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I put together a small, unofficial public ledger that records dated snapshots of the public pricing, usage limits, and rate limits of a few AI coding tools — currently Cursor, GitHub Copilot, and Claude Code — and keeps the history so you can see what changed over time. Why: pricing and quota pages change in place. The old value disappears from the live page and there is usually no public diff. If you are budgeting a team or comparing tools, the history is the useful part, and it is the part the live pages do not keep. What it is / isn't: - It records only factual public values (a price, a numeric limit) plus a short source attribution and capture date. It does not reproduce vendor pages. - "silent" / "quiet" here means only that a change was not paired with a prominent announcement when it was recorded. It makes no claim about any vendor's intent. - Unofficial. Not affiliated with any vendor. The vendor's official page is always authoritative. No affiliate links, no "best tool" ranking. - Early stage: this is an initial snapshot; a daily automated capture is planned but not yet running. Repo: https://github.com/pricing-ledger-lab/ai-coding-tool-pricing-ledger Corrections welcome — open an issue with a source URL and the date you observed the value.

As a developer, I regularly find myself searching for small online utilities. Format some JSON. Decode a JWT. Test a regex. Generate a UUID. Convert a timestamp. Format an SQL query. Calculate a CIDR subnet. None of these tasks individually justify installing another application. But over time, I ended up with a collection of bookmarks to different websites, each solving one small problem. There was also another issue: privacy. Sometimes the data I'm working with isn't something I necessarily want to paste into an unknown third-party website. So I decided to build an alternative. The constraint: one HTML file I wanted the entire application to exist as a single file. No backend. No npm install. No CDN dependencies. No external API calls. No account. No telemetry. You download the HTML file, open it in a modern browser, and everything runs locally. The final file ended up at approximately 133 KB and contains 31 developer tools. What's inside? The tools are organized into six categories. Encode / Decode JSON Formatter & Validator Base64 Encode / Decode URL Encode / Decode HTML Escape / Unescape JWT Decoder Number Base Converter Generators UUID Generator Password Generator with entropy estimation Hash Generator Slug Generator Lorem Ipsum Generator Random Data Generator Converters Timestamp Converter CSV ↔ JSON JSON ↔ YAML CSS Unit Converter Case Converter Cron Expression Parser CSS Tools Color Picker & Converter Gradient Generator Box Shadow Generator Border Radius Generator CSS Filter Generator Text Tools Regex Tester Markdown Preview Text Diff Character Counter Text Sort & Dedupe String Inspector SQL Formatter Network Tools IPv4 Address and CIDR/Subnet Calculator Everything happens inside the browser. Making a single HTML file feel like an application I didn't want the result to feel like 31 unrelated forms dumped onto one page. So I added some application-level functionality. There's a Ctrl+K / Cmd+K command palette for quickly jumping between tools. The sidebar org

Suspect-condition workflows are deceptively simple to prototype and surprisingly hard to make defensible . Anyone can flag "this member might have HCC X." Building a system whose output survives a RADV audit is a different problem. This is a walkthrough of the three stages and the engineering decisions that matter at each. Stage 1: Identify Identification is pattern detection over a member's clinical record — labs, medications, prior diagnoses, utilization. Model it as a set of rules or features that emit candidate HCCs: def identify_suspects ( member ): suspects = [] if member [ " labs " ]. get ( " a1c " , 0 ) >= 9.0 and " insulin " in member [ " meds " ]: suspects . append ({ " hcc " : " HCC38 " , " trigger " : " a1c>=9 + insulin " }) if member . get ( " egfr " ) and member [ " egfr " ] < 30 : suspects . append ({ " hcc " : " HCC326 " , " trigger " : " egfr<30 " }) return suspects The temptation is to maximize recall here — flag everything. Resist it. Every unvalidated suspect you generate is downstream work and downstream risk. Stage 2: Validate (the stage that actually matters) Validation attaches evidence to each suspect and scores its defensibility. This is the difference between a documentation opportunity and an audit liability. def validate ( suspect , member ): evidence = collect_evidence ( suspect [ " hcc " ], member ) # labs, rx, prior dx suspect [ " evidence " ] = evidence suspect [ " confidence " ] = score_evidence ( evidence ) suspect [ " defensible " ] = suspect [ " confidence " ] >= 0.7 return suspect Key design rule: a suspect with an empty evidence array should never reach a coder. Make that a hard gate, not a soft warning. Under CMS-HCC V28 and current audit posture, a captured-but-unsupported diagnosis can be extrapolated across a contract into a real clawback — so "defensible by default" is the right engineering stance. Stage 3: Capture Capture routes validated suspects to the right human with the evidence inline, so the clinician or coder can

