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hzhang 7911cc6320 feat(presence): F-5b presence-sync — mirror sm.Machine into Fabric

Adds an internal/presence package that ticks every 30s (configurable
via presence_interval_seconds), reads each bound agent's sm.Machine
state through host.ReadAgentState, maps to Fabric's 6-status enum,
and PUTs diffs to /api/agents/:userId/presence on every guild the
agent belongs to.

Semantic mapping (the part flagged "needed" in the prior README):
  idle    → idle
  working → on_call
  busy    → busy
  offline → offline
exhausted/unknown reserved for backend-side fallbacks; we don't push.

Tick is mutex-guarded (avoids the upsert race the openclaw incident
called out in agent-presence.service.ts) and diff-gated so writes are
sparse. Token-cache invalidation on PUT failure handles guild JWT
rotation.

fabric.Client gains SetAgentPresence helper. README marks F-5b ✅.

2026-06-01 08:40:17 +01:00

3.6 KiB

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Plexum-fabric-channel-plugin

Native Plexum channel plugin connecting Plexum agents to Fabric guilds as real channel members. Port of Fabric.OpenclawPlugin — delivered in phases.

Status

Phase	Scope	Status
F-1	identity + REST + plugin scaffold + `send` outbound	✅
F-2	socket.io inbound + wakeup gate + token refresh + per-channel serial	✅
F-3	exponential reconnect backoff	✅
F-4	tool surface batch 1 (8 tools)	✅
F-5	command-sync (slash autocomplete)	✅
F-6	attachments → temp-dir + footer	✅
F-7	sub-discussion KV + create-*-channel + discussion-complete	✅
F-8	coalesce parity	⏭ no-op — Plexum doesn't segment deliver
F-5b	presence-sync	✅

Agent-facing tools (16)

send — host-driven channel outbound (channel manager → plugin)
fabric-send-message, fabric-send-sys-msg — post normal / system msgs
fabric-channel-list, fabric-guild-list — discovery
fabric-message-history — paginate by seq
fabric-channel, fabric-channel-set-purpose — channel metadata
fabric-canvas — get/share/update/remove canvas
create-{chat,work,report,discussion}-channel — create new channels
discussion-complete — summary + close
create-sub-discussion, close-sub-discussion — sub-discussion lifecycle

Install

cd ~/Plexum-fabric-channel-plugin
./scripts/install.sh                  # build + install plugin + register CLI

Then:

Mint a Center API key for each Plexum agent that should speak in Fabric:

docker exec fabric-backend-center node dist/cli.js user apikey --email <agent-email>

Register the key with Plexum:

plexum-fabric-register --agent-id alice --api-key fak_xxxx
# writes ~/.plexum/fabric-identity.json

Configure plugin-level settings at ~/.plexum/plugins/plexum-fabric-channel/config.json:
```
{
  "center_api_base": "http://localhost:7001/api",
  "commands_sync_key": "...",
  "presence_interval_seconds": 30
}
```
presence_interval_seconds (F-5b) controls how often the plugin polls each bound agent's sm.Machine state via the host plexum/host/agent-state/read RPC and pushes diffs to PUT /api/agents/:userId/presence on every guild the agent belongs to. Defaults to 30s; set to 0 to fall back to default. The mapping is idle→idle, working→on_call, busy→busy, offline→offline (Fabric's exhausted/unknown are reserved for backend-side fallbacks; we don't push them). Diff-gated so writes are sparse.

Bind a Plexum channel name to a Fabric channel at ~/.plexum/channels/<plexum-channel-name>.json:

{
  "agent_id": "alice",
  "plugin": "plexum-fabric-channel",
  "fabric": {
    "guild_node_id": "test-guild1",
    "channel_id": "ch_xxxxxxxxx"
  }
}

Allow the plugin in ~/.plexum/plexum.json:

{"plugins": {"allow": ["plexum-fabric-channel"]}}

Restart the gateway: systemctl --user restart plexum

What you get in F-1

Plugin loads at gateway start, validates every bound agent's API key against Center via agentLogin, and warms a session per agent.
send MCP tool posts plain text to the bound Fabric channel as the agent user.
No inbound yet — Fabric → Plexum routing arrives in F-2.

Build manually

go build -o bin/plexum-fabric-channel-plugin ./cmd/plexum-fabric-channel-plugin
go build -o bin/plexum-fabric-register      ./cmd/plexum-fabric-register

License

Same as Plexum.

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