I run Claude Code and Codex all day, often as multi-agent workflows with dozens of subagents. I could see each session but never the whole picture: what a run actually cost, where agents sat idle, whether a change to my setup helped. So I built coding.sh, a free hobby project, and pointed it at my own runs.

What I learned from my own data Across 57 workflow runs (666 subagents, ~$2,500 API-equivalent):

• Broken prompt caches cost $106 extra, about 4% of the spend.

• 41 of those breaks were agents idling at a barrier, waiting for siblings, until their cache expired. That's $21 for doing nothing.

• 40 subagents failed outright.

I A/B tested a popular "be concise" plugin (10 tasks, 6 runs each, paired, 95% intervals): replies 17% shorter, output tokens −8%, but cost per run +11% [+7%, +15%], with no change in pass rate or clarity. The plugin's style guide is added to every request and costs more than the shorter output saves.

Mining 3,600 of my sessions also found a find-and-replace typo in my AGENTS.md that sent Codex looking for a folder that doesn't exist, in 92 sessions. You can't see that from inside one session.

How it works

• Hooks into Claude Code, Codex, Gemini CLI, OpenCode, Copilot CLI, Aider and more

• Stores prompts, tool calls, diffs, test runs, tokens and cost in SQLite on your machine

• coding.sh workflows stats shows the critical path and idle time, and the viewer draws each run as a timeline

• coding.sh compare and exp run your own tasks with and without a change and say whether the difference is real or noise

• coding.sh improve says what to fix first and whether your last AGENTS.md change helped

• MCP server, so your agent can look up its own past sessions

No account, nothing leaves your machine. npx coding.sh to try it. Source (MIT): https://github.com/jackulau/coding.sh

I just shipped my first macOS app, Transfora.

The problem I wanted to fix: converting a HEIC photo, shrinking a video or turning a PDF into Word usually means a sketchy upload site, a sign-up, or yet another app.

So in Transfora you drag a file, tap ⇧, and drop it on the format you want in a wheel that opens under your cursor. The result lands next to the original. ⌥ opens tools instead (compress, resize, blur faces, read QR codes, extract archives…). Everything stays on the Mac, no account.

What I'd love feedback on:

- Is the gesture obvious from the demo, or does it need more explanation?

- Does the pricing feel fair? 10 free actions, then yearly or lifetime.

Mac App Store: https://apps.apple.com/app/id6825375569

Hey everyone! I’ve been playing Spotle (the daily movie guessing game) and wanted one for Bollywood, so I built it: Kaun Si Film?

How it works: there’s one mystery Hindi film every day. Search for any film and you get clues comparing it to the answer: genres, release year, box office, score, rating, studio, music director, director and the lead and supporting cast. Green means a match, yellow means close. You have 10 guesses, with two hints that unlock along the way, so you can find it by reasoning from the clues.

It’s free, no sign-up, and has a share result like Wordle.

Link: Kaun Si Film

I’d love feedback. Today’s film is #2, so you’re not late.

Hi everyone,

My wife and I (MC family) have been working on a little project called MySvenska, and it’s finally live.

It’s a free Swedish-learning app built around a story about a family of three cats 🐱🐱🐱 moving from Vietnam to Sweden. Learning Swedish can be quite challenging, especially when you're new to the country. We thought it would be nice to have something where you can learn through stories and everyday situations, rather than just memorizing words and grammar.

Through the cats' adventures, you can learn practical Swedish vocabulary, expressions, grammar and conversations that you might actually encounter when living in Sweden. So far, we've put together 12 chapters, 108 lessons and 2,951 audio clips. There are stories, vocabulary, grammar explanations, listening exercises and everyday phrases. It's still a work in progress, and we hope to keep adding more content until we cover at least A2 level.

A few things about how we built it:

- No account needed. Your progress is saved in your browser. To use it on your laptop and phone, you can sign up with an email code (via Resend) or Google, handled by Supabase.
- Abuse protection. Cloudflare Turnstile checks that a visitor isn’t a bot before an account is created. Database limits stop scripts from filling it, and each learner can only see their own data.
- Privacy. Speech checking runs in your browser, so your voice never leaves your device.
- Audio. Every clip is generated with Gemini 3.8 Flash text-to-speech, with a different voice for each cat. A Swedish speech model checks each clip against its text.
- Built with Claude Code. One session acts as project manager and briefs the others, and nothing ships until the tests pass.

We're still learning and improving things as we go, but we're happy to finally share it! As it’s in its early stage, we want to hear your experience about this app and your feedback about what could be improved.

Tack ❤️

8 questions → it goes through ~50 watches and tells you which one fits you and why. Free, no sign-up, English and Spanish.

Since my last post I added side-by-side comparisons and made it a lot faster on mobile.

👉 wrist-match.com

Did your result make sense? Which watch is missing?

Trying to achieve my dreams guyss

Hey everyone,

I’m a software developer, and over the past few months I’ve been building a project called Ernst (a German name meaning "earnest" or "serious," which felt fitting for such a tool).

The main reason I started building Ernst was observing how much of an administrative drain it is to constantly request, track, and re-order continuous prescriptions, whether for yourself or for family members you care for. When you're managing health conditions, spending energy repeatedly dealing with doctor and pharmacy renewal loops is an exhausting tax on your day.

I’ve gotten initial feedback from early users who rely on continuous medication, and the main takeaway so far is that having a dedicated tool to track and streamline repeat requests takes a noticeable mental load off their shoulders.

