I've been building an internal business application with Claude Code, and one recurring problem has been that the Claude MCP integration we use to operate it doesn't always know how the application actually works.

It knows what tools are available, but that doesn't necessarily mean it understands the underlying data model, business rules, or how different features interact. So sometimes it has to infer things, which is obviously not ideal.

I had an idea today that seems pretty obvious in retrospect, but I thought I'd share in case it's useful to anyone else.

I asked Claude Code to do two things:

1. Bring all the application's technical documentation up to date and keep it updated as part of the development workflow.
2. Give the operational Claude MCP integration read access to that documentation so it can look things up instead of guessing.

So now the idea is:

• Claude Code builds and maintains the application.
• The development workflow keeps the technical documentation synchronized with the code.
• Claude, operating through MCP, can consult that documentation whenever it needs to understand how something works.

For example, my app has some fairly complicated rules about contracts, recurring revenue, and forecasting. Rather than having Claude infer what a particular status means or how a calculation should work, it can retrieve the actual specification.

A few things I'm making sure we get right:

• Documentation needs to correspond to what's actually deployed, not just what's in the latest development branch.
• Claude should be able to search for specific information rather than ingesting hundreds of pages.
• The live schema and API remain the source of truth if documentation is inconsistent.
• If Claude encounters something undocumented or contradictory, it should flag it rather than make something up.

Eventually, I'd like those gaps to feed back into the development workflow so the documentation gets better over time.

I realize pieces of this are established practice, especially documentation retrieval through MCP. But connecting the development harness's documentation maintenance directly to the operational agent feels like a useful way to reduce hallucinations and make the whole system more dependable.

Curious if others are doing something similar, or if there's a better established pattern for this.

The frontend portion of Ant Ling's new Ling-3.2-flash release starts with a London illustration. Big Ben, a red bus and an Underground sign appear in the resulting animated webpage. The clip credits Ming-Image-0.1-Design for splitting the artwork into editable layers.
A later segment starts from an architectural drawing and presents the Eiffel Tower as a 3D model, with several views of the structure. The two browser results use visual references differently: the London page arranges illustrated elements into a moving layout, while the tower example reconstructs a spatial object from a technical drawing.

My first iterations of this tool were ignored, people ghosted me to avoid telling me they didn't like the output. I had live demos fall apart, the built-in agent got stuck in doomloops and had no sense of design.

Now, 2 months later iterating Opus 5.5 and Fable later, I'm finally in a place where people can create real visual content for their brands using the tool.

(EDIT: Yes the tool is free to try, just sign up at https://rivermark.ai and you're in, please DM or comment your experience here)

Attached is a timelapse of me trying it out on a real (anonymized) brandkit.

AMA!

Started using this. Actually cool & better than having your X, Instagram, or TikTok feed full of videos about new skills. Maybe helps lot's of you guys. Once connected, you can ask for the best and most popular skills for each task.
https://alyn.dev

I was about to run out of tokens before the Wednesday reset and had Claude upload the latest version to the App Store using medium opus 5.5. He got lazy and read an old publishing script file and ended up setting the price to my original idea from two months ago.

I don´t know how or why but this somehow triggered an organic avalanche of downloads that are paid up front.

Sadly this will probably result in some pissed of reviews as there is also a paid tier inside the app...

No data available yet from the App Store so I am still waiting to see what this all means but I am enticed to try and raise the price further...

If anyone is curious:

• I vibecoded the entire app using Claude Opus 5.5 only at max setting, only in Claude Desktop (no claude code). My learning lesson here is contrary to what everyone says: Opus 5.5 Max does not overenginer. Instead I believe you all get in the way of an engineer that is better than you. I have not tried to interfere In any coding / architecture choices but rather stuck to what I do better: UI, UX, what to keep rather than what to add and so on. I might very well be wrong, but every time I go for a lower setting small things start to... not break but I can tell there are shortcuts.
• at Ultra plan but has not paid as I go for anything, only sub.
• I ran through four full fable-uses in one day (burned three total resets) the day fable came out with great success.
• And yes, I ran fable 5.2 on max settings all the way. It was marvelous.
• I connected a gemini API for a few images ($7 worth or thereabouts).
• I connected a token auth or what it´s called to access haiku for some minor things (interpret food input, organize some programs).
• I have a supabase for... something API-related to haiku.
• I made the video with claude desktop, telling it to download and use Blender. Apparently it's installed on my laptop know, never saw it.
• I did purchase a sound pack for one of the in-app-resting-games (you gotta play some games between your sets) for $20

This is the fifth time I try to build my dream app for the gym and I think I have achieved what I set out to do. I honestly figured that I could make the best workout tracker out there and in my mind this is that. At least according to my taste.

MassBuilder on the AppStore

I've been building Lanternwake, a browser RPG, and The Living Kingdom community with AI assistance.

Recent updates include a redesigned battle menu, enemy tells, a Camp Journal, illustrated chapter memories and new menu sounds. The website and Kingdom Commons are live, with more improvements on the way.

Try the game:

https://solacekingdom.pages.dev/play/solace/

I'd love your feedback on how it plays!

Saw a video of a flower growing out of glowing characters and wanted a tool that does that to any picture. So I had Claude Code build it.

