diff --git a/documentation/docs/guides/environment-variables.md b/documentation/docs/guides/environment-variables.md
index 53e1a85ce228..adef53f4f6a5 100644
--- a/documentation/docs/guides/environment-variables.md
+++ b/documentation/docs/guides/environment-variables.md
@@ -237,7 +237,7 @@ These variables control how goose handles [tool execution](/docs/guides/goose-pe
 | `GOOSE_TOOLSHIM_OLLAMA_MODEL` | Specifies the model for [tool call interpretation](/docs/experimental/ollama) | Model name (e.g. llama3.2, qwen2.5) | System default |
 | `GOOSE_CLI_MIN_PRIORITY` | Controls verbosity of [tool output](/docs/guides/managing-tools/adjust-tool-output) | Float between 0.0 and 1.0 | 0.0 |
 | `GOOSE_CLI_TOOL_PARAMS_TRUNCATION_MAX_LENGTH` | Maximum length for tool parameter values before truncation in CLI output (not in debug mode) | Integer | 40 |
-| `GOOSE_DEBUG` | Enables debug mode to show full tool parameters without truncation | "1", "true" (case insensitive) to enable | false |
+| `GOOSE_DEBUG` | Enables debug mode to show full tool parameters without truncation. Can also be toggled during a session using the `/r` [slash command](/docs/guides/goose-cli-commands#slash-commands) | "1", "true" (case insensitive) to enable | false |
 | `GOOSE_SEARCH_PATHS` | Additional directories to search for executables when running extensions | JSON array of paths (e.g., `["/usr/local/bin", "~/custom/bin"]`) | System PATH only | No |
 
 **Examples**
diff --git a/documentation/docs/guides/goose-cli-commands.md b/documentation/docs/guides/goose-cli-commands.md
index 40841620d143..2f5f3ffc4a2d 100644
--- a/documentation/docs/guides/goose-cli-commands.md
+++ b/documentation/docs/guides/goose-cli-commands.md
@@ -665,6 +665,7 @@ Once you're in an interactive session (via `goose session` or `goose run --inter
 - **`/prompts [--extension <name>]`** - List all available prompts, optionally filtered by extension
 - **`/recipe [filepath]`** - Generate a recipe from the current conversation and save it to the specified filepath (must end with .yaml). If no filepath is provided, it will be saved to ./recipe.yaml
 - **`/compact`** - Compact and summarize the current conversation to reduce context length while preserving key information
+- **`/r`** - Toggle full tool output display (show complete tool parameters without truncation)
 - **`/t`** - Toggle between `light`, `dark`, and `ansi` themes. [More info](#themes).
 - **`/t <name>`** - Set theme directly (light, dark, ansi)
 
diff --git a/documentation/docs/guides/managing-tools/adjust-tool-output.md b/documentation/docs/guides/managing-tools/adjust-tool-output.md
index 803fe32c3324..e9df074abbe7 100644
--- a/documentation/docs/guides/managing-tools/adjust-tool-output.md
+++ b/documentation/docs/guides/managing-tools/adjust-tool-output.md
@@ -83,5 +83,17 @@ Next, choose one of the available modes:
     - Shows all tool outputs
     - Example: Shell command outputs
     - Most verbose level
+
+### Toggle Parameter Truncation
+
+During an active session, use the `/r` slash command to toggle whether tool parameters are truncated or shown in full:
+
+```sh
+Context: ●○○○○○○○○○ 5% (9695/200000 tokens)
+( O)> /r
+✓ Full tool output enabled - tool parameters will no longer be truncated
+```
+
+This is useful when you need to see complete file paths, URLs, or command arguments. Type `/r` again to return to truncated output.
  </TabItem>
-</Tabs>
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+</Tabs>