SECOPS

Nightly Git History Credential Sweep

Each night this workflow scans tracked repositories for high-entropy strings and known key patterns.

CategorySecOps
Enginesim
Difficultyintermediate
Triggerschedule
Steps5
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerNightly schedule
  • ActionRun entropy + pattern scan over reposShell
  • LogicDedupe against known fingerprints
  • ActionFile Linear issue per new findingLinearLinear
  • OutputSend severity-ranked digest to SlackSlack

What it does

Proactively hunts for secrets already sitting in git history — the ones that never tripped a real-time scanner. It runs a deterministic sweep across your repos and turns each confirmed hit into trackable remediation work.

When to use it

Use it after onboarding new repos, post-migration, or as a standing hygiene job when you suspect older commits contain keys that predate push protection. Good for teams that want a daily backlog of leak debt rather than ad-hoc panic.

How it works

  1. 1A scheduled trigger kicks off the sweep every night.
  2. 2A shell action runs a pattern + entropy scanner across the cloned repositories and emits structured findings.
  3. 3A logic step deduplicates against previously-seen fingerprints so the same old leak isn't refiled nightly.
  4. 4For each new finding, an action creates a Linear issue with the file path, commit, and suggested rotation steps.
  5. 5The workflow outputs a severity-ranked digest to Slack so the team sees the night's net-new exposure at a glance.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect ShellRun sandboxed commands inside the workspace.
  2. 2
    Connect GitHubRepos, issues, pull requests, actions.
  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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