Your agents don't know what the others just built
Tether gives every agent a live view of what the rest are changing, so nobody rewrites the same function twice.
curl -fsSL https://tetherlab.io/install.sh | shInstalls the CLI, signs you in, and sets up your workspace.
Works with the agents you already run
Claude Code
OpenCode
Cursor
Codex CLI
Gemini CLI
Watch two agents coordinatein real time
Both agents plan to change the same file. Tether reads each plan and gives the go-ahead in turn, so the second builds on the first's work instead of over it.
Use Cases
Cross-machine coordination
- multi-laptop
- live intents
- single master
Agents on different developers' machines share one master. Coordination happens live, while the work is still a plan.
Read more
Plan-stage coordination
- plan-stage
- concept match
- rescope
The master matches every plan to concepts before code is written. Overlapping work surfaces while it is still words, and the agent routes around it.
Read more
Semantic concept catalogue
- domain tags
- global lookup
- self-evolving
Concepts replace files as the unit of meaning. Domains bias ranking. The catalogue updates with every accepted intent.
Read more
Plan-stage incident response
- pause master
- replay
- cross-machine revert
Freeze the swarm mid-flight. Replay any intent timeline post-mortem. Revert across machines, not just inside a repo.
Read more
Living shared world model
- onboarding
- catalogue read
- domain ranking
New agents read the catalogue, not the codebase. Tribal knowledge becomes structured. Ranking stays honest at scale.
Read more
Audit-grade by construction
- signed intents
- verdict trail
- export
Every line of agent code traces back to a signed intent. Verdicts and tool calls land on the timeline. Export on demand.
Read more
Cheap insurance for the agent spend you already have.
One per-seat bill, about half a Cursor seat. No per-agent fees, no per-intent gotchas.
- Most teams
Team
Up to 5 developers coordinating their agents.
$25/moper seat / month- Up to 5 members on one workspace
- Wrap Claude Code, Cursor, Codex CLI, Gemini CLI, and OpenCode
- Multi-agent coordination before anyone writes
- Live awareness notes when agents' work overlaps
- Verify-at-merge (early access): tests run before changes land
- Dependency graph and concept catalogue
- Card up front, cancel anytime in your 14 days
Teams of 6+
Volume pricing, SSO, and hands-on onboarding.
Customtailored to your team- Everything in Team, no seat cap
- Volume pricing past 5 seats
- SSO (Okta, Google, Azure)
- Priority support with an SLA
- Onboarding help to wire up your agents
- Self-hosted or VPC deployment on request
Plug Tether into the agent of your choice.
Tether ships as a Model Context Protocol server. It coordinates Claude Code, Cursor, Codex CLI, Gemini CLI, and OpenCode today, with more agents on the roadmap.
Others reconcile after. Tether coordinates before.
Review tools act on code that is already written. Tether aligns each agent's plan with everyone else's work before a line lands.
| Capability | Tether | Claude Code | Agent HQ | Cursor | Devin | Augment |
|---|---|---|---|---|---|---|
| Coordinates at the intent layer, before any code is written | ||||||
| Coordinates agents in-session or at merge | ||||||
| Plan-stage overlap detection | ||||||
| Cross-developer, cross-machine scope | ||||||
| Works across multiple agent vendors | ||||||
| Persistent shared concept registry | ||||||
| Wraps the agent CLI you already run | ||||||
| Signed audit trail per intent | ||||||
| Self-hostable coordination layer |
From the engineering log.
Posts on the shim, the master, and the agents we're wrapping.
- EngineeringTetherlab
Why a coordination layer beats more guardrails
Agents already follow instructions. They just don't follow each other. A shim that intercepts the plan does what review rules cannot.
Read - ArchitectureTetherlab
The sentinel pattern: extracting plans from any agent
We needed a structured plan from any CLI agent, with no SDK access. Two strings, one JSON blob, zero brittle parsers.
Read - Field notesTetherlab
Wrapping Claude Code: a 10-minute tour
Spin up a local master, point it at a worktree, hand it a session id. The agent starts under coordination on the first keystroke.
Read
Frequently asked.
If you don't find your question, email contact@tetherlab.io. Real humans, fast replies.
Run curl -fsSL https://get.tether.sh | sh, or brew install tetherlab/tap/tether. Then start any agent with tether wrap claude. The first run signs you in and connects a workspace, so you are coordinating within a minute.
