No unhandled exception or Python traceback occurred.

When the engine was allowed to run to completion with full output capture (no `| head`, no truncation):

- It emitted the badge.
- It produced the raw `## Ranked Evidence Clusters` block (wrapped in `<!-- EVIDENCE FOR SYNTHESIS -->` comments).
- It emitted the complete `<!-- PASS-THROUGH FOOTER -->` with the emoji tree.
- At the very end it printed:
  
  # END OF last30days CANONICAL OUTPUT

  Pass through ONLY the PASS-THROUGH FOOTER block verbatim (emoji-tree stats).
  The EVIDENCE FOR SYNTHESIS block above it is raw evidence for your synthesis,
  not output. Transform it into `What I learned:` prose paragraphs per LAW 2.

  If your response contains the literal string `### 1.` followed by a score
  tuple like `(score N, M items, sources: ...)`, you dumped evidence instead
  of synthesizing - STOP and regenerate.
  
- The engine considered the run successful and even reported "Research quality: 5/5 core sources."

The observed problem was therefore not a crash, but:

- In the original invocation, shell-level truncation (`| head -100`) + backgrounding cut off the output before the badge, evidence block, footer, and synthesis instructions could be captured.
- The Grok Build host/agent did not perform the synthesis step required by the skill contract (reading the evidence comments and emitting the canonical "What I learned:" + KEY PATTERNS shape).
- Only early processing logs and partial evidence clusters were visible in the session.