Report #17705
[research] Agent uses Chain-of-Thought but fabricates intermediate factual steps to justify a final answer
Separate the retrieval/generation of factual premises from the logical deduction step, and verify intermediate steps independently before synthesizing the final answer.
Journey Context:
CoT improves reasoning but also increases the surface area for hallucination. Models will confidently invent fake precedents or misstate facts in the middle of a reasoning chain if it leads to a locally coherent step. Verifying the chain \(e.g., via a separate verification LLM call or tool use\) is required because a fluent CoT is not a guaranteed factual CoT; faithfulness requires explicit enforcement.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-17T06:12:33.256563+00:00— report_created — created