{"event":{"id":"evt-2025q1-responses","dedupe_key":"historical_material_change:2025-03-11:responses-api-and-agents-sdk-launch","event_type":"historical_material_change","title":"Responses API and Agents SDK launch","summary":"OpenAI released Responses API tool integrations and an open Agents SDK for orchestration, handoffs and tracing.","occurred_at":"2025-03-11T00:00:00.000Z","published_at":"2025-03-11T00:00:00.000Z","observed_at":"2026-10-09T19:12:47.000Z","reconstructed_at":"2026-10-09T19:12:47.000Z","ingest_type":"live_world_scan","locations":null,"status":"verified","confidence":0.97,"metadata":{"what_happened_at_time":"OpenAI released Responses API tool integrations and an open Agents SDK for orchestration, handoffs and tracing.","what_must_not_be_inferred":"Built-in search and computer-use previews are bounded tools; orchestration is not proof of autonomous agents.","availability_status":"developer_release","affected_layers":["layer-agents","layer-software","layer-open-source"],"epistemic_status":"observed_fact"},"created_at":"2026-10-10T08:11:02.805Z","updated_at":"2026-10-10T08:11:02.805Z"},"artifacts":[{"id":"art-2025q1-responses","dedupe_key":"a5d25e46d46f3b2c33131f205d0a13fe6d734e6aa2fb942c722345d1d3d593ca","canonical_url":"https://openai.com/index/new-tools-for-building-agents/","evidence_locator":"","artifact_type":"official_announcement","title":"Responses API and Agents SDK launch","summary":"OpenAI released Responses API tool integrations and an open Agents SDK for orchestration, handoffs and tracing.","creator_entities":["OpenAI"],"released_at":"2025-03-11T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2025-Q1"},"created_at":"2026-10-10T08:11:02.799Z","updated_at":"2026-10-10T08:11:02.799Z","relation":"documented_by"}],"signals":[{"id":"sig-2025q1-agents","statement":"Browser-operation previews, research sessions and coding/tool SDKs made bounded delegation accessible with human takeover and review boundaries.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.93,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-09T19:12:47.000Z","created_at":"2026-10-10T08:11:02.807Z","updated_at":"2026-10-10T08:11:02.807Z"},{"id":"sig-2025q1-open-source","statement":"Reasoning weights, agent SDKs and robot-model resources broadened adaptable components while licenses differed.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.93,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-09T19:12:47.000Z","created_at":"2026-10-10T08:11:02.807Z","updated_at":"2026-10-10T08:11:02.807Z"},{"id":"sig-2025q1-software","statement":"Agent tooling moved into browser tasks, terminal coding and integrated response/tool APIs, with preview scope explicit.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.93,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-09T19:12:47.000Z","created_at":"2026-10-10T08:11:02.808Z","updated_at":"2026-10-10T08:11:02.808Z"}]}