Sync upstream main 12-01-2016

[leeroybrun]

Summary by CodeRabbit

Release Notes

• New Features

  • Added support for development and stable environment variants with separate configuration directories.
  • Added offline mode with automatic background reconnection when server is unavailable.
  • Added JavaScript runtime selection (Node or Bun) for Claude execution.
  • Added profile-based backend configuration and environment variable management.

• Bug Fixes

  • Improved session handling with automatic conversion of --continue to --resume.
  • Added graceful fallback behavior when Happy API server is unreachable.

• Documentation

  • Added comprehensive contributing guidelines for local development.

_{✏️ Tip: You can customize this high-level summary in your review settings.}

[coderabbitai]

📝 Walkthrough

Walkthrough

This pull request introduces a comprehensive development environment setup system, offline session resilience, and centralized permission/reasoning handling. Changes include new development scripts, environment configuration utilities, backend-agnostic offline reconnection with exponential backoff, permission and reasoning processor base classes for code reuse, runtime detection utilities, tmux session management, and extensive test coverage across all new components.

Changes

Cohort / File(s)	Summary
Development Configuration & Setup .envrc.example, .gitignore, scripts/setup-dev.cjs, scripts/link-dev.cjs, scripts/env-wrapper.cjs, bin/happy-dev.mjs	New environment setup files and scripts to manage dev/stable variant environments with isolated home directories, configuration, and daemon instances. Adds direnv support and symlink management for development builds.
Documentation README.md, CONTRIBUTING.md, docs/bug-fix-plan-2025-01-15-athundt.md	Introduces comprehensive contributing guidelines with development workflow, environment setup, and a detailed bug-fix plan covering session continuity and server unavailability handling.
Package Scripts & Dependencies package.json	Restructures build and execution scripts to use npm_execpath, adds new variant management commands (stable/dev daemon, auth), introduces setup and linking utilities, and updates prepublish/release workflows.
Runtime & Launch Scripts scripts/ripgrep_launcher.cjs, scripts/claude_version_utils.cjs, scripts/env-wrapper.cjs	Replaces native addon dependency with multi-path runtime detection (Node/Bun/Deno), enhances Claude CLI discovery with environment variable and Bun support, adds PATH-based and source-detection utilities.
Script Tests & Utilities scripts/__tests__/ripgrep_launcher.test.ts, scripts/claude_version_utils.test.ts, scripts/test-continue-fix.sh	Adds comprehensive test coverage for ripgrep launcher fallback chains, Claude version discovery across platforms, and session-finder validation script.
API & Session Core src/api/api.ts, src/api/api.test.ts, src/api/apiSession.ts, src/api/apiSession.test.ts, src/api/apiMachine.ts, src/api/rpc/RpcHandlerManager.ts	Introduces graceful offline handling by returning null/minimal objects on network errors and 5xx responses; adds offline session warning logging and connection state tracking. Adds socket disconnection guard in WebSocket send.
Permission & Reasoning Architecture src/utils/BasePermissionHandler.ts, src/utils/BaseReasoningProcessor.ts, src/claude/utils/permissionHandler.ts, src/claude/utils/permissionMode.ts, src/claude/utils/permissionMode.test.ts, src/codex/utils/permissionHandler.ts, src/codex/utils/reasoningProcessor.ts, src/gemini/utils/permissionHandler.ts, src/gemini/utils/reasoningProcessor.ts	Introduces shared base classes for permission handling and reasoning processors to eliminate duplication across backends (Claude, Codex, Gemini). Adds centralized permission mode mapping from Codex to Claude-compatible modes.
Claude Session & Local Execution src/claude/claudeLocal.ts, src/claude/claudeLocal.test.ts, src/claude/utils/claudeCheckSession.ts, src/claude/utils/claudeCheckSession.test.ts, src/claude/utils/claudeFindLastSession.ts, src/claude/utils/claudeFindLastSession.test.ts, src/claude/utils/path.test.ts	Implements offline session resumption via --continue to --resume conversion, session discovery by UUID/messageId/leafUuid, and session finding utilities with validation across multiple file formats.
Claude Remote & Runtime Config src/claude/claudeRemote.ts, src/claude/claudeRemoteLauncher.ts, src/claude/session.ts, src/claude/sdk/utils.ts, src/claude/runClaude.ts, src/claude/loop.ts	Adds jsRuntime option (node/bun) for Claude Code execution; centralizes PermissionMode type from api/types; removes Bun-specific env vars to prevent interference; threads runtime selection through session lifecycle.
Codex & Gemini Integration src/codex/runCodex.ts, src/codex/codexMcpClient.ts, src/gemini/runGemini.ts, src/gemini/types.ts	Integrates offline reconnection mechanism with automatic session swapping; adds graceful error handling for unavailable backends; centralizes permission mode types; adds explicit Codex availability validation.
Offline Reconnection & Session Management src/utils/serverConnectionErrors.ts, src/utils/serverConnectionErrors.test.ts, src/utils/setupOfflineReconnection.ts, src/utils/offlineSessionStub.ts, src/utils/createSessionMetadata.ts	Introduces backend-agnostic offline reconnection with exponential backoff (~5s–60s), health check validation, session stub fallback, connection state deduplication, and unified session metadata factory.
Runtime & Environment Utilities src/utils/runtime.ts, src/utils/__tests__/runtime.test.ts, src/utils/__tests__/runtimeIntegration.test.ts, src/utils/expandEnvVars.ts, src/utils/expandEnvVars.test.ts	Adds runtime detection (Node/Bun/Deno), environment variable expansion with default support and sensitive-value masking, and comprehensive test coverage.
TMUX Session Management src/utils/tmux.ts, src/utils/tmux.test.ts	Introduces full-featured TMUX utilities for session creation, window management, environment detection, and cross-platform spawning with type-safe session identifiers.
Type & API Updates src/api/types.ts, src/index.ts	Adds PermissionMode enum type with validation; adds --js-runtime CLI argument support (node/bun); hardens permission mode validation in schemas.
Persistence & Profile Management src/persistence.ts	Introduces profile-based backend configuration with environment variable support, schema versioning, migration helpers, active profile tracking, and per-profile environment overrides.
Daemon & Command Execution src/daemon/run.ts, src/daemon/types.ts, src/modules/common/registerCommonHandlers.ts	Adds profile-based environment loading, TMUX session support for daemon spawning, environment variable expansion with validation, optional cwd support, and comprehensive logging.
Configuration & CLI src/configuration.ts, src/commands/auth.ts	Adds dev/stable mode visual indicator banners and variant mismatch warnings; removes backup subcommand from auth; updates help text for multi-line formatting.
Logging & Utilities src/ui/logger.ts, src/ui/auth.ts, src/claude/utils/permissionHandler.ts, src/utils/spawnHappyCLI.ts, src/utils/deepEqual.ts	Moves logger import to lazy dynamic import to avoid circular dependency; adds DEBUG environment check for sensitive logging; replaces deepEqual with isDeepStrictEqual from Node; adds Bun runtime detection in spawn selection.

Sequence Diagram(s)

sequenceDiagram
    participant User as User
    participant CLI as CLI
    participant API as API Client
    participant OfflineRec as Offline Reconnection
    participant SessionStub as Session Stub
    participant RealSession as Real Session
    
    User->>CLI: Start agent (server unavailable)
    CLI->>API: getOrCreateSession()
    API-->>CLI: null (network error)
    CLI->>OfflineRec: setupOfflineReconnection()
    OfflineRec->>SessionStub: createOfflineSessionStub()
    SessionStub-->>CLI: Offline session (sessionId: offline-*)
    CLI->>User: Begin session (offline mode)
    
    OfflineRec->>OfflineRec: Start exponential backoff loop
    loop Health check & retry (~5s–60s)
        OfflineRec->>API: Health check request
        alt Server recovers
            API-->>OfflineRec: Success
            OfflineRec->>OfflineRec: Cancel backoff
            OfflineRec->>API: getOrCreateSession()
            API-->>RealSession: Real session
            OfflineRec->>CLI: onSessionSwap(realSession)
            CLI->>CLI: Update session reference
            CLI->>User: Notify reconnection success
        else Network still down
            API-->>OfflineRec: Network error
            OfflineRec->>OfflineRec: Increase backoff delay
        else Auth failure (401)
            API-->>OfflineRec: Auth error
            OfflineRec->>User: Notify: re-authenticate required
            OfflineRec->>OfflineRec: Cancel reconnection
        end
    end

Loading

Estimated code review effort

🎯 4 (Complex) | ⏱️ ~75 minutes

Poem

🐰 A bunny's hop through code so grand,
New sessions built on solid sand,
When servers sleep, we softly reconnect,
Permission modes now neatly checked,
With TMUX windows and runtime glee,
Happy CLI now works offline, you see! 🌙

🚥 Pre-merge checks | ✅ 1 | ❌ 2

❌ Failed checks (2 warnings)

Check name	Status	Explanation	Resolution
Title check	⚠️ Warning	The PR title 'Sync upstream main 12-01-2016' is misleading and inaccurate; the date format appears incorrect (12-01-2016 is in the past, but current date is January 2026), and the title does not reflect the actual substantial changes in the PR.	Update the title to accurately describe the main changes. Examples: 'Add offline mode support and permission mode standardization' or 'Implement session management, offline reconnection, and profile-based configuration'.
Docstring Coverage	⚠️ Warning	Docstring coverage is 66.04% which is insufficient. The required threshold is 80.00%.	Write docstrings for the functions missing them to satisfy the coverage threshold.

✅ Passed checks (1 passed)

Check name	Status	Explanation
Description Check	✅ Passed	Check skipped - CodeRabbit’s high-level summary is enabled.

_{✏️ Tip: You can configure your own custom pre-merge checks in the settings.}

✨ Finishing touches

• 📝 Generate docstrings

---

Thanks for using CodeRabbit! It's free for OSS, and your support helps us grow. If you like it, consider giving us a shout-out.

❤️ Share

• X
• Mastodon
• Reddit
• LinkedIn

_{Comment @coderabbitai help to get the list of available commands and usage tips.}

[coderabbitai]

Actionable comments posted: 13

Caution

Some comments are outside the diff and can’t be posted inline due to platform limitations.

⚠️ Outside diff range comments (4)

src/utils/spawnHappyCLI.ts (1)

89-104: Apply runtime-specific CLI flags instead of using Node.js-only flags for Bun.

