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Defensive LLM Calling
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Ogata Katsuya
December 05, 2025
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Defensive LLM Calling
Ogata Katsuya
December 05, 2025
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Transcript
Kyoto Tech Talk #9 2025/12/05 Defensive LLM Calling Katsuya Ogata
ࣗݾհ • ໊લ: ॹํ ࠀ࠸ʢ͓͕ͨ ͔ͭʣ • ॴଐ: େࡕେֶ ใՊֶݚڀՊ
• झຯ: ొࢁɾཱྀߦɾαφ • MLLMΛ༻͍ͨಈըղੳͷݚڀ • ϝϧϘϧϯʹߦͬͯ·ͨ͠ • X: @ogata_katsuya • ݸਓ: www.ogatakatsuya.com ϝϧϘϧϯཱྀߦ ޒ৭ϲݪͷొࢁ
None
AWS 2025/10/20 Google Cloud 2025/06/13 Azure 2025/10/29
ΫϥυյΕΔલఏͰར༻͢Δ
2025ʹো͕ى͖ͯͨͷʁ
શ෦
োͷݪҼͱ༰ • ݪҼ • AIΛϗετ͍ͯ͠ΔΫϥυͷো • ίϯύΠϥͷόάʢΠϯϑϥىҼʣ • ༰ •
ϨΠςϯγͷٸܹͳ૿Ճ • ਫ਼ͷԼ • ͦͦLLMΛݺͼग़͢͜ͱ͕Ͱ͖ͳ͍
LLMյΕΔલఏͰར༻͢Δ
🤔
Application Layer Transport Layer Network Layer Network Access Layer TCP/IP
τϥϯεϙʔτ • ΞυϨεϙʔτ൪߸ͷΈʢIPΛͬͯΔͷωοτϫʔΫʣ • ͲΜͳωοτϫʔΫͷܦ࿏Λ௨Δ͔Βͳ͍ • ωοτϫʔΫͦͷͷΛ৴པ͍ͯ͠ͳ͍લఏͰ࣮֬ʹσʔλΛૹΓಧ͚Δ • ࠶ૹ੍ޚɺ੍ޚɺޡΓݕग़ •
ʢͷߟ͑Δʣτϥϯεϙʔτͷׂ • ΞϓϦέʔγϣϯʹωοτϫʔΫͷΓޱΛݟͤΔ • ΞϓϦέʔγϣϯωοτϫʔΫͷҧ͍Λҙࣝ͠ͳͯ͘ྑ͍ • ωοτϫʔΫͦͷͷͷ৴པੑΛ୲อ͢Δ
🤔
Application Layer Transport Layer Network Layer Network Access Layer TCP/IP
Application Endpoint ????? LLM Calling LLM Calling ͜͜
LLM Callingʹ͓͚Δτϥϯεϙʔτ • LLM Providerͷҧ͍Λٵऩͯ͠ɺͦͷΓޱ͚ͩΛݟͤΔ • நԽ • Ӆṭ •
LLM ProviderΛ৴པ͍ͯ͠ͳ͍લఏͰ࣭Λ୲อ͢Δ • ϦτϥΠॲཧ • ଞͷProviderͷϑΥʔϧόοΫ • ඞͣԿ͔͠ΒͷϨεϙϯε͕ฦͬͯ͘Δ
PythonͰͷ࣮ྫ abcΛ༻͍ͨநΫϥεͷ࡞ LiteLLMͱ͍͏ศརϥΠϒϥϦ͋Γ·͢
PythonͰͷ࣮ྫ ֤ϓϩόΠμʔͰͷநϝιουͷ࣮
PythonͰͷ࣮ྫ LLM Callingͷτϥϯεϙʔτ(͔ͳΓંͬͯ·͢)
LLM Callerઢ • τϥϯεϙʔτʹඞཁͳύϥϝʔλΛ͚ͩ͢ • ͲΜͳϓϩόΠμͰ࣮ߦ͞ΕΔ͔Βͳ͍ • ΠϯλʔϑΣʔε͚ͩΛҙࣝͯ͠ɺͦΕҎԼΛؾʹ͠ͳ͍ • ͚ͩͲɺҰఆ࣭͕อͨΕͯɺ͋ΔఔͷͰฦ͕ฦͬͯ͘Δ
ສࣄղܾʁʁʁ • LLMͷোૉʹΤϥʔΛు͍ͯམͪͯ͘Εͳ͍ • Ϩεϙϯε͕500൪ͳΒେৎ • ϨΠςϯγ͕૿Ճ͢Δ • λΠϚʔͱϦτϥΠॲཧͰͳΜͱ͔ͳΔʢ͔ʣ •
ਫ਼͕མͪΔ • োΛײ͢Δ͜ͱ͕͍͠ • ࠷ऴతʹɺ͜·ΊͳࢹͱɺϢʔβʔͷʹৗʹහײͰ͋Δ͜ͱ͕ॏཁ • LangfuseLangsmithͳͲͷLLMࢹମ੍ͷඋඞཁ
·ͱΊ • ͜ͷLTʹ໌֬ͳ͑͋Γ·ͤΜ • LLMͷ࣭Λ୲อ͢ΔͷϓϩόΠμͪΖΜɺϢʔβʔΛෛ͍ͬͯ Δͱ͍͏ఏى • ࠷ݶఏڙ͖͢αʔϏεͷ࣭Λ୲อ͢ΔͨΊͷϑΥʔϧόοΫઓུΛߟ͑ ͍ͯ͘ඞཁ͕͋Δ •
օ͞Μ͕࣮ફ͍ͯ͠ΔϑΥʔϧόοΫઓུɾख๏Λڭ͍͑ͯͩ͘͞
Reference • https://azure.status.microsoft/en-us/status/history/ • https://www.youtube.com/watch?v=D297rfqSFvY • https://status.cloud.google.com/incidents/ow5i3PPK96RduMcb1SsW • https://www.mobihealthnews.com/news/google-cloud-outage-disrupts-ai- services-used-healthcare
• https://www.youtube.com/watch?v=Ar_ckPSwe1Y • https://www.anthropic.com/engineering/a-postmortem-of-three-recent-issues