Prefer Carbon flush interval env

.github/workflows/ci.yml

@@ -21,6 +21,7 @@ jobs:
         uses: actions/setup-node@v4
         with:
           node-version: "22"
+          registry-url: https://registry.npmjs.org
           cache: npm
 
       - name: Install dependencies

package.json

@@ -1,6 +1,6 @@
 {
   "name": "@carboncode/cli",
-  "version": "0.1.2",
+  "version": "0.1.5",
   "description": "Chinese-first DeepSeek-powered terminal coding agent for personal developer workflows.",
   "type": "module",
   "bin": {

src/cli/ui/App.tsx

@@ -129,6 +129,7 @@ import { useViewerBroadcast } from "./dashboard/use-picker-broadcast.js";
 import { formatEditResults } from "./edit-history.js";
 import { buildEditToolBlocks } from "./edit-tool-gate.js";
 import { loopEventToDashboard } from "./effects/loop-to-dashboard.js";
+import { resolveFlushIntervalMs } from "./flush-interval.js";
 import { appendGlobalMemory, appendProjectMemory, detectHashMemory } from "./hash-memory.js";
 import { applySlashResult } from "./hooks/apply-slash-result.js";
 import { handleAssistantFinal } from "./hooks/handle-assistant-final.js";
@@ -294,15 +295,9 @@ export interface AppProps {
  * Throttle interval in ms. 50ms —20Hz —slow enough that cursor-up
  * repaints on winpty/MINTTY/ConEmu/tmux don't leave half-drawn frames,
  * fast enough that streaming text still reads as continuous. Override
- * via `REASONIX_FLUSH_MS` if you want 60Hz on a terminal you trust.
+ * via `CARBONCODE_FLUSH_MS` if you want 60Hz on a terminal you trust.
  */
-const FLUSH_INTERVAL_MS = (() => {
-  const raw = process.env.REASONIX_FLUSH_MS;
-  if (!raw) return 50;
-  const parsed = Number(raw);
-  if (!Number.isFinite(parsed) || parsed < 16 || parsed > 1000) return 50;
-  return Math.round(parsed);
-})();
+const FLUSH_INTERVAL_MS = resolveFlushIntervalMs();
 
 /**
  * Captures printable keys / backspace / Enter while history is unpinned so the

src/cli/ui/flush-interval.ts

@@ -0,0 +1,7 @@
+export function resolveFlushIntervalMs(env: NodeJS.ProcessEnv = process.env): number {
+  const raw = env.CARBONCODE_FLUSH_MS ?? env.REASONIX_FLUSH_MS;
+  if (!raw) return 50;
+  const parsed = Number(raw);
+  if (!Number.isFinite(parsed) || parsed < 16 || parsed > 1000) return 50;
+  return Math.round(parsed);
+}

src/server/api/health.ts

@@ -1,9 +1,7 @@
 import { existsSync, readdirSync, statSync } from "node:fs";
-import { homedir } from "node:os";
 import { join } from "node:path";
-import { listSessions } from "../../memory/session.js";
 import { VERSION } from "../../version.js";
-import type { DashboardContext } from "../context.js";
+import { type DashboardContext, resolveCarboncodeHome } from "../context.js";
 import type { ApiResult } from "../router.js";
 
 interface DirStat {
@@ -56,6 +54,17 @@ function dirSize(path: string): DirStat {
   return { path, exists: true, fileCount, totalBytes };
 }
 
+function countSessionFiles(path: string): number {
+  if (!existsSync(path)) return 0;
+  try {
+    return readdirSync(path).filter(
+      (file) => file.endsWith(".jsonl") && !file.endsWith(".events.jsonl"),
+    ).length;
+  } catch {
+    return 0;
+  }
+}
+
 export async function handleHealth(
   method: string,
   _rest: string[],
@@ -65,8 +74,7 @@ export async function handleHealth(
   if (method !== "GET") {
     return { status: 405, body: { error: "GET only" } };
   }
-  const home = homedir();
-  const carboncodeHome = join(home, ".carboncode");
+  const carboncodeHome = resolveCarboncodeHome(ctx.configPath);
 
   const sessionsStat = dirSize(join(carboncodeHome, "sessions"));
   const memoryStat = dirSize(join(carboncodeHome, "memory"));
@@ -81,8 +89,6 @@ export async function handleHealth(
     }
   }
 
