Lunar, a coding harness extensible with Lua
Details
- External ID
- 49386386
- Source
- HN
- Company
- —
- Product
- Lunar, a coding harness extensible with Lua
- Website domain
- github.com
- Launched
- Aug. 21, 2026
- Cohort
- —
- Upvotes
- 5
- Upvotes percentile
- 0.12634408602150538
- Tags
- —
- Fetched at
- Sept. 10, 2026, 5:32 a.m.
- Updated at
- Sept. 10, 2026, 5:32 a.m.
Description
Hi all! Sharing a small pet project my agents and I have been working on:Lunar, a coding harness configurable and extensible via Lua scripts.I'm already using Lunar to develop Lunar :) Give it a try!Soon you will be able to extend it using Lua hooks.
Enrichment
- Theme
- ai coding agents and tooling
- Vertical
- Horizontal
- Function
- Dev tools
- Audience
- Developer
- AI stance
- Not AI
- Project type
- Hobby / open-source project
- Normalized one-liner
- coding harness extensible with lua
- Manually corrected
- False
Could you build this?
Yes It is an agentic coding harness/CLI tool that embeds a Lua runtime (such as mlua or LuaJIT) to allow user scripting and hooks around standard LLM completions.
Discussion
5 comments analyzed.
Concerns raised: Read/write/edit operations need to target runtime filesystem, Bash working directory assumptions break with remote execution, Model context outdated when tool implementation changes
Feature requests: Support for additional endpoints, Tool schema/description ownership per slot
Competitors
Other products that read as similar to this one — 25 launches clear the similarity bar, closest 8 shown.
Attention rank: #24 of 26 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 168 days after the earliest competitor.
- Lunar, a "fast", memory-efficient Lua 5.1 VM written in Go · hn · 2026-08-03 · 8 upvotes · similarity 0.47
- Moongate · hn · 2026-03-06 · 287 upvotes · similarity 0.38
- Pi Coding Agent · ph · 2026-05-25 · 177 upvotes · similarity 0.38
- HarnessRouter: Unified interface for agent harnesses · hn · 2026-08-17 · 10 upvotes · similarity 0.37
- harness-bridge · github · 2026-09-17 · 83 upvotes · similarity 0.36
- HarnessRouter: Open-Sourcing the World’s First Unified Interface for Agent Harnesses and the Unified Harness Protocol · yc · 2026-08-17 · 6 upvotes · similarity 0.35
- Instinct - Lunar Landers as a Service · yc · 2026-06-17 · 7 upvotes · similarity 0.35
- agnes-harness · github · 2026-09-22 · 18 upvotes · similarity 0.33
Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a dev tools tool for Sales yet.