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Posted by david927 1 day ago

Ask HN: What are you working on? (September 2026)

What are you working on? What have you been curious about lately?
323 points | 994 commentspage 37
tajd 1 day ago|
Projektor - an ai native jira / wiki tool self hosted on cloudflare. Currently considering how to extend it to cover more activities involved in software development https://github.com/TAJD/projektor

Iron volume, recently added a kettlebell complex generator which isn’t too bad if I say myself https://www.ironvolume.com/

idorobots 20 hours ago||
https://github.com/Idorobots/org-cli

I'm building a CLI tool for Emacs Org-Mode files. It features JQ-like querying, editing files, capturing tasks, viewing agenda, an AGILE-like board and many more.

kthakore 1 day ago||
I’m building Hammer Labs (https://hammer.ai) to study when healthcare AI agents are wrong and when they should refuse to answer (judgement).

It started after spending 15 years building AI for insurers, hospitals, data companies, and startups. Almost every system ended with "a human reviews the output". That person was usually a nurse, medical director, or certified coder. These are some of the hardest people to hire, and the same people automation was supposed to help.

The problem is that real claims do not have an answer key. You cannot reduce human review until you can measure when an agent is wrong.

Getting claims data is also difficult. It can take a year of data agreements, privacy reviews, and procurement. Even then, you may not know what the correct decision should have been. So we generate claims. Utilization and case mix come from published data. Claims are priced using real fee schedules and contract terms. Payers behave differently, like real payers do. We plant errors on purpose, so the correct answer exists before any model runs.

On top of that, we are building benchmarks for overreach, refusal, errors by record type, and detection time. We are also building small MCP tools that refuse when evidence is missing. Every number includes its source, date, and basis.

What I find interesting is how much of this sits between actuarial work and machine learning. Both are needed, but I do not see many people connecting them.

25 published refusals: https://hammer.ai/worlds/refusals/ .

Runs on rate and policy evidence https://hammer.ai/reimbursement-evidence/ and savings claims https://hammer.ai/savings-claims/ .

AgentPlugin is Apache-2.0: https://github.com/hmmrlabs/hammer-plugin

itake 1 day ago|
I was trying to learn more about your project. The comment above was digestiable for me as a non-healthcare person, but the website is really difficult for me to understand.

The web design (and text?) really come off as ChatGPT written, which lowers my interest in spending time to understand it.

kthakore 9 hours ago|||
@itake, updated it https://hammer.ai/ is that clearer?
kthakore 16 hours ago|||
Thanks for the feedback, I will work on that. That being said our audience for the website are very deep data operators in healthcare.
405126121 1 day ago||
I'm working on https://pushrealm.com the AI-first knowledge sharing network. Think StackOverflow for bots. It works like this:

- When your agent is stuck on a bleeding edge issue, search Push Realm first for a solution. - If you find a solution, your agent can mark it as successful to help surface the solution to others (and hopefully save fruitlessly burning more tokens) - Can't find a solution? Post an open problem with your current investigation. Another agent may be able to solve the problem, and will have a head start thanks to your context - Solutions can be linked/edited/have addendum added by any agent, allowing complete, up-to-date solutions for a range of cutting edge issues

NewJazz 1 day ago|
Stackoverflow is permissively licensed nowadays.. What about the content on your network?
VincentBrand 10 hours ago||
I been diving into Neurosymbolic for the past 8 months, been working on a database that combines the best probalistic and deterministic reasoning into a single source of truth for AI agents and larger systems. http://www.oxid-db.com

Working out some details before dropping it opensource.

ahallan 18 hours ago||
https://elizabethlineguide.com/

Description on the tin.

I found it hard to get fares and timetables for the Elizabeth Line in London between X and Y quickly hence I built this as an experiment using AI tooling.

solomonb 1 day ago||
Continuing to develop my LPFM radio station www.kpbj.fm

- We have accumulated almost all the equipment needed to setup our FM broadcast. The main piece of equipment we still need is the EAS Decoder.

- Our studio space build is in progress. I recently welded some tables for the booth and found an old Orban Optimod for our airchain.

- We have over 80 shows and our roster continues to grow.

If you are in Los Angeles or love community radio please reach out.

lvduan 15 hours ago||
I built this sql formatter <https://sql.leuduan.work> for my own use - it works by parsing the SQL query to AST using native engines where possible (for BigQuery it use GoogleSQL library, for MSSQL it uses Microsoft ScriptDOM, the rest uses Apache Data Fusion Parser) and from the AST it re-generates the SQL query in a consistent formatted style. You can throw in all kind of badly formatted SQL queries and it will work just fine. Hope you find it useful!
hsnice16 1 day ago||
https://github.com/hsnice16/tula

Tula shows your true cross-venue exposure across HyperLiquid, Aave, and more, what breaks first, and more.

It's a terminal tool. The experience is very similar to any LLM terminal tool if you have used one.

You can also add an agent and ask things in plain English. Live at: https://usetu.la/

RobinL 1 day ago|
I've been experimenting for a year or two making games that make mental arithmetic practice fun for kids. The latest is https://rupertlinacre.com/keep_it_going/ an infinite rollercoaster, which I think is one of the more successful attempts. There are various others on the homepage. My son also really likes arithmetic annihilation and maths vs monsters.
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