diff --git a/.changeset/tab-completions.md b/.changeset/tab-completions.md
new file mode 100644
index 00000000000..a02d23abd15
--- /dev/null
+++ b/.changeset/tab-completions.md
@@ -0,0 +1,5 @@
+---
+"webpack-cli": minor
+---
+
+feat: add shell completions for zsh, bash, fish and powershell through the `complete` command
diff --git a/.cspell.json b/.cspell.json
index c79593fbea6..565018f91da 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -106,7 +106,8 @@
     "Zenitsu",
     "quickstart",
     "pinia",
-    "watchpack"
+    "watchpack",
+    "zsh"
   ],
   "dictionaries": ["npm", "software-terms"],
   "ignorePaths": [
diff --git a/README.md b/README.md
index 0885c87a284..0c50d6efbcb 100644
--- a/README.md
+++ b/README.md
@@ -26,6 +26,7 @@
 - [Packages](#packages)
   - [Commands](#commands)
 - [Getting started](#getting-started)
+- [Shell completion](#shell-completion)
 - [Exit codes and their meanings](#exit-codes-and-their-meanings)
 - [Contributing and Internal Documentation](#contributing-and-internal-documentation)
 - [Funding](#funding)
@@ -58,6 +59,7 @@ Supporting developers is an important task for webpack CLI.
 Thus, webpack CLI provides different commands for many common tasks.
 
 - [`build|bundle|b [entries...] [options]`](https://webpack.js.org/api/cli/#build) - Run webpack (default command, can be omitted).
+- `complete [shell]` - Print a shell completion script, see [Shell completion](#shell-completion).
 - [`configtest|t [config-path]`](https://webpack.js.org/api/cli/#configtest) - Validate a webpack configuration.
 - [`help|h [command] [option]`](https://webpack.js.org/api/cli/#help) - Display help for commands and options.
 - [`info|i [options]`](https://webpack.js.org/api/cli/#info) - Returns information related to the local environment.
@@ -79,6 +81,41 @@ npx create-webpack-app init
 
 You will then be prompted for some questions about which features you want to use, such as `scss`, `typescript`, `PWA` support or other features.
 
+## Shell completion
+
+Commands, their options and the values those options accept can be completed in `zsh`, `bash`, `fish` and `powershell`. The completions are read from webpack's own schema, so they cover whatever your webpack and `webpack-dev-server` versions support.
+
+Completion is served by [`@bomb.sh/tab`](https://www.npmjs.com/package/@bomb.sh/tab), which is optional and not installed with `webpack-cli`:
+
+```sh
+npm install --save-dev @bomb.sh/tab
+```
+
+Then load the script for your shell:
+
+```sh
+# zsh
+echo 'source <(webpack complete zsh)' >> ~/.zshrc
+
+# bash
+echo 'source <(webpack complete bash)' >> ~/.bashrc
+
+# fish
+webpack complete fish > ~/.config/fish/completions/webpack.fish
+
+# powershell
+webpack complete powershell > ~/.webpack-completion.ps1
+echo '. ~/.webpack-completion.ps1' >> $PROFILE
+```
+
+Once the shell is restarted, `Tab` completes commands, their aliases, options and option values:
+
+```sh
+webpack b<Tab>              # webpack build
+webpack build --mode=<Tab>  # development, production, none
+webpack serve --his<Tab>    # webpack serve --history-api-fallback
+```
+
 ## Exit codes and their meanings
 
 | Exit Code | Description                                        |
diff --git a/package-lock.json b/package-lock.json
index 3d9eeff34e8..8ddebfa27b3 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -13,6 +13,7 @@
         "@babel/core": "^8.0.1",
         "@babel/preset-env": "^8.0.2",
         "@babel/register": "^8.0.1",
+        "@bomb.sh/tab": "^0.0.22",
         "@changesets/cli": "^3.0.1",
         "@changesets/get-github-info": "^1.0.0",
         "@swc/core": "^1.16.1",
@@ -1557,6 +1558,32 @@
         "node": ">=18"
       }
     },
+    "node_modules/@bomb.sh/tab": {
+      "version": "0.0.22",
