Plugins: add Claude marketplace registry installs (#48058)

* Changelog: note Claude marketplace plugin support

* Plugins: add Claude marketplace installs

* E2E: cover marketplace plugin installs in Docker

src/cli/plugins-cli.ts

@@ -11,6 +11,11 @@ import { enablePluginInConfig } from "../plugins/enable.js";
 import { installPluginFromNpmSpec, installPluginFromPath } from "../plugins/install.js";
 import { recordPluginInstall } from "../plugins/installs.js";
 import { clearPluginManifestRegistryCache } from "../plugins/manifest-registry.js";
+import {
+  installPluginFromMarketplace,
+  listMarketplacePlugins,
+  resolveMarketplaceInstallShortcut,
+} from "../plugins/marketplace.js";
 import type { PluginRecord } from "../plugins/registry.js";
 import { applyExclusiveSlotSelection } from "../plugins/slots.js";
 import { resolvePluginSourceRoots, formatPluginSourceForTable } from "../plugins/source-display.js";
@@ -46,6 +51,10 @@ export type PluginUpdateOptions = {
   dryRun?: boolean;
 };
 
+export type PluginMarketplaceListOptions = {
+  json?: boolean;
+};
+
 export type PluginUninstallOptions = {
   keepFiles?: boolean;
   keepConfig?: boolean;
@@ -203,9 +212,65 @@ async function installBundledPluginSource(params: {
 
 async function runPluginInstallCommand(params: {
   raw: string;
-  opts: { link?: boolean; pin?: boolean };
+  opts: { link?: boolean; pin?: boolean; marketplace?: string };
 }) {
-  const { raw, opts } = params;
+  const shorthand = !params.opts.marketplace
+    ? await resolveMarketplaceInstallShortcut(params.raw)
+    : null;
+  if (shorthand?.ok === false) {
+    defaultRuntime.error(shorthand.error);
+    process.exit(1);
+  }
+
+  const raw = shorthand?.ok ? shorthand.plugin : params.raw;
+  const opts = {
+    ...params.opts,
+    marketplace:
+      params.opts.marketplace ?? (shorthand?.ok ? shorthand.marketplaceSource : undefined),
+  };
+
+  if (opts.marketplace) {
+    if (opts.link) {
+      defaultRuntime.error("`--link` is not supported with `--marketplace`.");
+      process.exit(1);
+    }
+    if (opts.pin) {
+      defaultRuntime.error("`--pin` is not supported with `--marketplace`.");
+      process.exit(1);
+    }
+
+    const cfg = loadConfig();
+    const result = await installPluginFromMarketplace({
+      marketplace: opts.marketplace,
+      plugin: raw,
+      logger: createPluginInstallLogger(),
+    });
+    if (!result.ok) {
+      defaultRuntime.error(result.error);
+      process.exit(1);
+    }
+
+    clearPluginManifestRegistryCache();
+
+    let next = enablePluginInConfig(cfg, result.pluginId).config;
+    next = recordPluginInstall(next, {
+      pluginId: result.pluginId,
+      source: "marketplace",
+      installPath: result.targetDir,
+      version: result.version,
+      marketplaceName: result.marketplaceName,
+      marketplaceSource: result.marketplaceSource,
+      marketplacePlugin: result.marketplacePlugin,
+    });
+    const slotResult = applySlotSelectionForPlugin(next, result.pluginId);
+    next = slotResult.config;
+    await writeConfigFile(next);
+    logSlotWarnings(slotResult.warnings);
+    defaultRuntime.log(`Installed plugin: ${result.pluginId}`);
+    defaultRuntime.log(`Restart the gateway to load plugins.`);
+    return;
+  }
+
   const fileSpec = resolveFileNpmSpecToLocalPath(raw);
   if (fileSpec && !fileSpec.ok) {
     defaultRuntime.error(fileSpec.error);
@@ -734,17 +799,24 @@ export function registerPluginsCli(program: Command) {
 
   plugins
     .command("install")
-    .description("Install a plugin (path, archive, or npm spec)")
-    .argument("<path-or-spec>", "Path (.ts/.js/.zip/.tgz/.tar.gz) or an npm package spec")
+    .description("Install a plugin (path, archive, npm spec, or marketplace entry)")
+    .argument(
+      "<path-or-spec-or-plugin>",
+      "Path (.ts/.js/.zip/.tgz/.tar.gz), npm package spec, or marketplace plugin name",
+    )
     .option("-l, --link", "Link a local path instead of copying", false)
     .option("--pin", "Record npm installs as exact resolved <name>@<version>", false)
-    .action(async (raw: string, opts: { link?: boolean; pin?: boolean }) => {
+    .option(
+      "--marketplace <source>",
+      "Install a Claude marketplace plugin from a local repo/path or git/GitHub source",
+    )
+    .action(async (raw: string, opts: { link?: boolean; pin?: boolean; marketplace?: string }) => {
       await runPluginInstallCommand({ raw, opts });
     });
 
   plugins
     .command("update")
-    .description("Update installed plugins (npm installs only)")
+    .description("Update installed plugins (npm and marketplace installs)")
     .argument("[id]", "Plugin id (omit with --all)")
     .option("--all", "Update all tracked plugins", false)
     .option("--dry-run", "Show what would change without writing", false)
@@ -755,7 +827,7 @@ export function registerPluginsCli(program: Command) {
 
       if (targets.length === 0) {
         if (opts.all) {
-          defaultRuntime.log("No npm-installed plugins to update.");
+          defaultRuntime.log("No tracked plugins to update.");
           return;
         }
         defaultRuntime.error("Provide a plugin id or use --all.");
@@ -839,4 +911,54 @@ export function registerPluginsCli(program: Command) {
       lines.push(`${theme.muted("Docs:")} ${docs}`);
       defaultRuntime.log(lines.join("\n"));
     });
+
+  const marketplace = plugins
+    .command("marketplace")
+    .description("Inspect Claude-compatible plugin marketplaces");
+
+  marketplace
+    .command("list")
+    .description("List plugins published by a marketplace source")
+    .argument("<source>", "Local marketplace path/repo or git/GitHub source")
+    .option("--json", "Print JSON")
+    .action(async (source: string, opts: PluginMarketplaceListOptions) => {
+      const result = await listMarketplacePlugins({
+        marketplace: source,
+        logger: createPluginInstallLogger(),
+      });
+      if (!result.ok) {
+        defaultRuntime.error(result.error);
+        process.exit(1);
+      }
+
+      if (opts.json) {
+        defaultRuntime.log(
+          JSON.stringify(
+            {
+              source: result.sourceLabel,
+              name: result.manifest.name,
+              version: result.manifest.version,
+              plugins: result.manifest.plugins,
+            },
+            null,
+            2,
+          ),
+        );
+        return;
+      }
+
+      if (result.manifest.plugins.length === 0) {
+        defaultRuntime.log(`No plugins found in marketplace ${result.sourceLabel}.`);
+        return;
+      }
+
+      defaultRuntime.log(
+        `${theme.heading("Marketplace")} ${theme.muted(result.manifest.name ?? result.sourceLabel)}`,
+      );
+      for (const plugin of result.manifest.plugins) {
+        const suffix = plugin.version ? theme.muted(` v${plugin.version}`) : "";
+        const desc = plugin.description ? ` - ${theme.muted(plugin.description)}` : "";
+        defaultRuntime.log(`${theme.command(plugin.name)}${suffix}${desc}`);
+      }
+    });
 }