// MCP TOOL REFERENCE

RAIN TOOLS

4 tools from the Rain MCP Server, categorised by risk level.

READ TOOLS

get_mappings Get field mappings for a specific Elasticsearch index get_shards Get shard information for all or specific indices list_indices List all available Elasticsearch indices search Perform an Elasticsearch search with the provided query DSL

// FAQ

How many tools does the Rain MCP server have? +

The Rain MCP server exposes 4 tools across 1 categories: Read.

How do I enforce policies on Rain tools? +

Use Intercept, the open-source MCP proxy. Write YAML rules for each tool — rate limits, argument validation, or deny rules — then run Intercept in front of the Rain server.

What risk categories do Rain tools fall into? +

Rain tools are categorised as Read (4). Each category has a recommended default policy.

Enforce policies on Rain

Open source. One binary. Zero dependencies.

npx -y @policylayer/intercept

github.com/policylayer/intercept →