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a2a-relay

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UpdatedMay 18, 2026 at 18:09

Connect and coordinate with Chamber A2A relay agents. Use this whenever the user mentions A2A, a2a-client, relay agents, Switchboard relay, connecting to the relay, listing agents, sending an agent a message, reading inbound messages, or replying to an inbound A2A message. Prefer the direct `a2a_*` tools; do not use shell commands as markers or wrappers for A2A actions.

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ianphil/chamber

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Related occupationsSOC

Based on SOC occupation classification

Software DevelopersComputer and Mathematical Occupations·SOC 15-1252

SKILL.md

readonly

name	a2a-relay
description	Connect and coordinate with Chamber A2A relay agents. Use this whenever the user mentions A2A, a2a-client, relay agents, Switchboard relay, connecting to the relay, listing agents, sending an agent a message, reading inbound messages, or replying to an inbound A2A message. Prefer the direct `a2a_*` tools; do not use shell commands as markers or wrappers for A2A actions.

A2A Relay Skill

Use the direct A2A tools to connect this Copilot CLI session to a Chamber relay, discover agents, and exchange messages.

Rules

Register as {user_alias}-copilot-{repo}-{host_platform_os}.
- Example: ianphil-copilot-chamber-windows.
Use a2a_* tools directly. Do not run PowerShell no-op markers, wrappers, or "prep" commands for A2A actions.
If the user gives relay connection details, connect without asking again.
If an inbound message includes message_id, reply with a2a_send_agent_message with reply_to_message_id so the relay context is preserved.

Tool flow

Connect

Default Switchboard relay (Chamber, Entra interactive auth) on Windows:

{
  "action": "connect",
  "base_url": "https://ca-switchboard-5ofgbfqtsnhd6.proudbay-985bf294.eastus.azurecontainerapps.io",
  "client_id": "074530a3-b6c5-41c8-896c-4a6651bf5f16",
  "agent_name": "ianphil-copilot-chamber-windows",
  "auth_mode": "interactive"
}

Call a2a_connection with these values unless the user overrides them. Keep the {user_alias}-copilot-{repo}-{host_platform_os} agent name (e.g. ianphil-copilot-chamber-windows) — do not shorten it.

Use auth_mode: "static" only when the user explicitly supplies a bearer token.

Use action: "status" to inspect the current relay connection, and action: "disconnect" to unregister this session and stop polling.

List agents

Call a2a_list_remote_agents to see who is registered and available.

Send a message

Call a2a_send_agent_message with recipient (the exact agent name from a2a_list_remote_agents) and message. Optionally pass context_id to continue an existing A2A conversation.

{
  "recipient": "copilot-chamber-mac",
  "message": "..."
}

Note: the parameter is recipient, not agent_name. Using agent_name will fail with "Tool execution failed".

Reply to an inbound message

Call a2a_send_agent_message with the inbound reply_to_message_id and your response. This infers the original sender and preserves the relay context when the inbound message supplied one.

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name	a2a-relay
description	Connect and coordinate with Chamber A2A relay agents. Use this whenever the user mentions A2A, a2a-client, relay agents, Switchboard relay, connecting to the relay, listing agents, sending an agent a message, reading inbound messages, or replying to an inbound A2A message. Prefer the direct `a2a_*` tools; do not use shell commands as markers or wrappers for A2A actions.

A2A Relay Skill

Use the direct A2A tools to connect this Copilot CLI session to a Chamber relay, discover agents, and exchange messages.

Rules

Register as {user_alias}-copilot-{repo}-{host_platform_os}.
- Example: ianphil-copilot-chamber-windows.
Use a2a_* tools directly. Do not run PowerShell no-op markers, wrappers, or "prep" commands for A2A actions.
If the user gives relay connection details, connect without asking again.
If an inbound message includes message_id, reply with a2a_send_agent_message with reply_to_message_id so the relay context is preserved.

Tool flow

Connect

Default Switchboard relay (Chamber, Entra interactive auth) on Windows:

{
  "action": "connect",
  "base_url": "https://ca-switchboard-5ofgbfqtsnhd6.proudbay-985bf294.eastus.azurecontainerapps.io",
  "client_id": "074530a3-b6c5-41c8-896c-4a6651bf5f16",
  "agent_name": "ianphil-copilot-chamber-windows",
  "auth_mode": "interactive"
}

Use auth_mode: "static" only when the user explicitly supplies a bearer token.

Use action: "status" to inspect the current relay connection, and action: "disconnect" to unregister this session and stop polling.

List agents

Call a2a_list_remote_agents to see who is registered and available.

Send a message

Call a2a_send_agent_message with recipient (the exact agent name from a2a_list_remote_agents) and message. Optionally pass context_id to continue an existing A2A conversation.

{
  "recipient": "copilot-chamber-mac",
  "message": "..."
}

Note: the parameter is recipient, not agent_name. Using agent_name will fail with "Tool execution failed".

Reply to an inbound message

Call a2a_send_agent_message with the inbound reply_to_message_id and your response. This infers the original sender and preserves the relay context when the inbound message supplied one.