Function syncFooter

packages/opencode/src/cli/cmd/run/stream.transport.ts:504–533

(commits: StreamCommit[], patch?: FooterPatch, nextSubagent?: FooterSubagentState)

        }

        const syncFooter = (commits: StreamCommit[], patch?: FooterPatch, nextSubagent?: FooterSubagentState) => {
          const current = pickView(state.data, state.subagent, state.blockers)
          const footer = composeFooter({
            patch,
            subagent: nextSubagent,
            current,
            previous: state.footerView,
          })

          if (commits.length === 0 && !footer) {
            state.footerView = current
            return
          }

          input.trace?.write("reduce.output", {
            commits,
            footer: traceFooterOutput(footer),
          })
          writeSessionOutput(
            {
              footer: input.footer,
              trace: input.trace,
            },
            {
              commits,
              footer,
            },
          )
          state.footerView = current
        }

        const resolveShellAgent = Effect.fn("RunStreamTransport.resolveShellAgent")(function* (
          agent: string | undefined,