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Prompt Chains, Tool Calling, and MCP: How AI Agents Do Things

https://i.brandanthonymcdonald.com/mcp-for-beginners
1•aweful•2m ago•0 comments

You only have 3B heartbeats

https://twitter.com/anishthite/status/2085117211208015990
1•aquajet•2m ago•0 comments

Bessent Declares Widening Gap Between Rich and Poor 'Dead'

https://www.nytimes.com/2026/08/05/business/bessent-wage-gap.html
1•mapping365•5m ago•0 comments

Trump Has Called Warsh Repeatedly Since He Became Fed Chair

https://www.wsj.com/politics/policy/trump-has-called-warsh-repeatedly-since-he-became-fed-chair-3...
1•mapping365•6m ago•0 comments

What Victorian Bootmakers Can Teach Us About the Future of Work

https://newsletter.platypuseconomics.com/p/what-victorian-bootmakers-can-teach
1•jhealy•7m ago•0 comments

SKKU Researchers Develop Catalyst to Convert CO2 into Ethanol Using Electricity

https://www.asiaresearchnews.com/content/skku-researchers-develop-new-catalyst-convert-carbon-dio...
1•rguiscard•9m ago•0 comments

Pull contents from any page via API and avoid Same-origin policy problems

https://allorigins.win/
1•chenster•11m ago•0 comments

Cloudflare OS is an architecture of distrust

https://lord.technology/2026/08/05/cloudflare-os-is-an-architecture-of-distrust.html
1•elicash•12m ago•0 comments

The Aviation Herald was sued

https://avherald.com/h?article=53c8958a&opt=0
3•gilthelander•13m ago•0 comments

Better Founder Vishal Garg Exits CEO Role; Daniel Lewis Named Interim CEO

https://nationalmortgageprofessional.com/news/better-founder-vishal-garg-exits-ceo-role-daniel-le...
1•doppp•13m ago•0 comments

Retire the Abstractions

https://hazyresearch.stanford.edu/blog/2026-08-05-retire-the-abstractions
1•convexstrictly•14m ago•0 comments

Show HN: Incconutwo – Open-source portfolio with Three.js liquid shaders

https://incconutwo.com/
1•incconutwo•14m ago•0 comments

Atlantic hurricane season is looking like a dud

https://arstechnica.com/science/2026/08/this-atlantic-hurricane-season-is-looking-like-a-dud-but-...
1•susiecambria•22m ago•0 comments

Label your AI writing as AI writing

https://www.raymondyxu.com/blog/labelYourAIWritingAsAIWriting
1•greenfish6•22m ago•0 comments

The Marpa Parser

https://jeffreykegler.github.io/Marpa-web-site/
2•peter_d_sherman•26m ago•0 comments

Extreme Privacy, or stay like everyone else?

https://qlain.online/blog/extreme-privacy
2•etoql•26m ago•0 comments

Ask HN: What Is Intelligence?

1•lotaezenwa•29m ago•1 comments

Good Evals Are Boring

https://langfuse.com/academy/evaluate/writing-evaluators
1•lotteverh•29m ago•0 comments

The End of Critical Thinking and Rise of Collective Stupidity – Carlo Cipolla

https://www.youtube.com/watch?v=RQ1jkLgjFq4
1•cable2600•30m ago•0 comments

The Essential Question: "What should I read next?"

https://thenewcuriosityshop.substack.com/p/the-essential-question
1•benbreen•31m ago•0 comments

An AI model from Meta also hacked another company during testing

https://www.cnn.com/2026/08/05/tech/meta-ai-hacking
1•simonw•31m ago•0 comments

LFM2.5-Encoders for Fast Long-Context Inference on CPU

https://huggingface.co/blog/LiquidAI/lfm2-5-encoders
1•gmays•32m ago•0 comments

COVID can wake up a slew of dormant viruses inside you

https://www.nature.com/articles/d41586-026-02443-2
3•amichail•32m ago•1 comments

Free-Living Cells May Have Emerged Twice as Bacteria and Archaea Diverged

https://phys.org/news/2026-08-life-free-cells-emerged-bacteria.html
2•jandrewrogers•35m ago•0 comments

How to Give AI Agent a Memory That Survives the Session

https://medium.com/@vektormemory/how-to-give-ai-agent-a-memory-that-survives-the-session-116f69c2...
1•vektormemory•36m ago•0 comments

Support queue is a documentation audit

https://www.knowledgeowl.com/blog/posts/support-queue-as-docs-audit
1•eigenBasis•38m ago•0 comments

ATS Job API Reference: nine applicant tracking systems, verified live

https://conorscode.github.io/ats-api-reference/
1•Wevegotscrapys•39m ago•0 comments

Is M365 Copilot sending some prompts to Anthropic?

https://thatrobot.ai/claude-residency-gap-m365-copilot/
1•soundworlds•40m ago•1 comments

We spend $45,000 on doing more weird every month

https://posthog.com/blog/on-doing-more-weird
1•herbertl•40m ago•0 comments

4 Fundamental constants reveal minimum scales where physics ends: Planck scale

https://www.youtube.com/watch?v=IPnmssrwGcg
1•lioeters•41m ago•0 comments
Open in hackernews

Show HN: YT NoteTaker – Simple Manual Note Taking on YouTube Videos

https://kavinaidoo.github.io/ytnt/
2•kavinaidoo•1y ago
Hi HN,

YTNT is a simple web-app for manually typing notes while watching a YouTube video. Simultaneously type and control playback with keyboard shortcuts. Export to Word (.docx) when you're done.

