Ask HN: What are tools you have made for yourself since the advent of AI?

The tool that converts my telegram channel into web page with catalog of all the records where emoji used as a tags, so I can quickly find any post:

Code: https://github.com/VadimKey/xorpingtonian

Catalog (in Russian): https://vadimkey.github.io/xorpingtonian/

During vibe coding I found that emojis are not that simple as I thought about them.

I use agents to do most of the tedious admin for my hire business, and I built www.vessels.app to run them on the go because there was no native solution to talk to my agents. I’ve started working towards releasing this to the public because it’s so much better than setting up agents via telegram or slack.

Lookup or modify selected text using AI (chrome extension). I just select any text and click the tiny popup button "what's this" and get an answer right there on the page. Made it mainly to explain terms and abbreviations I come across on HN often. Can also ask any other question about selected text. Can even modify the selected text the same way. [1]

OneNote to markdown/obsidian canvas converter. It did that using interop api to read the actual XML of the onenote files.

Work time tracker as 1px line on edge of monitor. Shows thin line at the edge of the display which fills up based on what i am doing.

Plaintext bookmark chrome extension that save links to local markdown file, Dynalist, Workflowy, Github Gist and import export between them. Was originally for Dynalist when AI couldn't do much 2-3 years ago. Recently added these other end points. [2]

A heart rate monitor with finger on camera. It's bit crappy though. Had to make it because many trackers, including google fit, couldn't detect 200bpm. https://github.com/SMUsamaShah/heart-rate

[1]: https://github.com/SMUsamaShah/LookupChatGPT/tree/claude/fix...

[2]: https://github.com/SMUsamaShah/plainmark

I built https://sdocs.dev and use it daily. It’s a CLI-driven markdown reader which (privately) renders Markdown in the browser.

When you install the CLI, it (with your permission) asks to update your base agent prompt files (e.g. `~/.codex/AGENTS.md`, or `~/.Claude/CLAUDE.md`) with info about how to use the tool.

This means all your agent chats know about SDocs, and it’s nearly always your agent which invokes the tool: “Hey Claude, sdoc me a list of all my open MRs”, etc.

I did a ShowHN about it here: https://news.ycombinator.com/item?id=47777633

A clone of Insomnia/Postman/Yaak for my own use: https://www.apikulture.com https://codeberg.org/Sheldonari/APIKulture