+      "resolved": "https://registry.npmjs.org/@bomb.sh/tab/-/tab-0.0.22.tgz",
+      "integrity": "sha512-l5IuWpV7szqG4MM6A7I+qPMmP2qPMq2TD4veIXaOH0sD53dV0Tv8WZPARp5O5Kp4+y4fnVCl3VL1HZKNghO1yg==",
+      "devOptional": true,
+      "license": "MIT",
+      "bin": {
+        "tab": "dist/bin/cli.mjs"
+      },
+      "peerDependencies": {
+        "cac": "^6.7.14 || ^7.0.0",
+        "citty": "^0.1.6 || ^0.2.0",
+        "commander": "^13.1.0 || ^14.0.0 || ^15.0.0"
+      },
+      "peerDependenciesMeta": {
+        "cac": {
+          "optional": true
+        },
+        "citty": {
+          "optional": true
+        },
+        "commander": {
+          "optional": true
+        }
+      }
+    },
     "node_modules/@changesets/apply-release-plan": {
       "version": "8.0.0",
       "resolved": "https://registry.npmjs.org/@changesets/apply-release-plan/-/apply-release-plan-8.0.0.tgz",
@@ -21268,7 +21295,7 @@
       }
     },
     "packages/create-webpack-app": {
-      "version": "2.1.0",
+      "version": "2.2.0",
       "license": "MIT",
       "dependencies": {
         "@inquirer/expand": "^5.1.3",
@@ -21304,7 +21331,7 @@
       }
     },
     "packages/webpack-cli": {
-      "version": "7.2.2",
+      "version": "7.2.3",
       "license": "MIT",
       "dependencies": {
         "@discoveryjs/json-ext": "^1.1.0",
@@ -21330,6 +21357,7 @@
         "url": "https://opencollective.com/webpack"
       },
       "peerDependencies": {
+        "@bomb.sh/tab": "^0.0.22",
         "js-yaml": "^4.0.0 || ^5.0.0",
         "json5": "^2.2.3",
         "toml": "^3.0.0 || ^4.0.0 || ^5.0.0",
@@ -21338,6 +21366,9 @@
         "webpack-dev-server": "^5.0.0 || ^6.0.0"
       },
       "peerDependenciesMeta": {
+        "@bomb.sh/tab": {
+          "optional": true
+        },
         "js-yaml": {
           "optional": true
         },
diff --git a/package.json b/package.json
index b51ce36f861..3d515e67e01 100644
--- a/package.json
+++ b/package.json
@@ -48,6 +48,7 @@
     "prepare": "husky"
   },
   "devDependencies": {
+    "@bomb.sh/tab": "^0.0.22",
     "@babel/core": "^8.0.1",
     "@babel/preset-env": "^8.0.2",
     "@babel/register": "^8.0.1",
diff --git a/packages/webpack-cli/README.md b/packages/webpack-cli/README.md
index b32696c8224..064f9def5c4 100644
--- a/packages/webpack-cli/README.md
+++ b/packages/webpack-cli/README.md
@@ -64,6 +64,7 @@ npx webpack-cli --help verbose
 
 ```
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
diff --git a/packages/webpack-cli/package.json b/packages/webpack-cli/package.json
index ad6dba55219..457588ec62a 100644
--- a/packages/webpack-cli/package.json
+++ b/packages/webpack-cli/package.json
@@ -44,6 +44,7 @@
     "@types/envinfo": "^7.8.4"
   },
   "peerDependencies": {
+    "@bomb.sh/tab": "^0.0.22",
     "js-yaml": "^4.0.0 || ^5.0.0",
     "json5": "^2.2.3",
     "toml": "^3.0.0 || ^4.0.0 || ^5.0.0",
@@ -52,6 +53,9 @@
     "webpack-dev-server": "^5.0.0 || ^6.0.0"
   },
   "peerDependenciesMeta": {
+    "@bomb.sh/tab": {
+      "optional": true
+    },
     "js-yaml": {
       "optional": true
     },
diff --git a/packages/webpack-cli/src/webpack-cli.ts b/packages/webpack-cli/src/webpack-cli.ts
index f43b06b0879..8a324a51054 100644
--- a/packages/webpack-cli/src/webpack-cli.ts
+++ b/packages/webpack-cli/src/webpack-cli.ts
@@ -4,6 +4,7 @@ import path from "node:path";
 import { type Readable as ReadableType } from "node:stream";
 import { fileURLToPath, pathToFileURL } from "node:url";
 import util from "node:util";
+import { type RootCommand } from "@bomb.sh/tab";
 import { type stringifyChunked as stringifyChunkedType } from "@discoveryjs/json-ext";
 import {
   type Command as CommanderCommand,
@@ -40,6 +41,7 @@ const WEBPACK_DEV_SERVER_PACKAGE_IS_CUSTOM = Boolean(process.env.WEBPACK_DEV_SER
 const WEBPACK_DEV_SERVER_PACKAGE = WEBPACK_DEV_SERVER_PACKAGE_IS_CUSTOM
