---
summary: "Publish redacted local coding sessions into a shared read-only OpenClaw catalog"
read_when:
  - Sharing a Claude Code or Codex session with trusted Gateway operators
  - Configuring an authenticated session-ingest endpoint without connecting a node
  - Auditing what Beam stores and exposes
title: "Beam plugin"
---

The bundled `beam` plugin receives a sanitized coding-session snapshot over authenticated HTTP and presents it in the Control UI's existing external-session catalog. The source computer sends text out; OpenClaw never connects back to that computer and receives no filesystem, terminal, tool, or node capability.

Beam ships with OpenClaw but is disabled by default. When enabled, it registers:

- `POST /api/v1/beam/sessions`
- the read-only **Beam** session catalog in the Control UI sidebar

## Enable

```bash
openclaw plugins enable beam
openclaw gateway restart
```

Equivalent config:

```json5
{
  plugins: {
    entries: {
      beam: { enabled: true },
    },
  },
}
```

Disable the plugin when the ingest route is not needed:

```bash
openclaw plugins disable beam
openclaw gateway restart
```

## Authentication

The receiver uses normal Gateway HTTP authentication. It is not an anonymous upload endpoint.

- With `gateway.auth.mode: "trusted-proxy"`, send requests through the configured identity-aware proxy. Beam relies on Gateway authentication but does not persist proxy identity headers as uploader attribution.
- With token or password auth, send `Authorization: Bearer <gateway-token-or-password>`.
- Do not enable Beam with `gateway.auth.mode: "none"` unless another private ingress fully authenticates every request.

A Cloudflare Access-protected deployment can authenticate a local CLI without exposing a GitHub token:

```bash
cloudflared access login https://gateway.example.com
cloudflared access curl https://gateway.example.com/api/v1/beam/sessions \
  -H 'Content-Type: application/json' \
  --data-binary @sanitized-beam.json
```

The `beam` skill in [openclaw/agent-skills](https://github.com/openclaw/agent-skills) handles local transcript discovery, redaction, Cloudflare Access login, and upload for Claude Code and Codex.

## Request

```http
POST /api/v1/beam/sessions
Content-Type: application/json
```

```json
{
  "version": 1,
  "beamId": "0123456789abcdef0123456789abcdef",
  "source": "claude",
  "title": "Fix the upload flow",
  "updatedAt": "2026-07-20T12:00:00.000Z",
  "completed": false,
  "items": [
    { "type": "userMessage", "text": "Fix the upload flow." },
    { "type": "agentMessage", "text": "Implemented and tested." },
    { "type": "other", "text": "3 read, 2 write, 1 execute; raw tool outputs dropped: 4" }
  ]
}
```

The schema is closed. Beam rejects unknown fields, invalid item types, empty text, more than 200 items, item text over 6,000 characters, non-JSON requests, and bodies over 56 KiB.

A successful upload returns the stable Beam id and a relative Control UI URL:

```json
{
  "ok": true,
  "beamId": "0123456789abcdef0123456789abcdef",
  "url": "/chat/main?catalog=beam&host=gateway&thread=<beamId>"
}
```

Uploading the same `beamId` updates the existing catalog row. A completed upload sets the row status to `completed`; earlier updates display as `live`.

## Storage and visibility

Beam stores sanitized payloads in OpenClaw's shared SQLite-backed plugin state:

- at most 500 sessions
- seven-day retention refreshed by each update
- oldest-entry eviction when the catalog reaches its bound
- server receipt time controls catalog ordering; clients cannot move themselves ahead with a forged timestamp

The catalog is intentionally shared across the Gateway operator domain. Every client with `operator.read` can view every beamed session, while uploads require `operator.write` or `operator.admin`. Uploader identity is not retained, and any write-authorized operator that knows a Beam id can update that row. OpenClaw operator scopes are not tenant isolation; use a separate Gateway when sessions must be isolated between teams or machines.

## Security boundary

Beam is passive session publication, not remote control.

