Slides: Katelyn Lesse – Evolving Claude APIs for Agents, Anthropic
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Katelyn Lesse – Evolving Claude APIs for Agents, Anthropic
Relationship To World's Fair 2026
These slides are extracted from a public AI Engineer YouTube video connected to World's Fair 2026. Speaker-matched clips are supporting context unless later confirmed as exact session recordings; official livestream recordings are day-level/event-level source material.
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Extracted Slides
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Harness Claude's Manage Claude's context Give Claude a computer &
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EVOLVING CLAUDE APIS FOR AGENTS
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EVOLVING CLAUDE APIS FOR AGENTS
OEP EER MIRREN © KATELYN LESSE /énoineering Leader ANTHROP\C
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Thinking Extended response=client.messages.create( model='claude-sonnet-4-5-2e258929" max_tokensm8192, thinking=( "enabled":True, "budget_tokens":
messages=[{ "role":"user", "content":“Help me debug why this system fails under load"
ANTHROPIC
AIE/LEAD EVOLVINGCLAUDEAPISFORAGENTS
GoogleDeepMind PRESENTED BY KATELYN LESSE/EngineeringLeader ANTHROPIC
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EVOLVING CLAUDE APIS FOR AGENTS
CEP AEEA MIRREN © KATELYN LESSE /Enoineering Leader, ANTHROP\C
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MCP response=client.messages.create( mcp_servers=[ model="claude-sonnet-4-5-2025e929" max_tokens=4896, ("url":"mcp://github-server" qnub:weu
]=sabesso "role":"user"
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response=client.messages.create(
model="claude-s0nnet-4-5-20250929"
Memory
max_tokens=4896,
messages=[{
"role":"user",
content":Debug why the payment service is timing out"
Laude saves:
Payment servtce uses 3es
retrylogtcLn Paymentcllent.java,
teami
preters clrcuit breakerpattern
ANTHROPIC
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Engineering the future of Al
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Code Summit
Google Cloud
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