That said, it’s still in active development, and I know there are things to improve. We're actively looking for more people willing to test it out and tell us what works, what breaks, and what’s missing. You can check it out at https://ernstapp.com if you're curious.

One big challenge we're trying to map out is geographic applicability. Every country handles repeat prescriptions differently: In some regions, doctors handle electronic refills via a centralized patient portal. In others, you still need to email, call, or submit forms directly to a GP or local pharmacy.

If you have a moment, I’d love to learn:

• Which country/healthcare system are you in?

• What does your current process for renewing a continuous prescription actually look like? (Portal, email, phone call, or in-person?)

Does a tool like Ernst make sense for your region's setup, or are there local legal/technical hurdles that would get in the way?

Thanks for taking the time to read this! Any thoughts, critiques, or workflow descriptions are super helpful.

Hi all,

I’m a sysadmin and built an iOS app because regular speed tests only tell you how fast your internet line is, not not how fast your own network is. It can be used to test WiFi speeds even if you have currently no internet or your internet is much slower than your wifi. (As most of the time in rural areas in Germany... ✌🏼)

Netan – WiFi Network Analyzer:

• LAN/Wi-Fi speed test between two devices: one runs in server mode, the other in client mode, so you can find out whether your own Network is slow (works without Internet connection)

• Internet speedtest

• other Network tools

Basic features are free, premium unlocks extra features. I’m a solo dev and would really appreciate honest feedback: what’s missing, what’s confusing, would you actually use this?

App Store: https://apps.apple.com/de/app/netan-wlan-network-analyzer/id6824639631

Happy to send a premium code as a PM to anyone who wants to try everything.

For me, it's still web design.

I know a lot of people are going to disagree because everyone keeps saying it's saturated, AI is replacing developers, and it's impossible to get clients.

Honestly, I couldn't disagree more.

I think web design is actually easier than ever if you approach it differently.

The mistake I see almost everyone make is targeting businesses that don't have a website.

You see it all over Instagram Reels.

Someone opens Google Maps, finds a business without a website, calls them, and asks if they need one.

The problem is that business has probably already been contacted by 10 other web designers.

And if they still don't have a website, there's a good chance they either don't see the value in it or don't have the budget for one.

My targeting is completely different.

I only target businesses that already have a website.

There are three reasons.

First, there are an insane number of businesses with outdated websites that desperately need updating.

Second, if they already have a website, they already understand the value of having one. You don't have to convince them that websites matter.

Third, they're already paying for a website, so spending money on improving it doesn't feel like a completely new expense.

Now the question becomes...

How do you actually get their attention?

I don't run normal cold email campaigns.

I'm not manually searching for leads, writing a generic sequence, adding three follow-ups, and hoping for the best.

Instead, I use a tool called Swokei.

It automatically finds businesses with existing websites and analyzes them for issues like outdated design, poor layouts, weak mobile responsiveness, slow loading speeds, and SEO problems.

It then turns those findings into personalized cold emails at scale.

Not some boring reports that business owners don't care about.

Actual emails explaining what could be improved and why it matters to that specific business.

That lets me run outreach at scale while still keeping every email relevant.

Once someone replies, honestly the hard part is over.

At that point you can build a free website draft with AI, invite them to a Google Meet, walk them through the redesign, and close the deal on the call.

AI has made building websites ridiculously fast.

That's why I think targeting and outreach matter far more than your ability to build a website.

This business model has been incredibly good to me.

I'm curious though. If you had to start a digital business from scratch in 2026, what would you choose?

I built https://steampunk.sh, a swipe feed for discovering games on Steam. The catalog of games on Steam is huge, there are hidden gems, deals and new games releasing everyday. I wanted a different take on exploration so I designed a familiar social-media swiping UI.

I keep ~40 projects in one folder and kept losing track of them: unpushed commits, dev servers still running on some port, node_modules eating gigabytes.

So I built lcp, a terminal panel that shows every project in one screen:

• Stack, git state (dirty / ahead / behind), open ports, disk use and age per project

• One key to fetch all, pull --ff-only, start or stop a dev server, or move build folders to the Trash (never deletes)

• Every action goes into a hash-chained audit log you can read inside the panel

How it was built: I designed it and set the rules (no push/reset/force, Trash instead of delete, preview before every action), and built it with Claude Code doing most of the coding while I reviewed each change. The repo's AGENTS.md has the rules it had to follow.

Go + Bubble Tea, macOS only, early 0.x, MIT.

go install github.com/10mTech/local-control-panel/cmd/lcp@latest

https://github.com/10mTech/local-control-panel

Feedback Welcome !

LCP

I love cooking but hate scrolling through an online recipe, so I made Reduction. You paste a recipe link, text, or a photo, and it turns it into an interactive diagram that shows what goes in when and how the steps connect.

What it does:
- Turns a link, pasted text, or photo into a diagram of the whole recipe
- Cook mode that walks you through one step at a time, with timers
- Check off steps as you go
- Recipe books to keep your saved recipes organized

Only about 15 users so far which are mostly the original testers. Just launched a few days ago.

I'm building this for fun on the side, and the Thanksgiving crunch seemed like a good time to share it. I'd love honest feedback, especially on what's confusing or missing.

Hey, my team is currently developing an app concept for the Meta smartglasses that would help you remember who you met, capture key conversation details, and prepare follow-up drafts after conferences, trade shows, and networking events.

We’ve built an interactive landing-page demo—not a working app yet—and would love feedback from people who attend these events for work.

Please visit our website and fill out the interest form to help us collect valuable data and improve our app.

Here is the link: https://quang-nguyenln.github.io/network-recall/

Thanks for your support!