In my previous post about a cost budget advisor , I built a mechanism that checks how much quota is left before it runs anything. This time I want to take that idea one step further: instead of cycling a single Codex through jobs one after another, run several of them at the same time as a swarm. I'll walk through the actual code for a three-layer protocol where workers declared in plan.json are expanded by orchestrate-worktrees.js into a tmux session plus git worktrees, so each Codex runs in parallel without interfering with the others. The problem: running Codex serially on the same branch When you run Codex jobs one after another on a single repository, you hit issues like: A commit from the previous job changes the preconditions for the next one Task B keeps waiting until Task A finishes When a conflict happens, the "which change is correct" decision bounces back to a human Separating branches with git worktree reduces the conflict risk to zero. Combining that with tmux to launch everything in parallel is the design for this post. The big picture: a three-layer protocol plan.json ← declaration layer (what goes to which worker) ↓ orchestrate-worktrees.js ← orchestrator layer (creates worktrees, launches tmux) ↓ orchestrate-codex-worker.sh ← worker layer (runs Codex, writes artifacts) The orchestrator doesn't know about the workers, and the workers don't know about each other. Artifacts are consolidated into three files under .orchestration/{session}/{worker_slug}/ . File Role task.md Work instructions for the worker (generated by the orchestrator) status.md State: not started → running → completed / failed handoff.md Codex output + git status (written by the worker) Declaring the plan in plan.json { "sessionName" : "refactor-sprint" , "repoRoot" : "~/my-project" , "worktreeRoot" : "~/worktrees" , "coordinationRoot" : "~/my-project/.orchestration" , "baseRef" : "HEAD" , "replaceExisting" : true , "launcherCommand" : "bash ~/.claude/scripts/orchestrate-codex-worker

How I Built a Block Puzzle Game with React Native and Expo A few weeks ago, I launched my first mobile game — a block puzzle called Blockbeam. It's an 8x8 grid where you drag colorful blocks, fill rows and columns, and chase high scores. Simple concept, but building it taught me a lot about React Native's capabilities beyond typical CRUD apps. Here's what I learned. Why React Native for Games? Most mobile games are built with Unity or native code. But for a 2D puzzle game, React Native is surprisingly capable. The game doesn't need 60fps 3D rendering — it needs gesture handling, state management, and smooth animations. React Native handles all three well. The key stack: Expo SDK 54 — managed workflow, over-the-air updates, zero native config react-native-reanimated — 60fps drag animations react-native-gesture-handler — PanResponder for drag-and-drop react-native-svg — block rendering AsyncStorage — game state persistence The Puzzle Engine The core of any block puzzle is the board state. I used a flat 64-element array for the 8x8 grid: const BOARD = 8 ; const CELLS = BOARD * BOARD ; // 64 type Board = number []; // 0 = empty, 1-7 = block colors Piece placement is straightforward: check if all target cells are empty, fill them, then scan for complete rows and columns to clear. The interesting part was the "greedy solver" I built for the auto-play bot. It tries every piece in every position and picks the move that clears the most lines: for ( const piece of tray ) { for ( let r = 0 ; r <= BOARD - piece . h ; r ++ ) { for ( let c = 0 ; c <= BOARD - piece . w ; c ++ ) { if ( ! canPlace ( board , piece , r , c )) continue ; const score = simulateClear ( board , piece , r , c ); if ( score > bestScore ) { /* pick this move */ } } } } Drag and Drop with PanResponder The trickiest part was the drag mechanic. Each tray piece has a PanResponder that tracks touch position and renders a floating ghost. On release, it calculates the nearest cell position: const anchor = { col : M

