🛠️ Hacker News Tools
Showing 1061–1080 of 2538 tools from Hacker News
Last Updated
April 25, 2026 at 12:01 PM
Show HN: ChunkHound, a local-first tool for understanding large codebases
Hacker News (score: 28)[Other] Show HN: ChunkHound, a local-first tool for understanding large codebases ChunkHound’s goal is simple: local-first codebase intelligence that helps you pull deep, core-dev-level insights on demand, generate always-up-to-date docs, and scale from small repos to enterprise monorepos — while staying free + open source and provider-agnostic (VoyageAI / OpenAI / Qwen3, Anthropic / OpenAI / Gemini / Grok, and more).<p>I’d love your feedback — and if you have, thank you for being part of the journey!
Show HN: Docker.how – Docker command cheat sheet
Hacker News (score: 29)[Other] Show HN: Docker.how – Docker command cheat sheet
Show HN: Minikv – Distributed key-value and object store in Rust (Raft, S3 API)
Hacker News (score: 10)[DevOps] Show HN: Minikv – Distributed key-value and object store in Rust (Raft, S3 API) Hi HN,<p>I’m releasing minikv, a distributed key-value and object store in Rust.<p>What is minikv? minikv is an open-source, distributed storage engine built for learning, experimentation, and self-hosted setups. It combines a strongly-consistent key-value database (Raft), S3-compatible object storage, and basic multi-tenancy. I started minikv as a learning project about distributed systems, and it grew into something production-ready and fun to extend.<p>Features/highlights:<p>- Raft consensus with automatic failover and sharding - S3-compatible HTTP API (plus REST/gRPC APIs) - Pluggable storage backends: in-memory, RocksDB, Sled - Multi-tenant: per-tenant namespaces, role-based access, quotas, and audit - Metrics (Prometheus), TLS, JWT-based API keys - Easy to deploy (single binary, works with Docker/Kubernetes)<p>Quick demo (single node):<p>git clone <a href="https://github.com/whispem/minikv.git" rel="nofollow">https://github.com/whispem/minikv.git</a> cd minikv cargo run --release -- --config config.example.toml curl localhost:8080/health/ready # S3 upload + read curl -X PUT localhost:8080/s3/mybucket/hello -d "hi HN" curl localhost:8080/s3/mybucket/hello<p>Docs, cluster setup, and architecture details are in the repo. I’d love to hear feedback, questions, ideas, or your stories running distributed infra in Rust!<p>Repo: <a href="https://github.com/whispem/minikv" rel="nofollow">https://github.com/whispem/minikv</a> Crate: <a href="https://crates.io/crates/minikv" rel="nofollow">https://crates.io/crates/minikv</a>
Show HN: What if your menu bar was a keyboard-controlled command center?
Hacker News (score: 36)[IDE/Editor] Show HN: What if your menu bar was a keyboard-controlled command center? Hey Hacker News The ones that know me here know that I am a productivity geek.<p>After DockFlow to manage my Dock and ExtraDock, which gives me more space to manage my apps and files, I decided to tackle the macOS big boss: the menu bar.<p>I spend ~40% of my day context-switching between apps — Zoom meetings, Slack channels, Code projects, and Figma designs. My macOS menu bar has too many useless icons I almost never use.<p>So I thought to myself, how can I use this area to improve my workflows?<p>Most solutions (Bartender, Ice) require screen recording permissions, and did not really solve my issues. I wanted custom menus in the apps, not the ones that the developers decided for me.<p>After a few iterations and exploring different solutions, ExtraBar was created. Instead of just hiding icons, what if the menu bar became a keyboard-controlled command center that has the actions I need? No permissions. No telemetry. Just local actions.<p>This is ExtraBar: Set up the menu with the apps and actions YOU need, and use a hotkey to bring it up with full keyboard navigation built in.<p>What you can do: - Jump into your next Zoom call with a keystroke - Open specific Slack channels instantly (no menu clicking) - Launch VS Code projects directly - Trigger Apple Shortcuts workflows - Integrate with Raycast for advanced automation - Custom deep links to Figma, Spotify, or any URL<p>Real-world example: I've removed my menu bar icons. Everything is keyboard- controlled: cmd+B → 2 (Zoom) → 4 (my personal meeting) → I'm in.<p>Why it's different: Bartender and Ice hide icons. ExtraBar <i>uses</i> your menu bar to do things. Bartender requires screen recording permissions. Ice requires accessibility permissions. ExtraBar works offline with zero permissions - (Enhance functionality with only accessibility permissions, not a must)<p>Technical: - Written in SwiftUI; native on Apple Silicon and Intel - Zero OS permissions required (optional accessibility for enhanced keyboard nav) - All data stored locally (no cloud, no telemetry) - Very Customizable with custom configuration built in for popular apps + fully customizable configuration actions. - Import/export action configurations<p>The app is improving weekly based on community feedback. We're also building configuration sharing so users can share setups.<p>Already got some great feedback from Reddit and Producthunt, and I can't wait to get yours!<p>Check out the website: <a href="https://extrabar.app" rel="nofollow">https://extrabar.app</a> ProductHunt: <a href="https://www.producthunt.com/products/extrabar" rel="nofollow">https://www.producthunt.com/products/extrabar</a>
