DEVELOPER NEWS STREAM
Direct logs, engine updates, and framework notifications parsed from curated RSS feeds and announcements, updated hourly.
Programming CentralStreaming Browser Execution Video Feeds to Frontend React Components: The Ultimate Guide to Real-Time AI Agent Observability
As autonomous AI agents evolve from simple chat-based assistants into fully autonomous digital...
Gabriel AnhaiaAgent Memory in TypeScript: Short-Term, Long-Term, and What to Throw Away
Book: AI That Plans The series: AI in TypeScript — 5 books, from your first LLM call to agents in...
Gabriel AnhaiaYour First LLM Call in TypeScript Is Untyped — Here's the Fix
Book: AI That Answers The series: AI in TypeScript — 5 books, from your first LLM call to agents...
Gabriel AnhaiaCitations That Survive a TypeScript Refactor
Book: AI That Reads The series: AI in TypeScript — 5 books, from your first LLM call to agents in...
Eshaan AgrawalThe Cache Was Working. And Still Causing Duplicate API Calls
The Cache Was Working. And Still Causing Duplicate API Calls. The cache wasn't...
Parsa JiravandYou use `obj.hasOwnProperty(key)` to check property ownership. It can silently fail. `Object.hasOwn()` is the safe replacement.
Two real cases where `obj.hasOwnProperty(key)` throws or returns wrong results — and why `Object.hasOwn(obj, key)` is the ES2022 fix that ESLint's `no-prototype-builtins` rule has been nudging you toward for years.
ChristoYour LLM CLI's cost estimate is wrong in both directions - here's the field that fixes it
Most BYOK CLIs print a cost line after each call. Nearly all of them compute it the same way:...
Gabriel AnhaiaRe-Indexing a Live RAG System Without Breaking Your AI Assistant
Changing the embedding model means re-embedding everything. Doing it in place gives you a corpus in two vector spaces. The dual-write cutover, in TypeScript.
Gabriel AnhaiaHuman-in-the-Loop with LangGraph.js: Pausing a Graph for Approval
Book: AI That Plans The series: AI in TypeScript — 5 books, from your first LLM call to agents in...
Gabriel AnhaiaYour AI Agent Called the Same Tool 40 Times — Detecting Loops in TypeScript
A turn cap stops the bleeding after you have already paid for it. Detecting the four loop shapes as they form, and breaking them with information not limits.
Gabriel AnhaiaDebugging a Stuck AI Agent: Reading Graph State in LangGraph.js
The run returned instantly having done nothing. Reading the checkpoint, finding the node that never fired, and the four causes behind most stuck graphs.
Gabriel AnhaiaRate Limiting AI Agent Endpoints in Node When One Request Costs €2
Requests-per-minute is the wrong unit when one agent run makes thirty model calls. Limiting on cost and concurrency, and the queue that keeps it usable.
Gabriel AnhaiaThe AI Agent Permission Model You Need Before Production
Your agent runs as a service account that can do everything. Scoping its authority to the user it acts for, as a TypeScript capability set the tools enforce.
Gabriel AnhaiaMaking AI Output Reproducible in Node Tests: Seeds, Temperature, Top-P
Temperature 0 is not determinism. What each sampling parameter actually controls, why identical requests still differ, and how to test AI code anyway.
Gabriel AnhaiaResuming an AI Agent After a Deploy Killed It Mid-Task
SIGTERM arrives at step 14 of 20. What has to be true for the agent to continue rather than restart, and the schema-version trap on the way back.
Gabriel AnhaiaTime-Travel Debugging for AI Agents with LangGraph.js Checkpoints
Rewind a run to any step, change one thing, and replay from there. Turning a checkpointer into the only debugger that works on a nondeterministic system.