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OpenCode treats a StructuredOutput call as the end of the request and never sends a tool result back, so the parked bridge was never resumed and its Claude Code process leaked, one per structured request. Close the bridge when nothing resumed it within a grace period (60s, override with OPENCODE_CLAUDE_STRUCTURED_OUTPUT_REAP_MS).
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When OpenCode runs a structured-output request (a JSON-schema
format, as used by memory plugins like opencode-mem), it injects aStructuredOutputtool. It ends the request as soon as the model calls that tool, and it never sends a tool result back. Onclaude-code/*the bridge parks on that call, waiting for a result that never arrives. Its Claude Code process stays alive until the whole server restarts.We hit this with opencode-mem: every memory capture left one
claudeprocess behind. After a day we had dozens of idle CLIs underopencode serve, and the machine was swapping.Fix: when a turn parks and every pending tool is
StructuredOutput, schedule a reaper. If the same calls are still pending after the grace period, the reaper closes the bridge withdeleteBridge. The default grace period is 60s, adjustable withOPENCODE_CLAUDE_STRUCTURED_OUTPUT_REAP_MS. Turns parked on any other tool are not affected. If OpenCode does send a result within the grace period, the normal resume path runs and the reaper does nothing.Test:
test/structured-output-reap-regression.tsuses a mock SDK turn that calls a bridged tool through the real MCP server and then waits. AStructuredOutputpark gets closed; onmainit isn't, and the test fails. Abashpark stays open.bun test/smoke.tsandtsc --noEmitpass.Related but out of scope: other abandoned parks (a user starts a new session instead of answering) also stay alive until the server restarts. A general idle-park TTL might be worth adding separately.