feat(engines): add privacycode as a supported engine

README.md

@@ -20,6 +20,7 @@ to upgrade, `… | sh -s -- remove` to uninstall.
 moshcode engines            # list installable engines
 moshcode engines --json     # machine-readable install status for automation
 moshcode install opencode   # install opencode (curl … | bash)
+moshcode install privacycode # curl -fsSL https://getprivacycode.com/install | sh
 moshcode install claude     # npm i -g @anthropic-ai/claude-code
 moshcode install codex      # npm i -g @openai/codex
 ```
@@ -34,6 +35,7 @@ use this only in an isolated container, VM, or workspace you trust:
 ```sh
 moshcode agents claude      # claude agents --dangerously-skip-permissions  (agent view)
 moshcode agents opencode    # opencode agent list                          (agent view)
+moshcode agents privacycode # privacycode agent list                       (agent view)
 moshcode agents codex       # codex --dangerously-bypass-approvals-and-sandbox  (autonomous)
 moshcode agents gemini      # gemini --approval-mode=yolo                       (autonomous)
 moshcode agents aider       # aider --yes-always                                (autonomous)

src/engines.mjs

@@ -23,6 +23,15 @@ export const ENGINES = {
     install: { cmd: "bash", args: ["-c", "curl -fsSL https://opencode.ai/install | bash"] },
     upgrade: { cmd: "opencode", args: ["upgrade"] },
   },
+  privacycode: {
+    desc: "privacycode — privacy-first coding agent (profullstack)",
+    bin: "privacycode",
+    // An opencode derivative, so it speaks the same flags/subcommands.
+    agentArgs: ["--auto"],
+    agentsView: ["agent", "list"],
+    install: { cmd: "sh", args: ["-c", "curl -fsSL https://getprivacycode.com/install | sh"] },
+    upgrade: { cmd: "privacycode", args: ["upgrade"] },
+  },
   claude: {
     desc: "Claude Code — Anthropic's agentic CLI",
     bin: "claude",
@@ -72,7 +81,10 @@ export function upgradeSpec(engine) {
 }
 
 /** Aliases so `/agents cc` etc. resolve. */
-const ALIASES = { cc: "claude", "claude-code": "claude", openai: "codex", gpt: "codex", google: "gemini" };
+const ALIASES = {
+  cc: "claude", "claude-code": "claude", openai: "codex", gpt: "codex", google: "gemini",
+  pc: "privacycode", getprivacycode: "privacycode", privacy: "privacycode",
+};
 
 /** Resolve a name/alias to `[key, engine]`, or null. */
 export function resolveEngine(token) {
@@ -143,6 +155,7 @@ const AI_EXEC = {
   codex: (p) => ["exec", p],                                 // codex non-interactive
   gemini: (p) => ["-p", p],                                  // gemini prompt mode
   opencode: (p) => ["run", p],                               // opencode one-shot
+  privacycode: (p) => ["run", p],                            // privacycode one-shot (opencode-derived)
   aider: (p) => ["--message", p, "--yes", "--no-auto-commits"], // aider single message
 };
 
@@ -155,7 +168,7 @@ export function aiExecArgs(engine, prompt) {
 
 /** First installed engine that supports headless ai(), honoring a preference. */
 export function pickAiEngine(preferred) {
-  const order = preferred ? [preferred] : ["claude", "codex", "opencode", "gemini", "aider"];
+  const order = preferred ? [preferred] : ["claude", "codex", "opencode", "privacycode", "gemini", "aider"];
   for (const key of order) {
     if (Object.hasOwn(ENGINES, key) && Object.hasOwn(AI_EXEC, key) && isInstalled(ENGINES[key].bin)) return key;
   }

src/mcp.mjs

@@ -4,7 +4,7 @@
 import { ENGINES, isInstalled, ranOk, runCmd } from "./engines.mjs";
 
 // Coding engines that can register MCP servers. Aider has no MCP support.
-export const MCP_ENGINES = ["claude", "gemini", "codex", "opencode"];
+export const MCP_ENGINES = ["claude", "gemini", "codex", "opencode", "privacycode"];
 
 /** Is this target a remote server URL (vs a local stdio command)? */
 export function isRemoteTarget(target) {
@@ -84,9 +84,12 @@ export function mcpAddArgs(key, spec) {
       else argv.push("--", target, ...args);
       return { argv };
     }
-    case "opencode": {
+    // privacycode is opencode-derived, so it shares opencode's `mcp add` surface
+    // — including the "remote servers only, non-interactively" limitation.
+    case "opencode":
+    case "privacycode": {
       if (!remote) {
-        return { skip: "OpenCode CLI adds only remote (--url) servers non-interactively" };
+        return { skip: `${key === "privacycode" ? "privacycode" : "OpenCode"} CLI adds only remote (--url) servers non-interactively` };
       }
       const argv = ["mcp", "add", name, "--url", target];
       for (const [k, v] of env) argv.push("--env", `${k}=${v}`);

test/engines.test.mjs

@@ -20,6 +20,7 @@ const BIN = fileURLToPath(new URL("../bin/moshcode.mjs", import.meta.url));
 // The autonomous-session bypass flags each engine declares (engine.agentArgs).
 const EXPECTED_AGENT_ARGS = {
   opencode: ["--auto"],
+  privacycode: ["--auto"],
   claude: ["--dangerously-skip-permissions"],
   codex: ["--dangerously-bypass-approvals-and-sandbox"],
   gemini: ["--approval-mode=yolo"],
@@ -30,6 +31,7 @@ const EXPECTED_AGENT_ARGS = {
 // agents-view invocation where it has one, else its autonomous bypass flags.
 const EXPECTED_LAUNCH_ARGS = {
   opencode: ["agent", "list"],
+  privacycode: ["agent", "list"],
   claude: ["agents", "--dangerously-skip-permissions"],
   codex: ["--dangerously-bypass-approvals-and-sandbox"],
   gemini: ["--approval-mode=yolo"],