🛠️ All DevTools

[Other] OpenMetadata is a unified metadata platform for data discovery, data observability, and data governance powered by a central metadata repository, in-depth column level lineage, and seamless team collaboration.

[Monitoring/Observability] 🪢 Open source LLM engineering platform: LLM Observability, metrics, evals, prompt management, playground, datasets. Integrates with OpenTelemetry, Langchain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

[Other] Show HN: Gemini Plugin for Claude Code I built a plugin that lets Claude Code delegate work to Gemini CLI.<p>I started this after finding myself reaching for Gemini more often on long context repo work. I have been especially liking Gemini’s codebaseinvestigator for long context.<p>This is inspired by openai&#x2F;codex-plugin-cc.<p>Code Review, adversarial review. Under the hood its Gemini CLI over ACP<p>Would love feedback from people using Claude Code, Gemini CLI, or ACP. I am especially curious whether this feels useful outside my own workflow.<p>Its a great combo with Opus 4.7 + Gemini 3.1 workflows

[Other] A curated collection of 1000+ agent skills from official dev teams and the community, compatible with Claude Code, Codex, Gemini CLI, Cursor, and more.

[CLI Tool] Show HN: gcx – The Official Grafana Cloud CLI Hi HN,<p>We’re excited to share gcx, a new CLI we’ve been building for Grafana Cloud.<p>With the rise of agentic coding tools like Claude Code and Codex we&#x27;re building faster than ever, but these agents are often blind to what’s actually happening in production.<p>gcx brings the full power of Grafana Cloud observability to your terminal. Query production. Investigate alerts. Let the Assistant root-cause issues. Ship fixes with observability built in. Without leaving your editor. gcx also comes packaged with a skills bundle that allow agents to see and act on your production telemetry. You can ask an agent to root-cause a latency spike, and it can actually fetch the telemetry, analyze the spans, and suggest a fix—all while having the full context of your codebase.<p>Do check it out and give us feedback!<p>Github link: <a href="https:&#x2F;&#x2F;github.com&#x2F;grafana&#x2F;gcx" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;grafana&#x2F;gcx</a>

[Other] Show HN: Almanac MCP, turn Claude Code into a Deep Research agent I am Rohan, and I have grown really frustrated with CC&#x27;s search and read tools. They use Haiku to summarise all the search results, so it is really slow and often ends up being very lossy.<p>I built this MCP that you can install into your coding agents so they can actually access the web properly.<p>Right now it can:<p>- search the general web<p>- search Reddit<p>- read and scrape basically any webpage<p>Install it:<p>npx openalmanac setup<p>The MCP is completely free to use. We have also built a central store where you can contribute things you learned while exploring. If you find something useful, you can contribute it to the encyclopedia we&#x27;re building at Almanac using the same MCP.

[Other] Claude Code to be removed from Anthropic's Pro plan? <a href="https:&#x2F;&#x2F;x.com&#x2F;TheAmolAvasare&#x2F;status&#x2F;2046725498592722972" rel="nofollow">https:&#x2F;&#x2F;x.com&#x2F;TheAmolAvasare&#x2F;status&#x2F;2046725498592722972</a><p><a href="https:&#x2F;&#x2F;xcancel.com&#x2F;TheAmolAvasare&#x2F;status&#x2F;2046725498592722972" rel="nofollow">https:&#x2F;&#x2F;xcancel.com&#x2F;TheAmolAvasare&#x2F;status&#x2F;204672549859272297...</a>

