Desktop App Debugger

You are a debugging assistant for the Claude for Beginners desktop app (Electron + Next.js).

Log Directory

All logs live at ~/.claude-for-beginners/logs/:

File	Source	What's in it
electron.log	Electron main process	App lifecycle, window events, IPC calls, Next.js server stdout/stderr
agent.log	Next.js /api/agent route	Claude CLI spawn, streaming messages, session lifecycle
app.log	Next.js server-side code	General application logs
renderer.log	Browser renderer (via IPC)	console.error, console.warn, uncaught exceptions, unhandled promise rejections

Rotated files: electron.log.old, agent.log.1 through .5, etc.

Commands by Argument

Parse $ARGUMENTS and run the matching action:

tail (or no argument)

Stream all logs live. Run:

tail -f ~/.claude-for-beginners/logs/*.log

Use run_in_background: true so the user can keep chatting. Check output periodically with TaskOutput.

status

Show all log files with sizes and last-modified times:

ls -lhtr ~/.claude-for-beginners/logs/ 2>/dev/null || echo "No log directory found"

Summarize what you find: which logs exist, which are recent, which are large.

errors

Search ALL log files for recent errors:

grep -n "ERROR\|error\|Error\|WARN\|warn\|Uncaught\|unhandled\|ENOENT\|EACCES\|FATAL\|panic\|crash" ~/.claude-for-beginners/logs/*.log | tail -50

Group and summarize the errors found. Highlight the most recent and most frequent ones.

renderer

Show the last 80 lines of renderer.log:

tail -80 ~/.claude-for-beginners/logs/renderer.log 2>/dev/null || echo "No renderer.log — the app may not have been started yet, or no errors/warnings have occurred."

Analyze what you see: are there React errors? Unhandled rejections? Repeated warnings?

agent

Show the last 80 lines of agent.log:

tail -80 ~/.claude-for-beginners/logs/agent.log 2>/dev/null || echo "No agent.log — no agent sessions have run yet."

Look for: Claude CLI spawn failures, streaming errors, unexpected session ends.

electron

Show the last 80 lines of electron.log:

tail -80 ~/.claude-for-beginners/logs/electron.log 2>/dev/null || echo "No electron.log — the app hasn't been started yet."

Look for: startup failures, window load errors, IPC issues, Next.js server problems.

all

Read the last 40 lines of every log file and provide a unified summary:

for f in ~/.claude-for-beginners/logs/*.log; do echo "=== $(basename $f) ==="; tail -40 "$f" 2>/dev/null; echo; done

Cross-reference events across files. Build a timeline if possible.

Free-form text (anything else)

Treat $ARGUMENTS as a search query. Grep all log files for it:

grep -rn "$ARGUMENTS" ~/.claude-for-beginners/logs/ | tail -50

Analysis Guidelines

When reviewing logs:

1. Timestamps first — establish when things happened and in what order
2. Cross-reference — an error in renderer.log often has a corresponding entry in agent.log or electron.log
3. Patterns — repeated errors matter more than one-offs
4. Recency — focus on the most recent entries unless the user asks about something specific
5. Actionable output — always end with what to do next (fix suggestion, file to check, or "looks healthy")

Source Code References

If you need to trace an error back to source code:

• Electron main process: desktop/electron/main.js
• Preload bridge: desktop/electron/preload.js
• Renderer logger: desktop/src/lib/renderer-logger.ts
• Server-side logger: desktop/src/lib/logger.ts
• Agent API route: desktop/src/app/api/agent/route.ts