factor gated on-chain: withdraws that would leave the obligation under-collateralized for outstanding debt revert (caught by the simulation gate). DURABLE NONCE REQUIRED + same blind-sign treatment as prepare_kamino_supply. It is categorised as a Financial tool in the VaultPilot MCP MCP Server, which means it involves financial transactions. Block by default and require explicit approval.

What parameters does prepare_kamino_withdraw accept? +

prepare_kamino_withdraw accepts 3 parameters: mint, amount, wallet. Required: mint, amount, wallet. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on prepare_kamino_withdraw? +

Register the VaultPilot MCP server in PolicyLayer and add a rule for prepare_kamino_withdraw: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches VaultPilot MCP. Nothing to install.

What risk level is prepare_kamino_withdraw? +

prepare_kamino_withdraw is a Financial tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.

Can I rate-limit prepare_kamino_withdraw? +

Yes. Add a rate_limit block to the prepare_kamino_withdraw rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.

How do I block prepare_kamino_withdraw completely? +

Set action: deny in the PolicyLayer policy for prepare_kamino_withdraw. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.

What MCP server provides prepare_kamino_withdraw? +

prepare_kamino_withdraw is provided by the VaultPilot MCP server (vaultpilot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.

KEEP EXPLORING

More on VaultPilot, and thousands of servers like it.

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All 189 VaultPilot tools → Critical-risk tools on this server →

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build_redeem_withdraw_tx on Atv → All critical-risk MCP tools → The MCP Attack Database →

Guides

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