# DVx Blog > Research and operating notes from DVx Ventures — long-form engineering essays, a weekly source-verified AI brief (DVx Signal), and versioned operating guides (Field Manuals). DVx Blog is the publication of [DVx Ventures](https://dvx.ventures), a venture studio. Everything here is written by the people doing the work — engineers and operators inside the portfolio companies — and is first-hand rather than aggregated. Every page on this site is available as clean Markdown: append `.md` to any URL. For example, https://blog.dvx.ventures/how-we-build-software is also served at https://blog.dvx.ventures/how-we-build-software.md. ## Notes Long-form engineering and operating essays from inside the portfolio. - [We stopped treating agent latency as one number.](https://blog.dvx.ventures/we-stopped-treating-agent-latency-as-one-number.md): How we sped up Tactix Co-Pilot across the data path, tool layer, and reasoning loop, then added the timing data to know what to fix next. (Engineering · Amit Maraj & Sahej Maharjan · 2026-07-14) - [The agent doesn't hold the data. It decides where to go get it.](https://blog.dvx.ventures/the-agent-doesnt-hold-the-data.md): Here's how we built a conversational analyst that can't see what it shouldn't. (Engineering · Amit Maraj & Sahej Maharjan · 2026-06-18) - [How we build software across the portfolio](https://blog.dvx.ventures/how-we-build-software.md): AI agents, the harness, the harvested context, and the testable chunks. (Field notes · Amit Maraj · 2026-06-10) - [Rebuilding our Access Control for AI Agents](https://blog.dvx.ventures/access-control-for-ai-agents.md): Here's the data model that lets an AI agent pull naturally from your data without ever seeing a store it shouldn't. (Engineering · Amit Maraj & Sahej Maharjan · 2026-06-03) - [How We Ingest and Prepare Data for Our AI Agents](https://blog.dvx.ventures/how-we-built-a-data-flywheel-for-qsr.md): Email attachments in, refined signals out, and the medallion pipeline in between. (Engineering · Amit Maraj · 2026-05-29) - [How We Rebuilt QSR Around Multi-Agent AI](https://blog.dvx.ventures/ai-agent-architecture.md): Most QSR operators don't need another forecast. They need to know why last Friday was down, and what to do about next Friday. Here's how we rebuilt Tactix around three sequential AI agents to answer that, the determinism we traded for explainability, and the two hard problems we hit getting there. (Engineering · Amit Maraj · 2026-05-07) ## DVx Signal — Builder A weekly, source-verified brief on what changed for people building with AI. Primary sources first; every claim carries a date. - [Signal 004 — The agent desktop became persistent](https://blog.dvx.ventures/signals/agent-desktop-became-persistent.md): Grok Bot put durable teammates on a shared cloud computer, Google added identity and revocation to Workspace Studio, Gemini 3.7 Flash launched, and Codex reached GitLab. - [Signal 003 — Local agent sessions entered the compliance record](https://blog.dvx.ventures/signals/local-agent-sessions-entered-compliance-record.md): Anthropic brought local Claude sessions into Enterprise compliance, agent plugins became portable, and Sonnet 5's planned price increase disappeared. - [Signal 002 — Agent controls moved into the runtime](https://blog.dvx.ventures/signals/agent-controls-moved-into-runtime.md): Anthropic added hard session budgets and pre-inference policy hooks, GitHub put AI spend beside pull-request output, and OpenAI raised a cyber threshold. - [Signal 001 — The AI stack moved from models to operations](https://blog.dvx.ventures/signals/ai-infrastructure-gets-operational.md): A larger model got the headline. The more important changes happened in agent workflows, protocols, security, and regulation. ## DVx Signal — AI at Work The same weekly brief in plain language, for people who use AI at work rather than build with it. - [Signal 004 — Your spreadsheet became an app. Grok became a teammate.](https://blog.dvx.ventures/signals/spreadsheet-became-app-grok-became-teammate.md): Sheets canvas can become a working mini-app, Grok can build prototypes or keep a cross-app teammate running, and Meet can take notes in a physical room. - [Signal 003 — Claude marks its work. Gemini moves into the document.](https://blog.dvx.ventures/signals/chatgpt-can-find-table-reuse-file.md): Claude set global marking rules for supported model output, Gemini brought document-aware visuals into Docs, and Google Meet added explicit consent controls. - [Signal 002 — Free ChatGPT got more useful. Claude moved into Slack. Meet saved the slide.](https://blog.dvx.ventures/signals/free-chatgpt-claude-tag-meet-visual-notes.md): Free ChatGPT text chats expand, Claude Tag turns Slack into a shared AI workspace, and Google Meet notes can capture presented visuals. - [Signal 001 — Claude got smarter. ChatGPT got health records. Copilot got a task queue.](https://blog.dvx.ventures/signals/smarter-model-health-workspace-ai-takes-task.md): Three releases matter if you use AI at work. Here is what changed, what it costs, and what is worth trying. ## Field manuals Versioned, living operating guides. Each carries a version and a last-verified date; treat an out-of-date manual as evidence, not as truth. - [Field Manual 001 — The AI Workbench (v1.3)](https://blog.dvx.ventures/field-manuals/the-ai-workbench.md): Choose the right mode, tool, context, and level of autonomy for the work in front of you. - [Field Manual 002 — The Overnight Build (v1.0)](https://blog.dvx.ventures/field-manuals/the-overnight-build.md): Prepare a complex software task so an agent can make safe, verifiable progress while the team is away. ## Resources Prompts, skills and packaged kits referenced by the writing above. - [AI as a Personal Practice — Sundance Skills (Skill set)](https://blog.dvx.ventures/resources/sundance-skills.md): Ten Claude skills plus a guide from The Health Summit · Sundance '26 — a daily AI operating loop you can mount in Cowork today. ## Optional - [llms-full.txt](https://blog.dvx.ventures/llms-full.txt): every note, Signal issue, field manual and resource on this site concatenated into one Markdown document - [RSS feed](https://blog.dvx.ventures/feed.xml): the 50 most recent items - [Sitemap](https://blog.dvx.ventures/sitemap.xml): every indexable HTML page - [DVx Ventures](https://dvx.ventures): the venture studio behind this publication