Clean up old session files to save disk space
Part of the Tachibot server.
Free to start. No card required.
AI agents may call focus_clear_old_sessions to permanently remove or destroy resources in Tachibot. Without a policy, an autonomous agent could delete critical data in a loop with no way to undo the damage. PolicyLayer blocks destructive tools by default and requires explicit human approval before enabling them.
Without a policy, an AI agent could call focus_clear_old_sessions in a loop, permanently destroying resources in Tachibot. There is no undo for destructive operations. PolicyLayer blocks this tool by default and only allows it when a human explicitly approves the action.
Destructive tools permanently remove data. Block by default. Only enable with explicit approval workflows.
{
"version": "1",
"default": "deny",
"hide": [
"focus_clear_old_sessions"
]
}See the full Tachibot policy for all 104 tools.
These attack patterns abuse exactly the kind of access focus_clear_old_sessions gives an agent. Each links to the full case and the policy that stops it:
Other destructive tools across the catalogue. The same approach applies to each: deny by default, or require human approval.
Clean up old session files to save disk space. It is categorised as a Destructive tool in the Tachibot MCP Server, which means it can permanently delete or destroy data. Block by default and require explicit approval.
Register the Tachibot MCP server in PolicyLayer and add a rule for focus_clear_old_sessions: 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 Tachibot. Nothing to install.
focus_clear_old_sessions 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 focus_clear_old_sessions 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 focus_clear_old_sessions. 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.
focus_clear_old_sessions is provided by the Tachibot MCP server (tachibot-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 104 Tachibot tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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