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* feat(llm): re-resolve llm_overlay after input interpolation rewrites an agent's role llm_overlay (#7500) resolves an agent's model at construction, by its role text. A CrewBase crew declares roles as templates in YAML — "Researcher for {repo}" — that Crew._interpolate_inputs rewrites at kickoff, after construction. An overlay keyed by the interpolated role, which is the text every trace records, never matched: on a production flow a plan routed 3 of 5 agents and left the two templated ones on their declared model. Agent.interpolate_inputs now looks the overlay up again when the rewrite changed the role: a key sets llm to the mapped model (create_llm, as construction does), carrying the streaming flag Crew.kickoff(stream=True) set on the instance it replaces; a miss, no active overlay, or an unchanged role leaves llm exactly as it is — construction's resolution and instance stand, nothing reverts. The executor binds agent.llm per task, after interpolation, so the task runs on the new model (pinned through prepare_kickoff). Not followed by the swap, documented: a task's string guardrail LLM, an auto-created Memory LLM, the crew_creation span. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> * fix(llm): read llm_overlay once per agent — a re-validation must not replace an llm the agent already runs on Found while battle-testing the previous commit with real calls: the event bus registers an agent in its RuntimeState the first time it emits, and RuntimeState(root=[agent]) re-runs Agent.post_init_setup on the same object. Inside a block that maps the agent's role, the construction-time overlay read (#7500) then replaced the llm the agent was already running on and dropped the state set on it (stream=True). An agent built outside the block picked the mapped model up on its second standalone kickoff inside one, against #7500's own contract; Crew.replay inside a block did the same. A private flag marks the construction-time read as done; a re-validation keeps the llm the agent has — the one construction resolved, or the one interpolate_inputs set when the role changed. Copies (kickoff_for_each) are new instances and read the overlay as before. Zero-cost tests through RuntimeState; docstrings corrected (a crew Memory built at kickoff does follow the swap; a stream must be iterated inside the block). Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5.1 <noreply@anthropic.com>