# system_clear_cache

Clear system cache to free up memory.

Agent View of the PolicyLayer registry record for `system_clear_cache`. HTML page: https://policylayer.com/tools/aapanel-mcp/system-clear-cache

## Facts

- Tool: `system_clear_cache`
- Server: Aapanel (`nipunanirmal/aapanel-mcp`) — https://policylayer.com/tools/aapanel-mcp.md
- Homepage: https://github.com/nipunanirmal/aapanel-mcp
- Risk category: Destructive (Critical risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Hidden

## Example call (MCP tools/call, JSON-RPC 2.0)

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "system_clear_cache",
    "arguments": {}
  }
}
```

## Why system_clear_cache is rated Critical

Clearing system cache is an irreversible operation that permanently removes cached data from memory. While it doesn't delete persistent data, the cache cannot be recovered once cleared, making it a destructive action. Misuse could cause performance degradation or disrupt running services that rely on cached data.

From the tool's own definition: "Clear system cache to free up memory"

Risk signals: Admin/system-level operation

## Use case

AI agents call system_clear_cache to permanently remove resources in Aapanel, typically in cleanup and lifecycle workflows. It does its job in a single call, and there is no undo.

## Recommended policy (PolicyLayer)

Verdict: **Hidden**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Aapanel:

```json
{
  "version": "1",
  "default": "deny",
  "hide": [
    "system_clear_cache"
  ]
}
```

## Other tools on Aapanel (281)

- `backup_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/backup-delete.md
- `crontab_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/crontab-delete.md
- `cve_set_vuln_ignore` — Destructive — https://policylayer.com/tools/aapanel-mcp/cve-set-vuln-ignore.md
- `database_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/database-delete.md
- `database_delete_backup` — Destructive — https://policylayer.com/tools/aapanel-mcp/database-delete-backup.md
- `docker_image_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/docker-image-delete.md
- `file_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/file-delete.md
- `firewall_delete_ip` — Destructive — https://policylayer.com/tools/aapanel-mcp/firewall-delete-ip.md
- `firewall_delete_port` — Destructive — https://policylayer.com/tools/aapanel-mcp/firewall-delete-port.md
- `ftp_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/ftp-delete.md
- `harden_clear_temp_login` — Destructive — https://policylayer.com/tools/aapanel-mcp/harden-clear-temp-login.md
- `plugin_uninstall` — Destructive — https://policylayer.com/tools/aapanel-mcp/plugin-uninstall.md
- `project_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/project-delete.md
- `site_delete` — Destructive — https://policylayer.com/tools/aapanel-mcp/site-delete.md
- `site_delete_domain` — Destructive — https://policylayer.com/tools/aapanel-mcp/site-delete-domain.md
- `soft_uninstall` — Destructive — https://policylayer.com/tools/aapanel-mcp/soft-uninstall.md
- `ssl_delete_cert` — Destructive — https://policylayer.com/tools/aapanel-mcp/ssl-delete-cert.md
- `system_clear_all_cache` — Destructive — https://policylayer.com/tools/aapanel-mcp/system-clear-all-cache.md
- `system_clear_all_logs` — Destructive — https://policylayer.com/tools/aapanel-mcp/system-clear-all-logs.md
- `system_clear_old_sessions` — Destructive — https://policylayer.com/tools/aapanel-mcp/system-clear-old-sessions.md
- `system_clear_panel_logs` — Destructive — https://policylayer.com/tools/aapanel-mcp/system-clear-panel-logs.md
- `system_clear_site_logs` — Destructive — https://policylayer.com/tools/aapanel-mcp/system-clear-site-logs.md
- `tamper_remove_file_deny` — Destructive — https://policylayer.com/tools/aapanel-mcp/tamper-remove-file-deny.md
- `task_remove` — Destructive — https://policylayer.com/tools/aapanel-mcp/task-remove.md
- `waf_delete_rule` — Destructive — https://policylayer.com/tools/aapanel-mcp/waf-delete-rule.md
- `abnormal_check_all` — Execute — https://policylayer.com/tools/aapanel-mcp/abnormal-check-all.md
- `crontab_start` — Execute — https://policylayer.com/tools/aapanel-mcp/crontab-start.md
- `deployment_install` — Execute — https://policylayer.com/tools/aapanel-mcp/deployment-install.md
- `docker_container_restart` — Execute — https://policylayer.com/tools/aapanel-mcp/docker-container-restart.md
- `docker_container_start` — Execute — https://policylayer.com/tools/aapanel-mcp/docker-container-start.md
- …and 251 more: https://policylayer.com/tools/aapanel-mcp.md

## For agents

This record is a snapshot. Live verdicts and the full registry:

- Check every server in your MCP config at once: `npx -y policylayer stack`
- Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md)
- Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events`

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Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=aapanel-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/aapanel-mcp