Archive an article (soft delete). The article is hidden from search, context, and the index but the row is retained for audit/history. Works for drafts and published articles. REQUIRES LOOPCTL_USER_KEY (user role — orchestrator role is NOT sufficient for this destructive operation).
Part of the Loopctl server.
Free to start. No card required.
AI agents use knowledge_archive to create or modify resources in Loopctl. 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 knowledge_archive repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Loopctl.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"knowledge_archive": {
"limits": [
{
"counter": "knowledge_archive_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Loopctl policy for all 52 tools.
These attack patterns abuse exactly the kind of access knowledge_archive gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Archive an article (soft delete). The article is hidden from search, context, and the index but the row is retained for audit/history. Works for drafts and published articles. REQUIRES LOOPCTL_USER_KEY (user role — orchestrator role is NOT sufficient for this destructive operation).. It is categorised as a Write tool in the Loopctl MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Loopctl MCP server in PolicyLayer and add a rule for knowledge_archive: 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 Loopctl. Nothing to install.
knowledge_archive 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 knowledge_archive 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 knowledge_archive. 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.
knowledge_archive is provided by the Loopctl MCP server (loopctl-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 52 Loopctl tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.