Hacker News: joshuanapoli

New comment by joshuanapoli in "Ask HN: Are tab completion models dead?"

joshuanapoli — Sun, 25 Oct 2026 12:45:51 +0000

I disabled tab completion. When I open a file in an IDE, it is because I don’t want an AI edit; I’m fixing the confusing documentation, or changing a configuration, or making a small edit to the code. I do code changes through the agent, because it is more accurate and thorough.

I don’t think that I would use tab completions again. I bet that there will be some innovation in how code is visualized, though.

New comment by joshuanapoli in "MXC - a sandboxed code execution system"

joshuanapoli — Fri, 09 Oct 2026 11:36:43 +0000

If you have a custom agent in a product, then it needs isolation to be sure to protect the customer data.

New comment by joshuanapoli in "Ask HN: Who is hiring? (October 2026)"

joshuanapoli — Fri, 02 Oct 2026 02:23:46 +0000

CVector builds software to bring real time economic optimization and AI prediction to every energy and manufacturing plant. We integrate real-time data visualization and analytics to help power generation stations, chemical plants, and other critical infrastructure make informed decisions in rapidly changing environments. You'll help create intuitive, robust web apps, machine learning models and backend systems, shaping tools that directly impact industrial operations and energy reliability. Build AI agent systems that automatically foresee upcoming problems and provide possible solutions.

Full Stack and Backend Software Engineers: We're looking for a passionate Software Engineers comfortable working across our stack (Python, Typescript, React, Supabase, MQTT, TimescaleDB, PostgreSQL, AWS, FastAPI) or someone to specialize in our backend infrastructure.

Senior Research Engineer: Candidates should be experienced with machine learning, and analysis using Python.

Reach out to me at jnapoli+hn@cvector.com

New comment by joshuanapoli in "Ask HN: How do you manage skills files?"

joshuanapoli — Sun, 06 Sep 2026 23:46:09 +0000

We have some company-managed skills, that help coding agents find the relationships between our repos, and our conventions, architecture, and other high-level decisions. These are supposed to be portable between agents, and so distributing them is currently awkward.

We have a bootstrap script to deploy company-managed skills to each developer's "personal" skills. Hooks for codex and claude code try to refresh the skills on each startup.

New comment by joshuanapoli in "Atomarine: Nuclear Data Centers at Sea"

joshuanapoli — Thu, 30 Jul 2026 11:12:42 +0000

I don’t think that anyone would want to steal an icebreaker, but a datacenter full of valuable equipment and interesting information is a more likely target.

New comment by joshuanapoli in "Incident with Actions and Pages"

joshuanapoli — Tue, 26 May 2026 16:33:27 +0000

I've been thinking of reverting back to Circle CI.

New comment by joshuanapoli in "Postmortem: TanStack NPM supply-chain compromise"

joshuanapoli — Tue, 12 May 2026 11:41:57 +0000

Does zizmor catch this pull_request_target vs cache poison vulnerability?

New comment by joshuanapoli in "I'm going back to writing code by hand"

joshuanapoli — Mon, 11 May 2026 02:10:24 +0000

Rewrite following a new architecture plan could get finished pretty quickly, treating the original as a prototype.

New comment by joshuanapoli in "Ask HN: Who is hiring? (April 2026)"

joshuanapoli — Thu, 02 Apr 2026 02:34:35 +0000

CVector recently raised $5M seed, read more on TechCrunch: https://techcrunch.com/2026/01/26/ai-startup-cvector-raises-...

Senior Research Engineer: Candidates should be experienced with machine learning, and analysis using Python.

Reach out to me at jnapoli+hn@cvector.com

New comment by joshuanapoli in "We rewrote our Rust WASM parser in TypeScript and it got faster"

joshuanapoli — Fri, 20 Mar 2026 23:16:10 +0000

They use a bespoke language to define LLM-generated UI components. I think that this is supposed to prevent exfiltration if the LLM is prompt-injected. In any case, the parser compiles chunks streaming from the LLM to build a live UI. The WASM parser restarted from the beginning upon each chunk received. Fixing this algorithm to work more incrementally (while porting from Rust to TypeScript) improved performance a lot.

New comment by joshuanapoli in "Ask HN: Who is hiring? (March 2026)"

joshuanapoli — Tue, 03 Mar 2026 14:03:52 +0000

CVector builds software to bring real-time economic optimization and AI prediction to every energy and manufacturing plant. We fuse live asset data with market dynamics into one decision layer that continuously forecasts, simulates, and optimizes — so plants run closer to their true economic potential every day. CVector recently raised $5M seed, read more on TechCrunch: https://techcrunch.com/2026/01/26/ai-startup-cvector-raises-...