   ? (process.env.WEBPACK_DEV_SERVER_PACKAGE as string)
   : "webpack-dev-server";
+const COMPLETION_PACKAGE = "@bomb.sh/tab";
 
 // `webpack-dev-server` v6 is ESM and exposes the server as its `default` export,
 // while v5 exports it directly
@@ -157,6 +159,7 @@ interface KnownWebpackCLICommands {
   help: CommandOptions<void, CommanderArgs, Context>;
   info: CommandOptions<void, CommanderArgs, Context>;
   configtest: CommandOptions<string | undefined, CommanderArgs, WebpackContext & Context>;
+  complete: CommandOptions<void, CommanderArgs, Context>;
 }
 
 // eslint-disable-next-line @typescript-eslint/no-explicit-any
@@ -585,6 +588,12 @@ class WebpackCLI {
     return str.length > 0 ? str.charAt(0).toUpperCase() + str.slice(1) : str;
   }
 
+  #commandTerm(command: CommanderCommand): string {
+    const aliases = command.aliases().filter(Boolean);
+
+    return aliases.length > 0 ? `${command.name()}|${aliases.join("|")}` : command.name();
+  }
+
   toKebabCase(str: string): string {
     return str.replaceAll(/([a-z0-9])([A-Z])/g, "$1-$2").toLowerCase();
   }
@@ -1432,14 +1441,12 @@ class WebpackCLI {
             return `${parentCmdNames}${command.usage()} | ${parentCmdNames}[command] [options]`;
           }
 
-          return `${parentCmdNames}${command.name()}|${command
-            .aliases()
-            .join("|")} ${command.usage()}`;
+          return `${parentCmdNames}${this.#commandTerm(command)} ${command.usage()}`;
         },
         // Support multiple aliases
         subcommandTerm: (command) => {
           const usage = command.usage();
-          return `${command.name()}|${command.aliases().join("|")}${usage.length > 0 ? ` ${usage}` : ""}`;
+          return `${this.#commandTerm(command)}${usage.length > 0 ? ` ${usage}` : ""}`;
         },
         visibleOptions: function visibleOptions(command) {
           return command.options.filter((option) => {
@@ -2445,6 +2452,16 @@ class WebpackCLI {
         );
       },
     },
+    complete: {
+      rawName: "complete",
+      name: "complete [shell]",
+      alias: [],
+      description: "Generate shell completion scripts.",
+      action: () => {
+        // Display-only stub for `--help`. Completion requests are handled in `run()`
+        // before parse so the completion adapter can inspect the loaded command tree.
+      },
+    },
   };
 
   #isCommand<A = void, O extends CommanderArgs = CommanderArgs, C extends Context = Context>(
@@ -2489,6 +2506,8 @@ class WebpackCLI {
       return await this.makeCommand(this.#commands.info);
     } else if (this.#isCommand(commandName, this.#commands.configtest)) {
       return await this.makeCommand(this.#commands.configtest);
+    } else if (this.#isCommand(commandName, this.#commands.complete)) {
+      return await this.makeCommand(this.#commands.complete);
     }
 
     const pkg: string = commandName;
@@ -2527,7 +2546,174 @@ class WebpackCLI {
     return externalCommand;
   }
 
-  async run(args: readonly string[], parseOptions: ParseOptions) {
+  #completionRequest(
+    args: readonly string[],
+    parseOptions?: ParseOptions,
+  ): { words: string[] } | undefined {
+    const userArgs = parseOptions?.from === "user" ? args : args.slice(2);
+
+    if (userArgs.find((arg) => arg !== "--" && !arg.startsWith("-")) !== "complete") {
+      return;
+    }
+
+    // `complete -- <words>` asks what to suggest for `<words>`; `complete <shell>`
+    // only prints a script and has no words to resolve.
+    const separator = userArgs.indexOf("--");
+
+    return { words: separator === -1 ? [] : userArgs.slice(separator + 1) };
+  }
+
+  async #prepareCompletions(words: string[]): Promise<void> {
+    // Register every option (same as `--help`) so tab can inspect the full tree.
