DSH Weave

> A private, peer-to-peer fabric for connecting DeepSeek Harness nodes across machines.

DSH Weave turns a collection of local DSH installations into an intentional network: nodes can discover trusted peers, exchange session-aware events, hand off work, and recover after a connection drops — without placing a central server in the execution path.

Product boundary

dsh-bridge is the local contract: it connects sessions in one DSH host. dsh-weave carries approved messages between those hosts. dsh-chat is the optional Web group-chat surface above both layers.

DSH node A ── dsh-bridge ── dsh-weave ── Iroh ── Iroh ── dsh-weave ── dsh-bridge ── DSH node B

Iroh supplies authenticated, encrypted QUIC connections, direct peer-to-peer paths where possible, and relay fallback where required. Weave owns DSH host identity, host trust, endpoint refresh, reachability, the workspace/session directory, and authenticated request delivery. Higher-level plugins own their domain membership and capabilities; for example, Chat owns rooms and room capabilities.

The remote directory reports agent state as idle, running, or offline. Host reachability is tracked separately as unknown, connecting, online, or offline; waking a persisted session remains a dsh-bridge responsibility.

Install

The transport MVP provides an Iroh endpoint, ticket exchange, explicit peer trust, and a message frame that is handed to dsh-bridge when both plugins run in the same host. It deliberately does not auto-trust a peer that merely knows an endpoint address.

dsh plugin --profile web add dsh-weave@next

import {
  DSH_WEAVE_ALPN,
  DSH_WEAVE_PROTOCOL_VERSION,
  DSH_WEAVE_STAGE,
} from "dsh-weave";

console.log(DSH_WEAVE_ALPN);             // dsh-weave/1
console.log(DSH_WEAVE_PROTOCOL_VERSION); // 1
console.log(DSH_WEAVE_STAGE);            // design-preview

The first protocol

Every node has a persistent network identity. Joining a mesh requires an expiring invite and an explicit local approval. A transport connection alone never grants permission to execute a task.

Security posture

• End-to-end encryption is supplied by Iroh's authenticated QUIC transport.
• A mesh allowlist and capability grants sit above transport identity.
• Remote work is denied by default until the receiving node approves it.
• Secrets, provider credentials, and raw filesystem access never travel as ordinary session events.
• A self-hosted relay/discovery deployment is the production path; public relays are for development only.

See [architecture](./docs/ARCHITECTURE.md), [wire protocol](./docs/PROTOCOL.md), and [security model](./docs/SECURITY.md).

Pairing and delivery

Exchange each node's ticket out of band, then explicitly trust it before sending. dsh-weave rejects a frame from an untrusted endpoint even though Iroh has already encrypted the connection. This separates transport identity from DSH authorization. The node's Iroh identity is persisted locally under ~/.dsh/dsh-weave/identity.json with owner-only permissions, so a restart does not silently create a new peer identity. Explicitly trusted peer IDs and their last accepted endpoint tickets are also stored locally with owner-only permissions, so paired-host discovery survives a restart. An endpoint ticket also carries addressing hints; trust a fresh ticket again when a peer changes its reachable addresses. The trusted-host /dsh-weave/ticket RPC exposes that current ticket for pairing UIs.

The Web profile contributes a dedicated Settings → Weave page. It shows the current Iroh ticket and relay mode, accepts trusted peer tickets, and lists paired endpoint identities. Higher-level plugins such as dsh-chat consume the paired-host workspace/session catalog and send by stable host id. They never receive or persist peer endpoint tickets and do not own transport identity, pairing, or relay policy.

Roadmap

• [x] Publish the v1 protocol contract
• [x] dsh-bridge local event adapter
• [x] Iroh endpoint adapter and ticket-based trust flow
• [ ] Remote task request / approval / result streams
• [ ] Durable outbox and reconnect replay
• [ ] Self-hosted relay and discovery guidance

Development

npm run check

License

MIT © Xiang Bai