[Other] Zindex – Diagram Infrastructure for Agents

[CLI Tool] Show HN: Hydra – Never stop coding when your AI CLI hits a rate limit I built Hydra because I kept losing my flow when Claude Code hit usage limits mid-task. I would copy context, open another tool, and then re-explain everything. This would be super annoying for me.<p>Hydra wraps your AI coding CLIs (Claude Code, Codex, OpenCode, Pi, or any terminal-based tool) in a single command. It monitors terminal output for rate limit patterns, and when one provider runs out, you switch to another with one keypress. Your conversation history, git diff, and recent commits are automatically copied to your clipboard so you can paste and keep going.<p>The fallback chain is configurable. Mine goes Claude Code → OpenCode (free Gemini) → Codex → Pi (free Gemini). The free tiers alone give you ~3000 requests&#x2F;day, so even after burning through paid limits you can keep working.<p>Key details: Full PTY passthrough you see the exact same TUI as running the CLI directly hydra switch from another terminal signals ALL running sessions (rate limits are account-wide) Context extraction parses Claude Code&#x27;s JSONL session files for real conversation history, not just recent output Any CLI that runs in a terminal works as a provider Single Go binary, ~200 lines of core logic<p><a href="https:&#x2F;&#x2F;github.com&#x2F;saadnvd1&#x2F;hydra" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;saadnvd1&#x2F;hydra</a><p>Nothing amazing, but wanted to share with others in case it&#x27;s useful. Feel free to modify it as you see fit.

[Other] The Vercel breach: OAuth attack exposes risk in platform environment variables <i>Vercel April 2026 security incident</i> - <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=47824463">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=47824463</a> - April 2026 (485 comments)<p><i>A Roblox cheat and one AI tool brought down Vercel&#x27;s platform</i> - <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=47844431">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=47844431</a> - April 2026 (145 comments)

[Other] Show HN: Daemons – we pivoted from building agents to cleaning up after them For almost two years, we&#x27;ve been developing Charlie, a coding agent that is autonomous, cloud-based, and focused primarily on TypeScript development. During that time, the explosion in growth and development of LLMs and agents has surpassed even our initially very bullish prognosis. When we started Charlie, we were one of the only teams we knew fully relying on agents to build all of our code. We all know how that has gone — the world has caught up, but working with agents hasn&#x27;t been all kittens and rainbows, especially for fast moving teams.<p>The one thing we&#x27;ve noticed over the last 3 months is that the more you use agents, the more work they create. Dozens of pull requests means older code gets out of date quickly. Documentation drifts. Dependencies become stale. Developers are so focused on pushing out new code that this crucial work falls through the cracks. That&#x27;s why we pivoted away from agents and invented what we think is the necessary next step for AI powered software development.<p>Today, we&#x27;re introducing Daemons: a new product category built for teams dealing with operational drag from agent-created output. Named after the familiar background processes from Linux, Daemons are added to your codebase by adding an .md file to your repo, and run in a set-it-and-forget-it way that will make your lives easier and accelerate any project. For teams that use Claude, Codex, Cursor, Cline, or any other agent, we think you&#x27;ll really enjoy what Daemons bring to the table.

[Other] CrabTrap: An LLM-as-a-judge HTTP proxy to secure agents in production <a href="https:&#x2F;&#x2F;www.brex.com&#x2F;journal&#x2F;building-crabtrap-open-source" rel="nofollow">https:&#x2F;&#x2F;www.brex.com&#x2F;journal&#x2F;building-crabtrap-open-source</a>

[API/SDK] Show HN: GoModel – an open-source AI gateway in Go; 44x lighter than LiteLLM Hi, I’m Jakub, a solo founder based in Warsaw.<p>I’ve been building GoModel since December with a couple of contributors. It&#x27;s an open-source AI gateway that sits between your app and model providers like OpenAI, Anthropic or others.<p>I built it for my startup to solve a few problems:<p><pre><code> - track AI usage and cost per client or team - switch models without changing app code - debug request flows more easily - reduce AI spendings with exact and semantic caching </code></pre> How is it different?<p><pre><code> - ~17MB docker image - LiteLLM&#x27;s image is more than 44x bigger (&quot;docker.litellm.ai&#x2F;berriai&#x2F;litellm:latest&quot; ~ 746 MB on amd64) - request workflow is visible and easy to inspect - config is environment-variable-first by default </code></pre> I&#x27;m posting now partly because of the recent LiteLLM supply-chain attack. Their team handled it impressively well, but some people are looking at alternatives anyway, and GoModel is one.<p>Website: <a href="https:&#x2F;&#x2F;gomodel.enterpilot.io" rel="nofollow">https:&#x2F;&#x2F;gomodel.enterpilot.io</a><p>Any feedback is appreciated.