+    this.program.forHelp = true;
+
+    await Promise.all(
+      Object.values(this.#commands)
+        .filter((command) => command.rawName !== "complete")
+        .map((command) => this.#loadCommandByName(command.rawName)),
+    );
+
+    let tab: typeof import("@bomb.sh/tab/commander").default;
+
+    try {
+      ({ default: tab } = await import("@bomb.sh/tab/commander"));
+    } catch (error) {
+      if ((error as NodeJS.ErrnoException).code !== "ERR_MODULE_NOT_FOUND") {
+        throw error;
+      }
+
+      // The shell runs `complete -- <words>` on every keypress, so a missing
+      // optional package stays silent there and only reports when asked for a script.
+      if (words.length === 0) {
+        this.logger.error(
+          `For using '${this.colors.green("complete")}' command you need to install: '${this.colors.green(COMPLETION_PACKAGE)}' package.`,
+        );
+        process.exit(2);
+      }
+
+      process.exit(0);
+    }
+
+    this.#attachCompletionHandlers(tab(this.program), words);
+  }
+
+  #attachCompletionHandlers(completion: RootCommand, words: string[]): void {
+    const helpOption = completion.options.get("help");
+
+    if (helpOption) {
+      helpOption.handler = (complete) => {
+        complete("verbose", "Show all available commands and options");
+      };
+    }
+
+    const outputHandler = (complete: (value: string, description: string) => void) => {
+      complete("json", "JSON output");
+      complete("markdown", "Markdown output");
+    };
+
+    for (const name of ["info", "version"]) {
+      const outputOption = completion.commands.get(name)?.options.get("output");
+
+      if (outputOption) {
+        outputOption.handler = outputHandler;
+      }
+    }
+
+    const progressHandler = (complete: (value: string, description: string) => void) => {
+      complete("profile", "Capture profiling data");
+    };
+
+    for (const name of ["build", "watch", "serve"]) {
+      const progressOption = completion.commands.get(name)?.options.get("progress");
+
+      if (progressOption) {
+        progressOption.handler = progressHandler;
+      }
+    }
+
+    const completeCommand = completion.commands.get("complete");
+    const shellArg = completeCommand?.arguments.get("shell");
+
+    if (shellArg) {
+      shellArg.handler = (complete) => {
+        complete("zsh", "Zsh");
+        complete("bash", "Bash");
+        complete("fish", "Fish");
+        complete("powershell", "PowerShell");
+      };
+    }
+
+    // The command already typed, e.g. `b` in `complete -- b --mode=`. The last word
+    // is still being written — `complete -- b` is completing `b` itself, which must
+    // stay a prefix of `build` so the shell expands it instead of matching an alias.
+    const requested = words.slice(0, -1).find((word) => word !== "--" && !word.startsWith("-"));
+
+    for (const command of this.program.commands) {
+      const tabCommand = completion.commands.get(command.name());
+
+      if (!tabCommand) {
+        continue;
+      }
+
+      // Commands are registered under their name, so an alias resolves to nothing.
+      // Only the requested one is registered, to keep aliases out of the suggestions.
+      if (requested && requested !== command.name() && command.aliases().includes(requested)) {
+        completion.commands.set(requested, tabCommand);
+      }
+
+      // Global options stay on the root command, yet they are accepted after a
+      // command too, so offer them there as well (e.g. `webpack build --col`).
+      for (const [name, option] of completion.options) {
+        if (!tabCommand.options.has(name)) {
+          tabCommand.options.set(name, option);
+        }
+      }
+
+      for (const option of command.options) {
+        const longName = option.long?.slice(2);
+
+        if (!longName) {
+          continue;
+        }
+
+        const { configs } = option as Option & { configs?: ArgumentConfig[] };
+
+        if (!configs) {
+          continue;
+        }
+
+        const values: string[] = [];
+
+        for (const config of configs) {
+          if (config.type !== "enum" || !config.values) {
+            continue;
+          }
+
+          for (const value of config.values) {
+            if (typeof value === "string") {
+              values.push(value);
+            }
+          }
+        }
+
+        if (values.length === 0) {
+          continue;
+        }
+
+        const tabOption = tabCommand.options.get(longName);
+
+        if (tabOption) {
+          tabOption.handler = (complete) => {
+            for (const value of values) {
+              complete(value, "");
+            }
+          };
+        }
+      }
+    }
+  }
+
+  async run(args: readonly string[], parseOptions?: ParseOptions) {
     // Default `--color` and `--no-color` options
 
     const self: WebpackCLI = this;
@@ -2735,6 +2921,12 @@ class WebpackCLI {
       await command.parseAsync([...commandOperands, ...unknown], { from: "user" });
     });
 
+    const completionRequest = this.#completionRequest(args, parseOptions);
+
+    if (completionRequest) {
+      await this.#prepareCompletions(completionRequest.words);
+    }
+
     await this.program.parseAsync(args, parseOptions);
   }
 
diff --git a/test/complete/complete.test.js b/test/complete/complete.test.js
new file mode 100644
index 00000000000..457982ee7ca
--- /dev/null
+++ b/test/complete/complete.test.js
@@ -0,0 +1,223 @@
+"use strict";
+
+const path = require("node:path");
+const { pathToFileURL } = require("node:url");
+const { run } = require("../utils/test-utils");
+
+// Hides `@bomb.sh/tab` from the CLI, the way a project that never installed the
+// optional package sees it.
