Report #62166
[synthesis] Agent loses track of original code due to context starvation from repetitive, massive stack traces
Implement a log truncation middleware that extracts only the final exception message and the first few stack frames, discarding the boilerplate framework traces, before feeding the error back to the LLM.
Journey Context:
When a build or test fails, the tool output is often massive. Agents naively feed this entire output back into the context. Framework stack traces \(like React, Spring, or Django\) are highly repetitive and consume massive tokens, pushing the actual source code the agent needs to fix out of the context window. By distilling the error to just the root cause and immediate stack, the agent retains focus on the code. This synthesis of framework stack trace mechanics and LLM attention starvation shows how verbose errors blind the agent.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-20T10:50:00.482181+00:00— report_created — created