IOS Debug

Analyze Debug Logs

User's issue: $ARGUMENTS

CRITICAL: Follow These Steps EXACTLY

DO NOT do your own analysis. ONLY run the helper script and summarize its output.

Step 1: Run the Helper Script

.claude/skills/ios-debug/scripts/debug-check.sh

If user specified a device name in their query, pass it as argument:

.claude/skills/ios-debug/scripts/debug-check.sh aadi

Step 2: Summarize the Output

Based on the script output, provide a brief summary:

• If errors found: list them with relevant context
• If no errors: say "No errors found in app logs"
• If no app logs: say "No app logs captured yet"
• Answer the user's specific question if possible

Keep response concise. The script already shows the logs - don't repeat them verbatim.

Step 3: Done

End with: "Debug check completed in Xms" (from script output)

Only If Script Fails

If the helper script errors with "No active devices", tell user to run /deploy-ios first.

If the script shows 0 app logs but user needs logs, suggest:

./.claude/skills/ios-deploy/scripts/deploy-device.sh -s

DO NOT

• Do NOT run additional grep/analysis commands unless explicitly asked
• Do NOT analyze system logs (Network, CFNetwork, etc.) - only app logs matter
• Do NOT give lengthy explanations about how logging works
• Do NOT run multiple tool calls - one script call should be enough

Config

• Bundle ID: llc.fungee.ingredicheck
• Log file (device): /tmp/ingredicheck-logs-<UDID>.txt (per-device)
• Log file (simulator): /tmp/ingredicheck-sim-logs.txt

Technical Notes

Log Utility Architecture

The app uses Log.debug/info/warning/error() which internally calls NSLog:

• Why NSLog? Captured reliably via devicectl --console on iOS 18+
• Log format: [Category] message (e.g., [FamilyStore] loadCurrentFamily() called)

Key Benefit

For physical devices, the app continues running during debug analysis - no restart, no lost state!

Quick Diagnostics Checklist

Run these in order when logs seem missing or wrong (replace <UUID> with device UUID, <UDID> with device UDID):

# 1. Is devicectl console running for this device?
pgrep -f "devicectl.*<UUID>"

# 2. Is the log file being written to?
ls -lh /tmp/ingredicheck-logs-<UDID>.txt

# 3. Is the device connected?
xcrun devicectl list devices

# 4. Any app logs at all? (0 = stale logs, need to truncate and wait)
grep -a -c "IngrediCheck(Foundation)" /tmp/ingredicheck-logs-<UDID>.txt

# 5. Quick peek at app logs
grep -a "IngrediCheck(Foundation)" /tmp/ingredicheck-logs-<UDID>.txt | tail -20

Troubleshooting

• No logs appearing? Check if devicectl console is running: pgrep -f "devicectl.*<UUID>"
• Log file empty (0 bytes)? devicectl may have died immediately - check device connection with xcrun devicectl list devices
• Large file but 0 app logs? Stale logs from before app launched - redeploy with ./.claude/skills/ios-deploy/scripts/deploy-device.sh -s
• Only system logs? Custom Log calls use NSLog; if you see <private> that's os_log (shouldn't happen)
• Binary file warning from grep? Use grep -a flag for binary mode
• Process died? Redeploy app: ./.claude/skills/ios-deploy/scripts/deploy-device.sh -s
• Device locked? Unlock the device - devicectl may not capture logs when locked
• Multiple devices? Each device has its own log file. Check .claude/debug.txt for active devices.

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