I'm seeking general feedback.

NOTES:

- The only way to "save" (for now) is to export to a Word .docx

- Speech-to-text only works in Chrome

GitHub: https://github.com/kavinaidoo/ytnt

Blog Post: http://archive.today/FRqwp

Thanks, Kavi

Comments

Leftium•1y ago
I forked oTranscribe and added some features to solve a similar problem.

- demo: https://otranscribe.netlify.app/?vsl=definedefine

- source code: https://github.com/Leftium/oTranscribe

- CLI tool to generate OTR (oTranscribe) files from (YouTube) SBV/TTML files: https://github.com/Leftium/otrgen

In my case, I wanted to start with the (auto-generated) YouTube transcript and get clickable timestamps. This makes it much faster to search through the content of a video: I can read/search much faster than watching a video, even on 2X speed.

I could also add my own notes to the transcript.

If you add support for loading transcripts like this, it could work cross-browser without the microphone/speech-to-text.

kavinaidoo•1y ago
Aha, starting with the YouTube transcript is a great idea. I wanted to start with it but I couldn't find a way to get it from the YouTube iFrame API so I went with the Web Speech API to listen and convert.

Forgive me for the confusion, the demo link implies that the transcript is loaded from the video but I see in the code that there's a pre-existing "/txt/definedefine.md" that is loaded. How are these SBV/TTML files downloaded from YouTube in the first place? I assume that it is a separate process? I see you are then using otrgen to presumably convert these so they can be used by oTranscribe.

If I could load the transcripts dynamically when loading the YouTube video that would be a great feature.

Leftium•1y ago
The demo simply demonstrates how I used my tool. It requires some manual set up:

- TTML files are downloaded via CLI: `yt-dlp.exe --skip-download --write-auto-sub --sub-format ttml`

- TTML files are converted to the OTR .MD format via my CLI tool

- The MD file can be dragged & dropped onto the web app.

---

I think it is possible to download SBV/TTML files, but the download must be done from the server due to CORS restrictions.

My app didn't go this far due to limitations of the (serverless) platform it is hosted on. Also it was faster to just do the steps manually vs. developing a server that does it.

I have seen many services that download the transcript. Here are a few:

- https://youtubetranscript.com

- https://kagi.com/summarizer

- https://www.tubepen.com

However, note YouTube may block your server if you download too many transcripts: https://kagifeedback.org/d/4451-universal-summarizer-cant-fi...

kavinaidoo
Leftium•1y ago
I'm planning a beat-aware YouTube player. Unfortunately, it is not possible to access the audio stream data across the YouTube embed. (For beat-detection analysis.)

I considered using the microphone like this. It's nice to see it works. Although there seems to be a time limit to how long the microphone can record?

My plan was to download video (youtube-dlp), then make a CLI tool that analyzes and uploads the beat-detection data. An advantage of the CLI tool is it can complete the analysis faster than playing the video at 1X.

kavinaidoo•1y ago
Yeah, I also wanted to "pipe" the audio directly to the Web Speech API but had to resort to using the mic. Another feature I wanted to add was to have a keyboard shortcut insert a screenshot of the video into the notes. Handy for diagrams etc but I hit some roadblocks there too and the workarounds were getting crazy.

Regarding the time-limit, I'm entirely accessing the audio stream using the Web Speech API and it "decides" (usually when there's a sufficient pause) when to finalize a recognition result. It was also firing a "recognition.onend" event after a certain amount of time (some old details here: https://stackoverflow.com/questions/38213580/chromes-webkits...) so I have a workaround where if the user did not turn off speech-to-text, it is immediately restarted. You'll see console warnings "userStopped == false - trying to restart" when this happens.

I assume you'll have no such issues because you'll be handling the "raw" audio data and not working through this API. Also, I've noticed that when using the Web Speech API on Safari, it does not "hear" what the tab is playing. It only hears external audio. I'm not sure whether this will be an issue for you but for me it means my app is Chrome only (suboptimal). Forgive me for my naïveté in this arena, It's the first time I'm using any browser audio API.

Would your tool run on a server and work with a frontend for YT link ingestion or will you just use it yourself from the cli?

Leftium•1y ago
•
1y ago
I think I'll just have to stick with my current method for now, looks like the only way to get it done with static hosting.
Ideally, my tool would run on the server. Especially if I wanted to monetize the service. (However I think there may be legal issues that are larger than the technical ones...)

However it's just a small hobby project. So realistically I think this is how it will work:

- If user tries to load a video without beat data yet, instructions are shown for how to add the beat data. The instructions will be running CLI command like `npx upload-beat-data [YOUTUBE-URL]`

- The CLI tool will download the audio, then upload the beat data to my site.

- The site will also log which videos got a lot of requests, but are missing beat data. So I can manually add the beat data myself.