add_exclusion_rule
v2.1.0 \u2014 Add a content-pattern exclusion rule (do_not_remember). Hard-deletes existing matches (per
This record as markdown: /tools/danielsimonjr-memory-mcp/add-exclusion-rule.md
What add_exclusion_rule does on Enhanced Knowledge Graph Memory Server
AI agents call add_exclusion_rule to permanently remove resources in Enhanced Knowledge Graph Memory Server, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.
Why add_exclusion_rule is rated Critical
The tool not only adds an exclusion rule for future content filtering but also hard-deletes existing matching entries in the knowledge graph. Hard deletion is irreversible, making this Destructive. Severity is high because misuse could permanently remove significant portions of stored knowledge without recovery.
From the tool's definition Hard-deletes existing matches (per [description])
Attacks that exploit this kind of access
The rule that runs add_exclusion_rule safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Enhanced Knowledge Graph Memory Server, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For add_exclusion_rule, this is the rule to start with:
add_exclusion_rule 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 Enhanced Knowledge Graph Memory Server, apply this rule, and every add_exclusion_rule call is checked against it from then on.
Questions about add_exclusion_rule
v2.1.0 \u2014 Add a content-pattern exclusion rule (do_not_remember). Hard-deletes existing matches (per. It is categorised as a Destructive tool in the Enhanced Knowledge Graph Memory Server MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Enhanced Knowledge Graph Memory Server MCP server in PolicyLayer and add a rule for add_exclusion_rule: 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 Enhanced Knowledge Graph Memory Server. Nothing to install.
add_exclusion_rule 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 add_exclusion_rule 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 add_exclusion_rule. 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.
add_exclusion_rule is provided by the Enhanced Knowledge Graph Memory Server MCP server (danielsimonjr/memory-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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