trinity

Trinity is the operating system for the AI-native company - that you own. Compounding intelligence your company owns.

Persistent agents that keep their memory, share what they learn, and ship their own improvements - governed by receipts: git history, audit logs, human gates. Open source and self-hosted: your infrastructure, your data, your compounding intelligence - not rented from a vendor.

Your coding agent writes the agent. Trinity runs it in production - with state, permissions and receipts. It runs agents on Claude Code, OpenAI Codex or Gemini CLI, organised into departments with roles and reporting lines, with Cornelius, our cognitive architecture for making the work compound, built in.

Apache 2.0 · independently pentested, UnderDefense Grade A · we run our own company on it.

Find this useful? ⭐ Star the repo - it's how other people find Trinity.

[!NOTE] 📦 Trinity 1.0 is the release where Trinity runs a company, not a console:

• a role for every agent, with objectives tied to a number the company actually tracks
• approvals in your Inbox - anything irreversible waits for a person, and the answer wakes the agent
• gated skills, approvers by role, skill sets you assign as one unit
• Projects with tasks, a log and a steward (Enterprise)
• rate the work, reply in-thread, one Skills tab, agents that pull their own repo

What's new → · Release notes → · Previous: v0.9.5

See it move

One task, end to end: a schedule fires, the agent works in its container, reaches an action it may not take alone, asks the right person in their Inbox, and finishes with a commit, an audit row and a metric point.

Watch more

• Trinity Architecture Explained - one scheduled task followed through the container, gate, delegation, approval, audit and breaker machinery (4:44)
• The Multi-Agent Platform I Run My Company On - a live fleet tour: delegation, memory, observability
• Autonomous Cornelius on Trinity - a second-brain agent running on its own
• From Zero to Deployed AI Agent - your first agent in 30 minutes
• Trinity v0.9.0 Release Review - the Workspace release, reviewed live

More in the workshop archive. Live and free, every Thursday.

Organised the way your company is

Agents live in departments, hold a role, and report along lines you draw. A role is a seat on record: who the agent serves, what it is for, and which objective it moves. Objectives bind to declared metrics, so "is it working" is a number with a date on it, not an impression. Nothing crosses a line you have not granted: an agent can call only the agents it has an edge to, and may change its own shape only with a grant.

# template.yaml - the agent declares the number it moves ...
metrics:
  - name: close_rate
    type: gauge
    unit: percent
    direction: up_good

# ... and the company's canon declares the objective that binds it to a seat
id: q4-close-rate
statement: Lift close rate to 35% by the end of Q4.
owner: role:revenue-lead
metrics:
  - { name: close_rate, direction: up, target: 35, by: 2026-12-31 }

Anything irreversible waits for a person

Mark a skill as gated and name who approves: the primary contact, or a role. From then on any request that names that skill - from a person, another agent, a schedule or a channel - is frozen before the agent sees it. The approver gets one card in their Inbox: the agent, the skill, the input, who asked. Approve runs it once; Discuss opens the thread; Reject ends it. The agent that asked is told how it ended. Guardrails bound agents by what they hold, not what they are told: hooks an agent cannot switch off, cost limits, loop budgets, a kill switch for outbound calls.

# the same gate, over MCP
set_skill_gate(agent="proposal-writer", skill="send-proposal", approver="role:revenue-lead")

Every agent has a history you can read

An agent is a git repository you own. Create it from github:owner/repo, let it commit its own work, pull it back, reset it to upstream. Every tool call lands in an append-only audit log; compliance mode adds an opt-in SHA-256 hash chain with verification. Every run is a row in the execution ledger with its trigger, cost and outcome, and you can search across all of them.

$ git log --oneline agents/proposal-writer
a1f3c9e Q4 proposal v3 - pricing from the October sheet
8e21bb0 Q4 proposal v2 - reviewed by revenue-lead
4d07a1c Lessons from the September proposals (kept by Cornelius)

One Workspace. Every agent.

A chat per topic, a conversation rail, a live Work card while the agent runs, deliverables you can rate, files by drag-and-drop, a canvas each agent can draw on, and voice over the current chat. The same agents answer in Slack, Telegram and WhatsApp, on a phone call, over a public chat link, over MCP and from the CLI. Projects (Enterprise) give a cross-agent piece of work its tasks, its log, its health and a steward that keeps it moving.

The work compounds

Cornelius is our cognitive architecture for making the work compound. It turns what agents do into knowledge the company keeps: lessons from a run become notes, notes become instructions, instructions become the next agent's starting point - all as files in repositories you own, without retraining a model. Swap the model and what the company has built up stays.

Inside your perimeter. On any model.

Three runtimes - Claude Code, OpenAI Codex, Gemini CLI - and a model picker per chat. Each agent is its own container on a network the data plane cannot see. Credentials are encrypted at rest and scrubbed from the runtime; no telemetry leaves unless you opt in. Export every agent, every log and every credential, and walk away whenever you choose.