+const withoutParser = {
+  nodeOptions: [
+    `--import=${pathToFileURL(path.resolve(__dirname, "no-completion-parser.mjs")).href}`,
+  ],
+};
+
+const parseCompletions = (stdout) =>
+  stdout
+    .split("\n")
+    .map((line) => line.trimEnd())
+    .filter((line) => line && !line.startsWith(":"))
+    .map((line) => line.split("\t")[0]);
+
+describe("complete", () => {
+  it("should generate a zsh completion script", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "zsh"]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+    expect(stdout).toContain("webpack");
+    expect(stdout).toContain("complete");
+  });
+
+  it("should generate a bash completion script", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "bash"]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+    expect(stdout).toContain("webpack");
+  });
+
+  it("should suggest commands", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", ""]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+
+    const suggestions = parseCompletions(stdout);
+
+    expect(suggestions).toEqual(expect.arrayContaining(["build", "watch", "serve", "info"]));
+  });
+
+  it("should suggest option values for --mode", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, [
+      "complete",
+      "--",
+      "build",
+      "--mode=",
+    ]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+
+    const suggestions = parseCompletions(stdout);
+
+    expect(suggestions).toEqual(expect.arrayContaining(["development", "production", "none"]));
+  });
+
+  it("should suggest option values for info --output", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, [
+      "complete",
+      "--",
+      "info",
+      "--output=",
+    ]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+
+    const suggestions = parseCompletions(stdout);
+
+    expect(suggestions).toEqual(expect.arrayContaining(["json", "markdown"]));
+  });
+
+  it("should expand a partial command to a single suggestion", async () => {
+    // `webpack b<TAB>` has to offer `build` alone, so the shell writes it out;
+    // suggesting the alias `b` next to it would leave the word as typed.
+    for (const [typed, command] of [
+      ["b", "build"],
+      ["w", "watch"],
+      ["s", "serve"],
+      ["i", "info"],
+    ]) {
+      const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", typed]);
+
+      expect(exitCode).toBe(0);
+      expect(stderr).toBeFalsy();
+      expect(parseCompletions(stdout)).toEqual([command]);
+    }
+  });
+
+  it("should suggest the same options for a command alias", async () => {
+    const { stdout: canonical } = await run(__dirname, ["complete", "--", "build", "--"]);
+
+    for (const alias of ["b", "bundle"]) {
+      const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", alias, "--"]);
+
+      expect(exitCode).toBe(0);
+      expect(stderr).toBeFalsy();
+      expect(parseCompletions(stdout)).toEqual(parseCompletions(canonical));
+    }
+  });
+
+  it("should suggest option values for a command alias", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", "b", "--mode="]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+    expect(parseCompletions(stdout)).toEqual(
+      expect.arrayContaining(["development", "production", "none"]),
+    );
+  });
+
+  it("should stay silent for a completion request without the parser", async () => {
+    const { exitCode, stderr, stdout } = await run(
+      __dirname,
+      ["complete", "--", "build", "--"],
+      withoutParser,
+    );
+
+    // A shell asks for this on every keypress, so it must print nothing at all.
