OpenClaw gateway config reload and launchd kickstart runbook on MacLogin cloud Mac 2026-04-24: ship JSON5 edits without stranding cron, webhooks, or agent sessions

Operators editing ~/.openclaw/openclaw.json often assume a “soft reload” exists for every key. On leased Apple Silicon gateways supervised by launchd, reality splits into two lanes: in-process reload for a subset of routing tables, and full binary bounce when ports, TLS material, or environment variables change. This April 2026 runbook gives a reload-vs-restart matrix, a launchctl kickstart sequence with ThrottleInterval guardrails, doctor JSON diff gates, queue reconciliation steps for cron and webhooks, and FAQ tuned for HK, JP, KR, SG, and US fleets.

Cross-link daemon troubleshooting, environment variables in launchd, cutover health checks, and doctor diagnostics. Snapshot discipline lives in state backup guide. Hub: OpenClaw index; ops: help, pricing.

Why config changes disrupt sessions even when TCP stays up

OpenClaw keeps in-memory caches for model routing, tool manifests, and webhook HMAC secrets. Some edits invalidate only caches; others require rebinding listeners. Treat ambiguous edits as hard restarts until doctor proves otherwise—especially on shared hosts where another team’s cron job might be mid-flight.

• Soft-safe examples: tightening log verbosity, adjusting non-binding feature flags documented as hot in release notes.
• Hard-required examples: changing bind address from 0.0.0.0 to 127.0.0.1, rotating TLS certs, altering NODE_OPTIONS injected by launchd.
• Gray zone: plugin enablement toggles—assume restart if plugins spawn native helpers.

Reload versus full restart decision matrix

Change	Try reload first?	Evidence required	Fallback
Prompt-only string edits	Yes	Doctor clean + live probe	Restart if latency spikes > 40%
Model alias table	Sometimes	Sample completion on two regions	Full bounce
Port or TLS	No	n/a	launchctl kickstart -k
launchd EnvironmentVariables block	No	Diff plist	Unload/load with ThrottleInterval

launchctl kickstart playbook (macOS-safe ordering)

1. Identify the service label from your plist (never guess).
2. Snapshot launchctl print output to the ticket.
3. Pause synthetic traffic generators for 90 seconds.
4. Run sudo launchctl kickstart -k system/com.example.openclaw only after verifying the label matches production docs.
5. Wait ThrottleInterval seconds before accepting health checks as authoritative.
6. Reattach log stream predicates for 180 seconds to catch startup races.

Doctor JSON diff gates before declaring success

Export openclaw doctor --json before and after the bounce. Fail the change if more than 2 new warnings appear without owners. Compare file hashes for openclaw.json and any included fragments under ~/.openclaw subdirectories.

ThrottleInterval, KeepAlive, and crash-only semantics

Set ThrottleInterval to at least 10 seconds on shared leases so a misconfigured plist cannot tight-loop respawns and starve WindowServer neighbors. Pair with SuccessfulExit false where you need crash-only supervision. Document these choices beside the lease ID in CMDB.

Key	Purpose	Risk if omitted
ThrottleInterval	Respawn pacing	CPU storm
KeepAlive	Supervision model	Silent exits
StandardOutPath	Forensics	Blind postmortems

Queue reconciliation after a bounce

Inspect cron spool files and webhook retry directories for jobs stamped during the restart window. Re-enqueue anything with ambiguous status rather than risking double delivery—document the decision in the ticket. For multi-region setups, compare JP and US queues independently because clock skew can reorder timestamps by up to 900 ms.

When webhooks target partners with aggressive 5-second client timeouts, pause outbound dispatchers before the bounce and drain at least 20 pending deliveries; resume only after five consecutive health probes succeed. Teams that skip this step often misread “partner outage” graphs when the real fault was local queue stampede on restart.

Out-of-band shell discipline and port binding verification

Always execute launchctl kickstart from an SSH session that is not wrapped by the same LaunchAgent you are restarting—use a second user account or a jump host per your governance model. After the bounce, verify listeners with netstat -an | grep 18789 (or your chosen port) and confirm only one PID owns the socket for at least 120 seconds.

If you bind to loopback for hardening, curl both 127.0.0.1 and the SSH-forwarded path your operators actually use; mismatches here cause “green health checks” while humans still cannot reach the gateway through the documented tunnel. Attach both transcripts to the ticket so MacLogin support can diff routing versus process health.

• SO_REUSEADDR surprises: Document whether Node enables reuse; duplicate binds can hide until the second deploy.
• IPv6 vs IPv4: Explicitly test ::1 when plist environment sets NODE_OPTIONS=--dns-result-order=ipv4first.
• Firewall drift: Reconfirm application firewall prompts after macOS minor upgrades—silent blocks masquerade as slow reloads.

FAQ

Can I automate kickstart from CI? Yes, but only through a dedicated break-glass SSH principal with MFA per help guidance.

Does MacLogin restart gateways during maintenance? Coordinate windows via support; do not assume silent reloads.

What if health checks pass but webhooks fail? Revalidate TLS trust stores and outbound allowlists separately from gateway health.

Why Mac mini M4 shortens risky bounce windows

M4-class Apple Silicon restarts Node-based gateways quickly enough that ThrottleInterval waits dominate wall time instead of cold module loads. Unified memory reduces swap-induced false failures during parallel doctor runs. MacLogin’s HK, JP, KR, SG, and US footprint lets you practice kickstart ordering on a staging lease in Tokyo before touching US production.

Rent an extra canary mini from pricing whenever you introduce new plist keys—cheaper than an hour-long outage on a shared gateway.