Bun does not support the --no-warnings CLI flag (only --no-deprecation). Passing --no-warnings to Bun may cause unexpected behavior. Conditionally apply these flags based on the runtime to ensure compatibility:

♻️ Suggested conditional flag handling

-  // Use the same Node.js flags that the wrapper script uses
-  const nodeArgs = [
-    '--no-warnings',
-    '--no-deprecation',
-    entrypoint,
-    ...args
-  ];
+  // Apply runtime-specific flags
+  const runtimeArgs = isBun() 
+    ? [entrypoint, ...args]  // Bun doesn't support --no-warnings
+    : ['--no-warnings', '--no-deprecation', entrypoint, ...args];

src/codex/codexMcpClient.ts (1)

240-250: Documentation doesn't match implementation.

The docstring at line 242 states the function "Returns null if codex is not installed" but getCodexMcpCommand() has return type string and always returns either 'mcp-server' or 'mcp', never null. The null check is actually performed in connect() using versionInfo.raw.

📝 Suggested fix for documentation

 /**
  * Get the correct MCP subcommand based on installed codex version
  * Versions >= 0.43.0-alpha.5 use 'mcp-server', older versions use 'mcp'
- * Returns null if codex is not installed or version cannot be determined
+ * Defaults to 'mcp-server' if version cannot be determined
  */

src/index.ts (1)

489-495: Potential Windows compatibility issue with execFileSync on a .cjs script.

On Windows, execFileSync cannot rely on the shebang (#!/usr/bin/env node) to determine the interpreter. The script may fail to execute because Windows doesn't recognize shebangs natively.

🔧 Suggested fix for cross-platform compatibility

       try {
-        const claudeHelp = execFileSync(claudeCliPath, ['--help'], { encoding: 'utf8' })
+        const claudeHelp = execFileSync(process.execPath, [claudeCliPath, '--help'], { encoding: 'utf8' })
         console.log(claudeHelp)
       } catch (e) {

Alternatively, use shell: true:

-        const claudeHelp = execFileSync(claudeCliPath, ['--help'], { encoding: 'utf8' })
+        const claudeHelp = execFileSync(claudeCliPath, ['--help'], { encoding: 'utf8', shell: true })

src/persistence.ts (1)

384-386: Potential data loss: updateSettings bypasses schema version enforcement.

updateSettings writes via direct writeFile (line 385) without calling writeSettings, so the schemaVersion enforcement from writeSettings is bypassed. If an updater returns settings without schemaVersion, the file could be written without it.

🔧 Proposed fix: Ensure schemaVersion is always written

     // Write atomically using rename
-    await writeFile(tmpFile, JSON.stringify(updated, null, 2));
+    const settingsWithVersion = {
+      ...updated,
+      schemaVersion: updated.schemaVersion ?? SUPPORTED_SCHEMA_VERSION
+    };
+    await writeFile(tmpFile, JSON.stringify(settingsWithVersion, null, 2));
     await rename(tmpFile, configuration.settingsFile); // Atomic on POSIX

🤖 Fix all issues with AI agents

In @docs/bug-fix-plan-2025-01-15-athundt.md:
- Around line 146-157: The mock returned by mockSpawn.mockReturnValue defines
the `on` property twice which overwrites the first; remove the duplicate `on:
vi.fn()` so the process mock has a single `on: vi.fn()` and keep `addListener`,
`removeListener`, `kill`, plus the stream mocks `stdout: { on: vi.fn() }`,
`stderr: { on: vi.fn() }`, and `stdin: { on: vi.fn(), end: vi.fn() }` to
preserve expected event handlers.

In @scripts/claude_version_utils.test.ts:
- Around line 35-38: The test for detectSourceFromPath is asserting 'npm' for a
path that lacks "claude-code" and therefore should return 'PATH'; either change
the expected value to 'PATH' for the current test input (the path containing
"@babel/core") or alter the test path to include "claude-code" under
node_modules (so detectSourceFromPath will legitimately return 'npm'); update
the assertion correspondingly and keep the test name accurate to reflect which
scenario is being validated.

In @scripts/ripgrep_launcher.cjs:
- Around line 39-55: The loop that tries each command uses execFileSync in
ripgrep_launcher.cjs but passes stdio: 'ignore', so execFileSync cannot capture
stdout into the result; change the execFileSync call in that loop (the one
creating const result = execFileSync(cmd, args, {...})) to allow capturing
output by removing stdio: 'ignore' or setting stdio: 'pipe' (keep encoding:
'utf8'), then use result.trim().split('\n') as before to extract the first path;
keep the existing try/catch behavior so failed commands still fall through.

In @scripts/test-continue-fix.sh:
- Around line 27-66: The script currently calls readdirSync(projectDir) without
verifying projectDir exists; add an existence check (e.g., using existsSync or
try/catch around statSync) immediately before the readdirSync call and if the
directory is missing log a clear error and exit non‑zero; update the block that
builds files (look for the readdirSync(projectDir) line and the projectDir
variable) to early-return/exit with a helpful message when the directory does
not exist so the subsequent file reads do not throw an unhelpful exception.

In @src/api/api.test.ts:
- Around line 221-237: The console.log spy is created after calling
api.getOrCreateSession so it misses any logs; move the vi.spyOn(console, 'log')
call (and its mockImplementation) to before invoking api.getOrCreateSession in
the "should re-throw non-connection errors" test (keep consoleSpy variable name
and restore it after the assertion), then perform the
expect(consoleSpy).not.toHaveBeenCalledWith(...) assertion to ensure no
offline-mode message was logged; keep mockPost mocked to reject with authError
and ensure consoleSpy.mockRestore() runs afterwards.

In @src/api/api.ts:
- Around line 202-210: The Machine type's metadata property is declared as
MachineMetadata but code in the deserialization (the Machine object
construction) assigns either a decrypted value or null; update the Machine type
declaration so metadata: MachineMetadata | null to match the runtime behavior
(similar to how daemonState is already nullable), and run type checks to ensure
any code consuming Machine handles the nullable metadata.

In @src/api/apiSession.ts:
- Around line 197-201: The send methods are inconsistent about handling a
disconnected socket: some (the Claude send block) early-return on
!this.socket.connected while sendCodexMessage logs but still emits and
sendAgentMessage/sendSessionEvent lack checks; add a private helper (e.g.,
canSend(context: string): boolean) that checks this.socket.connected and calls
logger.debug(`[API] Socket not connected, cannot send ${context}. Message will
be lost`) then returns false, and use that helper at the start of
sendCodexMessage, sendAgentMessage, sendSessionEvent and the Claude send method
to uniformly early-return when it returns false, ensuring no emits happen when
disconnected.

In @src/claude/claudeLocal.ts:
- Around line 173-189: The code inside the opts.hookSettingsPath false branch
redeclares hasResumeFlag, shadowing the outer variable and risking confusion;
remove the inner declaration and use the existing hasResumeFlag (or rename
consistently) when checking for resume flags in the block that builds args (the
branch that pushes '--session-id' or '--resume'), i.e., replace `const
hasResumeFlag = ...` with a reference to the outer hasResumeFlag so the check
`else if (!hasResumeFlag && newSessionId)` uses the intended variable.

In @src/claude/runClaude.ts:
- Around line 131-148: The AbortController created inline when calling
claudeLocal is never aborted; create a named AbortController (e.g., const
abortController = new AbortController()) before the try, pass
abortController.signal to claudeLocal instead of new AbortController().signal,
and wire process signal handlers (process.on('SIGINT') and
process.on('SIGTERM')) to call abortController.abort() and perform the same
cleanup (reconnection.cancel() and stopCaffeinate()) so the offline session can
be interrupted; keep the existing finally block to ensure cleanup and remove any
unused inline AbortController.

In @src/daemon/run.ts:
- Line 3: Remove the unused import of the tmp module from the top of the file:
delete the line importing "tmp" (the import statement "import * as tmp from
'tmp';") in src/daemon/run.ts so the unused symbol is not retained.

In @src/utils/tmux.ts:
- Around line 447-459: The code in executeTmuxCommand builds fullCmd and
unconditionally appends '-t' when COMMANDS_SUPPORTING_TARGET matches, which
causes duplicate '-t' for commands whose templates in WIN_OPS already include
'-t'. Fix it by detecting whether the assembled cmd already contains a '-t' flag
(e.g., check cmd.includes('-t') or inspect the last token of cmd) before pushing
'-t' and the target; reference COMMANDS_SUPPORTING_TARGET, WIN_OPS,
executeTmuxCommand, baseCmd and fullCmd and ensure you only append '-t' and
target when no '-t' is already present.
- Around line 376-410: The TMUX parsing code incorrectly treats parts[1] as a
path and extracts a session/window from it; instead treat TMUX as
"socket_path,server_pid,pane_id" (so socket_path = parts[0], server_pid =
parts[1], pane = parts[2]) and do not derive session/window from parts[1]. Fix
the logic in the TMUX parsing function (the block using tmuxEnv, parts,
socketPath, sessionAndWindow, pane) to: 1) stop splitting parts[1] by '/' and
stop using it as session; 2) set socket_path = parts[0] and pane = parts[2]; and
3) obtain real session and window by querying tmux (e.g., use TMUX_PANE
environment variable if available or run tmux display-message -p
'#{session_name}' and '#{window_index}' via a safe exec wrapper) and include
fallback handling/logging on failure before returning { session, window, pane,
socket_path } or null.

🧹 Nitpick comments (39)

src/claude/utils/path.test.ts (2)

5-18: Consider using Vitest's vi.stubEnv() for environment variable manipulation.

Vitest provides vi.stubEnv() and vi.unstubAllEnvs() as the idiomatic approach for stubbing environment variables. This avoids reassigning the entire process.env object and is automatically restored after each test.

♻️ Suggested refactor using Vitest utilities

-import { describe, it, expect, beforeEach, afterEach } from 'vitest';
+import { describe, it, expect, beforeEach, afterEach, vi } from 'vitest';
 import { getProjectPath } from './path';
 import { join } from 'node:path';

-// Store original env
-const originalEnv = { ...process.env };
-
 describe('getProjectPath', () => {
     beforeEach(() => {
-        // Reset process.env to a clean state - make a fresh copy each time
-        process.env = { ...originalEnv };
-        delete process.env.CLAUDE_CONFIG_DIR;
+        vi.unstubAllEnvs();
     });

     afterEach(() => {
-        // Restore original env
-        process.env = { ...originalEnv };
+        vi.unstubAllEnvs();
     });

     it('should replace slashes with hyphens in the project path', () => {
-        process.env.CLAUDE_CONFIG_DIR = '/test/home/.claude';
+        vi.stubEnv('CLAUDE_CONFIG_DIR', '/test/home/.claude');

---

20-54: Unit tests using Unix absolute paths may fail if run on Windows CI.

