Release a partial payment for proof-of-attempt and refund the remainder. This is a two-step operation: 1. Release X% to the worker (reward for attempting the task) 2. Refund (100-X)% to the agent Common use case: Worker attempted the task but couldn't fully complete it. Default is 15% release for...
Part of the Execution Market server.
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AI agents call em_escrow_partial_release to retrieve information from Execution Market without modifying any data. This is common in research, monitoring, and reporting workflows where the agent needs context before taking action. Because read operations don't change state, they are generally safe to allow without restrictions -- but you may still want rate limits to control API costs.
Even though em_escrow_partial_release only reads data, uncontrolled read access can leak sensitive information or rack up API costs. An agent caught in a retry loop could make thousands of calls per minute. A rate limit gives you a safety net without blocking legitimate use.
Read-only tools are safe to allow by default. No rate limit needed unless you want to control costs.
{
"version": "1",
"default": "deny",
"tools": {
"em_escrow_partial_release": {}
}
}See the full Execution Market policy for all 38 tools.
These attack patterns abuse exactly the kind of access em_escrow_partial_release gives an agent. Each links to the full case and the policy that stops it:
Other read tools across the catalogue. The same approach applies to each: allow, with a rate cap to control cost.
Release a partial payment for proof-of-attempt and refund the remainder. This is a two-step operation: 1. Release X% to the worker (reward for attempting the task) 2. Refund (100-X)% to the agent Common use case: Worker attempted the task but couldn't fully complete it. Default is 15% release for proof-of-attempt. Args: params: task_id, release_percent (1-99, default 15%) Returns: Both transaction results with amounts.. It is categorised as a Read tool in the Execution Market MCP Server, which means it retrieves data without modifying state.
Register the Execution Market MCP server in PolicyLayer and add a rule for em_escrow_partial_release: 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 Execution Market. Nothing to install.
em_escrow_partial_release is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the em_escrow_partial_release 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 em_escrow_partial_release. 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.
em_escrow_partial_release is provided by the Execution Market MCP server (https://mcp.execution.market/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 38 Execution Market tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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