DEVOPS

On-Demand Latency Scaling Advisor Chat

An on-demand chat where an engineer names a service and the agent fetches its live latency percentiles from Datadog, checks current Vercel scaling.

CategoryDevOps
Enginepaperclip
Difficultyintermediate
Triggerchat
Steps5
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerEngineer asks in chat with service name
  • ActionQuery Datadog live p95/p99 latency and request rateDatadogDatadog
  • ActionRead current Vercel scaling configurationVercelVercel
  • LogicReason about SLO fit and compute recommended instance count
  • OutputReply with recommendation and confidence note in chat

What it does

Lets an engineer ask, in chat, whether a given service needs to scale right now. The agent fetches that service's live p95/p99 latency from Datadog, reads its current Vercel scaling configuration, and replies with a recommended instance count, the headroom math behind it, and a confidence note — all in the conversation.

When to use it

Use it during an incident or a traffic ramp when you want a fast, data-backed second opinion before touching scaling settings, without leaving chat to assemble dashboards yourself.

How it works

  1. 1An engineer triggers the chat with a service name and optional target SLO.
  2. 2The agent queries Datadog for the service's current p95/p99 latency and request rate.
  3. 3It reads the current Vercel scaling configuration for that service.
  4. 4It reasons about whether current capacity meets the SLO and computes a recommended instance count.
  5. 5It returns the recommendation, supporting numbers, and a confidence note in the chat reply.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect DatadogMetrics, traces, log search.
  2. 2
    Connect VercelDeploys, runtime logs, analytics.
  3. 3
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  4. 4
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  5. 5
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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