fix(shell): explicitly set PAGER=cat when rcFile is not used

docs/reference/configuration.md

@@ -1452,6 +1452,11 @@ their corresponding top-level category object in your `settings.json` file.
     performance.
   - **Default:** `true`
 
+- **`tools.shell.rcFile`** (string):
+  - **Description:** The path to a bash file (e.g., .bashrc) to source before
+    executing shell commands.
+  - **Default:** `undefined`
+
 - **`tools.core`** (array):
   - **Description:** Restrict the set of built-in tools with an allowlist. Match
     semantics mirror tools.allowed; see the built-in tools documentation for

packages/core/src/tools/shell.ts

@@ -466,6 +466,8 @@ export class ShellToolInvocation extends BaseToolInvocation<
     const rcFilePath = this.context.config.getShellToolRcFile();
     if (rcFilePath) {
       strippedCommandWithRc = `source ${rcFilePath} && ${strippedCommand}`;
+    } else if (!isWindows) {
+      strippedCommandWithRc = `export PAGER=cat GIT_PAGER=cat; more() { cat "$@"; }; less() { cat "$@"; }; ${strippedCommand}`;
     }
 
     try {

schemas/settings.schema.json

@@ -2509,6 +2509,12 @@
               "markdownDescription": "Enable shell output efficiency optimizations for better performance.\n\n- Category: `Tools`\n- Requires restart: `no`\n- Default: `true`",
               "default": true,
               "type": "boolean"
+            },
+            "rcFile": {
+              "title": "Shell Tool RC File",
+              "description": "The path to a bash file (e.g., .bashrc) to source before executing shell commands.",
+              "markdownDescription": "The path to a bash file (e.g., .bashrc) to source before executing shell commands.\n\n- Category: `Tools`\n- Requires restart: `no`",
+              "type": "string"
             }
           },
           "additionalProperties": false