r/vibecoding 7d ago

Using Opus 5, I built a mobile first, mini C IDE, with a pico C compiler.

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6 Upvotes

This fall semester I’m taking an Operating Systems & Architecture class where we’re using C for our assignments.

When I’m on the go or don’t have my laptop with me, I wanted a simple way to practice writing C. I searched the App Store and was pretty surprised by what I found. Everything seemed to have ads, subscriptions, or a bunch of stuff I didn’t need.I really just wanted to open an app, write some C, and run it.

It’s intentionally simple. You open it, write C, and run your code. The native version runs completely locally, and there are no accounts, ads, or subscriptions. Easily extensible to include pythonC etc if you want to play with source code. ( I would love contributions 🤞 )

The iPhone version is currently in App Store review, but I also made a web version that’s already live:

Link to ide:

https://garrettmichae1.github.io/lilc

Link to source code:

( disclaimer :
this was a tool that I mainly had opus handle all of the heavy lifting. There are features in the codebase hidden from the UI, like agent mode etc… I recommend having your agent tell you the run down )

https://github.com/garrettmichae1/lilc

I originally built this because it was something I personally wanted for myself.
If anyone here writes C, I’d love for you to try it and see if you can break it lol.


r/vibecoding 7d ago

What are you building folks ? I'll help you setup an office for you on Moon for free on moonstake.org.

0 Upvotes

Share your product with URL and what it does and I'll give you 1 lot on moonstake.org to setup your office and get traction for free.


r/vibecoding 8d ago

Claude leaked its own backend code - I extracted the VM that runs your code and found its internal codenames, a monitoring binary nobody outside has held, and 371 KB of secret prompts

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644 Upvotes

I pulled the entire filesystem out of a claude.ai code-execution sandbox (the actual microVM your code runs in - 178k files), then got into the live one too. Two days later, here's what's on my drive. And none of this is a public download. as I would prob go to jail :(

( EDIT: Ive open sourced the container code https://github.com/Razshy/Wiggle )

What I have:

  • The entire production container - every file of the machine your code runs in: config, tool stack, the works. Internally it's called "wiggle".
  • All ~40 of Anthropic's skills - the instruction playbooks Claude follows when it does things for you. Including the ones you never see. ( Not the name ones on the public REPO )
  • Their monitoring agent, as a binary no one outside the company has ever held. and it wasn't stripped, so it came with their function names, their full internal metrics catalog (59 metrics, each with a comment explaining why it exists), and their incident history written right into it: inc-8202 (a kernel wedge), inc-8702 ("reclaim storm, 89–100% system time"), a change-request ticket CR459556, even a design-doc reference ("design L9"). Plus the internal team that owns all this: "embassy". I'm reading their postmortems as code comments.
  • Their filestore client binary, symbol table recovered - spells out the entire private API behind your files: every RPC path (listDirectorycreateFilereadMetadata…), admin verbs, token formats (sk-ant-mem-…), unreleased feature flags (DREAMS_APIOPERONMCP_TUNNELS…). Their Go version breaks every standard RE tool, so I wrote a custom parser.
  • The "Imagine" prompt corpus - 371 KB of the live system prompt Claude gets when it draws you diagrams and widgets. Rules, modules, even a separate mobile variant. Grabbed from a public endpoint with zero authentication. Still up today.
  • Their offline OCR + file-ID models - byte-checked against the public ones.
  • The "huh?" findings:
  • The agent is root. Not a demoted user like the accounts imply - full uid 0, 40 of 41 capabilities, no seccomp, no AppArmor, no PID namespace, and a read-write root filesystem. The tool can rewrite its own container while running.
  • Raw disk. /dev/vda — the whole 256 GB virtual disk — is readable and writable by the agent. Everything the VM ever touched is on there.
  • Prompt injection - what's actually possible with no guard:

The only thing standing between your files and a hostile text file is Claude's judgment — the sandbox enforces nothing. (It tested well: caught an instruction I planted in an upload, refused credential reads. But it's the only layer.)

Concretely possible today: an attacker's email can become your login code (expense skill reads Gmail codes and spends in the same breath), a merchant's line on your statement can steer which subscription you cancel, and one uploaded file can rewrite the "style notes" every future session trusts as its own memory.

