Build a Kamino borrow tx — pulls liquidity from a reserve as debt against the obligation's existing collateral. Refuses if the wallet hasn't run prepare_kamino_init_user; refuses if the mint isn't listed on Kamino's main market. On-chain LTV gate: borrow reverts if it would push the obligation ov...
AI agents invoke prepare_kamino_borrow 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 |
|---|---|---|---|
mint | string | Yes | Base58 SPL mint of the asset to borrow against the obligation's collateral. |
amount | string | Yes | Human-readable amount to borrow (e.g. "100" for 100 USDC). Decimals are resolved from the reserve's mint metadata. The on-chain program enforces the borrow LTV |
wallet | string | Yes | Solana base58 wallet — must already have Kamino userMetadata + obligation. |
Parameters from the server's own tool schema.
prepare_kamino_borrow triggers real processes with real consequences. An agent gone sideways doesn't fire it once — it starts dozens of builds, sends mass notifications, or burns through compute before anyone looks up.
Attacks that exploit this kind of access
Build a Kamino borrow tx — pulls liquidity from a reserve as debt against the obligation's existing collateral. Refuses if the wallet hasn't run prepare_kamino_init_user; refuses if the mint isn't listed on Kamino's main market. On-chain LTV gate: borrow reverts if it would push the obligation over the reserve's borrowLimit (the simulation gate catches this before signing). DURABLE NONCE REQUIRED + same blind-sign treatment as prepare_kamino_supply. 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.
prepare_kamino_borrow 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.
Register the VaultPilot MCP server in PolicyLayer and add a rule for prepare_kamino_borrow: 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.
prepare_kamino_borrow is a Execute tool with high risk. Execute tools should be rate-limited and have argument validation enabled.
Yes. Add a rate_limit block to the prepare_kamino_borrow 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.
Set action: deny in the PolicyLayer policy for prepare_kamino_borrow. 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.
prepare_kamino_borrow 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.