architect-diagnose-performance

name: architect-diagnose-performance description: Diagnose latency, saturation, and throughput regressions.

Diagnose Performance

Use when there are latency spikes, timeout increases, throughput drops, or capacity pressure.

Inputs

• Cloudflare Observability MCP (latency/error distributions)
• PostHog MCP (user-facing impact/error trends)
• Recent git commits/PRs for regression correlation

Workflow

1. Identify worst affected route/service and incident window.
2. Compare baseline vs incident for latency, errors, saturation.
3. Determine bottleneck stage and likely trigger.
4. Propose smallest safe remediation.

Output

• impacted service/path
• before/after metrics
• bottleneck hypothesis + confidence
• remediation plan