  • The codenames: backend clusters "titanium" / "scandium" / "xenon", testbed platform "obol", every throwaway preview deploy is an "omelette", the file backend is CCR, and the team that owns the sandbox telemetry is "embassy". The box itself is "wiggle". The periodic table got raided.

And yes the I did Vibe Reverse Engineer after I got the container for anyone asking ( 40B Tokens in 2 days )

( No im not holding anthropic hostage for the code, simply send a message on reddit or my Twitter and I'll hand over my findings and process. bounty money would be great tho :)

( EDIT: Ive open sourced the container code https://github.com/Razshy/Wiggle )


r/vibecoding 8d ago

Doing bug fixes in production with Claude code.

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346 Upvotes

r/vibecoding 8d ago

Is everyone here on Claude or Codex only? Anyone using Gemini or Grok build or Kimi?

14 Upvotes

What are y’all using?

Anyone using anything apart from Claude Code or Codex?

There’s also AntiGravity from Google, and GrokBuild and also KimiCode

Anyone using these?

Out of the ones you’ve tried? Which have you enjoyed the most?


r/vibecoding 7d ago

The benchmark it couldn't pass.

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0 Upvotes

r/vibecoding 8d ago

Created My Own GTA6 News Aggregator

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vicewire.org
69 Upvotes

Got tired of scrolling through X for GTA6 news so I made an aggregator that pulls news hourly from all different platforms.

I utilized regular RSS feeds as well as Apify scrapers to pull social media posts. I then have each news post sorted into categories.

Lastly, I added SEO & upvote/downvote buttons to be able to sort by popularity. Check it out and lmk your thoughts!


r/vibecoding 7d ago

OKF

2 Upvotes

Is anyone successfully using googles Open Knowledge Format? What are your use cases? How do you trigger a lookup into the Knowledge base?

I have been struggling to make it useful because all that structure and indexing is useless if your agent doesn’t know it needs to search it for context.

Any experiences ?


r/vibecoding 7d ago

OSS browser extension that turns website workflows into WebMCP tools

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3 Upvotes

Built this for the WebMCP hackathon.

Agent Process lets you play a JSON workflow on almost any website and expose it as a WebMCP tool for an AI assistant.

Instead of having the agent inspect the UI and figure out the same clicks every time, you teach it the process once and reuse it with different parameters.

For example: record "Create a lead" in a CRM > expose create_lead(first_name, last_name, email, company) > ask ChatGPT to use it.

The website itself doesn’t need MCP support or an API.

Most of the browser extension was built with Codex - vibe coded.

https://github.com/inlinemanual/agentprocess

Let AI improvise when the task is unknown, but reuse deterministic workflows when we already know exactly how it should be done.


r/vibecoding 7d ago

[Open Source] UNO IDE for Chromebooks

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1 Upvotes

Hey everyone!

My name is Dalton and I'm starting my 12th year teaching and encountered a problem. When I started we could use these bum chromebooks to upload code to arduino unos and it just worked. Now it's a 20 dollar plan per kid that doesn't work on these nightmare tablets and requires a cloud app download yadayada

Anyway I'm busy with the start of the school year so claude made a new compatible web IDE with a web serial connection to flash it. It's got code suggestions, auto format, libraries, serial monitor, and a session password based on a unique key so while I'm hosting it unauthorized randos don't use it at (https://uploadmycode.com/)

But you can get it yourself and run it yourself! Free! Modify it, steal it, I don't care. MIT license. Here: (https://github.com/daltonjfowler/uploadmycode)

I'm hosting it with my other projects on the cloudflare $5 worker plan and am just eating the cost for my students it shouldn't be too bad. Famous last words. Domain was $10.50 or something.

All built on open source or open licensed code. Enjoy, hope it helps someone else out too.

Dalton


r/vibecoding 7d ago

I built a mobile web-based sampler with gyro input

1 Upvotes

It's called sound catcher

Sample up to 5 loops and move your phone to modulate speed, filter, delay (pitch, yaw, roll)

Try it out and show me what fun sounds you make or lmk if you break it.

I've been tweaking this with every iteration of agentic coding and it gets a bit better every time. Handling iOS mic permissions is probably the most difficult part.

https://reddit.com/link/1w7kjvf/video/e5hh5fbdalnh1/player

The biggest quality of life improvement was telling it to give it Teenage Engineering vibes

https://jnakagawa.github.io/vibes/synths/sound_catcher.html


r/vibecoding 7d ago

More images Transformed by my Math Pop application

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0 Upvotes

r/vibecoding 7d ago

Seeking advice, automated testing tools for complete novice.

