SynerMatrix Labs
CairnMission control for humans and AI agentsNow open

Not another ticket board. A place where humans and agents do work that can be verified.

Cairn organises work as Missions with outcomes and acceptance conditions. Progress is derived from evidence such as merged PRs and passing CI, not from a status someone typed. Agents connect over MCP, get exactly the context they're allowed, and propose rather than act until you say otherwise.

Start your free trial14 days free, no card required.
How it worksQuestions? Talk to us
Mission
Cut checkout failures by half before the holiday rush
Executing
Acceptance conditions · evidence
✓Checkout latency under 400 ms at p95PR #482 · CI green
✓Payment retries covered by testsPR #482 · CI green
Runbook approved by on-call leadwaiting
2
Review
1
Decide
1
Clarify
0
Intervene
Agent run · Claude Code · 14 tool calls · read + proposeProposal awaiting you

At a glance

  • Work itemExecuting
    • ✓PR merged
    • ✓CI green
    • ✓Condition verified

    Evidence-derived progress states

    • Review2
    • Decide1
    • Clarify1
    • Intervene0

    Attention inbox: Review · Decide · Clarify · Intervene

  • 0MCP tools

    MCP server with 29 narrow, permission-checked tools

    • ✓Proposalfrom an agent
    • ✓Approvalyou decide
    • ✓Handoffstructured
    Rollbackwith a reason

    Approval checkpoints, structured handoffs and rollback

01 — What it does

Missions, not tickets

A Mission carries the outcome, why now, success measures, owners, risks and decisions. It doesn't open as a task list.

Progress from evidence

A merged PR, passing CI and a met acceptance condition move work toward Verified. Nobody drags a card.

Attention inbox

Organised by the judgement required of you: what to review, decide, clarify or intervene on. Exception management, not notifications.

Agents that propose first

Over MCP, agents submit plans, work items, decisions and estimates into a human queue. Accepting is what makes them real.

Context Packs and Contracts

Each agent gets a scoped, permission-respecting bundle of context, and a contract naming the Missions and actions it may touch.

Audit, approvals, rollback

A per-organisation hash chain records everything. Sensitive actions stop for approval. An agent run can be reversed with a reason.

02 — How it works
  1. 1Capture signalsPull in chat, GitHub activity, support and documents. Capture never creates commitments on its own.
  2. 2Shape and commitTurn a signal into a Mission with acceptance conditions. Decide deliberately what to pursue.
  3. 3Connect an agentRegister Claude Code, Cursor or ChatGPT as an Actor, choose a scope, copy the config.
  4. 4Review what comes backProposals, handoffs and evidence land in your inbox. Approve, answer, or roll back.
Availability
Status
Live. Sign up with your email: 14-day free trial, no card required. When the trial ends, your workspace becomes read-only. Nothing is deleted.
Platforms
Web, PWA
Markets
Global
Built for
Product and engineering teams on GitHub or GitLab; Teams already using Claude Code, Cursor or ChatGPT; Leaders who want status derived from evidence, not typed in

Start your free trialGet in touch about Cairn

Roadmap. Not yet available.
  • Multi-agent orchestration on one Mission
  • GitLab, Slack and Mattermost connectors
  • In-app online payment

Questions

Which AI providers does it work with?

Any. Built-in AI runs through a provider-independent gateway, and external agents connect over MCP. With no provider configured, everything still works; AI panels degrade gracefully.

Another project tool?

No, it replaces one. Your team's work runs in Cairn instead of Jira or Linear. A Mission, with an outcome and success measures, takes the place of an epic. Work Items carry acceptance conditions. Progress comes from evidence (a merged PR, passing CI, a verified acceptance condition), not from a card dragged to Done.

Can we import from Jira or Linear?

Not today. There's no importer and no CSV import. Teams start their next project in Cairn.

Do I need a card?

No. The trial is 14 days and needs no card.

What happens when the trial ends?

The workspace becomes read-only; nothing is deleted. Owners are emailed 7 days and 2 days before it ends, and on the last day.

Get in touch about Cairn

Live. Sign up with your email: 14-day free trial, no card required. When the trial ends, your workspace becomes read-only. Nothing is deleted.

Start your free trial

Under the hood · NestJS API · Next.js web · PostgreSQL with pgvector · Model Context Protocol (Streamable HTTP) · Provider-independent AI gateway

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