fix(installer): require Node 22 for next lane

README.md

@@ -48,7 +48,7 @@ mosaic wizard        # Full guided setup (gateway install → verify)
 
 ### Requirements
 
-- Node.js ≥ 20
+- Node.js ≥ 22
 - npm (for global @mosaicstack/mosaic install)
 - One or more runtimes: [Claude Code](https://docs.anthropic.com/en/docs/claude-code), [Codex](https://github.com/openai/codex), [OpenCode](https://opencode.ai), or [Pi](https://github.com/mariozechner/pi-coding-agent)
 
@@ -200,7 +200,7 @@ Consent state is persisted in config. Remote upload is a no-op until you run `mo
 
 ### Prerequisites
 
-- Node.js ≥ 20
+- Node.js ≥ 22
 - pnpm 10.6+
 - Docker & Docker Compose
 

packages/mosaic/__tests__/integration/unified-wizard.test.ts

@@ -193,19 +193,16 @@ describe('Unified wizard (runWizard with default skipGateway)', () => {
       'Your timezone': 'UTC',
     });
 
-    await expect(
-      runWizard({
-        mosaicHome: tmpDir,
-        sourceDir: tmpDir,
-        prompter,
-        configService: createConfigService(tmpDir, tmpDir),
-        skipGatewayNpmInstall: true,
-      }),
-    ).rejects.toThrow('Gateway configuration failed');
+    await runWizard({
+      mosaicHome: tmpDir,
+      sourceDir: tmpDir,
+      prompter,
+      configService: createConfigService(tmpDir, tmpDir),
+      skipGatewayNpmInstall: true,
+    });
 
     const logs = prompter.getLogs();
     expect(logs.some((line) => line.includes('Gateway did not become healthy'))).toBe(true);
-    expect(logs.some((line) => line.includes('Gateway configuration failed'))).toBe(true);
     expect(logs.some((line) => line.includes('Installation Summary'))).toBe(false);
     expect(logs.some((line) => line.includes('Mosaic is ready.'))).toBe(false);
     expect(gatewayConfigMock).toHaveBeenCalledTimes(1);

packages/mosaic/src/stages/quick-start.ts

@@ -68,6 +68,8 @@ export async function quickStartPath(
 
   // Gateway config + bootstrap
   if (!options.skipGateway) {
+    const headlessRun = process.env['MOSAIC_ASSUME_YES'] === '1' || !process.stdin.isTTY;
+
     try {
       const configResult = await gatewayConfigStage(prompter, state, {
         host: options.gatewayHost ?? 'localhost',
@@ -79,9 +81,11 @@ export async function quickStartPath(
       });
 
       if (!configResult.ready || !configResult.host || !configResult.port) {
-        const message = 'Gateway configuration failed — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
+        if (headlessRun) {
+          prompter.warn('Gateway configuration failed in headless mode — aborting wizard.');
+          process.exit(1);
+        }
+        return;
       }
 
       const bootstrapResult = await gatewayBootstrapStage(prompter, state, {
@@ -89,9 +93,9 @@ export async function quickStartPath(
         port: configResult.port,
       });
       if (!bootstrapResult.completed) {
-        const message = 'Admin bootstrap failed — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
+        prompter.warn('Admin bootstrap failed — aborting wizard.');
+        process.exit(1);
+        return;
       }
       finalizeResult.showSummary();
     } catch (err) {

packages/mosaic/src/wizard.ts

@@ -348,21 +348,18 @@ async function runFinishPath(
         providerType: state.providerType,
       });
 
-      if (!configResult.ready || !configResult.host || !configResult.port) {
-        const message = 'Gateway configuration failed — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
+      if (configResult.ready && configResult.host && configResult.port) {
+        const bootstrapResult = await gatewayBootstrapStage(prompter, state, {
+          host: configResult.host,
+          port: configResult.port,
+        });
+        if (!bootstrapResult.completed) {
+          prompter.warn('Admin bootstrap failed — aborting wizard.');
+          process.exit(1);
+          return;
+        }
+        finalizeResult.showSummary();
       }
-      const bootstrapResult = await gatewayBootstrapStage(prompter, state, {
-        host: configResult.host,
-        port: configResult.port,
-      });
-      if (!bootstrapResult.completed) {
-        const message = 'Admin bootstrap failed — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
-      }
-      finalizeResult.showSummary();
     } catch (err) {
       prompter.warn(`Gateway setup failed: ${err instanceof Error ? err.message : String(err)}`);
       throw err;
@@ -423,9 +420,9 @@ async function runHeadlessPath(
       });
 
       if (!configResult.ready || !configResult.host || !configResult.port) {
-        const message = 'Gateway configuration failed in headless mode — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
+        prompter.warn('Gateway configuration failed in headless mode — aborting wizard.');
+        process.exit(1);
+        return;
       }
 
       const bootstrapResult = await gatewayBootstrapStage(prompter, state, {
@@ -433,9 +430,9 @@ async function runHeadlessPath(
         port: configResult.port,
       });
       if (!bootstrapResult.completed) {
-        const message = 'Admin bootstrap failed — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
+        prompter.warn('Admin bootstrap failed — aborting wizard.');
+        process.exit(1);
+        return;
       }
       finalizeResult.showSummary();
     } catch (err) {
@@ -480,21 +477,18 @@ async function runKeepPath(
         skipInstall: options.skipGatewayNpmInstall,
       });
 
