DEVOPS

Post-Merge Dependency Regression Watch

After a dependency upgrade merges, correlate the changelog's known issues against new errors in monitoring.

CategoryDevOps
Enginesim
Difficultyadvanced
Triggerevent
Steps5
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerDependency upgrade merged to mainGitHubGitHub
  • ActionPull recent error events for servicesSentrySentry
  • ActionMatch errors to changelog known-issuesOpenAI
  • LogicPost-merge errors match a regression?
  • OutputOpen rollback-candidate issueGitHubGitHub

What it does

Closes the loop after an upgrade ships. Once a dependency bump merges, it watches monitoring for new error signatures, then checks whether those errors line up with issues the changelog itself warned about, turning a vague "did that upgrade break something?" worry into a concrete, evidence-backed rollback decision.

When to use it

Run it on the hours immediately following any merged dependency upgrade to production. Best for teams that ship upgrades continuously and want an automated early-warning rather than waiting for a customer report.

How it works

  1. 1A dependency-upgrade merge to the main branch triggers the flow.
  2. 2It records the upgrade and pulls recent error events from Sentry for the affected services.
  3. 3An LLM compares new error signatures against the changelog's known-issues and behavior-change notes.
  4. 4A branch checks whether errors began after the merge and match a documented regression.
  5. 5If matched, it opens a rollback-candidate GitHub issue with the linked errors and changelog evidence; otherwise it posts an all-clear.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect GitHubRepos, issues, pull requests, actions.
  2. 2
    Connect SentryErrors, performance, releases.
  3. 3
    Connect OpenAIModels, embeddings, files.
  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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