# Frameworkr Blog > Insights on AI agent architecture, business systems, and the future of human-AI collaboration. Markdown versions of each post are available at `.md`. ## [What to Ask Your Developer (or Coding Agent) About Tool Calling](https://www.frameworkr.ai/blog/what-to-ask-your-developer-about-tool-calling.md) Tool calling is where your agent stops describing and starts acting — sending the email, updating the record, moving the money. Here's what to ask before you approve that, and which answers should worry you. _AI Agents · 2026-08-20_ ## [How to Set Up an AI Agent to Ask for Reviews and Reply to Them](https://www.frameworkr.ai/blog/ai-agent-ask-for-reviews-and-reply.md) Learn how an AI agent picks the right moment to ask a customer for a review, drafts a reply worth reading, and where you still approve the response yourself. _AI Agents 101 · 2026-08-19_ ## [How to Set Up an AI Agent to Answer "Where Is My Delivery?"](https://www.frameworkr.ai/blog/ai-agent-answer-where-is-my-delivery.md) Stop answering the same "where's my stuff?" text ten times a day. See how an AI agent reads each delivery question, checks the real status, and knows when to hand it to you. _AI Agents 101 · 2026-08-17_ ## [How to Set Up an AI Agent to Turn Voicemails and Texts Into Booked Work](https://www.frameworkr.ai/blog/ai-agent-turn-voicemails-texts-into-jobs.md) Turn the pile of voicemails and texts you get every day into scheduled work. See what an AI agent reads before it books, where a rule fails, and where you decide. _AI Agents 101 · 2026-08-16_ ## [How to Set Up an AI Agent to Handle Rescheduling Requests](https://www.frameworkr.ai/blog/ai-agent-handle-rescheduling-requests.md) When a customer asks to move their appointment, the right answer depends on your day. Here's how an AI agent reads a reschedule request and where you still decide. _AI Agents 101 · 2026-08-15_ ## [How to Set Up an AI Agent to Sort Inbound Leads Worth Taking](https://www.frameworkr.ai/blog/ai-agent-sort-inbound-leads.md) Learn how an AI agent reads a new lead, decides which jobs are worth quoting and which to decline, and where you still make the call yourself. _AI Agents 101 · 2026-08-13_ ## [How to Set Up an AI Agent to Chase Overdue Invoices Without Annoying Customers](https://www.frameworkr.ai/blog/ai-agent-chase-overdue-invoices.md) Your invoicing tool already sends reminders on a schedule. That's not an agent — and it's exactly why the reminders annoy people. Here's what an agent checks before it writes, and where the human still belongs. _AI Agents 101 · 2026-08-11_ ## [How to Set Up an AI Agent to Follow Up on Unresponsive Quotes](https://www.frameworkr.ai/blog/ai-agent-follow-up-unresponsive-quotes.md) A reminder sequence treats every silent quote the same. Most silences aren't the same — and the difference decides whether following up wins the job or ends it. _AI Agents 101 · 2026-08-09_ ## [How an AI Answering Service Can Transform Small Business Operations](https://www.frameworkr.ai/blog/ai-answering-service-for-small-business.md) Voicemail loses jobs and a scripted phone tree annoys callers. Here's what an AI answering service does differently when it can actually read the call — and what it must never promise on your behalf. _AI Agents 101 · 2026-08-07_ ## [What Is LangChain? The Original Agent Framework, Explained in Plain English](https://www.frameworkr.ai/blog/what-is-langchain-agent-framework.md) LangChain defined the category in 2022, survived the backlash, and rebuilt itself around agents. Here's what the ecosystem actually looks like in 2026, who it's for, and how it compares to newcomers like eve and Flue. _AI Agents · 2026-08-04_ ## [What Is Flue? The Astro Team's Open Agent Framework, Explained in Plain English](https://www.frameworkr.ai/blog/what-is-flue-astro-agent-framework.md) Flue is an open-source, deploy-anywhere agent framework from the team behind Astro. It hit 1.0 Beta in June 2026 and has since shipped 2.0, its first stable release. Here's what it does, how it differs from Vercel's eve, and what it means for anyone scoping an agent project right now. _AI Agents · 2026-08-01_ ## [Choosing an Interaction Surface for Your Agent](https://www.frameworkr.ai/blog/choosing-an-interaction-surface-for-your-agent.md) Chat, voice, or no conversation at all — an agent's interaction surface is a design choice that propagates into the rest of the architecture. Here's how to make it deliberately. _AI Agents · 2026-07-23_ ## [How to Build a Negotiation Agent (And Why the Hard Part Isn't the Model)](https://www.frameworkr.ai/blog/how-to-build-a-negotiation-agent.md) A negotiation agent is the clearest case in agent design where the model is the easy part. Here's the loop it runs, the inputs it can't function without, where the human belongs, and the failure modes you're actually designing against. _AI Agents · 2026-07-21_ ## [Loop Engineering: The Skill Nobody Tells Non-Technical Founders About](https://www.frameworkr.ai/blog/loop-engineering.md) The prompt gets all the attention, but the loop — think, act, observe, decide — is where an agent either does the job or doesn't. Here's how to engineer it in plain English, before any code exists. _AI Agents · 2026-07-19_ ## [What Is eve? Vercel's Agent Framework, Explained in Plain English](https://www.frameworkr.ai/blog/what-is-eve-vercels-agent-framework.md) Vercel released eve in June 2026 — an open-source framework it calls "Next.js for agents." Here's what it actually does, who it's for, and what it means if you're designing an AI agent right now. _AI Agents · 2026-07-17_ ## [What Is an AI Agent? A Builder's Guide (2026)](https://www.frameworkr.ai/blog/what-is-an-ai-agent.md) Not a definition — a walkthrough. See how an AI agent handles what automation can't: the messy, ambiguous, judgment-required moments that break every workflow you've ever built. _AI Agents 101 · 2026-03-04_ ## [Building Agent-Ready Business Systems: What Most Teams Get Wrong](https://www.frameworkr.ai/blog/building-agent-ready-business-systems.md) Most business documentation is written for humans. Here's how to build systems that work today and can be handed off to AI agents tomorrow — without rebuilding everything. _Business Systems · 2026-02-24_ ## [What Is an AI Agent Architecture? A Practical Guide for Builders](https://www.frameworkr.ai/blog/what-is-an-ai-agent-architecture.md) Agent architecture is the structural plan for how an AI agent reasons, uses tools, remembers context, and hands off work. Learn the five core layers, how eve, Flue, and LangChain each implement them, and how to design yours before you build. _AI Agents · 2026-02-10_