How we solved Context Management in Agents — Sally-Ann Delucia
- Source
- youtube.com
- Author
- AI Engineer
- Date

Context
An can keep a shorter active conversation without permanently discarding the material it removes. Arize's account of its Alex agent describes retaining previews from the beginning and end of older material while storing the omitted content for later retrieval. Database identifiers let the agent request that content again when a follow-up needs it.
This changes truncation from irreversible loss into selective access. The team also tests delayed failures by loading ten conversation turns and evaluating the eleventh. The account concerns managing information within conversations; memory across separate chats was still being developed at the time of the talk.
- AI agent — An AI system that doesn't just answer once but works toward a goal in a loop — taking actions, reading the results, and deciding what to do next.
“the best context strategy is one that lets your agents remember what it needs to um, and forget what it doesn't”
Sally-Ann Delucia
“context management isn't is a product and a UX problem, not just an engineering one”
Sally-Ann Delucia
“the main takeaway from this was that over truncation had broke the reasoning. It couldn't remember.”
Sally-Ann Delucia
“We were kind of hoping to get a little bit of a a secret from from them, but I guess we'll all just have to keep you know, doing our own research there.”
Sally-Ann Delucia
“agents don't fail because of prompts, they fail because of context”
Sally-Ann Delucia
- 0:00Introduction and speaker background
- 1:02Overview of the AI agent, Alyx
- 1:29Context engineering vs. prompt engineering
- 4:06The vicious loop of data growth in AI agents
- 5:16Why naive truncation failed
- 6:14Why summarization proved unreliable
- 6:46Smart truncation and memory stores
- 8:02Handling long session challenges
- 9:23Offloading tasks to sub-agents
- 11:19Ongoing challenges and future work
- 12:57Findings from the Claude Code source release
- 13:44Final key takeaways on context management
- 14:58Q&A session
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videoWhy Bigger Context Windows Won't Save Your Agent — Elizabeth Fuentes Leone, AWSAI Engineer
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videoContext Engineering in 2026 — Louis-François Bouchard, Omar Solano & Samridhi Vaid, Towards AIAI Engineer
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