# install_stackcache_plugin

Install StackCache plugin for WordPress

Agent View of the PolicyLayer registry record for `install_stackcache_plugin`. HTML page: https://policylayer.com/tools/cbrown35-20i-mcp/install-stackcache-plugin

## Facts

- Tool: `install_stackcache_plugin`
- Server: 20i MCP Server (`cbrown35/20i-mcp`) — https://policylayer.com/tools/cbrown35-20i-mcp.md
- Homepage: https://github.com/Cbrown35/20i-MCP
- Risk category: Write (Medium risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Rate-limited

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

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

## Why install_stackcache_plugin is rated Medium

This tool creates/installs a software component (StackCache plugin) into a WordPress installation. Installation is a reversible modification operation (the plugin can be uninstalled), so it falls under Write rather than Destructive. The blast radius is medium because incorrect plugin installation could degrade site performance or cause compatibility issues, but the action is non-destructive and can be undone.

From the tool's own definition: "Tool name 'install_stackcache_plugin' and description 'Install StackCache plugin for WordPress' indicate a plugin installation action that modifies the WordPress environment by adding a caching plugin."

## Use case

AI agents use install_stackcache_plugin to create or update resources in 20i MCP Server, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your 20i MCP Server environment.

## Recommended policy (PolicyLayer)

Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches 20i MCP Server:

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "install_stackcache_plugin": {
      "limits": [
        {
          "counter": "install_stackcache_plugin_rate",
          "window": "minute",
          "max": 30,
          "scope": "grant"
        }
      ]
    }
  }
}
```

## Other tools on 20i MCP Server (301)

- `deactivate_package` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/deactivate-package.md
- `deactivate_vps` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/deactivate-vps.md
- `delete_application` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/delete-application.md
- `delete_cdn_security_headers` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/delete-cdn-security-headers.md
- `delete_easy_builder_instance` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/delete-easy-builder-instance.md
- `delete_hosting_package` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/delete-hosting-package.md
- `delete_mssql_database` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/delete-mssql-database.md
- `delete_package` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/delete-package.md
- `manage_directories` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/manage-directories.md
- `manage_wordpress_plugin` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/manage-wordpress-plugin.md
- `purge_cdn_cache` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/purge-cdn-cache.md
- `rebuild_vps` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/rebuild-vps.md
- `reinstall_software` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/reinstall-software.md
- `reinstall_wordpress` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/reinstall-wordpress.md
- `remove_country_block` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/remove-country-block.md
- `remove_ip_block` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/remove-ip-block.md
- `remove_mssql_user` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/remove-mssql-user.md
- `remove_ssl_certificates` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/remove-ssl-certificates.md
- `remove_stack_user_from_package` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/remove-stack-user-from-package.md
- `remove_subdomain` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/remove-subdomain.md
- `reset_managed_vps_profile` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/reset-managed-vps-profile.md
- `restore_ftp_backup` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/restore-ftp-backup.md
- `restore_snapshot` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/restore-snapshot.md
- `shutdown_vps` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/shutdown-vps.md
- `suspend_package` — Destructive — https://policylayer.com/tools/cbrown35-20i-mcp/suspend-package.md
- `activate_vps` — Execute — https://policylayer.com/tools/cbrown35-20i-mcp/activate-vps.md
- `change_vps_root_password` — Execute — https://policylayer.com/tools/cbrown35-20i-mcp/change-vps-root-password.md
- `clone_wordpress_staging` — Execute — https://policylayer.com/tools/cbrown35-20i-mcp/clone-wordpress-staging.md
- `deploy_application` — Execute — https://policylayer.com/tools/cbrown35-20i-mcp/deploy-application.md
- `deploy_website_complete` — Execute — https://policylayer.com/tools/cbrown35-20i-mcp/deploy-website-complete.md
- …and 271 more: https://policylayer.com/tools/cbrown35-20i-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`

---

Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=cbrown35-20i-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/cbrown35-20i-mcp