flag-monitoring
SkillSet up a monitored progressive rollout ("safe rollout") for a GrowthBook feature flag — combining a ramp schedule with guardrail metric monitoring, automated signals, and optional auto-rollback. Use when the user says "roll this out safely", "monitor the rollout with guardrail metrics", "set up a sa
Install
git clone https://github.com/growthbook/skills.git ~/.claude/skills/flag-monitoringWhat is flag-monitoring?
Set up a monitored progressive rollout ("safe rollout") for a GrowthBook feature flag — combining a ramp schedule with guardrail metric monitoring, automated signals, and optional auto-rollback. Use when the user says "roll this out safely", "monitor the rollout with guardrail metrics", "set up a safe rollout", "I want to ramp this with automatic rollback if metrics regress", "configure monitoring on the ramp", "check the monitoring status of this rollout", "approve the next monitored step", or "roll back because guardrails are failing". For unmonitored ramps (just progressive coverage, no metrics), use flag-ramp directly. For simple on/off time windows, use flag-schedule.
What this can do
Capabilities declared in this component's own frontmatter — not inferred.
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BashDocumentation
README · ~6 min readflag-monitoring
Set up and manage a monitored progressive rollout (also called a "safe rollout") for a GrowthBook feature flag. A safe rollout is a standard rollout rule with a multi-step ramp schedule and monitoringConfig attached — the monitoring watches guardrail metrics at each step and can signal or automatically trigger a rollback if regressions are detected.
All API calls go through the bundled helper: ${CLAUDE_PLUGIN_ROOT}/scripts/gb-call. It needs GB_API_KEY set in env or written to ~/.config/growthbook/.env by /growthbook:gb-setup.
Required inputs for monitoring configuration
Before configuring, collect:
- Datasource ID — the datasource that tracks exposure and metric events
- Exposure query ID — which assignment query identifies users in the rollout
- Guardrail metric IDs — at least one metric that must not regress (e.g., error rate, crash rate)
- Signal metric IDs (optional) — leading-indicator metrics to watch, not hard gates
- SRM action — what to do on a Sample Ratio Mismatch:
"hold"(recommended — pause for inspection) or"rollback"(aggressive) or"warn"
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