SECOPS

Block GitLab merge requests that introduce secrets, with inline review

On every GitLab merge request, scans the changes for embedded credentials and, if any are found, fails the pipeline status and leaves an inline review comment pinpointing each…

CategorySecOps
Enginesim
Difficultyintermediate
Triggerevent
Steps5
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerGitLab merge request eventGitLabGitLab
  • ActionPull MR diff and scan changed hunksGitLabGitLab
  • LogicBranch: clean vs leak detected
  • ActionSet failing commit status to block mergeGitLabGitLab
  • OutputPost inline review comments on flagged linesGitLabGitLab

What it does

Intercepts GitLab merge requests and scans the proposed changes for hardcoded secrets before they can merge. When it finds one, it sets a failing commit status to block the merge and posts an inline comment on the exact offending lines so the author can fix it without guessing.

When to use it

Use it to enforce a no-secrets-in-main policy as a required merge gate. It is the right fit when you want prevention at review time rather than alerting after the fact, and when you want developers to get precise, actionable feedback inside the MR they are already looking at.

How it works

  1. 1A GitLab merge request event triggers the flow.
  2. 2The flow pulls the MR diff and runs credential and entropy detection across the changed hunks.
  3. 3A logic branch decides clean versus leak-detected.
  4. 4On a clean result it sets a passing status. On a leak it sets a failing commit status to block the merge.
  5. 5It posts an inline review comment on each flagged line describing the credential type and how to remediate.

Set it up

What you configure once, before turning it on.

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

Run this workflow in your colony.

14-day trial. No DevOps. No Sales call. Provisioned in under a minute.