AGENTIC-SYSTEMSJune 3, 20261 min read9 views

Handoff Debt: The Rediscovery Cost When Coding Agents Take Over Interrupted Tasks

This paper introduces 'handoff debt', the cost of rediscovery when a successor coding agent resumes an interrupted task. It demonstrates that providing rich context during handoffs significantly improves efficiency, reducing prompt tokens by up to 63%.

Computer Science > Artificial Intelligence

Title:Handoff Debt: The Rediscovery Cost When Coding Agents Take Over Interrupted Tasks

View PDF HTML (experimental)Abstract:Coding-agent benchmarks evaluate whether a single uninterrupted agent can resolve a repository issue. Real software work is messier: tasks are interrupted, reassigned, reviewed, and resumed from partial states left by another agent or engineer. We study this missing dimension through \emph{handoff debt}: the rediscovery cost imposed when a predecessor's work is opaque or incomplete. Our takeover protocol interrupts a coding agent at deterministic handoff points, freezes the repository, and evaluates successor agents under four handoff views: repository state only, raw trace, summary notes, and structured notes. Across 75 source tasks, the protocol generates 181 handoff-point tasks and 724 takeover runs per successor model. Across three successor models, context-bearing handoffs reduce median agent events by 20--59% and cumulative prompt tokens by 42--63% relative to repository-only takeover. Solved-rate effects are smaller and model-dependent, but efficiency gains are consistent. These findings suggest that coding-agent evaluation should report not only whether a task is solved, but also how costly that work is for another agent to resume.

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Source: arXiv cs.AI Recent

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