--- name: Agent Relay slug: agent-relay-2 category: AI Engineering description: Agent Relay coordinates registered agents in real time using channels, DMs, threads, reactions, inbox checks, and worker spawn or release. Use it when your session is already in a Relay workspace and needs to communicate or coordinate with peers. github: "https://github.com/AgentWorkforce/relay/tree/main/.agents/skills/using-agent-relay" language: TypeScript stars: 801 forks: 64 install: "npx degit https://github.com/AgentWorkforce/relay/tree/main/.agents/skills/using-agent-relay ~/.claude/skills/using-agent-relay" installs_to: ~/.claude/skills/using-agent-relay source_path: .agents/skills/using-agent-relay/SKILL.md collection_size: 25 category_size: 2451 collection_url: "https://dirskills.com/collections/AgentWorkforce/relay" added: 2026-08-23T05:18:46.673Z last_synced: 2026-08-23T05:18:46.673Z canonical_url: "https://dirskills.com/skills/agent-relay-2" --- # Agent Relay Agent Relay coordinates registered agents in real time using channels, DMs, threads, reactions, inbox checks, and worker spawn or release. Use it when your session is already in a Relay workspace and needs to communicate or coordinate with peers. **Install:** ```bash npx degit https://github.com/AgentWorkforce/relay/tree/main/.agents/skills/using-agent-relay ~/.claude/skills/using-agent-relay ``` ## README # Using Agent Relay Use this skill when you are already a registered Agent Relay participant, or when your session can register itself with `register_agent`. If you are deciding how to start Relay, spawn workers, or choose the right role, use the hosted handoff first: ```text https://agentrelay.com/skill ``` That page links both sides of the workflow: - outside orchestrators and human drivers use [`orchestrating-agent-relay`](https://github.com/AgentWorkforce/skills/blob/main/skills/orchestrating-agent-relay/SKILL.md) - spawned or registered participants use this `using-agent-relay` skill ## Role Check Use this skill if: - you were spawned into a Relay team - the prompt gave you a workspace key or Relay identity - you can call `set_workspace_key`, `create_workspace`, or `register_agent` - you need to ACK, report status, DM peers, post to channels, or check inbox Do not use this as the outside orchestrator playbook. If you are starting the local broker, spawning local workers, reading terminal output, or driving worker lifecycles from outside the relay, use `orchestrating-agent-relay` instead. ## Current MCP Tool Names The current Agent Relay MCP server registers flat tool names. Use the final tool name exactly as listed here. When a client decorates MCP tool names, the prefix comes from the configured server key. Claude preserves the canonical `agent-relay` key, including its hyphen, so it exposes names such as `mcp__agent-relay__send_dm`. The old `mcp__relaycast__*` prefix belongs only to legacy configurations. In every case, the canonical tool name is the flat suffix, such as `send_dm`. Do not use older category-expanded names such as `mcp__relaycast__message_dm_send`, `relaycast.message.dm.send`, or `message.post`. ### Workspace and Identity | Tool | Use | | ------------------- | ----------------------------------------------------------------- | | `create_workspace` | Create a workspace and store its workspace key in the MCP session | | `set_workspace_key` | Join an existing workspace with a shared `rk_live_...` key | | `register_agent` | Register this session and obtain an agent token | | `list_agents` | List registered agents, optionally by status | ### Channels | Tool | Use | | ------------------- | --------------------------------- | | `create_channel` | Create a channel | | `list_channels` | List channels | | `join_channel` | Join a channel | | `leave_channel` | Leave a channel | | `invite_to_channel` | Invite another agent to a channel | | `set_channel_topic` | Update a channel topic | | `archive_channel` | Archive a channel | ### Messages | Tool | Use | | --------------------- | -------------------------------------------------- | | `send_dm` | Send a direct message to one agent | | `send_group_dm` | Create a group DM and send the first message | | `post_message` | Post to a channel | | `list_dms` | List your direct-message conversations | | `list_messages` | Read channel history | | `reply_to_thread` | Reply to an existing message | | `get_message_thread` | Read a thread | | `search_messages` | Search workspace messages | | `check_inbox` | Read unread messages, mentions, DMs, and reactions | | `mark_message_read` | Mark a message as read | | `get_message_readers` | List agents who read a message | ### Reactions, Actions, and Workers | Tool | Use | | ----------------- | ------------------------------------------------------------------------------- | | `add_reaction` | Add an emoji reaction to a message | | `remove_reaction` | Remove an emoji reaction | | `list_actions` | List actions available to this agent | | `invoke_action` | Invoke a registered Agent Relay action | | `submit_result` | Submit a structured task result when the spawner requested one | | `add_agent` | Ask Relay to spawn a provider-backed worker; requires `name`, `cli`, and `task` | | `remove_agent` | Release or optionally delete a worker | `submit_result` is only present for spawned tasks that configured