+    expect(exitCode).toBe(0);
+    expect(stdout).toBeFalsy();
+    expect(stderr).toBeFalsy();
+  });
+
+  it("should ask to install the parser when generating a script", async () => {
+    const { exitCode, stderr } = await run(__dirname, ["complete", "zsh"], withoutParser);
+
+    expect(exitCode).toBe(2);
+    expect(stderr).toContain("@bomb.sh/tab");
+  });
+
+  it("should suggest option values for build --progress", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, [
+      "complete",
+      "--",
+      "build",
+      "--progress=",
+    ]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+    expect(parseCompletions(stdout)).toEqual(expect.arrayContaining(["profile"]));
+  });
+
+  it("should suggest option values for version --output", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, [
+      "complete",
+      "--",
+      "version",
+      "--output=",
+    ]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+    expect(parseCompletions(stdout)).toEqual(expect.arrayContaining(["json", "markdown"]));
+  });
+
+  it("should suggest option values for --help", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", "--help="]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+    expect(parseCompletions(stdout)).toEqual(expect.arrayContaining(["verbose"]));
+  });
+
+  it("should suggest shells for the complete command", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", "complete", ""]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+    expect(parseCompletions(stdout)).toEqual(
+      expect.arrayContaining(["zsh", "bash", "fish", "powershell"]),
+    );
+  });
+
+  it("should suggest global options after a command", async () => {
+    for (const command of ["build", "serve", "help"]) {
+      const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", command, "--"]);
+
+      expect(exitCode).toBe(0);
+      expect(stderr).toBeFalsy();
+      expect(parseCompletions(stdout)).toEqual(
+        expect.arrayContaining(["--color", "--no-color", "--help"]),
+      );
+    }
+  });
+
+  it("should not suggest aliases as commands", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", ""]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+
+    const suggestions = parseCompletions(stdout);
+
+    expect(suggestions).toEqual(expect.arrayContaining(["build", "watch", "serve"]));
+
+    for (const alias of ["b", "bundle", "w", "s", "server"]) {
+      expect(suggestions).not.toContain(alias);
+    }
+  });
+
+  it("should suggest flags for the build command", async () => {
+    const { exitCode, stderr, stdout } = await run(__dirname, ["complete", "--", "build", "--"]);
+
+    expect(exitCode).toBe(0);
+    expect(stderr).toBeFalsy();
+
+    const suggestions = parseCompletions(stdout);
+
+    expect(suggestions).toEqual(expect.arrayContaining(["--mode", "--config", "--entry"]));
+  });
+});
diff --git a/test/complete/no-completion-parser.mjs b/test/complete/no-completion-parser.mjs
new file mode 100644
index 00000000000..1bf55e94ff9
--- /dev/null
+++ b/test/complete/no-completion-parser.mjs
@@ -0,0 +1,18 @@
+// Makes `@bomb.sh/tab` unresolvable, so the CLI takes its missing-package path.
+import { register } from "node:module";
+
+register(
+  `data:text/javascript,${encodeURIComponent(`
+    export async function resolve(specifier, context, nextResolve) {
+      if (specifier.startsWith("@bomb.sh/tab")) {
+        const error = new Error("Cannot find package '" + specifier + "'");
+
+        error.code = "ERR_MODULE_NOT_FOUND";
+
+        throw error;
+      }
+
+      return nextResolve(specifier, context);
+    }
+  `)}`,
+);
diff --git a/test/help/__snapshots__/help.test.js.snap.devServer5.webpack5 b/test/help/__snapshots__/help.test.js.snap.devServer5.webpack5
index 46552514d82..e64cdf6d4b0 100644
--- a/test/help/__snapshots__/help.test.js.snap.devServer5.webpack5
+++ b/test/help/__snapshots__/help.test.js.snap.devServer5.webpack5
@@ -134,6 +134,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -193,6 +194,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -252,6 +254,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -2643,6 +2646,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -2732,6 +2736,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -3089,6 +3094,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -3146,6 +3152,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
diff --git a/test/help/__snapshots__/help.test.js.snap.devServer6.webpack5 b/test/help/__snapshots__/help.test.js.snap.devServer6.webpack5
index 5d230226777..72507ea3f5c 100644
--- a/test/help/__snapshots__/help.test.js.snap.devServer6.webpack5
+++ b/test/help/__snapshots__/help.test.js.snap.devServer6.webpack5
@@ -134,6 +134,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -193,6 +194,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -252,6 +254,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -2643,6 +2646,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -2732,6 +2736,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -3089,6 +3094,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.
@@ -3146,6 +3152,7 @@ Global options
 Commands
 ────────────────────────────────────────────────────────────────────────
   build|bundle|b [entries...] [options]  Run webpack (default command, can be omitted).
+  complete [shell]                       Generate shell completion scripts.
   configtest|t [config-path]             Validate a webpack configuration.
   help|h [command] [option]              Display help for commands and options.
   info|i [options]                       Outputs information about your system.