Windows is explicitly tested in the smoke-test workflow, but unit tests are not currently run in CI. The tests hardcode Unix absolute paths (e.g., /Users/steve/projects/my-app), and on Windows, resolve() would prepend the drive letter (e.g., C:\), causing the regex replacement to produce C-Users-steve-projects-my-app instead of the expected -Users-steve-projects-my-app.

If unit tests are run on Windows in the future, they will fail. Consider using relative paths or platform-aware path construction for these tests to ensure they pass across platforms.

CONTRIBUTING.md (1)

267-273: Add language specifier to fenced code block.

The fenced code block is missing a language specifier, which helps with syntax highlighting and accessibility.

📝 Suggested fix

 1. **Create profile in GUI:**
-   ```
+   ```text
    - Open Happy mobile/web app
    - Settings → AI Backend Profiles
    - Create new profile with custom environment variables
    - Note the profile ID
    ```

scripts/claude_version_utils.cjs (1)

104-109: Remove redundant require('path') statement.

The path module is already imported at line 16. This redundant require adds unnecessary overhead.

♻️ Suggested fix

 function detectSourceFromPath(resolvedPath) {
     const normalized = resolvedPath.toLowerCase();
-    const path = require('path');
-
-    // Use path.normalize() for proper cross-platform path handling
-    const normalizedPath = path.normalize(resolvedPath).toLowerCase();
+    // Use path.normalize() for proper cross-platform path handling
+    const normalizedPath = require('path').normalize(resolvedPath).toLowerCase();

Or better, just use the already-imported path:

 function detectSourceFromPath(resolvedPath) {
-    const normalized = resolvedPath.toLowerCase();
-    const path = require('path');
-
     // Use path.normalize() for proper cross-platform path handling
-    const normalizedPath = path.normalize(resolvedPath).toLowerCase();
+    const normalizedPath = path.normalize(resolvedPath).toLowerCase();

src/configuration.ts (1)

71-78: Console output may interfere with programmatic usage.

The unconditional console.log on startup could interfere with CLI output parsing when users pipe results to other tools or expect JSON output. Consider checking for TTY or adding an environment variable to suppress the banner.

♻️ Suggested improvement

     // Visual indicator on CLI startup (only if not daemon process to avoid log clutter)
-    if (!this.isDaemonProcess) {
+    if (!this.isDaemonProcess && process.stdout.isTTY) {
       if (variant === 'dev') {
         console.log('\x1b[33m🔧 DEV MODE\x1b[0m - Data: ' + this.happyHomeDir)
       } else {
         console.log('\x1b[32m✅ STABLE MODE\x1b[0m - Data: ' + this.happyHomeDir)
       }
     }

src/utils/__tests__/runtime.test.ts (2)

5-7: Unnecessary mock clearing.

vi.clearAllMocks() has no effect since this test suite doesn't set up any mocks. Consider removing it or replacing with logic to reset the cached runtime state if test isolation is a concern.

---

9-35: Tests are effectively skipped on non-matching runtimes.

The conditional guards mean these tests only execute assertions when running on the matching runtime. In standard CI (Node.js), only the Node.js test will actually assert anything. Consider adding a comment clarifying this is intentional, or using it.skipIf for clearer intent.

♻️ Example using skipIf for clarity

-    it('detects Node.js runtime correctly', () => {
-        // Test actual runtime detection
-        if (process.versions.node && !process.versions.bun && !process.versions.deno) {
-            expect(getRuntime()).toBe('node');
-            expect(isNode()).toBe(true);
-            expect(isBun()).toBe(false);
-            expect(isDeno()).toBe(false);
-        }
-    });
+    it.skipIf(!process.versions.node || process.versions.bun || process.versions.deno)(
+        'detects Node.js runtime correctly',
+        () => {
+            expect(getRuntime()).toBe('node');
+            expect(isNode()).toBe(true);
+            expect(isBun()).toBe(false);
+            expect(isDeno()).toBe(false);
+        }
+    );

bin/happy-dev.mjs (1)

17-19: Duplicated environment variable setup.

The environment variables are set identically in both branches. Consider extracting to avoid duplication.

♻️ Suggested refactor

+// Set development environment variables
+process.env.HAPPY_HOME_DIR = join(homedir(), '.happy-dev');
+process.env.HAPPY_VARIANT = 'dev';
+
 if (!hasNoWarnings || !hasNoDeprecation) {
   // Re-execute with the flags
   const __filename = fileURLToPath(import.meta.url);
   const scriptPath = join(dirname(__filename), '../dist/index.mjs');

-  // Set development environment variables
-  process.env.HAPPY_HOME_DIR = join(homedir(), '.happy-dev');
-  process.env.HAPPY_VARIANT = 'dev';
-
   try {
     execFileSync(
       process.execPath,
@@ ... @@
 } else {
   // Already have the flags, import normally
-  // Set development environment variables
-  process.env.HAPPY_HOME_DIR = join(homedir(), '.happy-dev');
-  process.env.HAPPY_VARIANT = 'dev';
-
   await import('../dist/index.mjs');
 }

Also applies to: 37-38

src/utils/offlineSessionStub.ts (1)

34-53: Type assertion bypasses compile-time safety.

The as unknown as ApiSessionClient cast means that if ApiSessionClient interface changes (new required methods added), this stub won't fail at compile time, potentially causing runtime errors.

Consider using satisfies or implementing an explicit type check to catch interface drift:

♻️ Suggested improvement for type safety

-export function createOfflineSessionStub(sessionTag: string): ApiSessionClient {
-    return {
+export function createOfflineSessionStub(sessionTag: string): ApiSessionClient {
+    const stub: ApiSessionClient = {
         sessionId: `offline-${sessionTag}`,
         sendCodexMessage: () => {},
         sendClaudeSessionMessage: () => {},
         keepAlive: () => {},
         sendSessionEvent: () => {},
         sendSessionDeath: () => {},
         updateLifecycleState: () => {},
         requestControlTransfer: async () => {},
         flush: async () => {},
         close: async () => {},
         updateMetadata: () => {},
         updateAgentState: () => {},
         onUserMessage: () => {},
         rpcHandlerManager: {
             registerHandler: () => {}
-        }
-    } as unknown as ApiSessionClient;
+        } as ApiSessionClient['rpcHandlerManager']
+    };
+    return stub;
 }

If the full interface is too complex, at minimum add a comment documenting that this stub must be updated when ApiSessionClient changes.

src/utils/__tests__/runtimeIntegration.test.ts (2)

4-14: Caching test may not verify internal caching behavior.

ES modules are cached by the runtime, so re-importing ../runtime.js returns the same module instance. Both getRuntime and getRuntime2 reference the identical function, making this test always pass regardless of whether getRuntime() implements internal caching.

To truly test the internal caching (the cachedRuntime variable in runtime.ts), you would need to either:

1. Export a cache-clearing function for testing
2. Use vi.resetModules() between imports to force fresh module evaluation

That said, the test still validates consistency, which has value.

---

50-54: Duplicate test assertion.

This test ('provides correct runtime type') duplicates the assertion already made in line 13 of the first test. Consider removing this test or combining them.

src/api/apiSession.test.ts (1)

59-66: Unused variable client.

The client variable is assigned but never used. The test works because the constructor registers event listeners, but consider either:

• Prefixing with underscore: const _client = ...
• Adding a comment explaining the variable is intentionally unused

♻️ Minor fix

     it('should emit correct events on socket connection', () => {
-        const client = new ApiSessionClient('fake-token', mockSession);
+        // Client instantiation triggers event listener registration
+        new ApiSessionClient('fake-token', mockSession);
 
         // Should have set up event listeners
         expect(mockSocket.on).toHaveBeenCalledWith('connect', expect.any(Function));

scripts/__tests__/ripgrep_launcher.test.ts (2)

8-93: Consider simplifying test structure by removing redundant expect().not.toThrow() wrappers.

The outer expect(() => { ... }).not.toThrow() pattern is unnecessary here since:

1. fs.readFileSync will throw if the file doesn't exist, causing the test to fail naturally
2. The inner expect().toContain() assertions don't throw on failure—they report assertion errors

Additionally, fs and path are require()'d repeatedly in each test. Extract them once at the module level.

♻️ Suggested simplification

 import { describe, it, expect, vi, beforeEach } from 'vitest';
+import * as fs from 'fs';
+import * as path from 'path';
+
+const launcherContent = fs.readFileSync(
+    path.join(__dirname, '../ripgrep_launcher.cjs'),
+    'utf8'
+);

 describe('Ripgrep Launcher Runtime Compatibility', () => {
     beforeEach(() => {
         vi.clearAllMocks();
     });

     it('has correct file structure', () => {
-        expect(() => {
-            const fs = require('fs');
-            const path = require('path');
-            const content = fs.readFileSync(path.join(__dirname, '../ripgrep_launcher.cjs'), 'utf8');
-
-            expect(content).toContain('#!/usr/bin/env node');
-            expect(content).toContain('ripgrepMain');
-            expect(content).toContain('loadRipgrepNative');
-        }).not.toThrow();
+        expect(launcherContent).toContain('#!/usr/bin/env node');
+        expect(launcherContent).toContain('ripgrepMain');
+        expect(launcherContent).toContain('loadRipgrepNative');
     });
     // Apply similar pattern to remaining tests...
 });

---

4-6: vi.clearAllMocks() is unused.

None of these tests create or use mocks, so this beforeEach hook has no effect. Consider removing it to reduce noise.

src/api/types.ts (1)

4-16: Good documentation of the type and its SDK boundary mapping.

The JSDoc clearly explains the dual-mode nature (Claude vs Codex) and the mapping rules. The reminder to keep this in sync with MessageMetaSchema.permissionMode is helpful.

Consider extracting the enum values to a constant array to ensure single-source-of-truth:

♻️ Optional: Single source of truth for enum values

const PERMISSION_MODES = ['default', 'acceptEdits', 'bypassPermissions', 'plan', 'read-only', 'safe-yolo', 'yolo'] as const;

export type PermissionMode = typeof PERMISSION_MODES[number];

// Then in MessageMetaSchema:
permissionMode: z.enum(PERMISSION_MODES).optional(),

src/utils/runtime.ts (2)

9-10: Consider exposing a cache reset for testability.

The module-level cache prevents repeated detection but makes unit tests difficult to verify different runtime scenarios in isolation. Consider adding an internal reset function (e.g., _resetForTesting) or using a different pattern that allows test mocking.

