ReddRadar
Agent skill
alerting-dashboard-builder
Creates SLO-based alerts and operational dashboards with key charts, alert thresholds, and runbook links. Use for "alerting", "dashboards", "SLO", or "monitoring".
Install this agent skill to your Project
npx add-skill https://github.com/patricio0312rev/skills/tree/main/performance/alerting-dashboard-builder
SKILL.md
Alerting & Dashboard Builder
Build effective alerts and dashboards based on SLOs.
SLO Definition
slos:
- name: api_availability
objective: 99.9%
window: 30d
sli: |
sum(rate(http_requests_total{status_code!~"5.."}[5m])) /
sum(rate(http_requests_total[5m]))
- name: api_latency
objective: 95% # 95% of requests under 500ms
window: 30d
sli: |
histogram_quantile(0.95,
rate(http_request_duration_seconds_bucket[5m])
) < 0.5
Alert Rules
groups:
- name: slo_alerts
rules:
# Fast burn (1% budget in 1h)
- alert: AvailabilitySLOFastBurn
expr: |
(1 - (sum(rate(http_requests_total{status_code!~"5.."}[1h])) /
sum(rate(http_requests_total[1h])))) > 0.01
for: 5m
labels:
severity: critical
annotations:
summary: "Burning 1% error budget per hour"
runbook: "https://runbooks.example.com/availability-fast-burn"
# Slow burn (10% budget in 24h)
- alert: AvailabilitySLOSlowBurn
expr: |
(1 - (sum(rate(http_requests_total{status_code!~"5.."}[24h])) /
sum(rate(http_requests_total[24h])))) > 0.001
for: 1h
labels:
severity: warning
annotations:
summary: "Burning error budget slowly"
Dashboard Template
{
"title": "Service Health Dashboard",
"rows": [
{
"title": "Golden Signals",
"panels": [
{
"title": "Request Rate",
"query": "sum(rate(http_requests_total[5m]))",
"type": "graph"
},
{
"title": "Error Rate",
"query": "sum(rate(http_requests_total{status_code=~"5.."}[5m]))",
"type": "graph"
},
{
"title": "Latency (p50, p95, p99)",
"queries": [
"histogram_quantile(0.50, rate(http_request_duration_seconds_bucket[5m]))",
"histogram_quantile(0.95, rate(http_request_duration_seconds_bucket[5m]))",
"histogram_quantile(0.99, rate(http_request_duration_seconds_bucket[5m]))"
]
},
{
"title": "Saturation (CPU, Memory)",
"queries": [
"rate(process_cpu_seconds_total[5m])",
"process_resident_memory_bytes"
]
}
]
},
{
"title": "SLO Tracking",
"panels": [
{
"title": "Error Budget Remaining",
"query": "1 - ((1 - 0.999) - (1 - slo_availability))"
}
]
}
]
}
What to Do When Alert Fires
# Alert Response Guide
## HighErrorRate
**What it means:** More than 5% of requests are failing
**First steps:**
1. Check recent deployments (rollback if needed)
2. Review error logs for patterns
3. Check dependent services health
4. Verify database connectivity
**Escalation:** If not resolved in 15 min, page on-call lead
## HighLatency
**What it means:** p95 latency above 2 seconds
**First steps:**
1. Check database query performance
2. Review recent code changes
3. Check cache hit rates
4. Look for slow external API calls
**Temporary mitigation:**
- Scale up instances
- Enable aggressive caching
## LowAvailability
**What it means:** Availability below 99.5%
**First steps:**
1. Check infrastructure (AWS status page)
2. Review load balancer health checks
3. Check for DDoS activity
4. Verify auto-scaling functioning
Output Checklist
- SLOs defined
- Alert rules configured
- Dashboards created
- Runbooks linked
- Response guides documented ENDFILE
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