Self-hosted · Open source · Apache-2.0
Agentic Resource Registry
A registry for your coding agent resources, with an insight engine built in. Set it up, define the scope, and share your Skills, MCPs and Agents with your team.
01:47 am
Three teams wrote the same code review skill this quarter. None of them knew.
Claude Code · Codex · Cursor · Kiro · Goose
Her company runs all of them. Every team keeps its own copies.
Maya, platform team
She decided that was the last time.
Every skill, MCP and agent her team uses now lives in one place.
01 · Registry
Every skill, MCP server, hook and prompt your teams build, versioned and reviewed in one place. Pick a harness and pull the whole agent with one command.
02 · ARD Discover
Describe the task, not the package name. ARR speaks Agentic Resource Discovery, so any ARD client can ask your registry what exists.
03 · Sharing
Teamspaces give every team its own namespace. Keep one private or make it public after review, and everything in it installs as team/agent.
04 · Traces
Every session from every harness becomes a structured trace. Prompts, tool calls, MCP round trips, tokens and errors, captured by hooks.
05 · InsightsInsightsARR reads each agent’s real sessions and writes a report on it: what keeps going wrong, the numbers that prove it, and the prompt changes that fix it. You can apply a fix as a new, reviewed version.
Insights live on each agent. The report names what is going wrong, the numbers that prove it, and the prompt changes that fix it.
One agent · every harness
Write it once. It lands the right way in every tool your team runs.
Agentic coding
The agentic coding paradigm shift.
You no longer write every line. You direct agents in loops, steer them, and ship. Watch one work on this very section.
claude-code · ~/observal-site
hooks → observal 0 events
- Direct, don't typeSet the goal in plain language. The agent scopes the work and writes it.
- Steer the loopIt proposes, you correct. One sentence redirects it mid-flight, with no code to undo.
- Ship on your termsThe output reflects your intent, not the agent's assumptions. Every trace proves it.
Own your stack
Self-hosted. Open source. Yours.
One command brings up the registry, analytics and databases with Docker Compose. Postgres, ClickHouse and Redis run on your infrastructure, so components, sessions and data never leave it. Apache-2.0, no lock-in.
maya@studio · ~
Questions
What teams ask before they roll it out.
What is Agentic Resource Registry (ARR)?
ARR is a self-hosted, open source registry for the resources your coding agents use: MCP servers, skills, hooks, prompts and sandboxes, bundled into agents. Teams publish them, review them, and pull approved agents into their coding tool of choice with one command. ARR was called Observal until late 2026.
Which coding agents does ARR work with?
Claude Code, Codex CLI, Cursor, Kiro, GitHub Copilot, Copilot CLI, OpenCode, Goose, Pi and Antigravity. ARR writes each tool’s own configuration format, so one agent definition works in all of them.
How is ARR different from a public MCP registry?
Public directories list whatever anyone published. ARR is your organization’s own registry: private teamspaces, review before anything is approved, versions, and installs tailored to each coding tool. It also traces sessions and speaks Agentic Resource Discovery (ARD), so any ARD client can ask it what exists for a task.
What are InsightsInsightsARR reads each agent’s real sessions and writes a report on it: what keeps going wrong, the numbers that prove it, and the prompt changes that fix it. You can apply a fix as a new, reviewed version.?
Insights are reports ARR writes about each agent from its real sessions: what keeps going wrong, the numbers that prove it, and the prompt changes that fix it. Applying the suggestions creates a new version of the agent that goes through review before anyone pulls it.
Where does my data live?
On your infrastructure. ARR runs with Docker Compose alongside PostgreSQL, ClickHouse and Redis, so components, sessions and traces never leave your servers.
Is ARR free?
Yes. ARR is open source under the Apache-2.0 license and free to self-host. If you want help rolling it out across your teams, book a demo.