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CCA-F study guide · Domain 4: Prompt Engineering & Structured Output (20%)

Task 4.6: Multi-instance and multi-pass review

A model reviewing code it just wrote still holds the reasoning that produced it, so it tends to confirm rather than challenge its own decisions. An independent instance with no generation context catches more. For large reviews, splitting the work into per-file passes plus a cross-file pass keeps attention consistent and catches integration bugs.

Updated 10-26-2026 · Official guide §6, Task 4.6

Key points

  • Self-review limitation: the generating session retains its reasoning context and is less likely to question its decisions.
  • Independent review instances catch subtle issues better than self-review instructions or extended thinking.
  • Multi-pass review: per-file passes for local issues, plus a cross-file integration pass for data flow between modules.
  • Single-pass review of many files causes attention dilution and contradictory findings.
  • A verification pass with self-reported confidence per finding enables calibrated routing to humans.

Common misconceptions

  • "Telling the same session to be its own harshest critic is as good as a second reviewer." Independence, not wording, is what helps.
  • "A bigger context window fixes uneven review depth." Attention, not capacity, is the problem.
  • "Per-file passes catch everything." Integration bugs live between files.

Watch for

  • Generate-then-review inside one session.
  • Consensus filters that drop findings caught only intermittently.
  • Severity used as a stand-in for confidence when routing review.

Practice Task 4.6

Start with the free 10-question check to see where you stand across all five domains. In CCA Prep Studio, 55 practice items cover this task, each tracked toward your mastery score.

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