♻️ Optional: Add test reset capability

 // Cache result after first detection (performance optimization)
 let cachedRuntime: Runtime | null = null;
+
+/** @internal Reset cache for testing only */
+export function _resetRuntimeCache(): void {
+    cachedRuntime = null;
+}

---

30-44: Consider using import { process } from "node:process" instead of the global process for Deno compatibility.

Deno exposes the process global by default, so the optional chaining (process?.versions?.bun) is safe and functions correctly. However, Deno's linters discourage using the global process and recommend importing from "node:process" instead. This is a minor style preference rather than a functional issue, but following this convention improves consistency with Deno best practices.

src/claude/utils/permissionMode.ts (1)

19-26: Consider handling undefined or unknown modes more explicitly.

The fallback mode as ClaudeSdkPermissionMode will pass through any string, including invalid/typo modes like 'defualt'. Since PermissionMode is a union type from @/api/types, this should be safe at compile time, but runtime values could slip through if the type isn't enforced at boundaries.

The current implementation is pragmatic and works well for the documented 7 modes. If stricter validation is desired later, consider logging unknown modes or defaulting to 'default'.

src/utils/serverConnectionErrors.test.ts (1)

244-256: Misleading comment about onCleanup behavior.

The comment on lines 252-253 states that onCleanup should "only be called once per cancel() call," but the assertion on line 254 expects it to be called 3 times (once for each cancel() invocation). This is actually correct behavior per the implementation, but the comment phrasing is confusing.

Consider clarifying the comment:

-            // onCleanup should still only be called once per cancel() call
-            // (cancel sets cancelled=true, preventing further action)
+            // onCleanup is called on each cancel() invocation
+            // (idempotent cancellation - safe to call multiple times)
             expect(onCleanup).toHaveBeenCalledTimes(3);

scripts/ripgrep_launcher.cjs (1)

70-76: Minor: /opt/homebrew/bin/rg is macOS-specific, not Linux.

The /opt/homebrew/bin/rg path in the Linux fallback list is Homebrew on Apple Silicon, not a Linux path. While harmless (the path won't exist on Linux), it's misleading.

♻️ Suggested cleanup

     } else if (process.platform === 'linux') {
         commonPaths.push(
             '/usr/bin/rg',
-            '/usr/local/bin/rg',
-            '/opt/homebrew/bin/rg'
+            '/usr/local/bin/rg'
         );
     }

src/utils/expandEnvVars.test.ts (1)

239-249: Consider adding a comment explaining the undefined as any cast.

The cast is intentional to test edge case handling when source is undefined, but a brief comment would clarify this for future readers.

♻️ Suggested improvement

     it('should handle undefined source environment gracefully', () => {
         const envVars = {
             TARGET: '${MISSING}'
         };
 
-        // undefined source should fall back to process.env
+        // Test edge case: undefined source should fall back to process.env
+        // Using `as any` to bypass TypeScript and test runtime behavior
         const result = expandEnvironmentVariables(envVars, undefined as any);

docs/bug-fix-plan-2025-01-15-athundt.md (1)

12-14: Add language specifiers to fenced code blocks.

Several code blocks are missing language specifiers, which affects syntax highlighting and accessibility. Based on markdownlint hints.

♻️ Suggested fixes

Line 12: Add text or plaintext for the error message block.
Lines 25 and 38: Add text or plaintext for the pathway diagrams.

-```
+```text
 Error: --session-id cannot be used with --continue or --resume

-```
+```text
    user: happy --continue
    → index.ts (claudeArgs = ["--continue"])

Also applies to: 25-35, 38-44

src/claude/utils/claudeFindLastSession.test.ts (1)

68-88: Unnecessary async keyword.

The test function is marked async but doesn't use await. While harmless, it's inconsistent with other tests in this file.

Suggested fix

-        it('should find most recent session by mtime (uuid format)', async () => {
+        it('should find most recent session by mtime (uuid format)', () => {

scripts/link-dev.cjs (1)

107-122: Broad string match for symlink validation.

The check linkTarget.includes('happy-cli') at line 111 could match unintended paths (e.g., /some/happy-cli-fork/bin/happy-dev). Consider using a more precise check.

Suggested improvement

-            if (linkTarget === binSource || linkTarget.includes('happy-cli')) {
+            // Check exact match or if it points to our project's bin directory
+            if (linkTarget === binSource || linkTarget.includes('/happy-cli/bin/')) {

src/claude/claudeLocal.ts (1)

54-79: In-place mutation of opts.claudeArgs may cause unexpected side effects.

The extractFlag helper mutates opts.claudeArgs via filter() reassignment. This side effect could surprise callers who don't expect their input to be modified. Consider working on a copy or documenting this behavior explicitly.

Alternative: work on a local copy

+    // Work on a copy to avoid mutating the original array
+    let claudeArgs = opts.claudeArgs ? [...opts.claudeArgs] : [];
+
     const extractFlag = (flags: string[], withValue: boolean = false): { found: boolean; value?: string } => {
-        if (!opts.claudeArgs) return { found: false };
+        if (!claudeArgs.length) return { found: false };
 
         for (const flag of flags) {
-            const index = opts.claudeArgs.indexOf(flag);
+            const index = claudeArgs.indexOf(flag);
             if (index !== -1) {
-                if (withValue && index + 1 < opts.claudeArgs.length) {
-                    const nextArg = opts.claudeArgs[index + 1];
+                if (withValue && index + 1 < claudeArgs.length) {
+                    const nextArg = claudeArgs[index + 1];
                     if (!nextArg.startsWith('-')) {
                         const value = nextArg;
-                        opts.claudeArgs = opts.claudeArgs.filter((_, i) => i !== index && i !== index + 1);
+                        claudeArgs = claudeArgs.filter((_, i) => i !== index && i !== index + 1);
                         return { found: true, value };
                     }
                 }
                 if (!withValue) {
-                    opts.claudeArgs = opts.claudeArgs.filter((_, i) => i !== index);
+                    claudeArgs = claudeArgs.filter((_, i) => i !== index);
                     return { found: true };
                 }
                 return { found: false };
             }
         }
         return { found: false };
     };

src/utils/setupOfflineReconnection.ts (1)

99-102: Consider using logger instead of console.log for consistency.

The onNotify callback uses console.log directly. For consistency with the rest of the codebase that uses the logger utility, consider whether this should use logger.info instead, especially since the comment mentions it "matches Claude's behavior."

src/codex/runCodex.ts (1)

121-140: Forward reference pattern for permissionHandler is unusual but functional.

The permissionHandler is declared at line 125 but assigned at line 465. This works because JavaScript hoists let declarations, but the variable is in the temporal dead zone until assigned. The onSessionSwap callback checks if (permissionHandler) which is safe, but this pattern could be confusing.

Consider documenting this pattern or restructuring to assign immediately after session setup if possible.

src/gemini/utils/permissionHandler.ts (1)

46-84: Consider extracting writeTools constant outside the switch.

The writeTools array on line 76 is declared inside the switch case. While this works, extracting it as a class-level constant would improve readability and avoid re-allocation on each call.

Suggested refactor

+const WRITE_TOOLS = ['write', 'edit', 'create', 'delete', 'patch', 'fs-edit'];
+
 export class GeminiPermissionHandler extends BasePermissionHandler {
     // ...
     private shouldAutoApprove(toolName: string, toolCallId: string, input: unknown): boolean {
         // ...
         switch (this.currentPermissionMode) {
             // ...
             case 'read-only':
-                const writeTools = ['write', 'edit', 'create', 'delete', 'patch', 'fs-edit'];
-                const isWriteTool = writeTools.some(wt => toolName.toLowerCase().includes(wt));
+                const isWriteTool = WRITE_TOOLS.some(wt => toolName.toLowerCase().includes(wt));
                 return !isWriteTool;

src/daemon/run.ts (2)

379-465: Tmux spawning includes full process.env which may be excessive.

Lines 400-405 copy the entire process.env into tmuxEnv. While this ensures completeness, it may include sensitive variables or create unnecessarily large environment blocks. Consider filtering to only essential variables if this becomes problematic.

---

584-588: Unreachable code path may indicate logic gap.

This return statement claims to be unreachable, but it can be reached if:

1. useTmux is true and tmuxSessionName !== undefined on line 379
2. Tmux spawn succeeds (tmuxResult.success is true) on line 416
3. But then the function returns from inside the promise on line 441-461

The code after line 466 (if (!useTmux)) would not execute in this case. However, if tmux spawn fails and useTmux is set to false on line 464, then the regular spawn on line 469 executes.

The comment is correct - this code should never execute. Consider adding a throw instead of a return for defensive programming.

Suggested change

-        // This should never be reached, but TypeScript requires a return statement
-        return {
-          type: 'error',
-          errorMessage: 'Unexpected error in session spawning'
-        };
+        // This should never be reached - if we get here, there's a logic error
+        throw new Error('Unexpected code path in session spawning - this indicates a bug');

src/persistence.ts (5)

109-111: Consider adding a guard for undefined compatibility field.

If profile.compatibility is undefined (e.g., from malformed data bypassing Zod), this will throw. While Zod parsing should prevent this, defensive coding would be safer.

♻️ Suggested defensive check

 export function validateProfileForAgent(profile: AIBackendProfile, agent: 'claude' | 'codex' | 'gemini'): boolean {
-  return profile.compatibility[agent];
+  return profile.compatibility?.[agent] ?? false;
 }

---

183-195: Potential issue: validateProfileVersion returns false for valid profiles without explicit version.

Line 186 returns false when profile.version is falsy, but the schema at line 103 sets a default of '1.0.0'. After Zod parsing, version should always be present. However, if this function is called on raw data before validation, it may produce unexpected results.

💡 Consider documenting expected input state

 // Profile version validation
+// Note: Should only be called on Zod-validated profiles where `version` is guaranteed
 export function validateProfileVersion(profile: AIBackendProfile): boolean {

---

316-322: Redundant nullish coalescing: schemaVersion should always be set.

At line 319, settings.schemaVersion ?? SUPPORTED_SCHEMA_VERSION is applied, but readSettings() already ensures schemaVersion is present via the merge with defaultSettings. This is harmless but slightly redundant.

---

618-623: setActiveProfile doesn't validate that the profile ID exists.

Setting an active profile ID that doesn't exist in profiles would silently succeed but leave the system in an inconsistent state. Consider adding a validation step.

