diff --git a/desktop/public/harness-logos/CREDITS.md b/desktop/public/harness-logos/CREDITS.md
index 716c43e1ae..34f2175497 100644
--- a/desktop/public/harness-logos/CREDITS.md
+++ b/desktop/public/harness-logos/CREDITS.md
@@ -15,6 +15,7 @@ license permits redistribution.
 | `omp.svg` | [can1357/oh-my-pi](https://github.com/can1357/oh-my-pi) | `667111575ebba136dadfd6989379e7f67e0d40d9` | MIT © 2025 Mario Zechner; © 2025–2026 Can Bölük | `assets/icon.svg` | None |
 | `kimi.png` | [MoonshotAI/kimi-cli](https://github.com/MoonshotAI/kimi-cli) | `4a550effdfcb29a25a5d325bf935296cc50cd417` | Apache-2.0; NOTICE: Kimi Code CLI © 2025 Moonshot AI | `web/public/logo.png` | None |
 | `grok.svg` | [SpaceXAI brand guidelines](https://x.ai/legal/brand-guidelines) | Retrieved 2026-07-25 | xAI Brand Guidelines: marks may be used to accurately refer to xAI or its services; logos must be used exactly as provided | `SpaceXAI_Grok_Assets.zip` → `Grok_Logomark_Dark.svg` | None |
+| `zcode-acp.svg` | Original placeholder (not derived from a third-party mark) | n/a | CC0-1.0 / public domain (attribution-free) | n/a — authored for this PR | Original monospace "ZC" wordmark on a rounded square so the entry is identifiable until an official Z.ai mark can be bundled under redistribution terms |
 
 ## Inline SVG marks (`RUNTIME_MARKS`)
 
diff --git a/desktop/public/harness-logos/zcode-acp.svg b/desktop/public/harness-logos/zcode-acp.svg
new file mode 100644
index 0000000000..ca85372595
--- /dev/null
+++ b/desktop/public/harness-logos/zcode-acp.svg
@@ -0,0 +1,9 @@
+<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 120 120" width="120" height="120">
+  <!-- Original, attribution-free placeholder mark for the zcode-acp preset.
+       Rendered as a monospace "ZC" wordmark on a rounded square so it is
+       legible against any app theme. Replace with an official mark if/when
+       Z.ai grants redistribution. -->
+  <rect x="6" y="6" width="108" height="108" rx="22" fill="#111827" />
+  <text x="60" y="78" font-family="ui-monospace, SFMono-Regular, Menlo, monospace"
+        font-size="52" font-weight="700" text-anchor="middle" fill="#f9fafb">ZC</text>
+</svg>
diff --git a/desktop/src-tauri/src/managed_agents/discovery/presets.rs b/desktop/src-tauri/src/managed_agents/discovery/presets.rs
index b2d8a14ef0..a01191dbde 100644
--- a/desktop/src-tauri/src/managed_agents/discovery/presets.rs
+++ b/desktop/src-tauri/src/managed_agents/discovery/presets.rs
@@ -174,6 +174,19 @@ pub(super) const PRESET_HARNESSES: &[PresetHarness] = &[
             Gateway's own environment separately.",
         underlying_cli: None,
     },
+    PresetHarness {
+        id: "zcode-acp",
+        label: "ZCode",
+        command: "zcode-acp",
+        args: &[],
+        install_instructions_url: "https://github.com/jpalmae/zcode-acp",
+        install_hint: "Buzz talks to ZCode through the zcode-acp ACP adapter, \
+            which drives the ZCode CLI (`zcode.cjs`) over its stdio app-server. \
+            Follow the setup guide to install the adapter so the zcode-acp \
+            command is on your PATH, and run `zcode login` once to configure \
+            a model provider.",
+        underlying_cli: Some("zcode"),
+    },
 ];
 
 /// Return preset definitions for the spawn/readiness registry.
diff --git a/desktop/src/features/onboarding/ui/RuntimeIcon.tsx b/desktop/src/features/onboarding/ui/RuntimeIcon.tsx
index 5b247c31f7..6f25ad401a 100644
--- a/desktop/src/features/onboarding/ui/RuntimeIcon.tsx
+++ b/desktop/src/features/onboarding/ui/RuntimeIcon.tsx
@@ -25,6 +25,7 @@ export const PRESET_LOGOS: Record<string, string> = {
   amp: "/harness-logos/amp.png",
   hermes: "/harness-logos/hermes.png",
   openclaw: "/harness-logos/openclaw.svg",
+  "zcode-acp": "/harness-logos/zcode-acp.svg",
 };
 
 function isBuzzRuntime(runtime: AcpRuntimeCatalogEntry): boolean {