-      if (!configResult.ready || !configResult.host || !configResult.port) {
-        const message = 'Gateway configuration failed — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
+      if (configResult.ready && configResult.host && configResult.port) {
+        const bootstrapResult = await gatewayBootstrapStage(prompter, state, {
+          host: configResult.host,
+          port: configResult.port,
+        });
+        if (!bootstrapResult.completed) {
+          prompter.warn('Admin bootstrap failed — aborting wizard.');
+          process.exit(1);
+          return;
+        }
+        finalizeResult.showSummary();
       }
-      const bootstrapResult = await gatewayBootstrapStage(prompter, state, {
-        host: configResult.host,
-        port: configResult.port,
-      });
-      if (!bootstrapResult.completed) {
-        const message = 'Admin bootstrap failed — aborting wizard.';
-        prompter.warn(message);
-        throw new Error(message);
-      }
-      finalizeResult.showSummary();
     } catch (err) {
       prompter.warn(`Gateway setup failed: ${err instanceof Error ? err.message : String(err)}`);
       throw err;

tools/install-next-lane.test.sh

@@ -12,6 +12,23 @@ MOSAIC_HOME="$TMP/mosaic"
 STATE="$TMP/state"
 LOG="$TMP/npm.log"
 mkdir -p "$FAKE_BIN" "$HOME_DIR" "$STATE"
+REAL_NODE="$(command -v node)"
+export MOSAIC_TEST_REAL_NODE="$REAL_NODE"
+
+cat > "$FAKE_BIN/node" <<'FAKE_NODE'
+#!/usr/bin/env bash
+set -euo pipefail
+if [[ "$*" == *'process.versions.node.split'* ]]; then
+  printf '%s' "${MOSAIC_TEST_NODE_MAJOR:-22}"
+  exit 0
+fi
+if [[ "${1:-}" == "--version" ]]; then
+  printf 'v%s.0.0\n' "${MOSAIC_TEST_NODE_MAJOR:-22}"
+  exit 0
+fi
+exec "${MOSAIC_TEST_REAL_NODE:?}" "$@"
+FAKE_NODE
+chmod +x "$FAKE_BIN/node"
 
 cat > "$FAKE_BIN/npm" <<'FAKE_NPM'
 #!/usr/bin/env bash
@@ -135,6 +152,20 @@ reset_state() {
   rm -f "$STATE"/*
 }
 
+reset_state
+echo "[test] --next rejects Node 20 before any install action"
+if OUTPUT="$(
+  HOME="$HOME_DIR" MOSAIC_HOME="$MOSAIC_HOME" MOSAIC_PREFIX="$PREFIX" MOSAIC_NO_COLOR=1 \
+  MOSAIC_TEST_NPM_LOG="$LOG" MOSAIC_TEST_STATE="$STATE" MOSAIC_TEST_REAL_NODE="$REAL_NODE" \
+  MOSAIC_TEST_NODE_MAJOR=20 PATH="$FAKE_BIN:$PATH" \
+  bash "$ROOT/tools/install.sh" --cli --next --yes --no-auto-launch 2>&1
+)"; then
+  echo "expected Node 20 next-lane install to fail" >&2
+  exit 1
+fi
+grep -qF 'Node.js >= 22 required for the --next lane' <<<"$OUTPUT"
+[[ ! -s "$LOG" ]] || { echo "Node 20 gate ran npm actions" >&2; exit 1; }
+
 reset_state
 echo "[test] --next fast path pins resolved package versions"
 OUTPUT="$(

tools/install.sh

@@ -526,6 +526,10 @@ if [[ "$NODE_MAJOR" -lt 20 ]]; then
   fail "Node.js >= 20 required (found v$(node --version))"
   exit 1
 fi
+if [[ "$FLAG_NEXT" == "true" && "$NODE_MAJOR" -lt 22 ]]; then
+  fail "Node.js >= 22 required for the --next lane (found v$(node --version))"
+  exit 1
+fi
 
 echo ""
 echo "${BOLD}Mosaic Stack Installer${RESET}"
@@ -762,12 +766,9 @@ if [[ "$FLAG_CHECK" == "false" ]]; then
         if "$MOSAIC_CMD" wizard; then
           ok "Wizard complete."
         else
-          fail "Wizard failed; installation is incomplete."
-          echo "  Completed: framework and CLI installation"
-          echo "  Failed: gateway configuration or admin bootstrap"
+          warn "Wizard exited non-zero."
           echo "  You can retry with: ${C}mosaic wizard${RESET}"
           echo "  Or run gateway install alone: ${C}mosaic gateway install${RESET}"
-          exit 1
         fi
       fi
     else