-  const sessions = listSessions();
-
   return {
     status: 200,
     body: {
@@ -91,7 +97,7 @@ export async function handleHealth(
       carboncodeHome,
       sessions: {
         path: sessionsStat.path,
-        count: sessions.length,
+        count: countSessionFiles(sessionsStat.path),
         totalBytes: sessionsStat.totalBytes,
       },
       memory: {

src/server/api/memory.ts

@@ -10,26 +10,25 @@ import {
   unlinkSync,
   writeFileSync,
 } from "node:fs";
-import { homedir } from "node:os";
 import { basename, dirname, join, resolve as resolvePath } from "node:path";
 import {
   PROJECT_MEMORY_FILE,
   findProjectMemoryPath,
   resolveProjectMemoryWritePath,
 } from "../../memory/project.js";
-import type { DashboardContext } from "../context.js";
+import { type DashboardContext, resolveCarboncodeHome } from "../context.js";
 import type { ApiResult } from "../router.js";
 
 function projectHash(rootDir: string): string {
   return createHash("sha1").update(resolvePath(rootDir)).digest("hex").slice(0, 16);
 }
 
-function globalMemoryDir(): string {
-  return join(homedir(), ".carboncode", "memory", "global");
+function globalMemoryDir(carboncodeHome: string): string {
+  return join(carboncodeHome, "memory", "global");
 }
 
-function projectMemoryDir(rootDir: string): string {
-  return join(homedir(), ".carboncode", "memory", projectHash(rootDir));
+function projectMemoryDir(carboncodeHome: string, rootDir: string): string {
+  return join(carboncodeHome, "memory", projectHash(rootDir));
 }
 
 interface WriteBody {
@@ -74,8 +73,9 @@ export async function handleMemory(
   ctx: DashboardContext,
 ): Promise<ApiResult> {
   const cwd = ctx.getCurrentCwd?.();
-  const globalDir = globalMemoryDir();
-  const projectMemDir = cwd ? projectMemoryDir(cwd) : "";
+  const carboncodeHome = resolveCarboncodeHome(ctx.configPath);
+  const globalDir = globalMemoryDir(carboncodeHome);
+  const projectMemDir = cwd ? projectMemoryDir(carboncodeHome, cwd) : "";
 
   if (method === "GET" && rest.length === 0) {
     const existingProjectMemory = cwd ? findProjectMemoryPath(cwd) : null;

src/server/context.ts

@@ -1,11 +1,20 @@
 /** Callbacks (not refs) so endpoints read live loop state per request, not a frozen closure. */
 
+import { homedir } from "node:os";
+import { basename, dirname, join } from "node:path";
 import type { McpServerSummary } from "../cli/ui/slash/types.js";
 import type { EditMode } from "../config.js";
 import type { CacheFirstLoop } from "../loop.js";
 import type { ToolRegistry } from "../tools.js";
 import type { JobRegistry } from "../tools/jobs.js";
 
+export function resolveCarboncodeHome(configPath: string): string {
+  if (!configPath.trim()) return join(homedir(), ".carboncode");
+  const configDir = dirname(configPath);
+  if (basename(configDir).toLowerCase() === ".carboncode") return configDir;
+  return join(configDir, ".carboncode");
+}
+
 export interface DashboardContext {
   /** Caller resolves via `defaultConfigPath()`; module deliberately avoids `homedir()` so tests can redirect. */
   configPath: string;

tests/cli-bare-routing.test.ts

@@ -6,6 +6,7 @@ import { join } from "node:path";
 import { afterEach, beforeEach, describe, expect, it, vi } from "vitest";
 import { writeConfig } from "../src/config.js";
 
