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Show HN: C9watch – macOS menu bar app to monitor all Claude Code sessions

https://github.com/minchenlee/c9watch
1•minchenlee•1h ago
I was running Claude Code across 10+ terminal tabs and constantly switching between them to check which session needed permission, which was done, which was idle. Tried existing tools but they required launching sessions from within their app — I wanted to keep using my own terminals.

c9watch scans running processes at the OS level and reads from `~/.claude/` to detect every active Claude Code session automatically. Works with any terminal or IDE — VS Code, Zed, iTerm2, tmux, Ghostty — no plugins or workflow changes needed.

The tray popover gives you a quick overview. The full dashboard lets you: - Group sessions by status or by project (with git branch info) - Expand any session to read the full conversation — formatted markdown, code blocks, tool calls - Stop sessions, rename them, or jump to the parent terminal/IDE - Get native macOS notifications when sessions need attention - Use a WebSocket-based web/mobile client via QR code

Built with Tauri (Rust + Svelte), not Electron. Rust handles process scanning and JSONL parsing. The binary is small and memory usage is minimal.

MIT license, no telemetry.

GitHub: https://github.com/minchenlee/c9watch

Show HN: Validatedata – lightweight inline data validation for Python

https://pypi.org/project/validatedata/
1•EdwardK1•38s ago•0 comments

New polymer alloy could solve energy storage challenge

https://techxplore.com/news/2026-02-polymer-alloy-energy-storage.html
1•PaulHoule•1m ago•0 comments

Observability Storage Was Designed for Humans. Agents Need Something Else

https://www.deductive.ai/blogs/observability-storage-for-the-agentic-era
1•sagrw•2m ago•0 comments

Show HN: Fast Database for Agents

https://github.com/sushrut141/kalki
1•wanderinglight•2m ago•0 comments

You Don't Need to Detect Prompt Injection to Stop It

https://sibylline.dev/articles/2026-02-22-schema-strict-prompt-injection-firewall/
1•CuriouslyC•2m ago•0 comments

Finance techie says cloned Bloomberg's $30k/year Terminal with Perplexity

https://www.tomshardware.com/tech-industry/artificial-intelligence/finance-techie-says-they-clone...
1•pseudolus•4m ago•0 comments

Surviving large migrations: Metrolink and the housing crisis

https://thesidedish.flipdish.com/surviving-large-migrations-metrolink-and-the-housing-crisis-5839...
1•rbanffy•5m ago•0 comments

SongAI

https://songai.io
1•122506•6m ago•1 comments

Show HN: I built a multi-model AI terminal with a custom mobile web UI

https://github.com/jazzenchen/VibeAround
1•jazzen•7m ago•1 comments

Show HN: Clappie – Claude Code remote but more fun and useful

https://clappie.ai/
3•TIPSIO•8m ago•0 comments

If code is cheap, intent is the currency

https://zknill.io/posts/commit-message-intent/
1•zknill•8m ago•0 comments

How to take full-page screenshots in Chrome on any device – it's easy and free

https://www.zdnet.com/article/how-to-take-a-full-page-screenshot-in-google-chrome-browser/
1•ohjeez•9m ago•0 comments

Video Conferencing with Postgres

https://planetscale.com/blog/video-conferencing-with-postgres
1•nickvanw•9m ago•0 comments

Corona Discharges Glow on Trees Under Thunderstorms

https://agupubs.onlinelibrary.wiley.com/doi/10.1029/2025GL119591
1•bookofjoe•10m ago•0 comments

Writing C with indent-based Python syntax

https://sph.mn/computer/guides/c/c-indent.html
1•arboles•10m ago•0 comments

The Rise and Fall of a 3-D Printing Empire

https://www.nytimes.com/2026/02/27/business/3d-printing-industry.html
1•acdanger•10m ago•0 comments

I'm a truck driver who built a privacy-first RSS and webcomic reader

https://addons.mozilla.org/en-US/firefox/addon/rss-ninja/
1•DigitalFracture•11m ago•1 comments

I made a website to test if you know colors

https://colorguesser.xyz/
1•beingmani•11m ago•0 comments

I used Claude Code to migrate my WordPress blog in an afternoon

https://www.pawlean.com/posts/migrate-wordpress-to-mdx-claude-code
1•speckx•13m ago•0 comments

Electromagnetic Feedback: Making an electronic sound sculpture [video]

https://www.youtube.com/watch?v=CoP-mSCzevc
2•camtarn•14m ago•1 comments

Show HN: Csv.repair – Free browser-based tool to fix broken CSV files

https://github.com/hsr88/csv-repair
1•murzynalbinos•14m ago•0 comments

Guardclaw – 7 layers between your AI agents and disaster

https://takeinterest.ai/guardclaw
1•TakeInterestInc•14m ago•1 comments

SenseStream – Mood-based film discovery instead of genre browsing

1•Noha25•15m ago•0 comments

Cute-Symbol – A lightweight, zero-ad character picker for developers

https://cute-symbol.com
1•Aqua0811•16m ago•1 comments

Show HN: I Built Imgur for Markdown

https://www.jotbird.com
1•mcone•19m ago•1 comments

Show HN: Citatra – Opensource AI visibility tracker for Google AI Overview

https://github.com/Citatra/Citatra
1•Citatra•20m ago•0 comments

OpenAI uncovers Chinese intimidation operation through official's use of ChatGPT

https://www.cnn.com/2026/02/25/politics/chatgpt-china-intimidation-operation
4•cwwc•22m ago•1 comments

The Eschatian Hypothesis

https://arxiv.org/abs/2512.09970
1•bediger4000•23m ago•0 comments

Startup idea validator – Get brutal verdict

https://dontbuild.it/
1•hackerbo•24m ago•0 comments

Banks weigh risks of agentic AI in payment systems

https://www.thebanker.com/content/28823d12-c0e8-462f-aca9-6e9dca0a64ef
1•petethomas•25m ago•0 comments