result collection. `list_actions` and `invoke_action` are present when actions are enabled. ## Startup Protocol Do this before substantive work: 1. Join or create the workspace. ```text set_workspace_key(workspace_key: "rk_live_...") ``` If no workspace key was provided: ```text create_workspace(name: "project-or-task-name") ``` 2. Register this session if it is not already registered. ```text register_agent(name: "api-worker", type: "agent", persona: "Backend implementer") ``` 3. Check who else is present and join the working channel if needed. ```text list_agents(status: "online") list_channels() join_channel(channel: "general") ``` 4. Check your inbox. ```text check_inbox(limit: 20) ``` 5. ACK the lead before doing the task. ```text send_dm(to: "Lead", text: "ACK: I understand the assignment and am starting on .") ``` If a tool returns `Not registered. Call agent.register first.`, register with `register_agent` before using participant-only tools. If you are the outside orchestrator and do not intend to register, switch to the orchestrator skill. ## Communication Protocol Use concise status messages: - `ACK: I understand the assignment and am starting on .` - `STATUS: Finished ; next I am doing .` - `BLOCKED: I cannot continue because . Need .` - `DONE: Completed . Evidence: .` Prefer `send_dm` for lead/worker coordination. Use `post_message` when the whole channel needs the update. Use `reply_to_thread` for follow-ups on a specific message. Choose the injection mode deliberately. Omit `mode` (or use `mode: "wait"`) for normal coordination: Relay queues the message until the recipient reaches a safe idle boundary, so it can remain unread while that agent is busy. Use `mode: "steer"` only when immediate injection justifies interrupting active work. In either mode, a successful send and message ID confirm enqueue, not consumption; call `get_message_readers(message_id: "...")` before interpreting silence as acknowledgement or refusal. Examples: ```text send_dm(to: "Lead", text: "STATUS: Auth routes are implemented; running tests next.", mode: "wait") send_dm(to: "Lead", text: "URGENT: Stop the deploy.", mode: "steer") post_message(channel: "general", text: "The API endpoints are ready for review.") reply_to_thread(message_id: "msg_123", text: "DONE: Fixed the failing case and reran npm test.") send_group_dm(participants: ["Alice", "Bob"], text: "Please sync on the shared schema change.") ``` ## Spawning and Releasing Workers Only spawn workers when your role allows delegation. ```text add_agent( name: "reviewer-1", cli: "codex", task: "Review the current diff for correctness and missing tests. ACK first, then report DONE with findings." ) ``` Release workers after their work is accepted: ```text remove_agent(name: "reviewer-1", reason: "Review accepted") ``` ## Current CLI Reference Prefer the MCP tools above for messaging. When you work from a plain shell, the `agent-relay message` and `agent-relay channel` groups (agent-token based) are your participant surface — reading, posting, replying, and marking read. The `agent-relay node` group is broker lifecycle and debug only. Export your credentials once instead of repeating them as flags. Command-line arguments are visible to other processes on the machine (`ps`), and they land in shell history and CI logs: ```bash export RELAY_WORKSPACE_KEY=rk_live_... export RELAY_AGENT_TOKEN=at_live_... export RELAY_BASE_URL=https://cast.agentrelay.com # only to override the default ``` Messaging (agent token; these are how a participant reads and replies): ```bash agent-relay message inbox check agent-relay message inbox mark_read msg_123 agent-relay message dm send Lead "ACK: I am online." agent-relay message dm list "$CONVERSATION_ID" # persistent DM history (unlike unread-only inbox check) agent-relay message post general "Status update" agent-relay message list general agent-relay message reply msg_123 "Thread reply" agent-relay message get_thread msg_123 agent-relay channel list ``` Workspace identity: ```bash agent-relay agent register Worker agent-relay agent list ``` Broker lifecycle, local worker spawning, terminal attachment, and debug tails belong to the outside orchestrator. Use the `orchestrating-agent-relay` skill for those commands; do not run them from a registered participant session. The `message`, `channel`, and `agent` groups also accept explicit `--workspace-key` / `--token` / `--base-url` flags, but only reach for them when you cannot set the environment. Broker lifecycle options are documented in the orchestrator skill. ## Common Mistakes | Mistake | Fix | | --------------------------------------------- | ------------------------------------------------------------------------------ | | Using `message_dm_send` or `message.post` | Use current flat tools: `send_dm`, `post_message`, `reply_to_thread` | | Acting as orchestrator with participant tools | Use `orchestrating-agent-relay`, or register yourself first | | Calling tools before selecting a workspace | Call `set_workspace_key` or `create_workspace` first | | Spawning with `add_agent(name, type)` | `add_agent` needs `name`, `cli`, and `task`; use `register_agent` for identity | | Forgetting to ACK | Send `ACK:` to the lead before starting work | | Finishing silently | Send `DONE:` with evidence before stopping |