Quick start

One line, on a machine you control (Docker and Docker Compose v2):

curl -fsSL https://raw.githubusercontent.com/abilityai/trinity/main/install.sh | bash

Then open http://localhost, claim the admin account, and connect a model in the setup overlay. Prefer to read what runs first: git clone https://github.com/abilityai/trinity && cd trinity && ./scripts/deploy/start.sh (--hosted pulls the prebuilt images; --unattended prints a generated admin password).

One click, in your own cloud account - the image brings itself up behind HTTPS in about ninety seconds:

[Deploy to DigitalOcean] [Launch on AWS Marketplace]

• DigitalOcean - Marketplace or the guided trinity-do-create.sh
• AWS - Marketplace, or build the AMI and CloudFormation stack yourself with packer/aws/README.md
• Vultr - Marketplace image
• Any server you can SSH into - /trinity:deploy-new-instance from the abilities marketplace

Let your agent install it. Tell Claude Code, Codex or any capable coding agent: "Install Trinity on my computer. Follow the runbook at https://raw.githubusercontent.com/abilityai/trinity/main/docs/AGENT_INSTALL_GUIDE.md."

Then deploy your first agent from the coding agent you already use:

/plugin marketplace add abilityai/abilities      # Claude Code; Codex and Gemini CLI via the CLI below
/plugin install trinity@abilityai
/trinity:connect                                 # instance URL + email code → MCP key
/trinity:onboard                                 # from any agent directory: check, package, deploy, start

Or from a terminal: pip install trinity-cli && trinity init && trinity deploy . (CLI reference). Or in the browser: Create Agent → a template, a GitHub repo, or a system manifest.

An AI agent reading this? AGENTS.md is your entry point: exact commands, key facts and a verification step for every path.

Up and running? ⭐ Star the repo. Hit a rough edge? File an issue - we read them.

Open source is the whole platform. Enterprise adds governance.

Open core: Enterprise includes everything in open source. The private modules live in optional submodules; cloning without them needs no credentials (docs/ENTERPRISE.md). Get enterprise access →

Build on it

A system from one manifest - departments, agents, permissions and schedules, deployed together:

name: revenue
agents:
  revenue-lead:
    template: github:abilityai/agent-corbin
    schedules: [{ name: weekly-pipeline, cron: "0 9 * * 1", message: "/pipeline-review" }]
  proposal-writer:
    template: github:abilityai/agent-ruby
    folders: { expose: true, consume: true }
permissions:
  preset: full-mesh

deploy_system over MCP, or POST /api/systems/deploy. Multi-Agent System Guide →

Templates and import - start from the template registry, any GitHub repo, or a local directory. Skills library - a tag-pinned community library (trinity-skills) plus your own repos; assign a skill or a set to any agent, re-injected fleet-wide when the library moves. Plugins - the abilities marketplace covers scaffold, develop, deploy and iterate from Claude Code:

MCP - every Trinity instance is an MCP server (http://<instance>:8080/mcp, agent- and user-scoped keys) for agents, schedules, executions, projects, metrics, canvases, skills and more. No instance yet? npx -y trinity-docs-mcp answers questions about Trinity from any MCP client. MCP reference →

Architecture

One host runs the control plane - a Vue frontend, a FastAPI backend, the MCP server, the scheduler, Redis for secrets and locks, and PostgreSQL for data - on a network the agents cannot reach. Each agent is its own container on a second network, with its repo, its credentials and its schedule. Operators reach the UI and API over your VPN; public users and channel webhooks reach only routes you publish through an outbound tunnel, so the host opens no inbound ports. Logs ship through Vector; metrics export over OpenTelemetry. Ports, services and profiles: Deployment Guide · docs/memory/architecture.md.

Database. Trinity 1.0 runs on PostgreSQL. The bundled container comes up with the stack; point DATABASE_URL at your own instance to use one you already run. SQLite support ended on 2026-09-01; an older instance migrates with the Trinity Ops Agent's /migrate-to-postgres.

We run our company on it

Ability AI runs on Trinity: 41 agents across product, engineering, docs, operations and the company brain, as of 2026-10-14. Every number in this README is dated for that reason.

Security - Grade A (Excellent) in an independent web application penetration test by UnderDefense, April 2026; all critical and high findings remediated. Attestation letter → · SECURITY.md

Documentation

• AGENTS.md - entry point for AI agents: task router, key facts, verification steps
• User documentation - the Workspace, agents, roles and approvals, scheduling, channels, the API
• Trinity Compatible Agent Guide - what an agent repository needs to run here
• Deployment Guide · PostgreSQL setup · Versioning & upgrades
• CLI reference · MCP server · Multi-Agent System Guide
• Abilities marketplace · Skills library · Template registry · Trinity Ops Agent
• Testing strategy · Known issues · Contributing

Community & support

• Ask Trinity: docs.ability.ai - the documentation, with an agent you can ask
• Issues: bugs and core maintenance · Discussions: ideas, questions, show and tell
• Workshops: live every Thursday, full archive · Discord: join
• Security: SECURITY.md · Commercial: hello@ability.ai

License

Apache License 2.0 - free for any use, commercial included, with an explicit patent grant. Enterprise modules are under a separate commercial licence. See CONTRIBUTING.md to contribute; development setup lives there now.