JamJet · Field notes from the runtime RSS

Things we learned
by running agents.

Engineering posts on durable execution, policy, audit, memory, and the boring reliability work that makes AI agents survive past the demo.

  1. 01
    Engineering just shipped · 5 min read

    I tried to delete a database with an AI agent. The runtime said no.

    JamJet 0.8.1 (Python) and @jamjet/cloud 0.2.2 (TypeScript) ship a runtime safety layer that intercepts an agent's tool calls before the tool function is invoked — and the four zero-setup demos prove the path.

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  2. 02
    Engineering just shipped · 6 min read

    Every AI toolchain is inventing its own safety layer. We shipped one that works across all of them.

    JamJet shipped a portable policy layer that runs the same safety rules across Claude Code hooks, OpenAI Agents SDK guardrails, MCP stdio traffic, and the JamJet Python/TS SDKs. One policy file. One audit trail.

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  3. 03
    Architecture just shipped · 19 min read

    When AI Deletes the Database

    From PocketOS to Replit, AI agents are wiping production databases. Why this is a runtime problem -- not a model problem -- and the architecture pattern that prevents it.

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  4. 04
    Engineering just shipped · 7 min read

    Engram on LongMemEval: What Worked, What Didn't, What We Learned

    We added 8 retrieval-and-reading techniques to Engram and benchmarked each independently against LongMemEval-S. Three shipped, five didn't. The negative results turned out to be the most useful part.

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  5. 05
    Enterprise & Governance · 11 min read

    Your AI Agents Won't Survive an Audit

    89% of enterprise AI agents never reach production. The EU AI Act is enforceable in August. Here's what production safety actually requires — and why most agent frameworks aren't ready.

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  6. 06
    Technical Deep Dive · 6 min read

    Zero-Sidecar Durable AI Agents in Java

    Kill your agent. Restart it. It remembers everything. The JamJet Java Runtime embeds durable execution directly in your JVM — no Docker, no sidecar, no REST overhead.

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  7. 07
    Architecture & Deep Dives · 8 min read

    How to Choose an AI Agent Framework in 2026

    LangGraph, CrewAI, AutoGen, Google ADK, JamJet — the landscape is crowded. Here is a practical decision framework for picking the right one.

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  8. 08
    Architecture & Deep Dives · 7 min read

    Why Your AI Agents Need Observability — and What to Measure

    You would not deploy a microservice without metrics and tracing. Why are you deploying AI agents blind? Here is what to measure and how.

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  9. 09
    Architecture & Deep Dives · 14 min read

    Google ADK vs JamJet: Building a Claims Processing Agent

    We built the same insurance claims agent in both frameworks. One crashes and loses everything. The other picks up exactly where it left off.

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  10. 10
    Architecture & Deep Dives · 6 min read

    Getting Started with MCP: Connect AI Agents to Any Tool

    Model Context Protocol is becoming the USB-C of AI agents. Here is how to connect your agents to databases, APIs, and file systems — with working code.

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  11. 11
    Releases & Updates · 4 min read

    Engram: A Memory Layer for AI Agents That Actually Works

    One cargo install. Zero infrastructure. Your agents remember everything — with temporal knowledge graphs, semantic search, and MCP-native tools.

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  12. 12
    Architecture & Deep Dives · 13 min read

    The State of Memory in Java AI Agents (April 2026)

    A tour of every option Java developers have for adding persistent memory to AI agents — and why most of them stop at chat history.

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  13. 13
    Strategy & Vision · 11 min read

    The Companies Quietly Replacing Entire Workflows with AI Agents — While You're Still Debating Prompts

    While most teams argue about prompt engineering, early movers are shipping autonomous agent workflows that handle claims, onboarding, and due diligence end-to-end. Here's what they know that you don't.

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  14. 14
    Architecture & Deep Dives · 15 min read

    Akka Agents vs JamJet: Actor Model or Agent-Native Runtime?

    Two production-grade approaches to AI agents on the JVM. Akka adapted 20 years of actor infrastructure. JamJet was purpose-built from day one. An honest architectural comparison with code, diagrams, and a decision matrix.

