# mysql_triggers_by_event

Show triggers grouped by event type or action.

Agent View of the PolicyLayer registry record for `mysql_triggers_by_event`. HTML page: https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-triggers-by-event

## Facts

- Tool: `mysql_triggers_by_event`
- Server: Mysql (`mukul975/mysql-mcp-server`) — https://policylayer.com/tools/mukul975-mysql-mcp-server.md
- Homepage: https://github.com/mukul975/mysql-mcp-server
- Risk category: Read (Low risk)
- Registry record: grade F, identity unverified
- Server rate-limited: no
- Parameters: 0
- Recommended policy verdict: Allowed

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

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

## Why mysql_triggers_by_event is rated Low

This tool retrieves and displays existing trigger metadata without creating, modifying, deleting, or executing any database objects. It is purely informational, returning information about triggers organized by their event type or action. The server description explicitly mentions 'read-only queries', and this tool fits that profile. No data modification, deletion, or code execution occurs.

From the tool's own definition: "Tool name 'mysql_triggers_by_event' and description 'Show triggers grouped by event type or action' indicates a query/retrieval operation with no modification capability. The verb 'show' and 'grouped by' are consistent with read-only metadata inspection."

## Use case

AI agents call mysql_triggers_by_event to retrieve information from Mysql without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.

## Recommended policy (PolicyLayer)

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

```json
{
  "version": "1",
  "default": "deny",
  "tools": {
    "mysql_triggers_by_event": {}
  }
}
```

## Other tools on Mysql (232)

- `drop_event` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/drop-event.md
- `drop_partition` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/drop-partition.md
- `drop_role` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/drop-role.md
- `drop_stored_function` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/drop-stored-function.md
- `drop_stored_procedure` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/drop-stored-procedure.md
- `mysql_alter_table_drop_column` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-alter-table-drop-column.md
- `mysql_delete_data` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-delete-data.md
- `mysql_drop_database` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-drop-database.md
- `mysql_drop_foreign_key` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-drop-foreign-key.md
- `mysql_drop_index` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-drop-index.md
- `mysql_drop_primary_key` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-drop-primary-key.md
- `mysql_drop_table` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-drop-table.md
- `mysql_drop_user` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-drop-user.md
- `mysql_drop_view` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-drop-view.md
- `mysql_kill_process` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-kill-process.md
- `mysql_reset_query_cache` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-reset-query-cache.md
- `mysql_revoke_privileges` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-revoke-privileges.md
- `mysql_truncate_table` — Destructive — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-truncate-table.md
- `create_event` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/create-event.md
- `create_stored_procedure` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/create-stored-procedure.md
- `mysql_analyze_table` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-analyze-table.md
- `mysql_auto_index_rebuild_scheduler` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-auto-index-rebuild-scheduler.md
- `mysql_flush_logs` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-flush-logs.md
- `mysql_flush_privileges` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-flush-privileges.md
- `mysql_flush_tables` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-flush-tables.md
- `mysql_lock_tables` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-lock-tables.md
- `mysql_optimize_table` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-optimize-table.md
- `mysql_repair_table` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-repair-table.md
- `mysql_set_variable` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-set-variable.md
- `mysql_unlock_tables` — Execute — https://policylayer.com/tools/mukul975-mysql-mcp-server/mysql-unlock-tables.md
- …and 202 more: https://policylayer.com/tools/mukul975-mysql-mcp-server.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=mukul975-mysql-mcp-server · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/mukul975-mysql-mcp-server
