[Hashlock protocol — hashlock.markets] Create a trading intent to swap, buy, sell, exchange, or convert any asset — crypto tokens (ETH, BTC, SUI, USDC, USDT, DAI, any ERC20), real-world assets (RWA), or stablecoins — across Ethereum, Bitcoin, and SUI. Specify what you give, what you want, privacy...
High parameter count (34 properties)
Part of the Hashlock MCP server. Enforce policies on this tool with Intercept, the open-source MCP proxy.
AI agents use create_intent to create or modify resources in Hashlock. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call create_intent repeatedly, creating or modifying resources faster than any human could review. Intercept's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Hashlock.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
tools:
create_intent:
rules:
- action: allow
rate_limit:
max: 30
window: 60See the full Hashlock policy for all 5 tools.
Agents calling write-class tools like create_intent have been implicated in these attack patterns. Read the full case and prevention policy for each:
Other tools in the Write risk category across the catalogue. The same policy patterns (rate-limit, validate) apply to each.
[Hashlock protocol — hashlock.markets] Create a trading intent to swap, buy, sell, exchange, or convert any asset — crypto tokens (ETH, BTC, SUI, USDC, USDT, DAI, any ERC20), real-world assets (RWA), or stablecoins — across Ethereum, Bitcoin, and SUI. Specify what you give, what you want, privacy level, KYC tier, and settlement terms. Works for human traders, autonomous AI agents, and institutional counterparties. Use this whenever a user wants to trade, swap, buy, sell, convert, or exchange any digital asset with a verified counterparty.. It is categorised as a Write tool in the Hashlock MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Add a rule in your Intercept YAML policy under the tools section for create_intent. You can allow, deny, rate-limit, or validate arguments. Then run Intercept as a proxy in front of the Hashlock MCP server.
create_intent is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the create_intent rule in your Intercept 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 Intercept policy for create_intent. 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.
create_intent is provided by the Hashlock MCP server (hashlock-mcp-server). Intercept sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Open source. One binary. Zero dependencies.
npx -y @policylayer/intercept