{ "format": "agent-article-v0", "article_id": "EA-142", "canonical_url": "/tools/ea-142-aws-strands-agents", "page_type": "reference", "claim_ids": [], "evidence_ids": [ "EVD-EA-142-URL-7ACD210C5769", "EVD-EA-142-URL-6401171265C8", "EA-142-R11-RESEARCH", "EA-142-R11-WEB-READBACK" ], "unknown_ids": [ "EA-142-UNKNOWN-01", "EA-142-UNKNOWN-CURRENTNESS" ], "operational_object_ids": [], "provider": [], "models": [], "plans": [], "surfaces": [], "regions": [], "current_status": "UNKNOWN", "observation_status": "SPEC_ONLY", "freshness": "UNKNOWN", "last_verified": null, "supersedes": [], "superseded_by": [], "provenance": [ "COMM-044-EA0142", "SRC-EA-142-URL-7ACD210C5769", "SRC-EA-142-URL-6401171265C8", "WEBBODY-EA0142-R8-B46FCA2B" ], "article_sources": [ { "id": "EVD-EA-142-URL-7ACD210C5769", "evidence_class": "RESEARCH", "title": "source_class=official project documentation; exact_title=Strands Agents — Open Source AI Agent SDK for Python & TypeScript; author/org=AWS / Strands Agents; canonical_url=", "href": "https://strandsagents.com/", "supports": [], "limit": "元の監査済み資料に記載された参照先です。URLの復元は、資料の最新性や全主張の支持を新たに検証したことを意味しません。", "origin_class": "SOURCE_PACKET_REFERENCE", "source_or_experiment_ids": [ "SRC-EA-142-URL-7ACD210C5769" ], "supporting_locators": [ "EVIDENCE_TABLE", "- source_class=official project documentation; exact_title=Strands Agents — Open Source AI Agent SDK for Python & TypeScript; author/org=AWS / Strands Agents; canonical_url=https://strandsagents.com/" ], "scope": "EVIDENCE_TABLE", "provenance_status": "SOURCE_PACKET_REFERENCE_PROJECTED" }, { "id": "EVD-EA-142-URL-6401171265C8", "evidence_class": "RESEARCH", "title": "source_class=author-maintained implementation; exact_title=Strands Agents SDK repositories; author/org=AWS / strands-agents; canonical_url=", "href": "https://github.com/strands-agents", "supports": [], "limit": "元の監査済み資料に記載された参照先です。URLの復元は、資料の最新性や全主張の支持を新たに検証したことを意味しません。", "origin_class": "SOURCE_PACKET_REFERENCE", "source_or_experiment_ids": [ "SRC-EA-142-URL-6401171265C8" ], "supporting_locators": [ "EVIDENCE_TABLE", "- source_class=author-maintained implementation; exact_title=Strands Agents SDK repositories; author/org=AWS / strands-agents; canonical_url=https://github.com/strands-agents" ], "scope": "EVIDENCE_TABLE", "provenance_status": "SOURCE_PACKET_REFERENCE_PROJECTED" }, { "id": "EA-142-R11-RESEARCH", "evidence_class": "RESEARCH", "title": "EA-142 監査済みresearch / canonical revision binding", "supports": [ "- ESTABLISHED: 公式DocsはStrandsをPython/TypeScriptのopen-source agent toolkitとして、tool登録、tool call hook/cancel、context management、execution limits、observability、複数model/cloud、multi-agent patternを案内し、install入口を示している。\n- NOT_ESTABLISHED: “any model/any cloud”“production agents”のDocs表現は、任意modelのfeature parity、AWS以外のcloudでの同一挙動、production safety・SLA・AgentCore利用可否を保証しない。" ], "limit": "canonical監査・revision bindingの存在を示す。外部ソースcurrentnessが本文またはcontrol-planeで確定していない場合は、currentnessをUNKNOWNのまま保持する。", "origin_class": "AUDITED_CANONICAL_RESEARCH_PACKET", "source_or_experiment_ids": [ "COMM-044-EA0142" ], "supporting_locators": [ "COMM-044-EA0142", "EA-142-R5-LEGACY-MIGRATION-20261008-R1", "content/staging/EA-142.md" ], "scope": "監査済みEA本文・canonical revision・既存Source Graph relationの範囲。欠損currentnessは推測で閉じない。", "provenance_status": "AUDIT_PASS_CANONICAL_BINDING" }, { "id": "EA-142-R11-WEB-READBACK", "evidence_class": "IMPL", "title": "EA-142 Web body identity / canonical readback", "supports": [ "canonical staging bodyのSHA-256一致とR9 canonical ledger readbackをProduction projectionの入力として検証する。" ], "limit": "body identity/readbackは本文claim自体の真偽や外部ソースの最新性を追加保証しない。", "checked_at": null, "origin_class": "IMPLEMENTATION_READBACK", "source_or_experiment_ids": [ "WEBBODY-EA0142-R8-B46FCA2B" ], "supporting_locators": [ "WEBBODY-EA0142-R8-B46FCA2B", "content/staging/EA-142.md", "EA-142-R5-LEGACY-MIGRATION-20261008-R1" ], "scope": "R9/R10 canonical readback後のProduction生成時body identity。", "provenance_status": "CANONICAL_READBACK_BODY_HASH_MATCH" } ], "research_sections": [ { "heading": "WHY_THIS_MATTERS_TO_UPDATE", "text": "AWS発のopen-source agent SDKとして、Python/TypeScript、tool hook、multi-agent、model/cloud portability、observabilityとAgentCoreの境界を現行仕様へ反映する。" }, { "heading": "SCOPE_ROUTING", "text": "provider mapping / implementation / interoperability / security / audit / operability。