Show HN: Necessary Cuts – an interactive fiction fragment https://ift.tt/urRMP3i

Show HN: Necessary Cuts – an interactive fiction fragment I'm a platform engineer who wrote a literary novella that's getting published next year. I've also had an interest in interactive narratives for a while, so I decided to experiment. This was also heavily inspired by "playing" through Betwixt. The result is a short interactive fragment (~5 minutes) — ambient audio synced to prose, three scenes. I didn't want to build a true game as much as make an attempt at immersion. So I re-wrote a fragment set in the world of the book, and wired up the computer-y bits to it. The fragment is in second person (the novella isn't), because other POVs don't really work with the immersion angle. For the technically interested, this is just vanilla JS and Web Audio API, no frameworks - as is the way of my people. https://ift.tt/0SoAjC4 March 25, 2026 at 01:00AM

Show HN: DuckDB community extension for prefiltered HNSW using ACORN-1 https://ift.tt/meMuSZl

Show HN: DuckDB community extension for prefiltered HNSW using ACORN-1 Hey folks! As someone doing hybrid search daily and wishing I could have a pgvector-like experience but with actual prefiltered approximate nearest neighbours, I decided to just take a punt on implementing ACORN on a fork of the DuckDB VSS extension. I had to make some changes to (vendored) usearch that I'm thinking of submitting upstream. But this does the business. Approximate nearest neighbours with WHERE prefiltering. https://ift.tt/IiTWOyd March 25, 2026 at 12:28AM

Show HN: Danube – AI Tools Marketplace https://ift.tt/ALIMKV2

Show HN: Danube – AI Tools Marketplace Hey HN, I built Danube, a marketplace where AI agents can discover and execute tools, and where developers can publish and monetize them. I got tired of two things: giving my API keys directly to agents like OpenClaw (didn't feel secure), and having to re-setup all my MCP servers every time I switched between Cursor, Claude Code, and other tools. Danube stores your credentials securely. Your agent calls the tool and never sees the keys. And since it's one MCP connection, you set it up once and it works across all your clients. For devs who want to publish: you upload an OpenAPI spec or MCP server, optionally set pricing, and you're live. Agents can search and find your tools without users needing to manually configure anything. 100+ services work today. No signup required to browse. Would love to hear what tools you use most with AI agents. If anyone's interested in publishing a tool, happy to help get you set up. https://danubeai.com March 24, 2026 at 08:41AM

Show HN: Kern – One agent. One folder. One mind. Every channel https://ift.tt/3nVJOHE

Show HN: Kern – One agent. One folder. One mind. Every channel https://ift.tt/YSAsXk1 March 24, 2026 at 04:44AM

Show HN: ProofShot – Give AI coding agents eyes to verify the UI they build https://ift.tt/DtvuSUV

Show HN: ProofShot – Give AI coding agents eyes to verify the UI they build I use AI agents to build UI features daily. The thing that kept annoying me: the agent writes code but never sees what it actually looks like in the browser. It can’t tell if the layout is broken or if the console is throwing errors. So I built a CLI that lets the agent open a browser, interact with the page, record what happens, and collect any errors. Then it bundles everything — video, screenshots, logs — into a self-contained HTML file I can review in seconds. proofshot start --run "npm run dev" --port 3000 # agent navigates, clicks, takes screenshots proofshot stop It works with whatever agent you use (Claude Code, Cursor, Codex, etc.) — it’s just shell commands. It's packaged as a skill so your AI coding agent knows exactly how it works. It's built on agent-browser from Vercel Labs which is far better and faster than Playwright MCP. It’s not a testing framework. The agent doesn’t decide pass/fail. It just gives me the evidence so I don’t have to open the browser myself every time. Open source and completely free. https://ift.tt/EYNSDuL https://ift.tt/VdTYSOC March 24, 2026 at 04:46AM

Show HN: AgentDrive – Persistent file storage for AI agents https://ift.tt/BsDo6l4

Show HN: AgentDrive – Persistent file storage for AI agents https://ift.tt/YM1OrDN March 23, 2026 at 11:47PM

Show HN: I made a AI Code Review tool that knows how your company works https://ift.tt/3KY5sIb

Show HN: I made a AI Code Review tool that knows how your company works https://ift.tt/2qyMUB9 March 23, 2026 at 04:56AM