# mysql_write_query Execute a write SQL query (INSERT, UPDATE, DELETE). Uses prepared statements for safety. Agent View of the PolicyLayer registry record for `mysql_write_query`. HTML page: https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-write-query ## Facts - Tool: `mysql_write_query` - Server: Mysql Mcp (`oci:docker.io/writenotenow/mysql-mcp:v1.0.0`) — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp.md - Homepage: https://github.com/neverinfamous/mysql-mcp.git - 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": "mysql_write_query", "arguments": {} } } ``` ## Why mysql_write_query is rated Medium This tool creates or modifies data reversibly through SQL write operations. While it uses prepared statements to mitigate injection risks, it permits INSERT, UPDATE, and DELETE operations that alter database state. It does not permit DROP or other irreversible schema changes (which would be Destructive), so it falls into Write category. From the tool's own definition: "Tool name 'mysql_write_query' and description explicitly states 'Execute a write SQL query (INSERT, UPDATE, DELETE)'" ## Use case AI agents use mysql_write_query to create or update resources in Mysql Mcp, usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Mysql Mcp environment. ## Recommended policy (PolicyLayer) Verdict: **Rate-limited**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches Mysql Mcp: ```json { "version": "1", "default": "deny", "tools": { "mysql_write_query": { "limits": [ { "counter": "mysql_write_query_rate", "window": "minute", "max": 30, "scope": "grant" } ] } } } ``` ## Other tools on Mysql Mcp (222) - `mysql_audit_restore_backup` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-audit-restore-backup.md - `mysql_cascade_simulator` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-cascade-simulator.md - `mysql_doc_drop_collection` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-doc-drop-collection.md - `mysql_doc_remove` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-doc-remove.md - `mysql_drop_partition` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-drop-partition.md - `mysql_drop_schema` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-drop-schema.md - `mysql_drop_table` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-drop-table.md - `mysql_drop_view` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-drop-view.md - `mysql_event_drop` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-event-drop.md - `mysql_force_index` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-force-index.md - `mysql_fulltext_drop` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-fulltext-drop.md - `mysql_json_remove` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-json-remove.md - `mysql_migration_rollback` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-migration-rollback.md - `mysql_role_drop` — Destructive — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-role-drop.md - `mysql_analyze_table` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-analyze-table.md - `mysql_create_dump` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-create-dump.md - `mysql_event_create` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-event-create.md - `mysql_flush_tables` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-flush-tables.md - `mysql_json_merge` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-json-merge.md - `mysql_migration_apply` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-migration-apply.md - `mysql_optimize_table` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-optimize-table.md - `mysql_spatial_intersection` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-spatial-intersection.md - `mysql_spatial_transform` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-spatial-transform.md - `mysql_stats_row_number` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-stats-row-number.md - `mysql_transaction_begin` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-transaction-begin.md - `mysql_transaction_execute` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-transaction-execute.md - `mysqlsh_run_script` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysqlsh-run-script.md - `proxysql_commands` — Execute — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/proxysql-commands.md - `mysql_audit_diff_backup` — Read — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-audit-diff-backup.md - `mysql_audit_list_backups` — Read — https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-audit-list-backups.md - …and 192 more: https://policylayer.com/tools/io-github-neverinfamous-mysql-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=io-github-neverinfamous-mysql-mcp · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-neverinfamous-mysql-mcp