Provide agents with automated feedback
Hacker News (score: 115)[Other] Provide agents with automated feedback
Show HN: I built a tool to assist AI agents to know when a PR is good to go
Hacker News (score: 16)[Other] Show HN: I built a tool to assist AI agents to know when a PR is good to go I've been using Claude Code heavily, and kept hitting the same issue: the agent would push changes, respond to reviews, wait for CI... but never really know when it was done.<p>It would poll CI in loops. Miss actionable comments buried among 15 CodeRabbit suggestions. Or declare victory while threads were still unresolved.<p>The core problem: no deterministic way for an agent to know a PR is ready to merge.<p>So I built gtg (Good To Go). One command, one answer:<p>$ gtg 123 OK PR #123: READY CI: success (5/5 passed) Threads: 3/3 resolved<p>It aggregates CI status, classifies review comments (actionable vs. noise), and tracks thread resolution. Returns JSON for agents or human-readable text.<p>The comment classification is the interesting part — it understands CodeRabbit severity markers, Greptile patterns, Claude's blocking/approval language. "Critical: SQL injection" gets flagged; "Nice refactor!" doesn't.<p>MIT licensed, pure Python. I use this daily in a larger agent orchestration system — would love feedback from others building similar workflows.
Show HN: On the edge of Apple Silicon memory speeds
Show HN (score: 5)[CLI Tool] Show HN: On the edge of Apple Silicon memory speeds I have developed open source CLI-tool for Apple Silicon macOS. It measures memory speeds in different ways and also latency. It can achieve up to 96-97% efficiency on read speed on M4 base what is advertised as 120GB/s. All memory operations are in assembly.<p>I would really appreciate for results on different CPU's how benchmark works on those. I have been able to test this on M1 and M4.<p>command : 'memory_benchmark -non-cacheable -count 5 -output results.JSON' (close all applications before running)<p>This will generate JSON file where you find sections copy_gb_s, read_gb_s and write_gb_s statics.<p>Example M4 with 10 loops: "copy_gb_s": { "statistics": { "average": 106.65421233311835, "max": 106.70240696071005, "median": 106.65069297260811, "min": 106.6336774994254, "p90": 106.66606919223108, "p95": 106.68423807647056, "p99": 106.69877318386216, "stddev": 0.01930653530818627 }, "values": [ 106.70240696071005, 106.66203166240008, 106.64410802226159, 106.65831409449595, 106.64148106986977, 106.6482935780762, 106.63974821679058, 106.65896986001393, 106.6336774994254, 106.65309236714002 ] }, "read_gb_s": { "statistics": { "average": 115.83111228356601, "max": 116.11098114619033, "median": 115.84480882265643, "min": 115.56959026587722, "p90": 115.99667266786554, "p95": 116.05382690702793, "p99": 116.09955029835784, "stddev": 0.1768243167963439 }, "values": [ 115.79154681380165, 115.56959026587722, 115.60574235736468, 115.72112860271632, 115.72147129262802, 115.89807083151123, 115.95527337086908, 115.95334642887214, 115.98397172582945, 116.11098114619033 ] }, "write_gb_s": { "statistics": { "average": 65.55966046805113, "max": 65.59040040480241, "median": 65.55933583741347, "min": 65.50911885624045, "p90": 65.5840272860955, "p95": 65.58721384544896, "p99": 65.58976309293172, "stddev": 0.02388146120866979 },<p>Patterns benchmark also shows bit more of memory speeds. command: 'memory_benchmark -patterns -non-cacheable -count 5 -output patterns.JSON'<p>Example M4 from 100 loops: "sequential_forward": { "bandwidth": { "read_gb_s": { "statistics": { "average": 116.38363691482549, "max": 116.61212708384109, "median": 116.41264548721367, "min": 115.449510036971, "p90": 116.54143114134801, "p95": 116.57314206456576, "p99": 116.60095068065866, "stddev": 0.17026641589059727 } } } }<p>"strided_4096": { "bandwidth": { "read_gb_s": { "statistics": { "average": 26.460392735220456, "max": 27.7722419653915, "median": 26.457051473208285, "min": 25.519925729459107, "p90": 27.105171215736604, "p95": 27.190715938337473, "p99": 27.360449534513144, "stddev": 0.4730857335572576 } } } }<p>"random": { "bandwidth": { "read_gb_s": { "statistics": { "average": 26.71367836895143, "max": 26.966820487564327, "median": 26.69907406197067, "min": 26.49374804466308, "p90": 26.845236287807374, "p95": 26.882004355057887, "p99": 26.95742242818151, "stddev": 0.09600564296001704 } } } }<p>Thank you for reading :)
psc: The ps utility, with an eBPF twist and container context
Hacker News (score: 56)[CLI Tool] psc: The ps utility, with an eBPF twist and container context
Show HN: Hc: an agentless, multi-tenant shell history sink
