Lens-MCP
by Hqzdev
Server Configuration
Describes the environment variables required to run the server.
| Name | Required | Description | Default |
|---|---|---|---|
| LENS_SCHEMA_NAME | No | Schema used by introspection and table samples | public |
| LENS_DATABASE_URL | Yes | Postgres connection URL | |
| LENS_MAX_ROW_LIMIT | No | Maximum allowed limit | 1000 |
| LENS_ALLOWED_TABLES | Yes | Comma-separated allow-list such as public.customers,public.orders | |
| LENS_DEFAULT_ROW_LIMIT | No | Limit added when a query has no limit | 100 |
| LENS_STATEMENT_TIMEOUT_MS | No | Postgres statement timeout | 5000 |
Capabilities
Features and capabilities supported by this server
| Capability | Details |
|---|---|
| tools | {
"listChanged": false
} |
| prompts | {
"listChanged": false
} |
| resources | {
"subscribe": false,
"listChanged": false
} |
| experimental | {} |
Tools
Functions exposed to the LLM to take actions
| Name | Description |
|---|---|
| list_tablesD | – |
| describe_tableD | – |
| sample_tableD | – |
| queryD | – |
Prompts
Interactive templates invoked by user choice
| Name | Description |
|---|---|
No prompts | |
Resources
Contextual data attached and managed by the client
| Name | Description |
|---|---|
No resources | |
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