# PostgreSQL MCP Server MCP server

Agent View of the PolicyLayer registry record for PostgreSQL MCP Server: identity, probed posture, risk grade, and all 5 tools classified. HTML page: https://policylayer.com/tools/aeiyannn-postgree-mcp

## Facts

- Server id: `aeiyannn/postgree-mcp`
- Homepage: https://github.com/aeiyannn/postgree-mcp
- Registry record: grade C, identity unverified
- Lifecycle: active
- Rate-limited: no
- Tools: 5
- Tool categories present: Execute, Read
- Tags: aeiyannn postgree mcp, automation
- Record last modified: 2026-07-03T17:18:55.480Z

## Tools (5)

| Tool | Category | Risk | Record |
| --- | --- | --- | --- |
| `execute` | Destructive | Critical | https://policylayer.com/tools/aeiyannn-postgree-mcp/execute.md |
| `describe_table` | Read | Low | https://policylayer.com/tools/aeiyannn-postgree-mcp/describe-table.md |
| `list_schemas` | Read | Low | https://policylayer.com/tools/aeiyannn-postgree-mcp/list-schemas.md |
| `list_tables` | Read | Low | https://policylayer.com/tools/aeiyannn-postgree-mcp/list-tables.md |
| `query` | Read | Low | https://policylayer.com/tools/aeiyannn-postgree-mcp/query.md |

## Tool descriptions

- `execute` — Execute a write SQL statement (INSERT, UPDATE, DELETE, CREATE, ALTER, DROP, etc.) against the PostgreSQL database.
- `describe_table` — Describe the columns and types of a specific table.
- `list_schemas` — List all schemas in the current database.
- `list_tables` — List all tables in the current database (public schema by default).
- `query` — Execute a read-only SQL query against the PostgreSQL database. Use this for SELECT, SHOW, EXPLAIN statements.

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## 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=aeiyannn-postgree-mcp · API: https://policylayer.com/registry/api · Recommended policies for every tool: https://policylayer.com/policies/aeiyannn-postgree-mcp