{"event":{"id":"evt-2025q4-skills-standard","dedupe_key":"historical_material_change:2025-12-18:agent-skills-specification-is-opened-for-portability","event_type":"historical_material_change","title":"Agent Skills specification is opened for portability","summary":"Anthropic updates its Skills announcement to publish an open cross-platform standard.","occurred_at":"2025-12-18T00:00:00.000Z","published_at":"2025-12-18T00:00:00.000Z","observed_at":"2026-10-10T06:24:42.000Z","reconstructed_at":"2026-10-10T06:24:42.000Z","ingest_type":"live_world_scan","locations":null,"status":"verified","confidence":0.96,"metadata":{"what_happened_at_time":"Anthropic updates its Skills announcement to publish an open cross-platform standard.","what_must_not_be_inferred":"Specification publication does not establish uniform support or a permission enforcement standard.","availability_status":"open_specification","affected_layers":["layer-open-source","layer-software","layer-agents"],"epistemic_status":"observed_fact","reported_capabilities_are_actor_claims":true,"time_precision":"day"},"created_at":"2026-10-10T08:37:10.922Z","updated_at":"2026-10-10T08:37:10.922Z"},"artifacts":[{"id":"art-2025q4-skills-standard","dedupe_key":"eaad5299cdf108a36a92651a9afce7ea29af055bfcfcfa892d78e3b34f1dfdc3","canonical_url":"https://www.anthropic.com/engineering/equipping-agents-for-the-real-world-with-agent-skills","evidence_locator":"","artifact_type":"official_announcement","title":"Agent Skills specification is opened for portability","summary":"Anthropic updates its Skills announcement to publish an open cross-platform standard.","creator_entities":["Anthropic"],"released_at":"2025-12-18T00:00:00.000Z","content_hash":null,"metadata":{"historical_scope":"2025-Q4","availability_status":"open_specification"},"created_at":"2026-10-10T08:37:10.919Z","updated_at":"2026-10-10T08:37:10.919Z","relation":"documented_by"}],"signals":[{"id":"sig-2025q4-skills-standard","statement":"Anthropic updates its Skills announcement to publish an open cross-platform standard. Specification publication does not establish uniform support or a permission enforcement standard.","signal_type":"historical_layer_delta","direction":"increasing","confidence":0.9,"epistemic_status":"supported_inference","mapping_mode":"retrospective","reconstructed_at":"2026-10-10T06:24:42.000Z","created_at":"2026-10-10T08:37:10.926Z","updated_at":"2026-10-10T08:37:10.926Z"}]}