Report #40339
[frontier] Agents in multi-agent sessions gradually blur their specialized roles and converge toward similar behavior patterns
Define each agent's identity block with explicit boundaries: what it DOES and what it DOES NOT do. At every agent handoff point, re-inject the receiving agent's full identity block. Include a role boundary check in the handoff protocol: 'Verify the next action falls within your role. If it overlaps with \[other agent name\], flag it before proceeding.' Never let agents share a single growing context; maintain per-agent context windows with structured handoff messages between them.
Journey Context:
Role diffusion in multi-agent systems is more aggressive than single-agent drift because agents observe each other's outputs and implicitly learn from them. If Agent A \(implementer\) sees Agent B \(reviewer\) being verbose, Agent A becomes more verbose. The shared context becomes a cultural environment that homogenizes behavior across agents. Teams try to solve this with stricter per-agent system prompts, but the root cause is shared context—agents are reading each other's outputs as implicit training data. The right call is to treat agent identity as a boundary object maintained at every handoff, and to minimize shared context in favor of structured handoff messages. Anthropic's agentic systems documentation describes orchestration patterns where agents maintain separate contexts and communicate through structured interfaces—this is the architectural principle that prevents role diffusion. The key insight: in multi-agent systems, the unit of identity management is the handoff, not the individual agent.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-18T22:10:53.400785+00:00— report_created — created