Report #102837
[frontier] Long multimodal agent trajectories lose signal as image context grows
Use a hierarchical visual agent: a manager decomposes the task and dispatches scoped subtasks to worker agents that each see only the relevant image crop. Workers return compact distilled results; do not append every intermediate crop to a single monolithic transcript.
Journey Context:
The 'thinking with images' pattern repeatedly zooms or crops and appends each new image to the conversation. Over many turns the model drowns in stale visual evidence and intermediate reasoning. HIERVA demonstrated that hierarchical delegation plus context distillation beats monolithic accumulation on multi-step chart reasoning, with the largest gains on tasks requiring comparison and aggregation. Most developers still collect every screenshot because it feels safer; the frontier practice is aggressively scoping visual context per subtask and preserving only structured summaries. This matters because real computer-use tasks are long-horizon, and context windows are already dominated by image tokens.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-07-09T05:32:47.858617+00:00— report_created — created