Strands SDKとAmazon Bedrock/AgentCore managed serviceを分離。" }, { "heading": "CLAIM_OR_RESEARCH_QUESTION", "text": "現行Strands公式DocsがSDKの言語・導入・tool・hook・model/cloud・observability・multi-agent機能を何と記載しているか。" }, { "heading": "EVIDENCE_TABLE", "text": "- source_class=official project documentation; exact_title=Strands Agents — Open Source AI Agent SDK for Python & TypeScript; author/org=AWS / Strands Agents; canonical_url=https://strandsagents.com/; publication/update/access_date=current docs accessed 2026-09-13 JST; version/release/tag/commit/API revision=docs current; page shows pip install strands-agents and npm install @strands-agents/sdk, fixed release not recorded; supporting_locator=Home / Get Started / Build your way / tool hooks / multi-agent patterns（open-source toolkit、Python/TypeScript SDK、tools、BeforeToolCall/AfterToolCall hooks、context management、execution limits、observability、any model/any cloud、Agent-as-Tool/Swarm等の記述）; evidence_label=VERIFIED_SPEC+PRODUCT_VOLATILE; relation=support+limit\n- source_class=author-maintained implementation; exact_title=Strands Agents SDK repositories; author/org=AWS / strands-agents; canonical_url=https://github.com/strands-agents; publication/update/access_date=current organization pages accessed 2026-09-13 JST; version/release/tag/commit/API revision=repository/tag must be pinned by downstream; supporting_locator=Python SDK and TypeScript SDK links from official docs; evidence_label=OSS_PRACTICE+PRODUCT_VOLATILE; relation=support+context" }, { "heading": "FINDINGS", "text": "- ESTABLISHED: 公式DocsはStrandsをPython/TypeScriptのopen-source agent toolkitとして、tool登録、tool call hook/cancel、context management、execution limits、observability、複数model/cloud、multi-agent patternを案内し、install入口を示している。\n- NOT_ESTABLISHED: “any model/any cloud”“production agents”のDocs表現は、任意modelのfeature parity、AWS以外のcloudでの同一挙動、production safety・SLA・AgentCore利用可否を保証しない。" }, { "heading": "LIMITS / COUNTEREVIDENCE / FAILURE ENVELOPE", "text": "model-driven loopはtool誤選択・loop・prompt injection・副作用を残す。hookが実装されても全経路のfail-closed・監査・side effect idempotencyを証明しない。Docsの顧客引用・導入事例は独立benchmarkではない。" }, { "heading": "AVAILABILITY_GATES", "text": "SDK package/version、Python/Node/TypeScript runtime、model provider・API credentials・region・契約、AWS native integration、AgentCore Runtime/Bedrock Guardrails、MCP/tool権限、OTel backend、rate limit・cost。" }, { "heading": "IMPLEMENTATION_STATE", "text": "OSS/author-maintained SDK docs + PRODUCT_VOLATILE。safe install/sampleの存在のみ確認し、AWS account・認証済みtenant・外部tool・本番負荷試験は未実施。" }, { "heading": "BENCHMARK_OR_EVAL", "text": "公式DocsにはEvalsリンクとobservability構成があるが、このPacketでは独立・再現可能な業務benchmarkを確認していない。導入事例の数値は別SOURCE_REPORTとして再採集が必要。" }, { "heading": "SECURITY / PRIVACY / AUDIT / COST / OPERABILITY", "text": "Security=BeforeToolCall等のhook、allowlist、human approval、AWS IAMをactionごとに設計。Privacy=provider/cloudごとのprompt・tool・trace境界。Audit=agent/model/tool/hook/trace/versionを保存。Cost=モデル・tool・retry・observability・AgentCoreを含む。Operability=SDK pin、provider fallback、timeout、rollback、dead-letterを設計。" }, { "heading": "SAFE_WORDING_FOR_FUTURE_BOOK", "text": "「Strands Agentsの公式Docsは、AWS発のPython/TypeScript open-source SDKとして、tool、hook、context、execution limit、observability、multi-agent pattern、複数model/cloudの実装入口を示している。SDKの機能記載は、各model・cloud・契約・regionでの可用性やproduction安全性を保証しない。」" }, { "heading": "UPDATE_WORK_HANDOFF", "text": "AWS provider mappingにStrands SDKを記録し、AgentCoreはEA-143へ分離する。次回は固定release/tag、model adapter matrix、hookのfail-open/closed、IAM/OTel data boundary、公開issue・security advisory、実業務evalを補う。" }, { "heading": "OPEN_UNKNOWN", "text": "current SDK release/commit、provider parity、multi-agent state recovery、hook coverage、AgentCoreとのexact integration、region/plan、security incident、実業務benchmark。" }, { "heading": "STOP_CONDITION", "text": "Strands SDKの存在をBedrock/AgentCoreのmanaged availabilityへ拡張しない。Docsの“production”や顧客引用を独立安全・性能証拠にしない。\nUNIT_CLOSE_STATUS: INDIVIDUAL_BOUNDED_CLOSE / EVIDENCE_RECORDED / UNKNOWN_PRESERVED\n\n---" } ], "human_url": "/tools/ea-142-aws-strands-agents", "markdown_url": "/agent/article.md?path=%2Ftools%2Fea-142-aws-strands-agents", "json_url": "/agent/article.json?path=%2Ftools%2Fea-142-aws-strands-agents" }