Hacker News (score: 22)[Other] Show HN: Hc: an agentless, multi-tenant shell history sink This project is a tool for engineers who live in the terminal and are tired of losing their command history to ephemeral servers or fragmented `.bash_history` files. If you’re jumping between dozens of boxes, many of which might be destroyed an hour later, your "local memory" (the history file) is essentially useless. This tool builds a centralized, permanent brain for your shell activity, ensuring that a complex one-liner you crafted months ago remains accessible even if the server it ran on is long gone.<p>The core mechanism wants to be a "zero-touch" capture that happens at the connection gateway level. Instead of installing logging agents or scripts on every target machine, the tool reconstructs your terminal sessions from raw recording files generated by the proxy you use to connect. This "in-flight" capture means you get a high-fidelity log of every keystroke and output without ever having to touch the configuration of the remote host. It’s a passive way to build a personal knowledge base while you work.<p>To handle the reality of context-switching, the tool is designed with a "multi-tenant" architecture. For an individual engineer, this isn't about managing different users, but about isolating project contexts. It automatically categorizes history based on the specific organization or project tags defined at the gateway. This keeps your work for different clients or personal side-projects in separate buckets, so you don't have to wade through unrelated noise when you're looking for a specific solution.<p>In true nerd fashion, the search interface stays exactly where you want it: in the command line. There is no bloated web UI to slow you down. The tool turns your entire professional history into a searchable, greppable database accessible directly from your terminal.<p>Please read the full story [here](<a href="https://carminatialessandro.blogspot.com/2026/01/hc-agentless-multi-tenant-shell-history.html" rel="nofollow">https://carminatialessandro.blogspot.com/2026/01/hc-agentles...</a>)
Show HN: 1Code – Open-source Cursor-like UI for Claude Code
Hacker News (score: 24)[Other] Show HN: 1Code – Open-source Cursor-like UI for Claude Code Hi, we're Sergey and Serafim. We've been building dev tools at 21st.dev and recently open-sourced 1Code (<a href="https://1code.dev" rel="nofollow">https://1code.dev</a>), a local UI for Claude Code.<p>Here's a video of the product: <a href="https://www.youtube.com/watch?v=Sgk9Z-nAjC0" rel="nofollow">https://www.youtube.com/watch?v=Sgk9Z-nAjC0</a><p>Claude Code has been our go-to for 4 months. When Opus 4.5 dropped, parallel agents stopped needing so much babysitting. We started trusting it with more: building features end to end, adding tests, refactors. Stuff you'd normally hand off to a developer. We started running 3-4 at once. Then the CLI became annoying: too many terminals, hard to track what's where, diffs scattered everywhere.<p>So we built 1Code.dev, an app to run your Claude Code agents in parallel that works on Mac and Web. On Mac: run locally, with or without worktrees. On Web: run in remote sandboxes with live previews of your app, mobile included, so you can check on agents from anywhere. Running multiple Claude Codes in parallel dramatically sped up how we build features.<p>What’s next: Bug bot for identifying issues based on your changes; QA Agent, that checks that new features don't break anything; Adding OpenCode, Codex, other models and coding agents. API for starting Claude Codes in remote sandboxes.<p>Try it out! We're open-source, so you can just bun build it. If you want something hosted, Pro ($20/mo) gives you web with live browser previews hosted on remote sandboxes. We’re also working on API access for running Claude Code sessions programmatically.<p>We'd love to hear your feedback!
Show HN: Tusk Drift – Turn production traffic into API tests
Hacker News (score: 18)[Testing] Show HN: Tusk Drift – Turn production traffic into API tests Hi HN! In the past few months my team and I have been working on Tusk Drift, a system that records real API traffic from your service, then replays those requests as deterministic tests. Outbound I/O (databases, HTTP calls, etc.) gets automatically mocked using the recorded data.<p>Problem we're trying to solve: Writing API tests is tedious, and hand-written mocks drift from reality. We wanted tests that stay realistic because they come from real traffic.<p>versus mocking libraries: Tools like VCR/Nock intercept HTTP within your tests. Tusk Drift records full request/response traces externally (HTTP, DB, Redis, etc.) and replays them against your running service, no test code or fixtures to write/maintain.<p>How it works:<p>1. Add a lightweight SDK (we currently support Python and Node.js)<p>2. Record traffic in any environment.<p>3. Run `tusk run`, the CLI sandboxes your service and serves mocks via Unix socket<p>We run this in CI on every PR. Also been using it as a test harness for AI coding agents, they can make changes, run `tusk run`, and get immediate feedback without needing live dependencies.<p>Source: <a href="https://github.com/Use-Tusk/tusk-drift-cli" rel="nofollow">https://github.com/Use-Tusk/tusk-drift-cli</a><p>Demo: <a href="https://github.com/Use-Tusk/drift-node-demo" rel="nofollow">https://github.com/Use-Tusk/drift-node-demo</a><p>Happy to answer questions!