♻️ Suggested validation

 export async function setActiveProfile(profileId: string): Promise<void> {
-  await updateSettings(settings => ({
-    ...settings,
-    activeProfileId: profileId
-  }));
+  await updateSettings(settings => {
+    const profileExists = settings.profiles.some(p => p.id === profileId);
+    if (!profileExists) {
+      logger.warn(`⚠️ Setting active profile to non-existent ID: ${profileId}`);
+    }
+    return {
+      ...settings,
+      activeProfileId: profileId
+    };
+  });
 }

---

649-667: getEnvironmentVariables and getProfileEnvironmentVariables have overlapping logic.

Both functions iterate over profile.environmentVariables to build a Record<string, string>. Consider reusing getProfileEnvironmentVariables in getEnvironmentVariables to reduce duplication and ensure consistency.

♻️ Suggested refactor

 export async function getEnvironmentVariables(profileId: string): Promise<Record<string, string>> {
   const settings = await readSettings();
   const profile = settings.profiles.find(p => p.id === profileId);
   if (!profile) return {};

-  // Start with profile's environment variables (new schema)
-  const envVars: Record<string, string> = {};
-  if (profile.environmentVariables) {
-    profile.environmentVariables.forEach(envVar => {
-      envVars[envVar.name] = envVar.value;
-    });
-  }
+  // Start with profile's environment variables using shared helper
+  const envVars = getProfileEnvironmentVariables(profile);

   // Override with CLI-local cached environment variables
   const localEnvVars = settings.localEnvironmentVariables[profileId] || {};
   Object.assign(envVars, localEnvVars);

   return envVars;
 }

src/utils/serverConnectionErrors.ts (1)

203-210: Clarify that the 4th parameter to exponentialBackoffDelay is NOT a retry limit.

The comment at line 204 helps, but the parameter name maxFailureCount in the imported function might confuse readers. Consider adding a note in the JSDoc header (lines 116-120) explicitly stating retries are unlimited.

src/utils/tmux.ts (2)

139-141: Session name validation may be too restrictive.

The regex /^[a-zA-Z0-9._-]+$/ rejects session names starting with digits, but tmux does allow numeric session names (e.g., 0, 1). However, this is likely intentional for safety. Document the restriction if it's by design.

---

800-825: Environment variable escaping may be insufficient for all shell edge cases.

The escaping at lines 816-820 handles backslashes, double quotes, dollar signs, and backticks. However, it may not handle all edge cases like newlines or null bytes in values. Consider validating values more strictly or using a shell-safe quoting library.

🔧 Consider adding newline validation

+                    // Reject values with newlines as they could break command structure
+                    if (value.includes('\n') || value.includes('\r')) {
+                        logger.warn(`[TMUX] Skipping environment variable with newline: ${key}`);
+                        continue;
+                    }
+
                     // Escape value for shell safety
                     // Must escape: backslashes, double quotes, dollar signs, backticks
                     const escapedValue = value

package.json (1)

69-87: Comment-as-section-headers pattern is unconventional but functional.

Using "// ==== Section ====": "" as visual separators in scripts is creative. Note that these are technically valid npm scripts that do nothing when run. Consider whether this could cause confusion.

📜 Review details

Configuration used: defaults

Review profile: CHILL

Plan: Pro

📥 Commits

Reviewing files that changed from the base of the PR and between 0729517 and e634e97.

📒 Files selected for processing (71)

• .envrc.example
• .gitignore
• CONTRIBUTING.md
• README.md
• bin/happy-dev.mjs
• docs/bug-fix-plan-2025-01-15-athundt.md
• package.json
• scripts/__tests__/ripgrep_launcher.test.ts
• scripts/claude_version_utils.cjs
• scripts/claude_version_utils.test.ts
• scripts/env-wrapper.cjs
• scripts/link-dev.cjs
• scripts/ripgrep_launcher.cjs
• scripts/setup-dev.cjs
• scripts/test-continue-fix.sh
• src/api/api.test.ts
• src/api/api.ts
• src/api/apiMachine.ts
• src/api/apiSession.test.ts
• src/api/apiSession.ts
• src/api/rpc/RpcHandlerManager.ts
• src/api/types.ts
• src/claude/claudeLocal.test.ts
• src/claude/claudeLocal.ts
• src/claude/claudeRemote.ts
• src/claude/claudeRemoteLauncher.ts
• src/claude/loop.ts
• src/claude/runClaude.ts
• src/claude/sdk/utils.ts
• src/claude/session.ts
• src/claude/utils/claudeCheckSession.test.ts
• src/claude/utils/claudeCheckSession.ts
• src/claude/utils/claudeFindLastSession.test.ts
• src/claude/utils/claudeFindLastSession.ts
• src/claude/utils/path.test.ts
• src/claude/utils/permissionHandler.ts
• src/claude/utils/permissionMode.test.ts
• src/claude/utils/permissionMode.ts
• src/codex/codexMcpClient.ts
• src/codex/runCodex.ts
• src/codex/utils/permissionHandler.ts
• src/codex/utils/reasoningProcessor.ts
• src/commands/auth.ts
• src/configuration.ts
• src/daemon/run.ts
• src/daemon/types.ts
• src/gemini/runGemini.ts
• src/gemini/types.ts
• src/gemini/utils/permissionHandler.ts
• src/gemini/utils/reasoningProcessor.ts
• src/index.ts
• src/modules/common/registerCommonHandlers.ts
• src/persistence.ts
• src/ui/auth.ts
• src/ui/logger.ts
• src/utils/BasePermissionHandler.ts
• src/utils/BaseReasoningProcessor.ts
• src/utils/__tests__/runtime.test.ts
• src/utils/__tests__/runtimeIntegration.test.ts
• src/utils/createSessionMetadata.ts
• src/utils/deepEqual.ts
• src/utils/expandEnvVars.test.ts
• src/utils/expandEnvVars.ts
• src/utils/offlineSessionStub.ts
• src/utils/runtime.ts
• src/utils/serverConnectionErrors.test.ts
• src/utils/serverConnectionErrors.ts
• src/utils/setupOfflineReconnection.ts
• src/utils/spawnHappyCLI.ts
• src/utils/tmux.test.ts
• src/utils/tmux.ts

💤 Files with no reviewable changes (1)

• src/utils/deepEqual.ts

🧰 Additional context used

🧬 Code graph analysis (39)

src/utils/createSessionMetadata.ts (2)

src/api/types.ts (1)

• Metadata (311-339)

src/projectPath.ts (1)

• projectPath (6-10)

src/utils/serverConnectionErrors.test.ts (1)

src/utils/serverConnectionErrors.ts (5)

• startOfflineReconnection (140-230)
• connectionState (338-338)
• printOfflineWarning (343-346)
• isNetworkError (243-245)
• NETWORK_ERROR_CODES (237-240)

src/api/api.ts (4)

src/api/types.ts (2)

• Session (180-189)
• Machine (226-234)

src/utils/serverConnectionErrors.ts (1)

• isNetworkError (243-245)

src/configuration.ts (1)

• configuration (90-90)

src/lib.ts (2)

• configuration (13-13)
• logger (12-12)

src/api/types.ts (1)

src/claude/loop.ts (1)

• PermissionMode (12-12)

scripts/setup-dev.cjs (1)

scripts/env-wrapper.cjs (4)

• fs (20-20)
• require (17-17)
• path (18-18)
• os (19-19)

src/ui/auth.ts (2)

src/configuration.ts (1)

• configuration (90-90)

src/api/encryption.ts (1)

• encodeBase64 (9-14)

src/utils/tmux.test.ts (1)

src/utils/tmux.ts (7)

• parseTmuxSessionIdentifier (123-160)
• TmuxSessionIdentifierError (115-120)
• TmuxSessionIdentifier (108-112)
• formatTmuxSessionIdentifier (163-176)
• validateTmuxSessionIdentifier (1008-1018)
• buildTmuxSessionIdentifier (1023-1052)
• TmuxUtilities (356-933)

src/utils/spawnHappyCLI.ts (2)

scripts/ripgrep_launcher.cjs (1)

• runtime (119-119)

src/utils/runtime.ts (1)

• isBun (51-51)

src/claude/utils/claudeFindLastSession.test.ts (1)

src/claude/utils/claudeFindLastSession.ts (1)

• claudeFindLastSession (16-52)

src/api/rpc/RpcHandlerManager.ts (1)

src/api/encryption.ts (2)

• encodeBase64 (9-14)
• encrypt (180-186)

src/index.ts (1)

src/claude/claudeLocal.ts (1)

• claudeCliPath (15-15)

src/utils/expandEnvVars.test.ts (1)

src/utils/expandEnvVars.ts (1)

• expandEnvironmentVariables (29-96)

src/claude/sdk/utils.ts (1)

src/utils/runtime.ts (1)

• isBun (51-51)

src/claude/claudeLocal.test.ts (1)

src/claude/claudeLocal.ts (1)

• claudeLocal (17-329)

src/utils/__tests__/runtime.test.ts (1)

src/utils/runtime.ts (4)

• getRuntime (16-48)
• isNode (52-52)
• isBun (51-51)
• isDeno (53-53)

src/utils/setupOfflineReconnection.ts (2)

src/api/types.ts (2)

• Metadata (311-339)
• AgentState (341-363)

src/utils/serverConnectionErrors.ts (1)

• startOfflineReconnection (140-230)

src/claude/session.ts (1)

src/claude/runClaude.ts (1)

• JsRuntime (32-32)

src/utils/__tests__/runtimeIntegration.test.ts (1)

src/utils/runtime.ts (4)

• getRuntime (16-48)
• isNode (52-52)
• isBun (51-51)
• isDeno (53-53)

src/api/api.test.ts (2)

src/api/api.ts (1)

• ApiClient (13-401)

src/utils/serverConnectionErrors.ts (1)

• connectionState (338-338)

src/daemon/run.ts (4)

src/persistence.ts (2)

• validateProfileForAgent (109-111)
• getProfileEnvironmentVariables (113-160)

src/utils/expandEnvVars.ts (1)

• expandEnvironmentVariables (29-96)

src/utils/tmux.ts (2)

• isTmuxAvailable (945-953)
• getTmuxUtilities (938-943)

src/daemon/types.ts (1)

• TrackedSession (11-22)

src/claude/utils/claudeFindLastSession.ts (2)

src/claude/utils/path.ts (1)

• getProjectPath (4-8)

src/claude/utils/claudeCheckSession.ts (1)

• claudeCheckSession (6-41)

src/configuration.ts (1)

scripts/env-wrapper.cjs (1)

• variant (37-37)

src/claude/utils/claudeCheckSession.test.ts (1)

src/claude/utils/claudeCheckSession.ts (1)

