DEVOPS

Agentic Flag Cleanup: Investigate, Plan, and Open a Safe Removal MR

An agent takes a single stale flag, traces every usage across the GitLab repo, decides which branch is now permanent, and opens a reviewed removal MR with a written rationale.

CategoryDevOps
Enginepaperclip
Difficultyadvanced
Triggermanual
Steps5
Setup~25 min

How it runs

The automated pipeline, trigger to output.

  • TriggerManual trigger with target flag key
  • ActionSearch and read all flag usages in repoGitLabGitLab
  • LogicAgent determines surviving branch
  • ActionOpen removal MR with written rationaleGitLabGitLab
  • OutputPost MR link and reasoning to SlackSlack

What it does

For one stale flag, an agent investigates all references in the codebase, reasons about which conditional branch is the surviving behavior, removes the dead branch and the flag definition, and opens a GitLab MR. It writes a plain-English rationale explaining what it kept and why, then posts the link to Slack.

When to use it

Use this for flags whose removal isn't a mechanical delete, where guards wrap meaningful logic and a human needs to trust that the right branch survived. The agent does the reading and reasoning that makes a mechanical harvester unsafe on its own.

How it works

  1. 1A manual trigger supplies the flag key to clean up.
  2. 2The agent searches the GitLab repo for every reference and reads the surrounding code.
  3. 3It reasons about the default/rollout state to determine the permanent branch, handling nested and negated guards.
  4. 4It produces a patch, opens an MR with a rationale and a reviewer assigned.
  5. 5It posts the MR link and its reasoning summary to Slack for sign-off.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect GitLabRepos, MRs, pipelines, registry.
  2. 2
    Connect SlackChannels, DMs, threads, mentions.
  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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