We're looking for a senior backend engineer to evolve our core platform — time-series data systems, AI-assisted analytics, cloud infrastructure, and data ingestion pipelines. You'll take ownership of complex systems, drive major technical migrations, and shape how intelligence is embedded into industrial energy workflows. Think: AI evals and prompt engineering, MQTT ingestion pipelines, time-series schema design, PostgreSQL infrastructure, and ML platform support.

Stack: Python, TypeScript, Supabase, PostgreSQL, MQTT, TigerData, InfluxDB, AWS. 5+ years experience building production backend systems. FinTech, quantitative analysis, or econometrics background is a strong plus.

$125K–$150K + meaningful equity. Reach out to me at jnapoli+hn@cvector.com

New comment by joshuanapoli in "WebMCP is available for early preview"

joshuanapoli — Mon, 02 Mar 2026 01:57:50 +0000

WebMCP should be a really easy way to add some handy automation functionality to your website. This is probably most useful for internal applications.

New comment by joshuanapoli in "Ask HN: Who is hiring? (February 2026)"

joshuanapoli — Mon, 02 Feb 2026 20:01:32 +0000

CVector recently raised $5M seed, read more on TechCrunch: https://techcrunch.com/2026/01/26/ai-startup-cvector-raises-...

Senior Research Engineer: Candidates should be experienced with machine learning, and analysis using Python.

Reach out to me at jnapoli+hn@cvector.com

New comment by joshuanapoli in "Show HN: I built a tool to assist AI agents to know when a PR is good to go"

joshuanapoli — Sat, 17 Jan 2026 17:47:47 +0000

This looks nice! I like the idea of providing more deterministic feedback and more or less forcing the assistant to follow a particular development process. Do you have evidence that gtg improves the overall workflow? I think that there is a trade-off between risk of getting stuck (iteration without reaching gtg-green) versus reaching perfect 100% completion.

New comment by joshuanapoli in "Tell HN: Merry Christmas"

joshuanapoli — Wed, 24 Dec 2025 20:00:13 +0000

Merry Christmas from Rhode Island!

New comment by joshuanapoli in "AWS outage caused by latent race condition in the DynamoDB DNS management system"

joshuanapoli — Sun, 26 Oct 2025 17:00:09 +0000

See discussion on AWS's report here: https://news.ycombinator.com/item?id=45677139

New comment by joshuanapoli in "Show HN: I spent 4 months building Duolingo but for your life"

joshuanapoli — Sat, 27 Sep 2025 13:50:17 +0000

Yeah, maybe it would be nice to have a fast-track onboarding option for common goals: lose weight, finish homework or chores, etc.

New comment by joshuanapoli in "Show HN: Semantic grep with local embeddings"

joshuanapoli — Sun, 07 Sep 2025 13:03:20 +0000

I don’t think that “Claude Code” is relevant to this semantic grep tool.

New comment by joshuanapoli in "1TB Raspberry Pi SSD on sale now for $70"

joshuanapoli — Fri, 05 Sep 2025 17:45:24 +0000

Yes, this is it. When I'm experimenting, I'm happy to pay an extra $40 for the name-brand device that has 1000s of blog posts supporting it, since it's probably this community is going to help me be more successful and learn faster.

I would reconsider the choice when I have a commercial product that I have some scale of production, where a few bucks off the BOM is important.

New comment by joshuanapoli in "Ask HN: Who is hiring? (September 2025)"

joshuanapoli — Mon, 01 Sep 2025 21:54:32 +0000

CVector builds software to make energy systems smarter, more reliable, and autonomous. We integrate real-time data visualization and analytics to help power generation stations, chemical plants, and other critical infrastructure make informed decisions in rapidly changing environments. You'll help create intuitive, robust web apps and backend systems, shaping tools that directly impact industrial operations and energy reliability.

Remote-first team with occasional domestic travel to connect with users directly. Recent graduates may need to relocate.

Full Stack Software Engineer: We're looking for a passionate Full Stack Software Engineer comfortable working across our stack (Python, Typescript, React, Supabase, MQTT, TimescaleDB, PostgreSQL, AWS, FastAPI).

Reach out to me at jnapoli+hn@cvector.energy