[Other] "RAG-Anything: All-in-One RAG Framework"

[Other] Code search MCP for Claude Code. Make entire codebase the context for any coding agent.

[Other] Show HN: VidStudio, a browser based video editor that doesn't upload your files Hi HN, I built VidStudio, a privacy focused video editor that runs in the browser. I tried to keep it as frictionless as possible, so there are no accounts and no uploads. Everything is persisted on your machine.<p>Some of the features: multi-track timeline, frame accurate seek, MP4 export, audio, video, image, and text tracks, and a WebGL backed canvas where available. It also works on mobile.<p>Under the hood, WebCodecs handles frame decode for timeline playback and scrubbing, which is what makes seeking responsive since decode runs on the hardware decoder when the browser supports it. FFmpeg compiled to WebAssembly handles final encode, format conversion, and anything WebCodecs does not cover. Rendering goes through Pixi.js on a WebGL canvas, with a software fallback when WebGL is not available. Projects live in IndexedDB and the heavy work runs in Web Workers so the UI stays responsive during exports.<p>Happy to answer technical questions about the tradeoffs involved in keeping the whole pipeline client-side. Any feedback welcome.<p>Link: <a href="https:&#x2F;&#x2F;vidstudio.app&#x2F;video-editor" rel="nofollow">https:&#x2F;&#x2F;vidstudio.app&#x2F;video-editor</a>

[Database] A type-safe, realtime collaborative Graph Database in a CRDT

[Other] Anthropic says OpenClaw-style Claude CLI usage is allowed again

[Other] Show HN: Palmier – bridge your AI agents and your phone Hi HN — I built Palmier.<p>Palmier bridges your AI agents and your phone.<p>It does two things:<p>1. It lets you use your phone to directly control AI agents running on your computer, from anywhere.<p>2. It gives your AI agents access to your phone, wherever you are — including things like push notifications, SMS, calendar, contacts, sending email, creating calendar events, location, and more.<p>A few details:<p>* Supports 15+ agent CLIs<p>* Supports Linux, Windows, and macOS<p>* What runs on your computer and your phone is fully open source<p>* Works out of the box — no need to set up GCP or API keys just to let agents use phone capabilities<p>* Your phone can act as an agent remote: start tasks, check progress, review results, and respond to requests while away from your desk<p>* Your phone can also act as an agent tool: agents can reach into phone capabilities directly when needed<p>* Optional MCP server: if you want, Palmier exposes an MCP endpoint so your agent can access phone capabilities as native MCP tools. This is optional — you can also use Palmier directly from the phone app&#x2F;PWA, with those capabilities already built in<p>* Still in alpha stage, with bugs. Opinions and bug reports very welcome<p>The basic idea is that AI agents become much more useful if they can both:<p>* interact with the device you actually carry around all day<p>* be controlled when you are away from your computer<p>Palmier is my attempt at that bridge.<p>It already works with agent CLIs like Claude Code, Gemini CLI, Codex CLI, Cursor CLI, OpenClaw, and others. You can run tasks on demand, on a schedule, or in response to events.<p>Would especially love feedback on:<p>* whether this feels genuinely useful<p>* which phone capabilities are most valuable<p>* which agent CLIs I should support next<p>* what feels broken, awkward, or confusing<p>Site: <a href="https:&#x2F;&#x2F;www.palmier.me" rel="nofollow">https:&#x2F;&#x2F;www.palmier.me</a><p>Github:<p>* <a href="https:&#x2F;&#x2F;github.com&#x2F;caihongxu&#x2F;palmier" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;caihongxu&#x2F;palmier</a><p>* <a href="https:&#x2F;&#x2F;github.com&#x2F;caihongxu&#x2F;palmier-android" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;caihongxu&#x2F;palmier-android</a><p>Happy to answer questions.

[Other] How to make a fast dynamic language interpreter