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Hi HN, I built NavAgent, a small MCP server + Chrome extension that lets AI clients drive your real browser session without CDP.

I use Claude Code daily, and I kept wanting it to interact with pages in my own browser, with my existing tabs, cookies, and logins.

Most browser automation approaches I tried for MCP were based on CDP / Playwright. I wanted something lighter and closer to normal browser behavior, so I tried a different design: the extension scans the DOM and sends the model a compact numbered list of actionable elements over a local WebSocket.

So the model sees something like: Search [input] Books [link] ... and can reply with browse_click(2) or browse_type(...)

That keeps scans very small (usually much smaller than screenshots or ARIA-tree dumps) and avoids screenshots, vision models, and huge accessibility payloads.

It currently handles SPAs, shadow DOM, same-origin iframes, and contenteditable editors. Everything runs locally. Setup is just the npm package plus the extension, and you can already try it by sideloading the extension from the repo and running npx navagent-mcp.

It's intentionally narrow: this is not a replacement for Playwright, CI automation or heavy scraping. It's a passive bridge for everyday browser tasks like opening pages, clicking around, and filling forms from an AI assistant.

It's still early, but it's already useful for my daily workflow. Feedback very welcome, especially on edge cases, security concerns and sites where it breaks.

Comments URL: https://news.ycombinator.com/item?id=47268758

Points: 1

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Article URL: https://blog.ceejbot.com/posts/future-shock/

Comments URL: https://news.ycombinator.com/item?id=47268753

Points: 1

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Article URL: https://www.anthropic.com/research/labor-market-impacts

Comments URL: https://news.ycombinator.com/item?id=47268391

Points: 1

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Article URL: https://blog.viajesmachupicchu.travel/en/tapadas-limenas-limas-mysterious-women-revealed/

Comments URL: https://news.ycombinator.com/item?id=47268381

Points: 1

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Article URL: https://markdotto.com/blog/github-system-fonts

Comments URL: https://news.ycombinator.com/item?id=47268378

Points: 1

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I built BUS Core, a local-first ERP aimed at small manufacturing shops and makers.

It handles inventory, vendors, manufacturing runs, and costing.

Everything runs locally: - no accounts - no telemetry - no SaaS dependency

The goal was to make something usable for very small shops that outgrow spreadsheets but don't fit traditional ERP systems.

Tech stack is intentionally simple: Python backend + SQLite + local web UI.

Project started as an experiment in building software using LLMs with a strict Source-of-Truth + smoke test loop.

Repo: https://buscore.ca/ https://github.com/True-Good-Craft/TGC-BUS-Core

Curious to hear from anyone running small production operations — what breaks first as you scale past spreadsheets?

Comments URL: https://news.ycombinator.com/item?id=47268376

Points: 2

# Comments: 0

I built Fitopoly, a mobile app where workouts capture territory on a world map.

Running, walking, cycling, and gym workouts generate “hex captures”, gradually expanding your controlled territory.

The idea was to apply game design mechanics to fitness motivation, making progress visual and competitive.

Tech stack:

- Flutter (iOS + Android) - server API - geospatial gameplay logic

Curious to hear feedback from the HN community.

Comments URL: https://news.ycombinator.com/item?id=47268371

Points: 2

# Comments: 0

Article URL: https://techcrunch.com/2026/03/05/cluely-ceo-roy-lee-admits-to-publicly-lying-about-revenue-numbers-last-year/

Comments URL: https://news.ycombinator.com/item?id=47268351

Points: 4

# Comments: 2

Presage scores every Polymarket trade against five on-chain signals: wallet age, position concentration, bet probability, trade volume, and wallet clustering. Backtested against three confirmed insider events with clean separation between suspicious and legitimate activity.

Comments URL: https://news.ycombinator.com/item?id=47268341

Points: 2

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Article URL: https://github.com/comet-ml/opik-openclaw

Comments URL: https://news.ycombinator.com/item?id=47268339

Points: 1

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Article URL: https://advanced.onlinelibrary.wiley.com/doi/epdf/10.1002/adma.202519286

Comments URL: https://news.ycombinator.com/item?id=47268328

Points: 1

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Article URL: https://xcancel.com/Yuchenj_UW/status/2029645361548251271?s=20

Comments URL: https://news.ycombinator.com/item?id=47268323

Points: 2

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Article URL: https://www.bbc.com/news/articles/cx244kdplnzo

Comments URL: https://news.ycombinator.com/item?id=47268315

Points: 2

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Article URL: https://github.com/UglyEgg/cognitive-task-partitioning

Comments URL: https://news.ycombinator.com/item?id=47268300

Points: 2

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Article URL: https://www.theverge.com/streaming/889973/netflix-ben-affleck-interpositive-ai

Comments URL: https://news.ycombinator.com/item?id=47268292

Points: 2

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Article URL: https://www.bloomberg.com/news/articles/2026-03-03/iran-war-tests-insider-trading-death-wagers-on-kalshi-and-polymarket

Comments URL: https://news.ycombinator.com/item?id=47268286

Points: 3

# Comments: 1

Article URL: https://www.pcworld.com/article/3079523/google-makes-gmail-drive-and-docs-agent-ready-for-openclaw.html

Comments URL: https://news.ycombinator.com/item?id=47268284

Points: 2

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Article URL: https://www.youtube.com/watch?v=k-bmCJyoBu4

Comments URL: https://news.ycombinator.com/item?id=47268281

Points: 2

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Article URL: https://www.nytimes.com/2026/03/05/world/middleeast/iran-school-us-strikes-naval-base.html

Comments URL: https://news.ycombinator.com/item?id=47268280

Points: 2

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