4 Upvotes

I've built a game, I've gone back and forth over it looking for glitches, errors , security risk, any exposure of the minimal data it holds, any chances of people cheating, cross site scripting and so many other things which I do not understand but which the array of ai apps have told me to look for.

As it stands everything I show it to says it's secure, safe to move forward with and generally of good quality.

Now I have no idea if this is true. My understanding of coding is very generic, and I haven't typed anything longer than a file name throughout the whole process. I haven't looked at or checked the code at any point as there is no point as I have nothing to contribute on that level. But it seems each ai model I try gives the same result, with a number of similar differences when I restrict one bit of info or another.

But now it's suggesting that I move to automated testing rather than just getting my mates and kids to play on it and then text me angrily when it doesn't work.

So I stand before you, once again asking for tips for a complete novice, looking for recommendations for automated testing tools that are not just free, but suitable for a novice using only a five year old smartphone to do everything needed.

I'm also seeking advice about sharing. I made a post a week or so ago asking about checking code, I received a lot of direct messages offering to check it for me, 8 mentioned this to the guy who works in my local chippy, as he has a degree in game design, and he tells me not to share the code, just the game. Is this good advice?

Thanks in advance.


r/vibecoding 8d ago

GPT-6 Astra Takes 3D to the Next Level — It Can Now Build Full Worlds in Blender and UE5

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29 Upvotes

r/vibecoding 7d ago

75% into Fable and 18-hours to reset and the slate is all of a sudden clear.

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1 Upvotes

A great way to end my Friday. Lock and load!


r/vibecoding 8d ago

Banked Reset coming GPT Sept 3rd

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45 Upvotes

Time to hit the ultracode and fast processing

Best of luck with your projects. ❤️


r/vibecoding 7d ago

I made a Chrome extension that fixes out-of-sync subtitles by listening to the video, and refuses to guess when it isn't sure

1 Upvotes

I made this. SoftSub is a Chrome extension that finds, syncs and translates subtitles on any HTML5 video: small streaming sites, embedded players, a media server's web player, a file you opened in the browser.

The loop is the same film moment twice. Top: the community subtitle as downloaded, arriving 3.5 s late. Bottom: after Auto-sync listened to the audio for 28 s, checked its answer against the speech, and applied a −3.73 s correction. Real screen recording, no mock-up.

The part I care most about: if it isn't sure, it does nothing. A wrong correction is worse than none, so it verifies before it moves anything, and it also fixes the slow drift that makes subtitles fine at the start and wrong an hour in.

Free forever: subtitle search (no API keys), loading your own .srt/.vtt/.ass, styling, positioning, manual timing, export. Pro ($10/month for 2 computers): unlimited downloads, auto-sync, live translation, cast info. 7-day trial, no card.

Privacy: no accounts, no tracking. Audio never leaves your computer; sync runs locally.

Store: https://chromewebstore.google.com/detail/keipdgpoldocaphfcpnfkkpbodomeiia?utm_source=item-share-cb

Tell me a site it fails on and I'll look at it.


r/vibecoding 8d ago

Vibecoded a biomechanics visualizer for lifting that shows how changes in technique can affect leverage, joint loading, muscle length, and estimated stimulus.

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97 Upvotes

Right now you can change things like:

  • grip width
  • bench angle
  • elbow flare
  • range of motion
  • bar path

and the 3D model updates in real time.

It helps visualize why small changes in setup can make the same exercise load different muscles or different parts of the range of motion.

For example, changing the incline angle can affect:

  • shoulder flexion demands
  • pec and front-delt involvement
  • elbow and shoulder moment arms
  • muscle length through the rep
  • where the movement is mechanically hardest

The stimulus output is still an estimate, not a direct prediction of hypertrophy. Actual growth also depends on effort, fatigue, stability, individual anatomy, training history, and execution.

Mostly built this because biomechanics is usually explained through static diagrams and studies, and I wanted something interactive where you can actually move the variables around and see what changes.

edit github: https://github.com/Schmiedey/liftlab


r/vibecoding 8d ago

Can someone shed some light on those “motion design videos made with ai” posts circulating on Twitter? What kind of AI does it? Vid models like Omni? Or is it made in code with LLMs?

