# show_environment

Source: https://libtmux.org/en/swift/latest/mcp/tools/show_environment/

> Read the tmux environment; accepts no client-supplied executable input. Returned values may contain secrets. Read global or session tmux environment values.

MCP is in development

Server behavior and tool contracts may change. Tool availability depends on the server configuration.

Read the tmux environment; accepts no client-supplied executable input. Returned values may contain secrets. Read global or session tmux environment values.

[All Swift tools](https://libtmux.org/en/swift/latest/mcp/tools/) · [JSON](https://libtmux.org/en/swift/latest/mcp/tools/show_environment.json) · [Source](https://github.com/libtmux/libtmux-swift/blob/63551afeae8ea3d272e5262208b87735888daf5f/Sources/LibTmuxMCP/ToolOperation.swift#L16)

## Arguments

* `session` optional · string

  Caller-controlled session.

## Schemas

The schema defines required fields, nested values, defaults, and validation constraints.

Input schema

```json
{
  "additionalProperties": false,
  "properties": {
    "session": {
      "description": "Caller-controlled session.",
      "type": "string"
    }
  },
  "required": [],
  "type": "object"
}
```

Output schema

```json
{
  "additionalProperties": false,
  "properties": {
    "environment": {
      "additionalProperties": {
        "type": [
          "string",
          "null"
        ]
      },
      "type": "object"
    }
  },
  "required": [
    "environment"
  ],
  "type": "object"
}
```

Tool annotations

```json
{
  "destructiveHint": true,
  "idempotentHint": false,
  "openWorldHint": true,
  "readOnlyHint": false,
  "title": "Show environment"
}
```