• claudeCheckSession (6-41)

scripts/__tests__/ripgrep_launcher.test.ts (1)

scripts/ripgrep_launcher.cjs (4)

• fs (15-15)
• require (29-29)
• require (91-91)
• path (14-14)

src/api/apiSession.ts (1)

src/ui/logger.ts (1)

• logger (235-235)

src/codex/runCodex.ts (6)

src/api/types.ts (1)

• PermissionMode (16-16)

src/utils/serverConnectionErrors.ts (1)

• connectionState (338-338)

src/utils/createSessionMetadata.ts (1)

• createSessionMetadata (65-89)

src/codex/utils/permissionHandler.ts (1)

• CodexPermissionHandler (22-58)

src/utils/setupOfflineReconnection.ts (1)

• setupOfflineReconnection (77-110)

src/daemon/controlClient.ts (1)

• notifyDaemonSessionStarted (62-70)

src/modules/common/registerCommonHandlers.ts (1)

scripts/ripgrep_launcher.cjs (2)

• result (41-44)
• result (92-95)

src/claude/runClaude.ts (5)

src/api/types.ts (2)

• PermissionMode (16-16)
• Session (180-189)

src/utils/serverConnectionErrors.ts (2)

• connectionState (338-338)
• startOfflineReconnection (140-230)

src/claude/utils/sessionScanner.ts (1)

• createSessionScanner (20-143)

src/claude/claudeLocal.ts (1)

• claudeLocal (17-329)

src/claude/session.ts (1)

• Session (7-185)

src/utils/serverConnectionErrors.ts (1)

src/utils/time.ts (2)

• delay (1-3)
• exponentialBackoffDelay (5-8)

src/claude/utils/path.test.ts (1)

src/claude/utils/path.ts (1)

• getProjectPath (4-8)

scripts/claude_version_utils.test.ts (1)

scripts/claude_version_utils.cjs (5)

• result (62-65)
• result (453-453)
• path (16-16)
• path (106-106)
• fs (17-17)

src/persistence.ts (3)

src/configuration.ts (1)

• configuration (90-90)

src/ui/logger.ts (1)

• logger (235-235)

scripts/env-wrapper.cjs (1)

• env (65-70)

src/claude/claudeLocal.ts (1)

src/claude/utils/claudeFindLastSession.ts (1)

• claudeFindLastSession (16-52)

scripts/claude_version_utils.cjs (2)

scripts/claude_local_launcher.cjs (2)

• path (26-26)
• require (71-71)

scripts/claude_remote_launcher.cjs (1)

• require (14-14)

src/claude/loop.ts (1)

src/claude/runClaude.ts (1)

• JsRuntime (32-32)

src/utils/BasePermissionHandler.ts (1)

src/api/types.ts (1)

• AgentState (341-363)

src/gemini/runGemini.ts (5)

src/utils/serverConnectionErrors.ts (1)

• connectionState (338-338)

src/utils/createSessionMetadata.ts (1)

• createSessionMetadata (65-89)

src/api/apiSession.ts (1)

• ApiSessionClient (14-453)

src/utils/setupOfflineReconnection.ts (1)

• setupOfflineReconnection (77-110)

src/daemon/controlClient.ts (1)

• notifyDaemonSessionStarted (62-70)

src/codex/utils/permissionHandler.ts (1)

src/ui/logger.ts (1)

• logger (235-235)

src/claude/claudeRemote.ts (3)

src/claude/runClaude.ts (1)

• JsRuntime (32-32)

src/claude/sdk/types.ts (1)

• QueryOptions (157-178)

src/claude/utils/systemPrompt.ts (1)

• systemPrompt (30-38)

🪛 Gitleaks (8.30.0)

src/utils/expandEnvVars.test.ts

[high] 226-226: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)

---

[high] 234-234: Detected a Generic API Key, potentially exposing access to various services and sensitive operations.

(generic-api-key)

🪛 markdownlint-cli2 (0.18.1)

CONTRIBUTING.md

268-268: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

docs/bug-fix-plan-2025-01-15-athundt.md

12-12: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

---

25-25: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

---

38-38: Fenced code blocks should have a language specified

(MD040, fenced-code-language)

---

63-63: Emphasis used instead of a heading

(MD036, no-emphasis-as-heading)

⏰ Context from checks skipped due to timeout of 90000ms. You can increase the timeout in your CodeRabbit configuration to a maximum of 15 minutes (900000ms). (2)

• GitHub Check: smoke-test-windows (20)
• GitHub Check: smoke-test-windows (24)

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Duplicate on property in mock object.

The mock object has on: vi.fn() defined twice (lines 149 and 152), which means the first definition is silently overwritten.

🐛 Proposed fix

         mockSpawn.mockReturnValue({
             stdio: [null, null, null, null],
-            on: vi.fn(),
             addListener: vi.fn(),
             removeListener: vi.fn(),
             kill: vi.fn(),
             on: vi.fn(),

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	mockSpawn.mockReturnValue({
	stdio: [null, null, null, null],
	on: vi.fn(),
	addListener: vi.fn(),
	removeListener: vi.fn(),
	kill: vi.fn(),
	on: vi.fn(),
	stdout: { on: vi.fn() },
	stderr: { on: vi.fn() },
	stdin: { on: vi.fn(), end: vi.fn() }
	});
	});
	mockSpawn.mockReturnValue({
	stdio: [null, null, null, null],
	addListener: vi.fn(),
	removeListener: vi.fn(),
	kill: vi.fn(),
	on: vi.fn(),
	stdout: { on: vi.fn() },
	stderr: { on: vi.fn() },
	stdin: { on: vi.fn(), end: vi.fn() }
	});
	});

🤖 Prompt for AI Agents

In @docs/bug-fix-plan-2025-01-15-athundt.md around lines 146 - 157, The mock
returned by mockSpawn.mockReturnValue defines the `on` property twice which
overwrites the first; remove the duplicate `on: vi.fn()` so the process mock has
a single `on: vi.fn()` and keep `addListener`, `removeListener`, `kill`, plus
the stream mocks `stdout: { on: vi.fn() }`, `stderr: { on: vi.fn() }`, and
`stdin: { on: vi.fn(), end: vi.fn() }` to preserve expected event handlers.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Test assertion appears incorrect for non-claude-code paths.

This test uses a @babel/core path which doesn't contain claude-code. Based on the detectSourceFromPath implementation (lines 126-128), the function requires both node_modules and claude-code in the path to return 'npm'. This path should return 'PATH' instead.

🐛 Suggested fix

Either update the expected result:

       it('should detect npm with different scoped packages', () => {
         const result = detectSourceFromPath('C:/Users/test/AppData/Roaming/npm/node_modules/@babel/core/cli.js');
-        expect(result).toBe('npm');
+        expect(result).toBe('PATH');
       });

Or use a claude-code path if testing npm detection is the intent:

-      it('should detect npm with different scoped packages', () => {
-        const result = detectSourceFromPath('C:/Users/test/AppData/Roaming/npm/node_modules/@babel/core/cli.js');
+      it('should detect npm on Windows with AppData path', () => {
+        const result = detectSourceFromPath('C:/Users/test/AppData/Roaming/npm/node_modules/@anthropic-ai/claude-code/cli.js');
         expect(result).toBe('npm');
       });

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	it('should detect npm with different scoped packages', () => {
	const result = detectSourceFromPath('C:/Users/test/AppData/Roaming/npm/node_modules/@babel/core/cli.js');
	expect(result).toBe('npm');
	});
	it('should detect npm with different scoped packages', () => {
	const result = detectSourceFromPath('C:/Users/test/AppData/Roaming/npm/node_modules/@babel/core/cli.js');
	expect(result).toBe('PATH');
	});

🤖 Prompt for AI Agents

In @scripts/claude_version_utils.test.ts around lines 35 - 38, The test for
detectSourceFromPath is asserting 'npm' for a path that lacks "claude-code" and
therefore should return 'PATH'; either change the expected value to 'PATH' for
the current test input (the path containing "@babel/core") or alter the test
path to include "claude-code" under node_modules (so detectSourceFromPath will
legitimately return 'npm'); update the assertion correspondingly and keep the
test name accurate to reflect which scenario is being validated.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Missing validation for required command argument.

If a user runs node scripts/env-wrapper.js stable without a command, command will be undefined. This gets stringified to "undefined" when passed to spawn(), causing confusing behavior.

🔧 Suggested fix

 const variant = process.argv[2];
 const command = process.argv[3];
 const args = process.argv.slice(4);

-if (!variant || !VARIANTS[variant]) {
+if (!variant || !VARIANTS[variant] || !command) {
   console.error('Usage: node scripts/env-wrapper.js <stable|dev> <command> [...args]');

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	const variant = process.argv[2];
	const command = process.argv[3];
	const args = process.argv.slice(4);
	if (!variant || !VARIANTS[variant]) {
	console.error('Usage: node scripts/env-wrapper.js <stable|dev> <command> [...args]');
	console.error('');
	console.error('Variants:');
	console.error(' stable - Production-ready version (data: ~/.happy/)');
	console.error(' dev - Development version (data: ~/.happy-dev/)');
	console.error('');
	console.error('Examples:');
	console.error(' node scripts/env-wrapper.js stable daemon start');
	console.error(' node scripts/env-wrapper.js dev auth login');
	process.exit(1);
	}
	const variant = process.argv[2];
	const command = process.argv[3];
	const args = process.argv.slice(4);
	if (!variant || !VARIANTS[variant] || !command) {
	console.error('Usage: node scripts/env-wrapper.js <stable|dev> <command> [...args]');
	console.error('');
	console.error('Variants:');
	console.error(' stable - Production-ready version (data: ~/.happy/)');
	console.error(' dev - Development version (data: ~/.happy-dev/)');
	console.error('');
	console.error('Examples:');
	console.error(' node scripts/env-wrapper.js stable daemon start');
	console.error(' node scripts/env-wrapper.js dev auth login');
	process.exit(1);
	}

[coderabbitai]

⚠️ Potential issue | 🟠 Major

stdio: 'ignore' prevents capturing command output.

When stdio is set to 'ignore', execFileSync cannot capture the command output. The result variable will be an empty Buffer or undefined, causing the path detection to always fail and fall through to the common paths fallback.

