Remove contacts from a sequence. Provide sequence ID and contact IDs.
AI agents call remove_from_sequence to permanently remove resources in Apollo Io MCP Server — typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Removing contacts from a sequence disrupts ongoing automated outreach workflows. Once removed, the contact's position, history, and scheduled steps within that sequence are lost. This is effectively irreversible without manually re-adding and reconfiguring each contact, making it Destructive. The blast radius is high because bulk removal could derail active sales campaigns affecting many contacts simultaneously.
From the tool's definition 'Remove contacts from a sequence' — removing contacts from a sequence is an irreversible action that cannot be easily undone, as the sequence state and progress for those contacts is lost.
Attacks that exploit this kind of access
Remove contacts from a sequence. Provide sequence ID and contact IDs. It is categorised as a Destructive tool in the Apollo Io MCP Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Apollo Io MCP Server MCP server in PolicyLayer and add a rule for remove_from_sequence: 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 Apollo Io MCP Server. Nothing to install.
remove_from_sequence 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 remove_from_sequence 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 remove_from_sequence. 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.
remove_from_sequence is provided by the Apollo Io MCP Server MCP server (masridigital/apollo.io-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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