Show HN: Control Claude permissions using a cloud-based decision table UI
Show HN (score: 6)[Other] Show HN: Control Claude permissions using a cloud-based decision table UI We’ve been building visual rule engines (clear interfaces + API endpoints that help map input data to a large number of outcomes) for a while and had the fun idea lately to see what happens when we use our decision table UI with Claude’s PreToolUse hook.<p>The result is a surprisingly useful policy/gating layer– these tables let your team:<p>- Write multi-factor, exception-friendly policies (e.g. deny rm -rf / when --force; allow cleanup only in node_modules; ask on network calls like curl/wget; block kubectl delete or SQL DROP, each with a clear reason)<p>- Roll out policy changes instantly (mid-run, flip a risky operation from allow → ask; the next attempt across devs and agents is gated immediately– no git pull, agent restart, or coordination)<p>- Adopt lightweight governance that is somewhat agent agnostic and survives churn (MCP/skills/etc)- just add columns/rules as new tools and metadata show up<p>- Get a quick central utility to understand which tools are being used, which tools get blocked most often, and why
Poking holes into bytecode with peephole optimisations
Hacker News (score: 11)[Other] Poking holes into bytecode with peephole optimisations
New Safari developer tools provide insight into CSS Grid Lanes
Hacker News (score: 42)[Other] New Safari developer tools provide insight into CSS Grid Lanes
ChromaDB Explorer
Hacker News (score: 38)[Database] ChromaDB Explorer <a href="https://github.com/stepandel/chroma-explorer" rel="nofollow">https://github.com/stepandel/chroma-explorer</a>
Show HN: Claude Code Scheduler
Show HN (score: 6)[Other] Show HN: Claude Code Scheduler I found myself frequently wanting to schedule tasks in Claude Code (both one-time and recurring) so I built a CC plugin to help with that.<p>To install: /plugin marketplace add jshchnz/claude-code-scheduler /plugin install scheduler@claude-code-scheduler<p>Then just tell Claude what you want (some examples):<p>Every Wednesday at 3am find dead code: unused functions, unreachable branches, commented-out code, and unused imports. List by file with line numbers.<p>Schedule a code review every weekday at 9am. Review commits from the last 24 hours, check for bugs, security issues, error handling gaps, and code that needs comments. Summarize with file:line references.
Show HN: A fast CLI and MCP server for managing Lambda cloud GPU instances
Hacker News (score: 17)[CLI Tool] Show HN: A fast CLI and MCP server for managing Lambda cloud GPU instances I built an unofficial CLI and MCP server for Lambda cloud GPU instances.<p>The main idea: your AI agents can now spin up and manage Lambda GPUs for you.<p>The MCP server exposes tools to find, launch, and terminate instances. Add it to Claude Code, Cursor, or any agent with one command and you can say things like "launch an H100, ssh in, and run big_job.py"<p><pre><code> Other features: - Notifications via Slack, Discord, or Telegram when instances are SSH-ready - 1Password support for API keys - Also includes a standalone CLI with the same functionality </code></pre> Written in Rust. MIT licensed.<p>Note: This is an unofficial community project, not affiliated with Lambda.
Upgrading DrizzleORM logging with AsyncLocalStorage
Hacker News (score: 25)[Other] Upgrading DrizzleORM logging with AsyncLocalStorage
Luxury Yacht is a desktop app for managing Kubernetes clusters
Hacker News (score: 12)[Other] Luxury Yacht is a desktop app for managing Kubernetes clusters
Show HN: Grsh – A high-performance shell for FreeBSD written in Rust
Hacker News (score: 21)[CLI Tool] Show HN: Grsh – A high-performance shell for FreeBSD written in Rust I built GRSH because I wanted a modern, memory-safe shell that feels native to FreeBSD but works seamlessly on macOS.<p>While there are many shells out there, GRSH is my take on a minimal, fast, and secure command interpreter written entirely in Rust. It's designed for users who want the safety guarantees of Rust without the overhead of more bloated alternatives.<p>I'm currently working on the official FreeBSD port. I’d love to get feedback on the shell's behavior and performance from the community.<p>Github: <a href="https://github.com/antoniomalara301289/grsh" rel="nofollow">https://github.com/antoniomalara301289/grsh</a>