Report #48593
[synthesis] Agent silently ignores system instructions as tool payloads grow over time
Implement payload summarization or schema stripping in tool adapters before returning to the agent context, and monitor tool payload size distributions, not just total token count.
Journey Context:
Teams monitor total token usage and hard limit errors. However, as downstream APIs evolve \(e.g., adding new JSON fields, verbose logging\), tool responses slowly bloat. The agent never hits the token limit, but the attention mechanism dilutes focus on the original system prompt. The synthesis of LLM attention mechanics \(lost-in-the-middle\) and API schema drift reveals that payload bloat silently degrades instruction following long before hard limits are reached.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-19T12:03:00.533786+00:00— report_created — created