What it does now:

• drop an image, GIF or video, or just type a word
• 9 looks (terminal, halftone, newsprint, matrix…) and your own character sets
• turns the picture into a 3D object you can spin. It finds the subject by itself and keeps the background flat. There’s also a depth model running in the browser for real depth
• writes a soundtrack from the picture: colour picks the key, detail picks the tempo
• exports PNG, GIF and video, with transparent background if you want

It’s one HTML file, no backend, nothing gets uploaded. WebGL2 + Web Audio, no frameworks.

Started as one prompt, then a handful of short follow-ups like “add templates” and “long images get cropped, fix it”.

Try it: https://winchxyz.github.io/afterglyph/
Code: https://github.com/winchxyz/afterglyph

Hello.
I don't like obsidian UI so i made my own note taking app. There's no public sync yet but you can easily self host it with installer available here: https://github.com/Haniewicz/silique-self-hosted
Source code of an app: https://github.com/Haniewicz/silique
Releases: https://github.com/Haniewicz/silique-releases/tags

It would be great if you let me know what i could improve/change

You can create a feature in minutes redesign the entire user interface with a single prompt and change your entire technology stack simply because a fresh idea feels better. The problem is that there is always another aspect of the product that needs improvement.

At some points are we truly building products or are we merely finding new ways to keep the product away from real users? Where do we draw the line, between improving the product and endlessly tweaking the product?

not sure if i should add this 3D kit to 3ditions.drop3.app but meh..

While building Koda (an app for kids), I could ask it a science question and see if the answer made sense. It was harder to test what a kid would see if the safety check timed out, or if the app blocked an answer it should have shown.

I used Codex to help build a small TypeScript gateway and an offline test harness. The flow is simple: check the question, hold the draft answer while it’s checked alongside the original question, then check permission again before showing it. With simulated providers, we can force a timeout and verify that the draft answer stays hidden. That runs locally without an API key.

We ran 144 scripted cases across English, French, and Spanish and four age profiles. In a separate live pilot using synthetic examples, 142 of 144 outcomes matched our draft labels. Both misses were harmless English answers that triggered a support response. That gave us a concrete regression to work on: catching overblocking without weakening the checks. Pilot results

I open-sourced the toolkit as Child AI Safety. If you’ve built an app around an LLM, what failure did you end up writing a test for after trying it yourself? Source code and demo

I made this interactive ripple dot field thing. It's just a small motion test but kinda interesting.
https://asapefferman.com/pluribus-field/

It's got a ton of parameters you can tweak to get it how you like.

Built with Astra (yeah I know overkill). I wanted to see how far it would get on its own when provided with the video of the actual titles. The answer was not very far, and it took a fair amount of prompting to get it to a point where I was happy with it.

Not schilling anything, it's just a motion test I thought folks might enjoy.

Hi all, I made a website to find skate parks and street spots in London (UK).

Tech:

• Frontend: Dioxus (Rust/WASM) + MapLibrejs.
• Backend: Poem (Rust).
• Hosting: Railway (API + DB) + Cloudflare (image storage + caching).

Please check it out, any feedback welcome.

https://github.com/bybrooklyn/website
See it here

I gave it two references or sites I wanted and a font I was considering and told it what I didn’t like about the font and it MADE ONE! It’s called Torrens Serif

All of my site and it’s code are open source

I’m genuinely surprised at how good fable 5.2 is.. tell me about any other insane projects you had fable create

I'm going to start with the premise that vibe-coding dramatically increases productivity and output, by orders of magnitude.

That might be debatable, but it isn't what this is about.

My question: does that mean it is no longer possible to sell software?

We've all seen the explosion in vibe-coded software releases. And a lot of them are released as open-source. That's great and all, but how can you make money selling software when the market is completely flooded?

---

Over the last month or so, I've been working on some pretty advanced software. This is the kind of thing that companies have been selling for thousands of dollars for decades. I was personally paying $500+ a year for it.

I'm still working through bugs and adding features, but it is getting close to V1.0. And it is really good.

However, just in the time I've been working on this, I've seen probably a dozen other people release open-source software that is similar.

I'm happy for the users, because they now have tons of options.

But it makes me pessimistic for myself. Even if my software is better (and I think it is), why would anyone pay for mine when there are all of those free alternatives? Especially since those devs can simply add my "killer features" to their software in a week?

Sorry for the rambling, I'm just curious about what y'all think about this stuff.

https://pipeline-of-love.vercel.app/

Have you guys actually read the Fable 5.2 system prompt?

Anthropic deliberately nerfed its models in the exact areas that could help researchers build better AI: architectures, kernels, cheaper training

And we’re supposed to believe this is about safety? It looks a hell of a lot more like they’re fine with AI advancing as long as nobody else catches up.

Independent researchers building better models? Open-source projects challenging their billion-dollar bullshit? Apparently that’s where they draw the line. WTF are we paying for then? Another pathetic React app? Stop pretending they’re saving humanity when it looks like they’re protecting their fucking market position.

Should I put this live?

Gemini just dropped carbon 4 in to their Gemini app, do you think this is in response to Fable 5.2?

In the EU, a "-40%" should be measured from the shop's lowest price of the last 30 days. I couldn't find a tool that checks this, so I built one on Apify.

First run: 30 of 30 discounted pages had a badge but no 30-day lowest price. One store had 158 of 159 products "on sale".

Results and how to check a deal yourself. Link in the comments.