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Ask HN: What Are You Working On? (April 2026)

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Re: Ask HN: What Are You Working On? (April 2026)

#693
https://github.com/danieltanfh95/replsh

LLMs are surprisingly bad at using REPLs, so I made a CLI that handles sync, streaming, async REPL evals support over docker, ssh, local, and supporting python and clojure. Also proudly would like to claim that that it was successfully in maintaining agent quality because they are grounded in code.

https://github.com/danieltanfh95/agent-lineage-evolution/ aka `succession`

My solution for infinite context, and persistent instruction following (very important for replsh and grounding, LLMs are very bad at using tools outside of their training/harness) is to build a persistent and self-resolving identity for the agent.

These two tools now power my day and are very crucial in allowing me to use claude models outside of their supposed "nerfs":

1. succession handles instruction drifts that will only get worse as LLMs get better at reasoning (this seems counter intuitive until you realise that claude.md etc is only injected at the start of the instruction and the significant distance grows)

2. replsh grounds the llm and avoids pure mental tracing and hallucination while allowing the llm to test while coding.

3. clojure is surprisingly the most productive language i am using LLMs for, given its package of data driven design, domain driven design, emphasis on data shape and layers, lack of syntax and overall lesser code written leading to less bugs.

Re: Ask HN: What Are You Working On? (April 2026)

#694
One aspect of a product I'm working on is a family communications tool meant to bridge generations. My side project is an alternative client for Bluesky that runs as an installable app on many platforms, and cleans up some of the legacy UI complexity in the default client app. I'm looking for application areas like enterprise group communication. If you are working in related areas, especially in product management and strategy, I want to hear from you. Find me at my name .com

Re: Ask HN: What Are You Working On? (April 2026)

#699
Just shipped numa v0.13.0: added request hedging (fires a parallel query after 10ms if the primary stalls, inspired by Google's Tail at Scale paper) wire-level cache with serve-stale (RFC 8767) and a DoT client for encrypted upstream.

Wrote about the tail latency investigation: https://numa.rs/blog/posts/fixing-doh-tail-latency.html

Re: Ask HN: What Are You Working On? (April 2026)

#700
3 things currently; some fun toys..

Web based two player bingo race game in an attempt to drag significant other away from mobile phone. :p

Optimised gravity sim, everyone loves a good gravity sim. Event driven physics and aiming for 10000 spheres at 60fps.

Alife simulation where critters can read and write symbols into/from their environment to see if we can't get some kind of rudimentary communication evolved.

Nothing super serious, but fun gadgets to tinker with :)

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