Cross-Session Agent Memory: Production Architecture in 2026
How to remember a user across days, sessions, and devices without leaking context between accounts. The three-layer pattern that works at production scale safely.
10 min read
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AI Voice Agent Insights & Guides
Browse older CallSphere articles on AI voice agents, contact center automation, and conversational AI.
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Lakera vs PromptArmor vs NeMo Guardrails: 2026 Honest Picks
Three serious guardrail platforms with different design centers and pricing. Detection accuracy, latency, and integration depth across the leading agent stacks today.
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Human-in-the-Loop with LangGraph Interrupts: Approve, Edit, Resume
LangGraph 1.0's interrupt() primitive makes human-in-the-loop a one-liner. Approval queues, edit-and-resume, and dynamic break points in production.
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Pydantic AI April 2026 Update: Typed Agents and Structured Tools
Pydantic AI's April release tightens the typed-agent loop and adds structured tool definitions. Why type-safe agents reduce production bugs and speed iteration.
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Snowflake MCP Server: Data Agents on the Warehouse Without Risk
Snowflake's MCP server exposes Cortex, semantic models, and SQL to agents cleanly. How to build a data agent without giving it raw warehouse access or query budget risk.
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Adoption Across San Francisco, New York, Boston, and Austin: Browserbase Stagehand 2.0 — The Li
Adoption Across San Francisco, New York, Boston, and Austin perspective on Stagehand 2.0 stabilized the browser-agent SDK that everyone is quietly building on top of.
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Sales and RevOps Lens: ElevenLabs Conversational AI 2.0 — Voice Agents Get Real Tools
Sales and RevOps Lens perspective on ElevenLabs Conversational 2.0 ships native MCP tool use, sub-second turn-taking, and a redesigned dashboard that makes voice agents feel like real software.
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Sales and RevOps Lens: EU AI Act Enforcement Begins — What Agentic AI Teams Need To Know
Sales and RevOps Lens perspective on The first wave of EU AI Act enforcement landed in 2026 — here is the practical impact on agent deployments.
9 min read
Sales and RevOps Lens: MCP 1.0 — The Spec That Froze the Agent Tooling Wars
Sales and RevOps Lens perspective on Model Context Protocol 1.0 stabilized in April 2026 and every major agent host now ships an MCP client out of the box.
9 min read
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