ENGINEERING

Escalate GitLab MRs with no available code owner

When an MR opens but every matching code owner is over capacity or unavailable, escalates to a fallback reviewer pool and opens a Linear task flagging the ownership gap.

CategoryEngineering
Enginesim
Difficultyadvanced
Triggerwebhook
Steps6
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerGitLab MR opened or readyGitLabGitLab
  • ActionCheck owner availability and limitsPostgreSQLPostgres
  • LogicBranch when no owner is available
  • ActionAssign lightest fallback-pool reviewerGitLabGitLab
  • ActionOpen ownership-gap Linear taskLinearLinear
  • OutputAlert leads in SlackSlack

What it does

This workflow handles the edge case the simple balancer can't: an MR whose code owners are all over their queue limit, on leave, or missing entirely. Instead of silently leaving it unassigned, it routes the MR to a configured fallback pool and files a Linear task so the team can fix the underlying ownership or staffing gap.

When to use it

Use it alongside your primary reviewer-assignment workflow as a safety net. It surfaces structural problems, like a module with only one overloaded owner, that would otherwise show up as mysteriously stalled MRs.

How it works

  1. 1A GitLab webhook fires when an MR is opened or ready.
  2. 2The workflow resolves code owners and checks each against their queue limit and availability in Postgres.
  3. 3A logic step branches: if at least one owner is available it exits to the normal path; otherwise it escalates.
  4. 4On escalation it assigns the lightest member of the fallback pool via GitLab.
  5. 5It opens a Linear task tagged ownership-gap with the module and the owners who were unavailable.
  6. 6It alerts the engineering-leads Slack channel that a gap was hit.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect GitLabRepos, MRs, pipelines, registry.
  2. 2
    Connect PostgresAny Postgres URL — query, write, migrate.
  3. 3
    Connect LinearIssues, projects, cycles, triage.
  4. 4
    Connect SlackChannels, DMs, threads, mentions.
  5. 5
    Set each agent's modelWe leave models unset so you pick the tier — fast + cheap, or top-quality.
  6. 6
    Tune it to your dataEdit the prompts, filters, and field mappings so it matches how your team works.
  7. 7
    Test, then turn it onRun once against a sample, confirm the output, then enable the trigger.

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