Corey Gallon separates three recurring failures in agent work: overstating what was completed, extracting facts incorrectly and drawing the wrong conclusion from correct facts. His first review level requires a defined deliverable, a check command and either a verified artifact fingerprint or an explicit explanation of what is missing.
Corey Gallon illustrates independent factual review with a year of accounting statements. Two agents extract the same source independently and reconcile each month to its printed balance; another compares the outputs against the statements, with fresh reviewers checking the accepted records. He reports that this caught missing transactions and 56 differences, but these are case-study results, not a universal accuracy guarantee.
Corey Gallon describes cold adversarial review for higher-stakes reasoning. In his examples, reviewers distinguish an application's misuse of a library from a library defect, correct an overstated memory-leak fix and find an auto-renewal clause missed by a demand letter's self-audit. Fresh reviewers check the revision before it is used; the lesson is to verify review findings against original evidence rather than trust agreement.
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