delete_line
Delete a line and every endpoint under it. Requires edit access.
This record as markdown: /tools/dev-echorelay-management/delete-line.md
What delete_line does on EchoRelay
AI agents call delete_line to permanently remove resources in EchoRelay, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
| Parameter | Type | Required | Description |
|---|---|---|---|
lineKey | string | Yes | The line key, e.g. "v1". |
Parameters from the server's own tool schema.
Why delete_line is rated Critical
This tool permanently removes data (a line and its endpoints) with no undo or recovery mechanism mentioned. This satisfies the Destructive category definition: 'irreversibly deletes or overwrites data, or actions that cannot be undone'. The blast radius is high because deletion of an entire line and all endpoints could disrupt relay infrastructure and services.
From the tool's definition Tool name explicitly includes 'delete' and description states 'Delete a line and every endpoint under it' — irreversible removal of a line and all its dependent endpoints.
Risk signalsBulk/mass operation — affects multiple targets
Attacks that exploit this kind of access
The rule that runs delete_line safely
PolicyLayer is an MCP gateway: it sits between your AI agents and EchoRelay, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For delete_line, this is the rule to start with:
delete_line 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 EchoRelay, apply this rule, and every delete_line call is checked against it from then on.
Questions about delete_line
Delete a line and every endpoint under it. Requires edit access. It is categorised as a Destructive tool in the EchoRelay MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
delete_line accepts 1 parameter: lineKey. Required: lineKey. The full parameter table on this page comes from the server's own tool schema.
Register the EchoRelay MCP server in PolicyLayer and add a rule for delete_line: 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 EchoRelay. Nothing to install.
delete_line 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 delete_line 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 delete_line. 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.
delete_line is provided by the EchoRelay MCP server (https://mcp.echorelay.dev). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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