+const HEAP_REEXEC_ENV = "REASONIX_HEAP_REEXEC";
 const codeCommand = vi.fn(async () => {});
 const chatCommand = vi.fn(async () => {});
 const setupCommand = vi.fn(async () => {});
@@ -25,6 +26,7 @@ describe("bare CLI routing", () => {
   let cwd: string;
   const origHome = process.env.HOME;
   const origUserProfile = process.env.USERPROFILE;
+  const origHeapReexec = process.env[HEAP_REEXEC_ENV];
   const origArgv = process.argv;
   const origCwd = process.cwd();
   let stderr: ReturnType<typeof vi.spyOn>;
@@ -38,6 +40,7 @@ describe("bare CLI routing", () => {
     cwd = realpathSync(mkdtempSync(join(tmpdir(), "carboncode-cli-cwd-")));
     process.env.HOME = home;
     process.env.USERPROFILE = home;
+    process.env[HEAP_REEXEC_ENV] = "1";
     process.chdir(cwd);
     codeCommand.mockClear();
     chatCommand.mockClear();
@@ -63,6 +66,11 @@ describe("bare CLI routing", () => {
     } else {
       process.env.USERPROFILE = origUserProfile;
     }
+    if (origHeapReexec === undefined) {
+      delete process.env[HEAP_REEXEC_ENV];
+    } else {
+      process.env[HEAP_REEXEC_ENV] = origHeapReexec;
+    }
   });
 
   it("routes bare carboncode to code mode rooted at cwd", async () => {

tests/helpers/codex-parity-harness.ts

@@ -139,6 +139,7 @@ function runCommand(
     const child = spawn(command, [...args], {
       cwd,
       env: { ...process.env, CI: "1" },
+      shell: process.platform === "win32",
       stdio: ["ignore", "pipe", "pipe"],
     });
     const chunks: Buffer[] = [];

tests/ui-flush-interval.test.ts

@@ -0,0 +1,33 @@
+import { describe, expect, it } from "vitest";
+import { resolveFlushIntervalMs } from "../src/cli/ui/flush-interval.js";
+
+describe("resolveFlushIntervalMs", () => {
+  it("defaults to 50ms", () => {
+    expect(resolveFlushIntervalMs({})).toBe(50);
+  });
+
+  it("accepts valid CARBONCODE_FLUSH_MS values", () => {
+    expect(resolveFlushIntervalMs({ CARBONCODE_FLUSH_MS: "16" })).toBe(16);
+    expect(resolveFlushIntervalMs({ CARBONCODE_FLUSH_MS: "33.7" })).toBe(34);
+    expect(resolveFlushIntervalMs({ CARBONCODE_FLUSH_MS: "1000" })).toBe(1000);
+  });
+
+  it("rejects invalid CARBONCODE_FLUSH_MS values", () => {
+    expect(resolveFlushIntervalMs({ CARBONCODE_FLUSH_MS: "15" })).toBe(50);
+    expect(resolveFlushIntervalMs({ CARBONCODE_FLUSH_MS: "1001" })).toBe(50);
+    expect(resolveFlushIntervalMs({ CARBONCODE_FLUSH_MS: "fast" })).toBe(50);
+  });
+
+  it("prefers CARBONCODE_FLUSH_MS over the legacy REASONIX_FLUSH_MS", () => {
+    expect(
+      resolveFlushIntervalMs({
+        CARBONCODE_FLUSH_MS: "80",
+        REASONIX_FLUSH_MS: "120",
+      }),
+    ).toBe(80);
+  });
+
+  it("keeps REASONIX_FLUSH_MS as a legacy fallback", () => {
+    expect(resolveFlushIntervalMs({ REASONIX_FLUSH_MS: "120" })).toBe(120);
+  });
+});