Attach error stack and log tail to Slack on crash#6
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When ClaudeX catches an error (e.g. "Claude Code process exited with
code 1"), the error handler now posts two additional file attachments
to the same Slack thread:
- error-stack.txt — the full JavaScript Error stack trace
- service-logs.txt — the last 10 000 lines of the active service log
This makes crashes self-diagnosing directly in Slack without requiring
manual log inspection.
New file: src/util/log-reader.ts
- getLatestLogFile() — finds the newest service_*.log in logs/
- readLastNLines() — reads the last N lines from a file
Modified: src/slack/files.ts
- uploadContentAsFile() — writes a string to a tmp file and uploads
it to Slack, then cleans up the tmp dir
Modified: src/slack/events.ts
- Error handler now calls both helpers after posting the error text
Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
Sets up Vitest (first test infrastructure in the repo) and adds 19 tests covering the two new utilities introduced in the previous commit: src/util/log-reader.test.ts (12 tests) getLatestLogFile: - returns null for empty / missing logs directory - ignores files that don't match service_*.log - returns the single log file when only one exists - returns the most recently modified file among multiple candidates - handles three files and picks the newest readLastNLines: - returns error string for non-existent file - returns full content when file has fewer lines than requested - returns exactly the last N lines - handles empty file, n=1, n=0, and trailing-newline edge cases src/slack/files.test.ts (7 tests) uploadContentAsFile: - calls filesUploadV2 with the correct channel, thread, and filename - verifies the temp file is cleaned up after a successful upload - verifies the temp file is cleaned up even when filesUploadV2 throws - uploads empty string without error - uploads a 10 000-line string (simulating a log tail) without error - preserves the exact filename argument Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>
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Summary
When ClaudeX catches an unhandled error (e.g. "Claude Code process exited with code 1"), the thread currently only receives a terse error text message. This PR makes crashes self-diagnosing by attaching two files to the same Slack thread immediately after that message:
error-stack.txt— the full JavaScriptError.stacktrace (or the stringified error if it isn't anErrorinstance)service-logs.txt— the last 10 000 lines of the activelogs/service_*.logfileChanges
src/util/log-reader.ts(new)getLatestLogFile()— locates the newestservice_*.log;readLastNLines()— reads the tail of a filesrc/slack/files.tsuploadContentAsFile()— writes a string to a UUID-named temp file, uploads viafilesUploadV2, then cleans upsrc/slack/events.tstry/catchso a failure to upload diagnostics never hides the original errorTest plan
error-stack.txtappears in the Slack threadservice-logs.txtis also attached and contains recent log lines:x: Sorry, something went wrong: …message still appears first🤖 Generated with Claude Code