AI AGENTS

On-Call Agent: Datadog Alert to Root Cause and Draft Rollback PR

A Datadog monitor alert triggers an agent that correlates the regression to a recent deploy.

CategoryAI Agents
Enginepaperclip
Difficultyadvanced
Triggerevent
Steps5
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerDatadog monitor alertDatadogDatadog
  • ActionFetch deploys and commits in alert window from GitHubGitHubGitHub
  • LogicDecide if a deploy or infra is the cause
  • ActionOpen draft revert PR for the bad commitGitHubGitHub
  • OutputRequest rollback approval in SlackSlack

What it does

Closes the loop from alert to candidate fix. When a Datadog monitor trips, the agent figures out whether a recent code change caused it and, if so, prepares the rollback so a human only has to say yes.

When to use it

Use it for services where most incidents trace back to a deploy and the fastest safe mitigation is a revert. It removes the scramble to find the offending commit at 3 a.m. while keeping the merge decision with a person.

How it works

  1. 1A Datadog monitor crosses threshold and sends its alert payload, including the tagged service and metric.
  2. 2The agent reads the alert window and pulls commits and deploys to that service from GitHub in the same window.
  3. 3Logic decides whether the timing implicates a specific deploy or whether the cause looks infrastructural instead.
  4. 4If a deploy is implicated, the agent opens a draft revert pull request in GitHub targeting that commit.
  5. 5It posts the root-cause summary and a link to the draft PR in Slack, asking an on-call engineer to approve and merge the rollback.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect DatadogMetrics, traces, log search.
  2. 2
    Connect GitHubRepos, issues, pull requests, actions.
  3. 3
    Connect SlackChannels, DMs, threads, mentions.
  4. 4
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  5. 5
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  6. 6
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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