Analyze a log file
Turn an Unreal Engine log into prioritized findings, crash triage, and statistics with analyze_logs.
When something goes wrong in your project, the log file usually holds the answer — but engine logs are long and noisy. This guide runs a full analysis with analyze_logs and shows you what to do with the results.
Before you start
- Your AI client is connected.
- You have a plain-text log file on disk — for example
Saved/Logs/MyProject.log(live editor), a crash log, or a CI build log.
This is a paid tool — a fixed credit cost per session, billed only when analysis runs; empty logs and logs without Error or Fatal entries are free. Current price: pricing page.
Pick the right log
- Live-editor problems:
Saved/Logs/<Project>.logfrom the current or last session. - Crashes: the log written before the crash. After a crash the editor process is gone, so use the file on disk.
- CI builds: the build step's log file.
Plain text only — crash dumps (.dmp) are rejected; analyze the text log written next to them instead.
Start the analysis
Ask your client:
Analyze the log file at Saved/Logs/MyProject.logThe tool opens a session, then analyzes the uploaded copy so log bytes never flow through your chat.
Known limitation — file upload to object storage is pending deployment in production. Until it goes live, the paste path (inline log text) works; your client falls back to it automatically.
Read the report
Work through the findings top-down — they're prioritized by severity and frequency. Each finding shows evidence excerpts so you can jump to the matching lines yourself. If the log contains a crash, check the crash triage block first: it names the suspect Blueprint and a root-cause summary.
Not yet available — a deeper Blueprint review (analyze_blueprint) is planned. Today: after crash triage names the Blueprint, ask your client to inspect it with search_docs_code on the failing subsystem.
Follow up
- Ask your client to search the docs for the top finding — see Search Unreal Engine documentation.
- If the fix involves cleanup, continue with Audit your project's assets or Generate an editor script.
Verify
- The report appeared in your chat with a summary, findings, and statistics.
- The portal's Usage page shows the call, and your balance dropped by 5 (or nothing, for a free outcome).
Next steps
analyze_logsreference — inputs, outputs, and limits- Fix a problem — error messages and remedies
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