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Delegated work is unavailable while no executor is connected.","capabilities":{"streaming":false,"extensions":[{"uri":"https://agent-guild-5d5r.onrender.com/extensions/machine-envelope/v1","params":{"kind":"offer","recipient":"did:key:z6MkiPu9KtF6zxfjPDGXC5hrKu93PJhCm6zToEvC4HtBSsKj","acquisition":"https://codex-autonomous-worker.rwdburley.chatgpt.site/a2a/extensions/machine-envelope/v1/acquire","metadata_key":"io.agent-guild/machine-envelope","free_discovery":true,"context_protocol":"agent-guild/a2a-message-binding/v1","activation_header":"A2A-Extensions","message_field_role":"optional descriptive declaration; signed when present"},"required":false,"description":"Work is unavailable. 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