feat(desktop): add standard Pi runtime preset

desktop/public/harness-logos/CREDITS.md

@@ -12,6 +12,7 @@ license permits redistribution.
 | `devin.svg` | [Cognition Devin documentation](https://docs.devin.ai/cli) | Retrieved 2026-07-27 | Cognition trademark; nominative use to identify the Devin harness | Official documentation `logo/favicon.svg` | Added the official black mark to a white square canvas so it remains legible in both app themes |
 | `hermes.png` | [NousResearch/hermes-agent](https://github.com/NousResearch/hermes-agent) | `6ad632b` | MIT © 2025 Nous Research | `website/static/img/logo.png` | Cropped the baked-in border frame, padded to square, resized to 64×64, quantised to a 16-colour palette |
 | `openclaw.svg` | [openclaw/openclaw](https://github.com/openclaw/openclaw) | `b06f40a` | MIT © 2026 OpenClaw Foundation | `ui/public/favicon.svg` | Removed the SMIL animation elements (renders the upstream rest pose statically — verified pixel-identical to the upstream frame at t=0); minified paths |
+| `pi.svg` | [earendil-works/pi](https://github.com/earendil-works/pi) | Retrieved 2026-08-21 | MIT © 2025 Mario Zechner | [`https://pi.dev/logo-auto.svg`](https://pi.dev/logo-auto.svg) | None |
 | `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 |

desktop/src-tauri/src/managed_agents/discovery/presets.rs

@@ -108,6 +108,15 @@ pub(super) const PRESET_HARNESSES: &[PresetHarness] = &[
         install_hint: "Buzz talks to Cursor through the cursor-agent CLI's ACP mode.",
         underlying_cli: None,
     },
+    PresetHarness {
+        id: "pi",
+        label: "Pi",
+        command: "pi-acp",
+        args: &[],
+        install_instructions_url: "https://github.com/svkozak/pi-acp",
+        install_hint: "Buzz talks to the standard Pi CLI through the pi-acp adapter. Follow the setup guide to install both pi and pi-acp so both commands are on your PATH.",
+        underlying_cli: Some("pi"),
+    },
     PresetHarness {
         id: "omp",
         label: "Oh My Pi",
@@ -347,6 +356,34 @@ mod tests {
         assert_eq!(entry.source, HarnessSource::Preset);
     }
 
+    #[test]
+    fn pi_preset_uses_standard_pi_acp_adapter() {
+        let preset = PRESET_HARNESSES
+            .iter()
+            .find(|preset| preset.id == "pi")
+            .expect("Pi preset should be present");
+
+        assert_eq!(preset.label, "Pi");
+        assert_eq!(preset.command, "pi-acp");
+        assert!(preset.args.is_empty());
+        assert_eq!(preset.underlying_cli, Some("pi"));
+        assert_eq!(
+            preset.install_instructions_url,
+            "https://github.com/svkozak/pi-acp"
+        );
+
+        let entry = preset_catalog_entry(preset, |command| {
+            (command == "pi").then(|| PathBuf::from("/usr/local/bin/pi"))
+        });
+        assert_eq!(entry.availability, AcpAvailabilityStatus::AdapterMissing);
+        assert!(entry.command.is_none());
+        assert_eq!(
+            entry.underlying_cli_path.as_deref(),
+            Some("/usr/local/bin/pi")
+        );
+        assert!(entry.install_hint.contains("standard Pi CLI"));
+    }
+
     #[test]
     fn adapter_missing_when_underlying_cli_present() {
         let entry = preset_catalog_entry(&ADAPTER_PRESET, |command| {

desktop/src/features/onboarding/ui/RuntimeIcon.tsx

@@ -18,6 +18,7 @@ const RUNTIME_LOGOS: Record<string, string> = {
 // Keys match the preset `id` values emitted by the backend PRESET_HARNESSES.
 export const PRESET_LOGOS: Record<string, string> = {
   devin: "/harness-logos/devin.svg",
+  pi: "/harness-logos/pi.svg",
   omp: "/harness-logos/omp.svg",
   grok: "/harness-logos/grok.svg",
   opencode: "/harness-logos/opencode.svg",

desktop/src/features/settings/ui/harnessCatalogCopy.ts

@@ -25,6 +25,9 @@ const HARNESS_DESCRIPTIONS: Record<string, string> = {
   // Bundled presets — sources per RESEARCH/BYOH_CATALOG_IA.md.
   // Source: https://cursor.com/docs/cli/acp
   cursor: "Cursor's coding agent, connected to Buzz through its ACP server.",
+  // Sources: https://github.com/earendil-works/pi,
+  // https://github.com/svkozak/pi-acp
+  pi: "A minimal terminal coding harness, connected through the pi-acp adapter.",
   // Source: https://github.com/can1357/oh-my-pi
   omp: "A terminal coding agent with integrated development tools.",
   // Source: https://build.x.ai (docs unavailable during research; kept

desktop/tests/e2e/harness-catalog-screenshots.spec.ts

@@ -79,6 +79,24 @@ const CATALOG = [
     auth_status: { status: "not_applicable" },
     source: "preset",
   },
+  {
+    id: "pi",
+    label: "Pi",
+    avatar_url: "",
+    availability: "adapter_missing",
+    command: null,
+    binary_path: null,
+    default_args: [],
+    mcp_command: null,
+    install_hint:
+      "Buzz talks to the standard Pi CLI through the pi-acp adapter. Follow the setup guide to install both pi and pi-acp so both commands are on your PATH.",
+    install_instructions_url: "https://github.com/svkozak/pi-acp",
+    can_auto_install: false,
+    underlying_cli_path: "/usr/local/bin/pi",
+    node_required: false,
+    auth_status: { status: "not_applicable" },
+    source: "preset",
+  },
   {
     id: "omp",
     label: "Oh My Pi",
@@ -160,7 +178,14 @@ test("after: consolidated harnesses panel + catalog dialog", async ({
     path: `${SHOTS}/after-catalog-needs-setup.png`,
   });
 
-  // 3. Ready entry detail (Ready state, no install action). Ready entries
+  // 3. Standard Pi uses its own preset and reports the missing ACP adapter.
+  await page.getByTestId("harness-catalog-list-item-pi").click();
+  await page.waitForTimeout(300);
+  await page.getByTestId("harness-catalog-dialog").screenshot({
+    path: `${SHOTS}/after-catalog-pi.png`,
+  });
+
+  // 4. Ready entry detail (Ready state, no install action). Ready entries
   // sit in the "Installed" accordion, collapsed by default — expand it.
   await page.getByTestId("harness-catalog-section-installed").click();
   await page.getByTestId("harness-catalog-list-item-claude").click();
@@ -169,7 +194,7 @@ test("after: consolidated harnesses panel + catalog dialog", async ({
     path: `${SHOTS}/after-catalog-ready-detail.png`,
   });
 
-  // 4. Custom harness form — all fields inline.
+  // 5. Custom harness form — all fields inline.
   await page.getByTestId("harness-catalog-list-item-custom").click();
   await expect(page.getByTestId("custom-harness-form")).toBeVisible();
   await page.waitForTimeout(300);