prepare_compound_repay

Build an unsigned Compound V3 repay transaction — encoded as supply(baseToken) against an outstanding borrow. Includes an approve step if needed. Pass amount: "max" for a full repay.

SERVERVaultPilot MCP SOURCEvaultpilot-mcp

High RISK CLASS

Category Execute

Parameters 53 required

Recommended Rate-limitedsee the rule below

Registry record Grade F, identity unverified Pull the record →

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

WHAT IT DOES

What prepare_compound_repay does on VaultPilot MCP

AI agents invoke prepare_compound_repay to trigger actions in VaultPilot MCP. What it does depends on the arguments the agent supplies, and its effects often reach beyond the immediate call: builds kicked off, notifications sent, workflows started.

Parameter	Type	Required	Description
`chain`	string	—	EVM chain the Comet market lives on. Defaults to ethereum.
`amount`	string	Yes	Human-readable decimal amount of the market base token, NOT raw wei/base units. Example: "100" for 100 USDC.
`market`	string	Yes	Comet market address (e.g. cUSDCv3). The base token is resolved on-chain.
`wallet`	string	Yes	0x-prefixed EVM wallet address (40 hex chars) that will execute this action.
`approvalCap`	string	—	Cap on the ERC-20 approval preceding this action. Omit for "unlimited" (standard DeFi UX — fewer follow-up approvals). Pass "exact" to approve only what this ac

Parameters from the server's own tool schema.

RISK

Why prepare_compound_repay is rated High

This tool constructs DeFi transactions (repay + optional token approval) on Compound V3. While it builds 'unsigned' transactions, it encodes real on-chain operations that, once signed and broadcast, move tokens and modify borrow positions. It is not merely reading data, and the approve step adds additional financial risk.

From the tool's definition Build an unsigned Compound V3 repay transaction — encoded as supply(baseToken) against an outstanding borrow. Includes an approve step if needed. Pass `amount: "max"` for a full repay.

Attacks that exploit this kind of access

RECOMMENDED RULE

The rule that runs prepare_compound_repay 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_compound_repay, this is the rule to start with:

prepare_compound_repay Rate-limited

prepare_compound_repay stays usable, but rate-capped: a runaway agent can't fire it dozens of times a minute. Everything else on the server is denied unless you say otherwise.

View as policy code

policy.json

{
  "version": "1",
  "default": "deny",
  "tools": {
    "prepare_compound_repay": {
      "limits": [
        {
          "counter": "prepare_compound_repay_rate",
          "window": "minute",
          "max": 10,
          "scope": "grant"
        }
      ]
    }
  }
}

RATE-LIMIT 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_compound_repay call is checked against it from then on.

FAQ

Questions about prepare_compound_repay

What does the prepare_compound_repay tool do? +

Build an unsigned Compound V3 repay transaction — encoded as supply(baseToken) against an outstanding borrow. Includes an approve step if needed. Pass amount: "max" for a full repay. It is categorised as a Execute tool in the VaultPilot MCP MCP Server, which means it can trigger actions or run processes. Use rate limits and argument validation.

What parameters does prepare_compound_repay accept? +

prepare_compound_repay accepts 5 parameters: chain, amount, market, wallet, approvalCap. Required: amount, market, wallet. The full parameter table on this page comes from the server's own tool schema.

How do I enforce a policy on prepare_compound_repay? +

Register the VaultPilot MCP server in PolicyLayer and add a rule for prepare_compound_repay: 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_compound_repay? +

prepare_compound_repay is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.

Can I rate-limit prepare_compound_repay? +

Yes. Add a rate_limit block to the prepare_compound_repay 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_compound_repay completely? +

Set action: deny in the PolicyLayer policy for prepare_compound_repay. 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_compound_repay? +

prepare_compound_repay 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

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