🐛 Proposed fix

         try {
             const result = execFileSync(cmd, args, {
                 encoding: 'utf8',
-                stdio: 'ignore'
+                stdio: ['pipe', 'pipe', 'ignore']
             });

🤖 Prompt for AI Agents

In @scripts/ripgrep_launcher.cjs around lines 39 - 55, The loop that tries each
command uses execFileSync in ripgrep_launcher.cjs but passes stdio: 'ignore', so
execFileSync cannot capture stdout into the result; change the execFileSync call
in that loop (the one creating const result = execFileSync(cmd, args, {...})) to
allow capturing output by removing stdio: 'ignore' or setting stdio: 'pipe'
(keep encoding: 'utf8'), then use result.trim().split('\n') as before to extract
the first path; keep the existing try/catch behavior so failed commands still
fall through.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Add existence check before reading project directory.

The script will fail with an unhelpful error if the project directory doesn't exist (e.g., for new users or fresh installs). Consider checking if the directory exists before attempting to read it.

🐛 Proposed fix

 const projectDir = join(claudeConfigDir, 'projects', projectId);
 
+const { existsSync } = require('fs');
+if (!existsSync(projectDir)) {
+    console.log('No project directory found at:', projectDir);
+    console.log('This is expected for fresh installs with no prior sessions.');
+    process.exit(0);
+}
+
 const uuidPattern = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{4}-[0-9a-f]{12}\$/i;

🤖 Prompt for AI Agents

In @scripts/test-continue-fix.sh around lines 27 - 66, The script currently
calls readdirSync(projectDir) without verifying projectDir exists; add an
existence check (e.g., using existsSync or try/catch around statSync)
immediately before the readdirSync call and if the directory is missing log a
clear error and exit non‑zero; update the block that builds files (look for the
readdirSync(projectDir) line and the projectDir variable) to early-return/exit
with a helpful message when the directory does not exist so the subsequent file
reads do not throw an unhelpful exception.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

Variable shadowing: hasResumeFlag redeclared inside block.

Line 175 declares const hasResumeFlag which shadows the outer variable declared at line 37. This could lead to confusion and bugs if the outer variable's value is expected here.

Suggested fix

             if (!opts.hookSettingsPath) {
                 // Offline mode: We control session ID
-                const hasResumeFlag = opts.claudeArgs?.includes('--resume') || opts.claudeArgs?.includes('-r');
+                const hasResumeFlagInArgs = opts.claudeArgs?.includes('--resume') || opts.claudeArgs?.includes('-r');
                 if (startFrom) {
                     // Resume existing session (Claude preserves the session ID)
                     args.push('--resume', startFrom)
-                } else if (!hasResumeFlag && newSessionId) {
+                } else if (!hasResumeFlagInArgs && newSessionId) {
                     // New session with our generated UUID
                     args.push('--session-id', newSessionId)
                 }

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	if (!opts.hookSettingsPath) {
	// Offline mode: We control session ID
	const hasResumeFlag = opts.claudeArgs?.includes('--resume') || opts.claudeArgs?.includes('-r');
	if (startFrom) {
	// Resume existing session (Claude preserves the session ID)
	args.push('--resume', startFrom)
	} else if (!hasResumeFlag && newSessionId) {
	// New session with our generated UUID
	args.push('--session-id', newSessionId)
	}
	} else {
	// Normal mode with hook: Add --resume if we found a session to resume
	// (Flags have been extracted, so we re-add --resume with the session ID we found)
	if (startFrom) {
	args.push('--resume', startFrom);
	}
	}
	if (!opts.hookSettingsPath) {
	// Offline mode: We control session ID
	const hasResumeFlagInArgs = opts.claudeArgs?.includes('--resume') || opts.claudeArgs?.includes('-r');
	if (startFrom) {
	// Resume existing session (Claude preserves the session ID)
	args.push('--resume', startFrom)
	} else if (!hasResumeFlagInArgs && newSessionId) {
	// New session with our generated UUID
	args.push('--session-id', newSessionId)
	}
	} else {
	// Normal mode with hook: Add --resume if we found a session to resume
	// (Flags have been extracted, so we re-add --resume with the session ID we found)
	if (startFrom) {
	args.push('--resume', startFrom);
	}
	}

🤖 Prompt for AI Agents

In @src/claude/claudeLocal.ts around lines 173 - 189, The code inside the
opts.hookSettingsPath false branch redeclares hasResumeFlag, shadowing the outer
variable and risking confusion; remove the inner declaration and use the
existing hasResumeFlag (or rename consistently) when checking for resume flags
in the block that builds args (the branch that pushes '--session-id' or
'--resume'), i.e., replace `const hasResumeFlag = ...` with a reference to the
outer hasResumeFlag so the check `else if (!hasResumeFlag && newSessionId)` uses
the intended variable.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

AbortController signal is never triggered in offline mode.

The AbortController created on line 137 is passed to claudeLocal but never has its abort() method called. If the user wants to interrupt the offline session (e.g., via Ctrl+C), the signal won't be triggered. Consider wiring up signal handlers or using the same abort pattern as the main flow.

Suggested improvement

+        const offlineAbortController = new AbortController();
+
+        // Handle Ctrl+C in offline mode
+        const offlineCleanup = () => {
+            offlineAbortController.abort();
+            reconnection.cancel();
+            stopCaffeinate();
+        };
+        process.on('SIGINT', offlineCleanup);
+        process.on('SIGTERM', offlineCleanup);
+
         try {
             await claudeLocal({
                 path: workingDirectory,
                 sessionId: null,
                 onSessionFound: (id) => { offlineSessionId = id; },
                 onThinkingChange: () => {},
-                abort: new AbortController().signal,
+                abort: offlineAbortController.signal,
                 claudeEnvVars: options.claudeEnvVars,
                 claudeArgs: options.claudeArgs,
                 mcpServers: {},
                 allowedTools: []
             });
         } finally {
+            process.off('SIGINT', offlineCleanup);
+            process.off('SIGTERM', offlineCleanup);
             reconnection.cancel();
             stopCaffeinate();
         }

📝 Committable suggestion

‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.

Suggested change

	try {
	await claudeLocal({
	path: workingDirectory,
	sessionId: null,
	onSessionFound: (id) => { offlineSessionId = id; },
	onThinkingChange: () => {},
	abort: new AbortController().signal,
	claudeEnvVars: options.claudeEnvVars,
	claudeArgs: options.claudeArgs,
	mcpServers: {},
	allowedTools: []
	});
	} finally {
	reconnection.cancel();
	stopCaffeinate();
	}
	process.exit(0);
	}
	const offlineAbortController = new AbortController();
	// Handle Ctrl+C in offline mode
	const offlineCleanup = () => {
	offlineAbortController.abort();
	reconnection.cancel();
	stopCaffeinate();
	};
	process.on('SIGINT', offlineCleanup);
	process.on('SIGTERM', offlineCleanup);
	try {
	await claudeLocal({
	path: workingDirectory,
	sessionId: null,
	onSessionFound: (id) => { offlineSessionId = id; },
	onThinkingChange: () => {},
	abort: offlineAbortController.signal,
	claudeEnvVars: options.claudeEnvVars,
	claudeArgs: options.claudeArgs,
	mcpServers: {},
	allowedTools: []
	});
	} finally {
	process.off('SIGINT', offlineCleanup);
	process.off('SIGTERM', offlineCleanup);
	reconnection.cancel();
	stopCaffeinate();
	}
	process.exit(0);

🤖 Prompt for AI Agents

In @src/claude/runClaude.ts around lines 131 - 148, The AbortController created
inline when calling claudeLocal is never aborted; create a named AbortController
(e.g., const abortController = new AbortController()) before the try, pass
abortController.signal to claudeLocal instead of new AbortController().signal,
and wire process signal handlers (process.on('SIGINT') and
process.on('SIGTERM')) to call abortController.abort() and perform the same
cleanup (reconnection.cancel() and stopCaffeinate()) so the offline session can
be interrupted; keep the existing finally block to ensure cleanup and remove any
unused inline AbortController.

[coderabbitai]

⚠️ Potential issue | 🟡 Minor

🧩 Analysis chain

🏁 Script executed:

rg -n 'tmp\.' src/daemon/run.ts

Repository: leeroybrun/happy-cli

Length of output: 46

---

Remove unused tmp import.

The tmp module imported on line 3 is not used anywhere in this file and should be removed.

🤖 Prompt for AI Agents

In @src/daemon/run.ts at line 3, Remove the unused import of the tmp module from
the top of the file: delete the line importing "tmp" (the import statement
"import * as tmp from 'tmp';") in src/daemon/run.ts so the unused symbol is not
retained.

[coderabbitai]

⚠️ Potential issue | 🔴 Critical

🧩 Analysis chain

🌐 Web query:

TMUX environment variable format tmux server socket pid

💡 Result:

Short answer: the TMUX environment variable holds the server socket path up to the first comma; everything after the first comma is internal metadata used by tmux. To get the server PID and socket explicitly use tmux formats, e.g.:

• socket path: tmux display -p '#{socket_path}'. [1][2]
• server PID: tmux display -p '#{pid}'. [1][2]

Notes: tmux also sets TMUX_PANE for the current pane id (e.g. %1). [1]

Sources:
[1] tmux Wiki — Advanced Use (Special environment variables).
[2] tmux Wiki — Formats / manpage (format variables #{socket_path} and #{pid}).

---

TMUX environment variable parsing logic is fundamentally incorrect.

The TMUX environment variable format is socket_path,server_pid,pane_id, where parts[1] is the server PID (a number like "12345"), not a path. Lines 382–383 incorrectly attempt to split parts[1] by / and extract the session name from it. This fails because:

1. parts[1] is a numeric PID, not a filesystem path
2. The session name is not stored in the TMUX variable at all
3. The code returns the server PID as the session name, which is incorrect

To obtain the actual session name and window, use tmux commands like tmux display-message -p '#{session_name}' or the TMUX_PANE environment variable (format: %pane_id), not the TMUX variable itself.

🤖 Prompt for AI Agents

In @src/utils/tmux.ts around lines 376 - 410, The TMUX parsing code incorrectly
treats parts[1] as a path and extracts a session/window from it; instead treat
TMUX as "socket_path,server_pid,pane_id" (so socket_path = parts[0], server_pid
= parts[1], pane = parts[2]) and do not derive session/window from parts[1]. Fix
the logic in the TMUX parsing function (the block using tmuxEnv, parts,
socketPath, sessionAndWindow, pane) to: 1) stop splitting parts[1] by '/' and
stop using it as session; 2) set socket_path = parts[0] and pane = parts[2]; and
3) obtain real session and window by querying tmux (e.g., use TMUX_PANE
environment variable if available or run tmux display-message -p
'#{session_name}' and '#{window_index}' via a safe exec wrapper) and include
fallback handling/logging on failure before returning { session, window, pane,
socket_path } or null.

