v2.1.197

2.1.197

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+21,695 tokens

• Updated Claude model guidance for Sonnet 5: added Sonnet 5 to the model catalog, made generic Sonnet/balanced aliases resolve to Sonnet 5, raised Sonnet 4.6 guidance to 128K max output, and updated scheduled agent creation to default to claude-sonnet-5.
• Expanded Sonnet 5 migration guidance across the Claude app-building and model-migration docs, covering adaptive thinking by default, removed budget_tokens and non-default sampling parameters, xhigh effort, the new tokenizer, high-resolution vision, computer use, tool-use behavior, progress updates, literal instruction following, review-harness tuning, frontend/design prompt tuning, and security refusal handling.
• Removed the standalone “Current Claude models” system prompt now that current model guidance is carried by the shared model catalog and migration/app-building docs.
• Documented agent_with_overrides for managed-agent session creation, including session-local overrides for model, system, tools, mcp_servers, and skills, tri-state inheritance/clearing/replacement semantics, version behavior, response shape, audit metadata, related error cases, and multiagent behavior where overrides apply only to the coordinator and self copies.
• Expanded managed-agent endpoint guidance with deployment-run retrieve/list endpoints, pagination cursor semantics, the three accepted session agent forms, and live-preview SSE query parameters.
• Added managed-agent live-preview event guidance for event_start/event_delta, including opt-in query syntax, accumulation and reconciliation with buffered events, ordering, reconnect behavior, shedding limitations, text-only scope, and non-persistence.
• Added managed-agent credential injection_location guidance for scoping secret substitution to request headers and/or bodies, including create/update merge semantics, runtime effect, placeholder behavior, and immutable credential keys.
• Added managed-agent webhook coverage for agent, deployment, and scheduled deployment-run lifecycle events, including auto-pause behavior and how to follow a scheduled run from its webhook event to the created session.
• Updated advisor/tool-use model pairing guidance to allow Sonnet 5 executors to use Opus 4.8 or Opus 4.7 advisors.