# mysql_list_functions List all user-defined functions with return types and metadata. Agent View of the PolicyLayer registry record for `mysql_list_functions`. HTML page: https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-list-functions ## Facts - Tool: `mysql_list_functions` - 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: 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_list_functions", "arguments": {} } } ``` ## Why mysql_list_functions is rated Low This tool performs a read-only operation on the database catalog. It retrieves information about existing user-defined functions but does not execute them, modify them, or cause any side effects. The operation is informational in nature and poses minimal security risk even if invoked by an AI agent without proper authorization, as the worst outcome would be exposure of function metadata already within the database. From the tool's own definition: "Tool name 'mysql_list_functions' and description 'List all user-defined functions with return types and metadata' indicate a retrieval operation that queries database metadata without modification or execution of arbitrary code." Risk signals: Bulk/mass operation — affects multiple targets ## Use case AI agents call mysql_list_functions to retrieve information from Mysql Mcp 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 Mcp: ```json { "version": "1", "default": "deny", "tools": { "mysql_list_functions": {} } } ``` ## 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