- It has no `continueSession`, archive, terminal, tool, or node capability.
- It accepts text-only normalized transcript items, not HTML, scripts, archives, attachments, or server-fetched URLs.
- The official skill removes raw tool results, reasoning, prompts, local paths, credentials, cookies, and auth material before upload.
- The receiver still treats every transcript as untrusted text. Copying a beamed transcript into a new agent session is a separate operator action.
- Requests are rate-limited and concurrency-limited before the body is read.

## Mirroring

Beam can also act as the sender: an opt-in mirror that continuously publishes this machine's active local coding sessions (Claude Code, Codex, and other registered session catalogs) to a remote Beam receiver, such as a shared team Gateway. Teammates then watch near-live session transcripts in the remote Control UI without any access to the source machine.

```json5
{
  plugins: {
    entries: {
      beam: {
        enabled: true,
        config: {
          mirror: {
            endpoint: "https://team.example.com/api/v1/beam/sessions",
            token: { source: "env", provider: "default", id: "BEAM_TEAM_TOKEN" },
            catalogs: ["claude", "codex"],
          },
        },
      },
    },
  },
}
```

- `endpoint` (required): the final remote receiver URL. Redirect responses (301, 302, 303, 307, and 308) are not followed; configure the destination URL directly. After a redirect, repeated polls are suppressed for the current mirror service instance. A Gateway restart probes the configured endpoint once again so a receiver corrected at the same URL can recover. HTTPS is enforced for non-loopback hosts; plaintext `http://` is accepted only for `localhost`/`127.0.0.1`/`::1` development.
- `token`: Gateway credential for the remote receiver, sent as `Authorization: Bearer`. Accepts a plain string or a secret reference; a configured-but-unresolved token pauses mirroring instead of sending unauthenticated requests. Deployments fronted by an identity-aware proxy need an ingress that accepts this bearer credential.
- `catalogs` (required): the session catalog ids to mirror, as explicit per-catalog consent — an omitted or empty list mirrors nothing. The local `beam` receiver catalog is always excluded so two mirrored Gateways cannot re-mirror each other's rows.
- `pollSeconds` (default 30, minimum 10): how often the mirror scans local catalogs.
- `activeWindowMinutes` (default 180): sessions with newer activity than this window count as live and stay mirrored; when a session goes idle past the window the running mirror service retries its final `completed` update until the receiver accepts it or the seven-day retention window ends. Retry state is process-local: a Gateway restart clears pending terminal retries, so the remote row remains live until its normal seven-day retention expires.

The mirror applies the same redaction contract as the beam skill before anything leaves the machine: only user and agent message text is uploaded, while reasoning, tool calls, tool results, and raw payloads are replaced with compact counts. Snapshots are capped to the receiver limits (200 items, 56 KiB), dropping oldest entries first and marking the upload `truncated`. Sessions on paired nodes are not mirrored; the mirror shares only sessions from this Gateway's machine, newest 32 first.

## Troubleshooting

`404 Not Found`

: The Beam plugin is disabled, the Gateway has not restarted since enablement, or the request is reaching another Gateway.

`401 Unauthorized`

: The request did not satisfy Gateway HTTP auth. Check the bearer credential or trusted-proxy/Access session.

`405 Method Not Allowed`

: The receiver accepts only `POST`.

`413 Payload Too Large`

: The serialized request exceeded 56 KiB. The official skill drops older sanitized messages until the snapshot fits.

`429 Too Many Requests`

: The authenticated client exceeded the bounded request or concurrency limit. Retry after the current minute window.

`beam mirror upload blocked ... receiver returned redirect`

: The configured mirror endpoint returned a redirect. Beam does not follow redirects and suppresses repeated attempts for the current service instance; set `mirror.endpoint` to the final receiver URL. A Gateway restart probes the configured endpoint once again.

## Related

- [Control UI](/web/control-ui)
- [Operator scopes](/gateway/operator-scopes)
- [Trusted proxy auth](/gateway/trusted-proxy-auth)
- [Plugin management](/plugins/manage-plugins)
