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1016 articles found

AI Employee Slashes Thread Costs by 82% Using Prompt Caching Architecture

AI Employee Slashes Thread Costs by 82% Using Prompt Caching Architecture

Jul 23, 2026
Viktor

Viktor, an AI employee built for Slack and Microsoft Teams, slashes agent thread costs by 81.8% on Claude Opus 4.8 through a prompt caching architecture that drops a 40-step thread from $11.35 to just $2.07 by keeping prefixes byte-stable, treating threads as append-only logs, and timing cache compaction strategically around …

ACP v2 Draft Drops With Major Breaking Changes, Overhauling Session States and Agent Interaction Patterns

ACP v2 Draft Drops With Major Breaking Changes, Overhauling Session States and Agent Interaction Patterns

Jul 22, 2026
Agent Client Protocol

ACP v2 draft releases with major breaking changes, overhauling session states to allow agents to send updates freely, introducing uniform message patching, redesigned file diff structures, and more flexible permissions — but implementers are warned to hold off on production deployment until the protocol is finalized.

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