# mysql_topological_sort

Get tables in safe DDL execution order.

Agent View of the PolicyLayer registry record for `mysql_topological_sort`. HTML page: https://policylayer.com/tools/io-github-neverinfamous-mysql-mcp/mysql-topological-sort

## Facts

- Tool: `mysql_topological_sort`
- 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_topological_sort",
    "arguments": {}
  }
}
```

## Why mysql_topological_sort is rated Low

This tool retrieves and sorts table metadata information to determine safe DDL execution order. It is purely informational with no side effects—no data is modified, deleted, or executed. This is a read operation that queries the database schema structure.

From the tool's own definition: "Tool name 'mysql_topological_sort' and description 'Get tables in safe DDL execution order' indicate a query/retrieval operation."

## Use case

AI agents call mysql_topological_sort 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_topological_sort": {}
  }
}
```

## 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