bus-live-testlisted

# Live bus / cross-session communication test Runs a real `gravityd` on a throwaway home and exercises bot-to-bot traffic end to end. Two modes, cheapest first: - **Synthetic** (`runtime = "double"`): no Claude sessions; you act as the bots by calling the MCP bus with their bearer tokens. Deterministic, free, and the only mode where you can force every refusal on demand. Use for verifying daemon *rules*. - **Real** (`runtime = "pty"`): the daemon spawns actual `claude` sessions — **billed against the user's account**. Use only with explicit user consent, and only to observe *behavior*: do real bots obey the prompt contracts, brief delegations well, use artifacts, stay silent after a `done`. ## Shared setup ```bash cargo build -p gravityd umask 077 BUS_HOME=$(mktemp -d "${TMPDIR:-/tmp}/gravity-bus.XXXXXX") BUS_HOME=$(cd "$BUS_HOME" && pwd -P) cat > "$BUS_HOME/gravityd.toml" <<EOF home = "$BUS_HOME" bind = ["127.0.0.1"] port = 49666 # verify this test port is free first negotiate_port = false runtime = "double" # or "pty" for real mode supervision_interval_ms = 1000 [scheduler] tick_interval_ms = 2000 # fast expiry sweeps; default is 30s EOF ./target/debug/gravityd --config "$BUS_HOME/gravityd.toml" > "$BUS_HOME/gravityd.log" 2>&1 & BUS_DAEMON_PID=$! ``` Wait for the published `$BUS_HOME/gravityd.port`, verify it is 49666, and check `curl --fail http://127.0.0.1:49666/health`. Confirm the recorded PID is still running; stop on st