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  15. 15
    Releases & Updates · 8 min read

    JamJet Spring Boot Starter — Production-Grade Agent Runtime for Spring AI

    Add one dependency to your Spring Boot application. Get crash recovery, audit trails, replay testing, and human-in-the-loop for every Spring AI agent call. JamJet brings its full agent runtime — strategies, multi-agent coordination, MCP, A2A, eval harness — to the Spring ecosystem.

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  16. 16
    Strategy & Vision · 9 min read

    Every Major AI Agent Failure Has the Same Root Cause

    Klarna, Air Canada, DPD — sourced post-mortems of real AI agent failures. The pattern is always the same: prototype infrastructure in production. Named companies, real timelines, avoidable lessons.

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  17. 17
    Technical Deep Dive · 12 min read

    AI Agents Need Their Spring Moment — It Starts with the Runtime

    Spring transformed how Java built enterprise apps. AI agents need the same transformation — not another framework, but a production runtime. A sourced comparison of every major JVM AI framework and where the gap remains.

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  18. 18
    Strategy & Vision · 20 min read

    What Your Competitors Are Already Doing With AI Agents

    Named companies, real metrics, sourced data. How finance, legal, support, and insurance deploy AI agents in production — and what it means if you haven't started.

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  19. 19
    Strategy & Vision · 16 min read

    Why AI Agents Are the Next Competitive Advantage — and What Leaders Need to Know

    What AI agents mean for business leaders: faster decisions, better scale, and a new operating model. No code, no jargon — just the strategic case.

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  20. 20
    Releases & Updates · 2 min read

    What's New: Incremental Streaming, LLM Tiebreaker, and Reasoning Modes

    True incremental NDJSON streaming for agent tools, async LLM tiebreaker for coordinator routing, and reasoning mode scoring for Agent Cards.

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  21. 21
    Strategy & Vision · 8 min read

    Why We Built JamJet

    The demo-to-production gap in AI agents is real. Here is why we built a new runtime instead of reaching for another framework.

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  22. 22
    Architecture & Deep Dives · 5 min read

    Building a multi-agent wealth advisor with JamJet

    Four specialist AI agents — risk profiler, market analyst, tax strategist, portfolio architect — collaborate through a durable workflow to produce investment recommendations. A deep dive into the architecture, with a side-by-side comparison to Google ADK.

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  23. 23
    Enterprise & Security · 4 min read

    OAuth delegation and federation auth for AI agents

    RFC 8693 token exchange, scope narrowing, per-step scoping, mTLS federation — how JamJet ensures agents never exceed the permissions they were granted.

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  24. 24
    Enterprise & Security · 4 min read

    Phase 4: Enterprise security for production agents

    Multi-tenant isolation, PII redaction, OAuth delegation, mTLS federation — the enterprise layer that lets agents handle real data in real organizations.

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  25. 25
    Enterprise & Security · 4 min read

    Data governance for AI agents: PII, redaction, and retention

    How JamJet's data policy engine handles PII detection, automatic redaction, and time-based retention — enforced by the Rust runtime, not by convention.

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  26. 26
    Architecture & Deep Dives · 4 min read

    Migrating from LangGraph to JamJet: what actually changes

    A side-by-side walkthrough of the same workflow in LangGraph and JamJet — what maps across, what disappears, and what you gain.

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  27. 27
    Testing & Evaluation · 3 min read

    Testing AI agents like software

    Most teams test their agents by running them manually and eyeballing the output. There is a better way — and it fits in a CI pipeline.

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  28. 28
    Testing & Evaluation · 5 min read

    Phase 3: Eval Harness, Project Templates, and the Path to Trustworthy Agents

    Shipping the eval harness, four built-in project templates, and why testing your agents the same way you test software is the only path forward.

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  29. 29
    Architecture & Deep Dives · 3 min read

    Building a self-evaluating AI agent in 50 lines

    Draft, judge, retry. A workflow that scores its own output and loops until it is good enough — or gives up gracefully.

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  30. 30
    Strategy & Vision · 4 min read

    Why I built JamJet's runtime in Rust

    Not a trendy choice. A conviction-based one. Here is what it cost, what it taught me, and why I would do it again.

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  31. 31
    Releases & Updates · 2 min read

    Announcing JamJet: The Agent-Native Runtime

    We built the runtime we wished existed for AI agents — durable, composable, and built for production from day one.

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