prepare_uniswap_v3_burn
Build an unsigned Uniswap V3 LP burn transaction — destroys the position NFT (irreversible). Hard-refuses unless the position is fully drained: liquidity == 0 AND tokensOwed{0,1} == 0. Standard close-out sequence: prepare_uniswap_v3_decrease_liquidity({ liquidityPct: 100 }) → prepare_uniswap_v3_c...
This record as markdown: /tools/io-github-szhygulin-vaultpilot-mcp/prepare-uniswap-v3-burn.md
What prepare_uniswap_v3_burn does on VaultPilot MCP
AI agents call prepare_uniswap_v3_burn to permanently remove resources in VaultPilot MCP, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
chain | string | — | |
wallet | string | Yes | |
tokenId | string | Yes | ERC-721 tokenId of the LP NFT to destroy. Must be owned by `wallet`. The position must be fully drained: liquidity = 0 AND tokensOwed{0,1} = 0. Refused otherwis |
Parameters from the server's own tool schema.
Why prepare_uniswap_v3_burn is rated Critical
This tool irreversibly destroys a Uniswap V3 LP position NFT, which represents a financial asset. The destruction cannot be undone—the position and its associated liquidity provision rights are permanently eliminated. While the tool includes safeguards (requiring full drainage before burn), the core operation is irreversible destruction of a financial asset, making it Destructive rather than merely Execute or Write.
From the tool's definition Tool description explicitly states it "destroys the position NFT (irreversible)" and uses the word "burn" which in blockchain contexts means permanent destruction. The description emphasizes this is part of an irreversible close-out sequence.
Attacks that exploit this kind of access
The rule that runs prepare_uniswap_v3_burn 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_uniswap_v3_burn, this is the rule to start with:
prepare_uniswap_v3_burn is removed from the agent's tool list entirely, so the agent never calls it. The rest of the server keeps working.
The button opens the PolicyLayer dashboard: create your workspace, connect VaultPilot MCP, apply this rule, and every prepare_uniswap_v3_burn call is checked against it from then on.
Questions about prepare_uniswap_v3_burn
Build an unsigned Uniswap V3 LP burn transaction — destroys the position NFT (irreversible). Hard-refuses unless the position is fully drained: liquidity == 0 AND tokensOwed{0,1} == 0. Standard close-out sequence: prepare_uniswap_v3_decrease_liquidity({ liquidityPct: 100 }) → prepare_uniswap_v3_collect → prepare_uniswap_v3_burn. The error message names the right next step on each refusal. It is categorised as a Destructive tool in the VaultPilot MCP MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
prepare_uniswap_v3_burn accepts 3 parameters: chain, wallet, tokenId. Required: wallet, tokenId. 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_uniswap_v3_burn: 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_uniswap_v3_burn is a Destructive tool with critical risk. Critical-risk tools should be blocked by default and only enabled with explicit human approval.
Yes. Add a rate_limit block to the prepare_uniswap_v3_burn 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_uniswap_v3_burn. 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_uniswap_v3_burn 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.
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