// SCAN REPORT

PostGIS Yukon MCP

47 tools. 11 can modify or destroy data without limits.

2 destructive tools with no built-in limits. Policy required.

Last updated: 29 Jun 2026

11 can modify or destroy data

36 read-only

47 tools total

Community server · catalogue entry verified 29/06/2026

How to control PostGIS Yukon MCP ↓

TOOL MAP

What PostGIS Yukon MCP exposes to your agents

Read (36) Write / Execute (9) Destructive / Financial (2)

Running more than one server? Check your whole stack →

MOST DANGEROUS TOOLS

Critical Risk

The most dangerous PostGIS Yukon MCP tools

Destructive · High vanna_cancel_training 取消训练会话 Destructive · High vanna_remove_training_data 删除指定的训练数据 Execute · Medium execute_sql execute_sql Execute · Medium transform_coords 转换几何坐标系统

11 of PostGIS Yukon MCP's 47 tools can modify, destroy, or commit something on every call — and an agent calls them with no built-in limits.

POLICY

How to control PostGIS Yukon MCP

PolicyLayer is an MCP gateway — it sits between your AI agents and PostGIS Yukon MCP, and nothing reaches the server without passing your rules. These are the rules we recommend:

Deny destructive operations

{
  "vanna_cancel_training": {
    "deny_if": [
      {
        "conditions": [],
        "on_deny": "Blocked by default. Requires approval."
      }
    ]
  }
}

Destructive tools should never be available to autonomous agents without human approval.

Rate limit write operations

{
  "create_index": {
    "limits": [
      {
        "counter": "create_index_per_hour",
        "window": "hour",
        "max": 30,
        "scope": "grant"
      }
    ]
  }
}

Prevents bulk unintended modifications from agents caught in loops.

Cap read operations

{
  "analyze": {
    "limits": [
      {
        "counter": "analyze_per_minute",
        "window": "minute",
        "max": 60,
        "scope": "grant"
      }
    ]
  }
}

Controls API costs and prevents retry loops from exhausting upstream rate limits.

Create a free account and register PostGIS Yukon MCP — nothing to install.
Add these rules — paste them, or build them visually. Tune the limits to your setup.
Point your MCP client (Claude, Cursor, anything) at your gateway URL.

ENFORCE POLICY ON POSTGIS YUKON →

Instant setup, no code required.

FULL CATALOGUE

All 47 PostGIS Yukon MCP tools

DESTRUCTIVE 2 tools

Destructive vanna_cancel_training 取消训练会话 Destructive vanna_remove_training_data 删除指定的训练数据

EXECUTE 2 tools

Execute execute_sql execute_sql Execute transform_coords 转换几何坐标系统

WRITE 7 tools

Write create_index 为空间列创建 GIST 索引 Write generate_voronoi 生成 Voronoi 多边形 Write import_geojson_file import_geojson_file Write import_png 导入 PNG 图像作为地理配准栅格 Write import_shp import_shp Write import_tif import_tif Write vanna_generate_sql vanna_generate_sql

READ 36 tools

Read analyze 分析表以更新统计信息 Read buffer_geometry 创建几何缓冲区 Read cluster_spatial 使用 DBSCAN 进行空间聚类 Read compute_convex_hull 计算表中所有几何对象的凸包 Read discover_spatial_tables 发现包含空间字段的表 Read find_nearest 查找最近的K个邻居 Read get_area 计算几何面积 Read get_centroid 计算几何对象的质心 Read get_length 计算几何长度 Read get_supported_formats 列出所有支持的数据导入格式 Read interpolate_line 沿线段插值点 Read join_spatial 执行空间连接操作 Read list_extensions 列出数据库中已安装的所有扩展 Read measure_distance 计算两个几何对象之间的距离 Read nl_to_sql nl_to_sql Read postgis_version 获取 PostGIS 版本信息 Read query_attribute 根据属性查询地理要素 Read query_bbox 查询边界框内的地理要素 Read query_nearby 查询指定坐标附近的地理要素 Read simplify_geom 简化几何对象 Read snap_geometry 将几何对象捕捉到网格 Read spatial_extent 获取表的空间范围 Read split_line 使用点分割线段 Read table_info 获取表的详细空间信息 Read test_containment 检查一个几何对象是否包含另一个 Read test_intersection 检查两个几何对象是否相交 Read union_geoms 合并多个几何对象 Read vacuum 清理表以回收空间 Read validate_geometries 检查表中几何对象的有效性 Read vanna_ask vanna_ask Read vanna_confirm_training 确认并执行训练 Read vanna_get_training_data 获取Vanna模型的训练数据 Read vanna_init vanna_init Read vanna_train_ddl vanna_train_ddl Read vanna_train_documentation vanna_train_documentation Read vanna_train_sql_example vanna_train_sql_example

EXPLORE

Related servers

Other MCP servers with similar tools — same risk classification, starter policies for each.

FAQ

Questions about PostGIS Yukon MCP

Can an AI agent delete data through the PostGIS Yukon MCP server? +

Yes. The PostGIS Yukon MCP server exposes 2 destructive tools including vanna_cancel_training, vanna_remove_training_data. These permanently remove resources with no undo. PolicyLayer blocks destructive tools by default so they never reach the upstream server.

How do I prevent bulk modifications through PostGIS Yukon MCP? +

The PostGIS Yukon MCP server has 7 write tools including create_index, generate_voronoi, import_geojson_file. Set a rate limit in your policy -- for example, 10 calls per hour prevents an agent from making more than 10 modifications per hour. PolicyLayer enforces this at the gateway, before calls reach PostGIS Yukon MCP.

How many tools does the PostGIS Yukon MCP server expose? +

47 tools across 4 categories: Destructive, Execute, Read, Write. 36 are read-only. 11 can modify, create, or delete data.

How do I enforce a policy on PostGIS Yukon MCP? +

Register the PostGIS Yukon MCP server in PolicyLayer, apply the suggested rules above (adjust the limits to your use case), and point your AI client at the PolicyLayer proxy URL instead of the server directly. Your agents keep the same tools; PolicyLayer evaluates every call against policy before it executes. Nothing to install, live in minutes.

Enforce policy on every PostGIS Yukon MCP tool call.

Deterministic rules across all 47 PostGIS Yukon MCP tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.

ENFORCE POLICY ON POSTGIS YUKON →

Instant setup, no code required.

47 PostGIS Yukon MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.