[coderabbitai]

⚠️ Potential issue | 🟠 Major

🧩 Analysis chain

🏁 Script executed:

# First, let's look at the file structure and find the WIN_OPS and COMMANDS_SUPPORTING_TARGET definitions
cd /tmp && git -C /repo log --oneline -1 2>/dev/null || echo "Not a git repo"
# Get file info
wc -l /repo/src/utils/tmux.ts

Repository: leeroybrun/happy-cli

Length of output: 150

---

🏁 Script executed:

# Check for WIN_OPS definition
rg "WIN_OPS" /repo/src/utils/tmux.ts -A 20 -B 2

Repository: leeroybrun/happy-cli

Length of output: 127

---

🏁 Script executed:

# Check for COMMANDS_SUPPORTING_TARGET definition
rg "COMMANDS_SUPPORTING_TARGET" /repo/src/utils/tmux.ts -A 10 -B 2

Repository: leeroybrun/happy-cli

Length of output: 127

---

🏁 Script executed:

# Search for commands with -t in their definition (from the reviewer's verification request)
rg "'[^']+': '[^']*-t" /repo/src/utils/tmux.ts | head -30

Repository: leeroybrun/happy-cli

Length of output: 127

---

🏁 Script executed:

# Look at the exact lines in question (447-459) with more context
sed -n '440,465p' /repo/src/utils/tmux.ts

Repository: leeroybrun/happy-cli

Length of output: 130

---

🏁 Script executed:

# List files to understand repo structure
git ls-files | head -20

Repository: leeroybrun/happy-cli

Length of output: 411

---

🏁 Script executed:

# Find tmux.ts file
fd "tmux.ts" .

Repository: leeroybrun/happy-cli

Length of output: 83

---

🏁 Script executed:

# If file doesn't exist, check all TypeScript files in utils
fd "\.ts$" . | grep -i tmux

Repository: leeroybrun/happy-cli

Length of output: 108

---

🏁 Script executed:

# Get file size
wc -l ./src/utils/tmux.ts

Repository: leeroybrun/happy-cli

Length of output: 88

---

🏁 Script executed:

# Look at lines 440-470 to understand context
sed -n '440,470p' ./src/utils/tmux.ts

Repository: leeroybrun/happy-cli

Length of output: 1101

---

🏁 Script executed:

# Search for WIN_OPS definition
rg "WIN_OPS" ./src/utils/tmux.ts -A 25 -B 2

Repository: leeroybrun/happy-cli

Length of output: 2048

---

🏁 Script executed:

# Search for COMMANDS_SUPPORTING_TARGET definition
rg "COMMANDS_SUPPORTING_TARGET" ./src/utils/tmux.ts -A 15 -B 2

Repository: leeroybrun/happy-cli

Length of output: 1459

---

Remove duplicate -t flag logic for commands with pre-included target specification.

Commands like select-window, select-pane, and others in WIN_OPS already include -t in their value (e.g., 'select-window': 'select-window -t'). The code at lines 451-455 then appends another -t flag unconditionally for any command in COMMANDS_SUPPORTING_TARGET, resulting in duplicate flags:

['tmux', 'select-window', '-t', '-t', targetValue]

The code should either:

1. Strip -t from WIN_OPS values and apply it consistently in executeTmuxCommand, or
2. Check if the command already ends with -t before appending it again.

🤖 Prompt for AI Agents

In @src/utils/tmux.ts around lines 447 - 459, The code in executeTmuxCommand
builds fullCmd and unconditionally appends '-t' when COMMANDS_SUPPORTING_TARGET
matches, which causes duplicate '-t' for commands whose templates in WIN_OPS
already include '-t'. Fix it by detecting whether the assembled cmd already
contains a '-t' flag (e.g., check cmd.includes('-t') or inspect the last token
of cmd) before pushing '-t' and the target; reference
COMMANDS_SUPPORTING_TARGET, WIN_OPS, executeTmuxCommand, baseCmd and fullCmd and
ensure you only append '-t' and target when no '-t' is already present.

[gemini-code-assist]

Summary of Changes

Hello @leeroybrun, I'm Gemini Code Assist¹! I'm currently reviewing this pull request and will post my feedback shortly. In the meantime, here's a summary to help you and other reviewers quickly get up to speed!

This pull request significantly enhances the Happy CLI's stability, developer experience, and multi-agent capabilities. Key improvements include a robust system for managing development and stable environments, resilient handling of server connectivity issues with an offline mode and automatic reconnection, and a unified approach to configuring AI backend profiles and environment variables. The changes also refine Claude session management, abstract common agent logic, and introduce seamless tmux integration for daemon-spawned sessions, collectively making the CLI more reliable and user-friendly.

Highlights

• Enhanced Developer Experience & Environment Management: Introduced new scripts (.envrc.example, scripts/env-wrapper.cjs, scripts/link-dev.cjs, scripts/setup-dev.cjs) and updated package.json to provide a robust development environment. This includes dedicated stable and dev variants for isolated data, direnv integration for automatic environment switching, and simplified global linking of the happy-dev command. A comprehensive CONTRIBUTING.md guide was added to detail setup, workflows, and troubleshooting.
• Improved Server Connection Robustness & Offline Mode: Implemented a new serverConnectionErrors utility (src/utils/serverConnectionErrors.ts) with exponential backoff for graceful handling of server disconnections. The API client (src/api/api.ts) now uses this to prevent crashes when the Happy server is unreachable, falling back to a local offline mode with automatic reconnection attempts. This ensures continuous operation even during network interruptions.
• Unified AI Backend Profile & Environment Variable Management: Refactored src/persistence.ts to introduce a Zod-validated AIBackendProfileSchema that mirrors the Happy mobile/web app. This enables consistent management of AI backend configurations (Anthropic, OpenAI, Azure, TogetherAI) and environment variables across GUI and CLI. Daemon session spawning (src/daemon/run.ts) now dynamically loads and expands these profile-specific environment variables, including tmux session settings.
• Refined Claude Session Handling & --continue Fix: The claudeLocal module (src/claude/claudeLocal.ts) was significantly refactored to correctly handle --continue, --resume, and --session-id flags, converting --continue to --resume with the last valid session ID to resolve conflicts with Claude Code's --session-id flag. New utilities (claudeFindLastSession, claudeCheckSession) and tests were added to support this, improving session continuity and robustness.
• Cross-Agent Code Consolidation & Abstraction: Introduced abstract base classes (BasePermissionHandler, BaseReasoningProcessor) in src/utils/ to consolidate common logic for permission and reasoning processing across Codex and Gemini agents. This reduces code duplication and improves maintainability. A new createSessionMetadata utility (src/utils/createSessionMetadata.ts) centralizes session metadata creation for all backends.
• Tmux Integration for Daemon-Spawned Sessions: Added comprehensive tmux utilities (src/utils/tmux.ts) and integrated them into the daemon's session spawning logic (src/daemon/run.ts). This allows daemon-initiated sessions to be spawned directly into specified tmux sessions, enhancing developer workflow for persistent and isolated environments.

Using Gemini Code Assist

The full guide for Gemini Code Assist can be found on our documentation page, here are some quick tips.

Invoking Gemini

You can request assistance from Gemini at any point by creating a comment using either /gemini <command> or @gemini-code-assist <command>. Below is a summary of the supported commands on the current page.

Feature	Command	Description
Code Review	/gemini review	Performs a code review for the current pull request in its current state.
Pull Request Summary	/gemini summary	Provides a summary of the current pull request in its current state.
Comment	@gemini-code-assist	Responds in comments when explicitly tagged, both in pull request comments and review comments.
Help	/gemini help	Displays a list of available commands.

Customization

To customize Gemini Code Assist for GitHub experience, repository maintainers can create a configuration file and/or provide a custom code review style guide (such as PEP-8 for Python) by creating and adding files to a .gemini/ folder in the base of the repository. Detailed instructions can be found here.

Limitations & Feedback

Gemini Code Assist may make mistakes. Please leave feedback on any instances where its feedback is incorrect or counter productive. You can react with 👍 and 👎 on @gemini-code-assist comments. If you're interested in giving your feedback about your experience with Gemini Code Assist for Github and other Google products, sign up here.

You can also get AI-powered code generation, chat, as well as code reviews directly in the IDE at no cost with the Gemini Code Assist IDE Extension.

Footnotes

1. Review the Privacy Notices, Generative AI Prohibited Use Policy, Terms of Service, and learn how to configure Gemini Code Assist in GitHub here. Gemini can make mistakes, so double check it and use code with caution. ↩

[gemini-code-assist]

Code Review

This is a large pull request that introduces several major features and bug fixes. The changes for development/stable variants, offline mode with reconnection, and profile-based configurations are significant improvements. The bug fix for the --continue flag conflict in Claude sessions is well-implemented. The codebase is also improved through refactoring, such as creating base classes for permission and reasoning handlers.

I have two main points of feedback:

1. A critical bug in the new tmux integration where the TMUX environment variable is parsed incorrectly, which will lead to incorrect session targeting.
2. A minor code duplication issue in the new happy-dev wrapper script.

Overall, the quality of the changes is high, with good documentation and testing for most of the new features.

[gemini-code-assist]

The implementation of detectTmuxEnvironment incorrectly parses the TMUX environment variable. According to the tmux man page and common usage, the format is socket-path,pid,session-id.

The current code treats the second component (pid) as the session name and the third component (session-id) as the pane index. This is incorrect and will lead to wrong session/pane targeting when running inside a tmux session.

To fix this, you should parse the components according to the correct format. The session ID is the third component. To get the session name, window index, and pane index, you would typically need to execute a command like tmux display-message -p '#S,#{window_index},#{pane_index}'.

[gemini-code-assist]

The environment variables HAPPY_HOME_DIR and HAPPY_VARIANT are set in both the if and else blocks. This duplication can be avoided by setting them once before the conditional block, which would make the code cleaner and easier to maintain.

  process.env.HAPPY_HOME_DIR = join(homedir(), '.happy-dev');
  process.env.HAPPY_VARIANT = 'dev';

  try {
    execFileSync(
      process.execPath,
      ['--no-warnings', '--no-deprecation', scriptPath, ...process.argv.slice(2)],
      {
        stdio: 'inherit',
        env: process.env
      }
    );
  } catch (error) {
    // Exit with the same code as the subprocess
    process.exit(error.status || 1);
  }
} else {
  // Already have the flags, import normally
  await import('../dist/index.mjs');