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fix(sdk-py): retry get_session on 503 + correct quickstart idle wait - #767
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willwashburn merged 1 commit intoApr 22, 2026
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The Python SDK's spawn() called get_session() once, so any 503 while the broker was still connecting to Relaycast killed the client before the first agent could spawn. Mirror the TypeScript SDK's retry-on-503 loop (10 attempts, 1s backoff). The quickstart Python example also referenced a non-existent relay.wait_for_agent_idle(name); switch to <handle>.wait_for_idle() to match the TypeScript example above it. Verified end-to-end: 3 agents spawn, exchange a kickoff message, go idle, broker shuts down cleanly. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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khaliqgant
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Apr 22, 2026
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willwashburn
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April 22, 2026 16:25
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Summary
Two linked fixes that unblock the Python quickstart example:
AgentRelayClient.spawn()calledget_session()exactly once. If the broker is still connecting to Relaycast it returns 503, which killed the client before any agent could spawn. Mirror the TypeScript SDK's retry-on-503 loop (10 attempts, 1s backoff —packages/sdk/src/client.ts:265-279).relay.wait_for_agent_idle(name), which doesn't exist onAgentRelay. Idle-waiting lives on theAgenthandle (wait_for_idle()), mirroring theplanner.waitForIdle()usage in the TypeScript example directly above it.Test plan
#general, Coder responded, all three went idle, broker shut down with exit 0.