Langy, an automated AI engineer (we gave it a robot body) [video]
Details
- External ID
- 49007760
- Source
- HN
- Company
- —
- Product
- Langy, an automated AI engineer (we gave it a robot body) [video]
- Website domain
- langwatch.ai
- Launched
- July 22, 2026
- Cohort
- —
- Upvotes
- 9
- Upvotes percentile
- 0.505973715651135
- Tags
- —
- Fetched at
- Sept. 7, 2026, 9:26 p.m.
- Updated at
- Sept. 7, 2026, 9:26 p.m.
Description
Founder here. Langy is an AI engineer that lives inside our platform, LangWatch. It reads your production traces, writes Scenario tests and evaluations for the problems it finds, opens a pull request on your repo, and proves the fix by running those simulations in CI. A human still merges.Reachy robot from Hugging Face arrived on the same week we were planing on launching it, so we wanted to use for the launch. So we it wired to our Langy which actually lives on the platform, and asked it to test our own customer-support voice agent. On the video you can see it writing the agent tests reading traces and everything.LangWatch is an open source platform (github.com/langwatch/langwatch) and Scenario, the simulation-testing library it drives, is open source too if you want to run that part yourself: https://github.com/langwatch/scenario. A full write-up on how Langy works under the hood is coming later this week.Happy to get into how it drives the robot, what is real vs staged, latency, or how the whole harness around it actually works.
Enrichment
- Theme
- task-specific ai agents and assistants
- Vertical
- Horizontal
- Function
- Agent / copilot
- Audience
- B2B
- AI stance
- AI-native
- Project type
- Commercial product
- Normalized one-liner
- ai engineer with robotic hardware
- Manually corrected
- False
Could you build this?
Partial An agent that generates tests and opens pull requests is vibe-codeable, but building the underlying production tracing infrastructure and controlling physical robotics hardware requires specialized systems engineering.
What it would actually take: A full version requires a high-throughput distributed tracing platform (similar to LangWatch or OpenTelemetry collectors), an evaluation harness that simulates multi-turn conversations without flaky regressions, a sandboxed CI execution engine, and hardware integration drivers (MCP over robotics APIs like Reachy). Building this requires distributed systems infrastructure and robotics integration expertise.
Discussion
No comments on this launch.
Competitors
Other products that read as similar to this one — 68 launches clear the similarity bar, closest 8 shown.
Attention rank: #38 of 69 (itself plus its competitors, highest first — normalized so YC and Product Hunt are compared fairly).
Launched 258 days after the earliest competitor.
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Other launches for this product
- No other launches for this product.
Same idea, different domain
Nobody's really built a agent / copilot tool for Agriculture yet.