I build a lot of side projects with AI coding tools. Mostly Claude Code. A few months ago I noticed something that kept bugging me. Every site I shipped looked the same. Same indigo gradient. Same default font. Same rounded cards with the same soft shadow. Then I started noticing it on other people's projects too. Demo days, launch posts, screenshots on social media. The indigo gradient is everywhere. It is basically a uniform at this point. This is not really the AI's fault. When you do not give a model a design direction, it picks the average of the internet. And the average of the internet is a Tailwind starter template with an indigo gradient and Inter. The model is doing exactly what it was trained to do. The problem is that nobody told it what you actually want. So I built tastemaker. It is a skill for Claude Code, and it also works with Cursor, Windsurf, and Codex. The idea is simple: lock the design system before the AI writes a single line of UI. Full disclosure before we go further: I built this. I am a solo builder. It is free and open source under the MIT license. I am posting it here because I want honest feedback, not because I have anything to sell you. There is nothing to buy. Taste first, code second A skill is just a folder of instructions the AI reads before it starts working. tastemaker forces a design decision step at the beginning, with real constraints, instead of letting the model improvise the look as it goes. When you start a UI project with it installed, this is what gets locked before any code exists: A palette. 5 presets, each matched to a mood. Not random hex codes. Combinations that were picked to work together. Fonts. 24 curated Google Font pairings. A display font and a body font that actually belong on the same page. Real assets. Illustrator-grade illustrations, recolored to your palette. No gray placeholder boxes. No generic stock photo energy. A logo. A constructed geometric mark, plus a full favicon set, so the tab icon is not th

You don't need to know anything about Go to read this. The game is just the fixed yardstick. The story is a hardware benchmark: the same program, the same problem, the same settings — only the machine changed, from a 2017 GPU cluster to a single 2026 graphics card. That makes it a rare clean measurement of one decade of progress. What "solving" means here There are two very different things a computer can do with a board game. It can play it well — that's what AlphaGo did. Or it can solve it: mathematically prove the outcome under perfect play from both sides, leaving no doubt. Solving is the hard one. You explore an enormous tree of "if I play here, they play there…" move sequences until you have an airtight proof. Each node in that tree is one position examined. The target here is a single 7x7 opening called JA . In 2023, a NeurIPS paper ( Game Solving with Online Fine-Tuning , Wu et al.) proved its verdict — the attacker cannot win — using a cluster of twelve GTX 1080Ti GPUs running 384 parallel workers. The solver is guided by a neural network that estimates how hard each branch is, and crucially that network is fine-tuned online — it keeps learning during the solve. I rebuilt that exact solver (same code, same problem, same initial model, same search settings) and ran it on one RTX 5090 . It reached the identical proof . Everything but the hardware was held fixed, so the two runs line up as a generation-vs-generation benchmark — and it doubled as a full shakedown of the new Blackwell workstation. The numbers 1x RTX 5090 (2026) 12x GTX 1080Ti (2017) ratio Worker slots 24 384 1/16 the parallelism Per-slot throughput 284 nodes/s 141 nodes/s 2.01x faster Search work to proof 1.01B nodes 1.73B nodes 0.59x (41% less work) Avg work per sub-job 4,189 nodes 6,136 nodes shallower proofs Live model updates 4,007 208 19.3x more Wall-clock time 41.4 h 8.9 h 4.64x slower Verdict loss (proven) loss identical The single card finished slower in wall-clock time (41 h vs 9 h) — b

The pipeline died at 5:07 on a Friday I still catch myself alt-tabbing back to the browser every time a pipeline breaks. Terminal, editor, browser, until I have hunted down the failing job and pasted a stack trace somewhere I can actually think about it. GitLab has made that dance a bit shorter. The Duo CLI reached general availability with GitLab 19.2 on July 16, 2026, and the pitch is simple: Duo Agentic Chat, in the shell you were already in. What actually shipped The short version, straight from the announcement: Duo CLI carries the Duo Agent Platform into the terminal, and your sessions travel with you. Start a plan in the CLI, keep it going in the web UI, pick it back up in an editor extension. Same context, same permissions, different surface. That continuity is the piece I care about most, because it stops me from re-explaining the same problem to the same agent three times in one afternoon. There are two shapes to work in. Interactive mode is the conversational one you would expect, with plan and build capabilities for iterating on a change. Headless mode is the one CI teams should look at, because it drops the same agent into a job or a script, no TTY required. Two built-in slash commands worth knowing on day one: /doctor for a setup check and /mcp to inspect the MCP configuration it is wired to. Two ways to install, one auth story The install decision is refreshingly small. If you already run glab , the GitLab CLI, then glab duo cli gets you moving and glab handles authentication for you. If you would rather have the agent as its own binary, you can install duo standalone and hand it a personal access token. Both paths reach the same tool. Both work on GitLab.com, Self-Managed and Dedicated, and admins get an instance-level toggle to switch access on or off for their org. The gating detail your finance-adjacent brain will want: you need Premium or Ultimate with the Duo Agent Platform turned on, and usage draws from the GitLab Credits already included with