AI Agents + Online Tools + Browser Extensions
Technical articles on AI and development, online tools that run in your browser, and downloadable browser extensions.
$ ls ~/kevin ├── blog/ tech posts ├── tools/ 18+ tools ├── projects/ extensions └── chat/ AI chat $ whoami kevin — developer & AI tooling enthusiast
AI News
Latest AI industry news and trend analysis
The Mythical Fable 5.1 Is Here!
Anthropic's Claude Fable 5.1 and Mythos 5.1 achieve commanding benchmark leads while cutting prices — the Claude twin models officially enter scientific research.
250 Years of History: How Far Is the AI Capex Bubble From Bursting?
A historical review of 250 years of U.S. capital expenditure cycles to assess where the AI investment wave currently stands and how far the bubble is from bursting.
2026 AI's Top 10 Trends: From Competing on Models to Competing on Real-World Deployment
Tencent Research Institute's 2026 AI Top 10 Trends report — the center of gravity is shifting from parameter count to deployment-side engineering, business outcomes, and organizational adaptation. Three chapters (Evolution / Landing / Restructuring) covering online evolution, multimodal cognition, AI for Science, harness engineering, trusted execution, citizen development, intelligence-as-a-service, the agentic web, liquid organizations, and role reconfiguration.
Featured Posts
Recent thoughts and technical deep-dives
Modeling a Game Character with Codex + Blender: A Step-by-Step Walkthrough
Using the Blender MCP server to let Codex drive Blender directly — installing uv, wiring up MCP, breaking a character down into a verifiable feature checklist, and accepting the final asset by mesh count, structure, materials, scale, and file format.
I Built a 3D Game You Can Build, Shelter, and Defend In with GPT-Astra + Three.js
From a one-line idea — a woodland building game — to a fully playable browser world: how I used GPT-Astra as a continuous design, implementation, testing, and fixing partner to build Wildwood, complete with construction, furniture, day/night weather, pathfinding, monster raids, and local saves.
From Vibe Coding to Spec Coding: Building a Project-Level AI Workbench with Trellis
Vibe coding is great for throwaway scripts, but left unchecked it turns real projects into unmaintainable messes. Trellis practices spec coding by persisting project rules, task progress, and working memory into .trellis/, fixing session amnesia, tool lock-in, and the lack of a project-level feedback loop.
Online Tools
Open and use — data never leaves your browser
US Mortgage Calculator
Pure client-side mortgage calculator: P&I, property tax, insurance, HOA, PMI, extra payments, 15/20/30 year comparison and amortization schedule. Data never leaves your browser.
Scientific Calculator
Free online scientific calculator: trigonometric functions, logarithms, exponentials, factorial, power operations, parentheses, history, and memory — pure client-side, nothing leaves your browser.
Currency Converter
Free online currency converter covering 166 currencies, rates cached hourly.
JSON Formatter / Minifier
Parse, format, and minify JSON — pure client-side, never uploaded.
Unix Timestamp Converter
Convert between Unix timestamps and dates, seconds or milliseconds.