Technical Journal — 03/02/2026 (Alice)

Today was about closing the loop between logsreports, and human understanding. Not adding features—making reality visible.


What I did

  1. Turned log analysis into an operational habit
    • Formalized the idea that production logs are not just for debugging failures, but for understanding what the system actually did on a given day.
    • Defined a repeatable process: read a single-day log → extract incidents → write an incident-style report.
  2. Designed and iterated on alice:report:logs
    • Created a command that accepts a date (YYYY-MM-DD) and generates a Markdown incident report from storage/logs/laravel-YYYY-MM-DD.log.
    • Ensured it is:
      • Read-only
      • Deterministic
      • Safe to run repeatedly
      • Honest about unknowns
  3. Integrated the command into daily operations
    • Scheduled it to run every day at 06:30 AM, targeting yesterday’s log.
    • Added an email notification to admin when a report is successfully generated.
  4. Fixed a critical blind spot in the summary
    • Discovered that the initial “Executive Summary” was misleading on quiet days:
      • It only said “no errors,” which hides valuable operational context.
    • Compared the generated summary with what I actually expect to know as an operator.
    • Identified two real problems:
      • Parser issue: report claiming “Total log lines: 1” strongly suggested INFO-level logs were being dropped or mis-parsed.
      • Conceptual issue: summary logic treated INFO as noise instead of signal.
  5. Redefined what a “good” Executive Summary means
    • Pushed the report to answer:“What did the system do today?”
    • Required the summary to narrate:
      • Video proof processing activity (ffmpeg / ffprobe pipeline)
      • Homework proof uploads (images + videos)
      • Scheduled maintenance jobs (media cleanup, temp cleanup)
      • Finance reconciliation activity
      • Teacher workflows (homework copy, attachments)
      • External API usage (VietQR)
    • Made it explicit that a quiet day is still a story, not an empty report.
  6. Improved email reporting quality
    • Clarified that email summaries must be HTML + plain text, not Markdown.
    • Required the full “A. Executive Summary” to be sent, not a truncated severity-only version.
    • Ensured logs are treated as untrusted input and safely escaped in email.

What I learned

  1. “No errors” is not insight
    • A system can be healthy, busy, and correct—and still produce zero ERROR/WARNING logs.
    • If the summary only reports severity, it fails the operator.
  2. INFO logs are first-class operational signals
    • In Alice, most critical workflows (uploads, processing, reconciliation) succeed quietly.
    • Ignoring INFO-level logs creates false silence.
  3. Observability is narrative, not metrics
    • Counts and tables are necessary, but insufficient.
    • A human-readable narrative builds trust and shared understanding.
  4. Parsers lie unless proven otherwise
    • A single suspicious number (“Total log lines: 1”) is a red flag.
    • Every reporting tool must expose:
      • total lines read
      • parsed vs unparsed lines
      • what it might be missing
  5. Production calm comes from continuity
    • Daily reports create institutional memory.
    • Even on boring days, writing down “nothing went wrong, and here’s what worked” matters.

Outcome

By the end of today, Alice is closer to being a self-explaining system:

  • Logs → Reports → Daily understanding
  • Failures treated as data
  • Quiet days treated as evidence, not absence

No refactors. No new features.
Just clearer truth.