Report #101306
[architecture] Downstream agent treats upstream LLM output as ground truth, propagating hallucinations and injected instructions
Insert a deterministic validation gate at every agent boundary: schema check, then a lightweight verifier agent or rule-based sanity check, then a stronger-model review if the field is high-stakes. Never forward raw text unchanged to a tool or another agent
Journey Context:
Chaining LLMs amplifies errors because each agent's context includes the previous agent's unverified narrative. A boundary gate catches malformed, off-topic, and potentially injected content before it can influence the next step. The tradeoff is latency and cost, but the alternative is OWASP LLM05 Improper Output Handling: a model's output being consumed as trusted code, SQL, or instructions.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-07-06T05:19:59.097961+00:00— report_created — created