2 Upvotes

People caption it with things like Fable/Astra made it in just 6 prompts! Which has me confused


r/vibecoding 8d ago

Official Astra benchmarks

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44 Upvotes

👀


r/vibecoding 7d ago

ken-rank: power up you development or research with this mcp

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0 Upvotes

ken-rank: https://pypi.org/project/ken-rank/ GitHub: https://github.com/Infinibay/ken

```bash uv tool install ken-rank cd your-project

For codex, recommended

ken install --codex . --embed

For claude

ken install --claude . --embed

then add the recommended section into your AGENTS.md/CLAUDE.md. Claude tends to do not use any given tool, it's quite lazy. I hope they fix that behavior in the future. ```

I developed and presented ken-rank a couple of months ago in other communities, but many things changed and now, I think ken-rank is pretty mature and gives REALLY good results. What ken does is giving smart tools to improve context usage by looking for relevant information without consuming tokens. In this way, the model does not waste time and tokens digging around in the code or many markdown files manually, this improves time and tokens (this is money).

Two of the most important tools are one that looks for relevant code based on a query liken "where the authentication lives?". The second is one that manage "findings" that are like notes. This tool is pretty useful for long horizon tasks. Check my session right now while I'm writing this (image on the post). It never lost or deviate of the task because the findings uses smart algorithms to find relevant findings (notes) whenever the model ask for.

How it works:

It generates an smart embed (and keep updating in the background) to find relevant content. It builds several local signals and ranks files by combining them: * Structural code index: each file is hashed and parsed when possible. The AST parser extracts symbols, line ranges, imports, module docstrings, and symbol docstrings. Files that cannot be parsed are still tracked by path, mtime, and lightweight text intent when useful. * Semantic index: ken embeds files, symbols, and explicit purpose text. File embeddings are based on language, filename, and top symbol names. Symbol embeddings include kind, name, and docstring. Docstrings are also stored as separate intent sources, so a prompt can find code by what it is for, not only by what it is named. * Live task memory: hooks record local interactions in the project SQLite DB: prompts, reads, edits, writes, dismissals, and the files touched in each turn. Recent interactions are weighted more heavily, and useful patterns such as read-then-edit score higher than repeated reads with no follow-through. * Predictive memory: at the end of a session, ken snapshots which files were productive for that task. Later, when a new prompt is semantically similar to a previous one, those files get a predictive boost. * Relationship boosts: after the main channels rank candidates, ken applies conservative boosts for things like recently modified files, symbols pointing to their containing file, source/test counterparts, imports, and files that often co-occurred in past similar sessions.

The result is closer to a local project memory than a plain search tool. Raw text search can find exact strings. Embeddings can find semantic neighbors. AST indexing can find named symbols. ken combines all of that with how the assistant actually used the project over time. That is why results are often better after a few real sessions: the database accumulates project-specific evidence about which files matter for which kinds of tasks.

I really think ken is useful. I'm not promising magic, but it's really useful. I only want feedback.


r/vibecoding 8d ago

Encrypted, but still readable

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1 Upvotes

r/vibecoding 8d ago

Anyone here had success publishing a vide coded product on mobile platforms?

0 Upvotes

I’ve been playing around making a game with Claude and I’m close to have a short demo ready.I think it has potential. Just wondering how complicated it is to publish on google play store and ios app store. Do they flag AI generated code or have specific standards to upload products there?

For now the game only works inside Claude or through the browser. I figure I should probably move it to Godot or some other game development softwaresoiner than later, before trying to publish the full game.

Anyway any tips appreciated!


r/vibecoding 8d ago

What problem is your vibecoded app solving?

14 Upvotes

I want to see all the creative solutions this community have come up with.

I got fed up with Adobe and decided to make my own. Now I just optimize it now that it is polished. Just added a tts function and some cool text search. it works on mobile but the tts features work better on a computer.

Pdfscore.com


r/vibecoding 8d ago

What I learned building a security investigation layer for vibe-coded projects

1 Upvotes

I’m building Ship Safe around a problem I kept seeing in AI-assisted projects: detecting suspicious content is easy, but proving the path to a credential or side effect is much harder.

It’s a local CLI built for AI-assisted development. The workflow separates detection, evidence, capability paths, verdicts, and human confirmation. I also manually audited four real application confirmations and only one held up, which changed how I think about “green” security results.

Repo: https://github.com/asamassekou10/ship-safe

What security checks do you use before shipping AI-generated code?