MARKETING

Alert on Stalled Landing-Page Tests With No Clear Winner

Flags A/B tests that have run past their deadline without reaching significance, so growth can kill, extend, or rethink them instead of letting inconclusive experiments burn…

CategoryMarketing
Enginesim
Difficultyintermediate
Triggerschedule
Steps5
Setup~15 min

How it runs

The automated pipeline, trigger to output.

  • TriggerDaily schedule starts the stall scan
  • ActionRead active experiment stats and deadlinesPostgreSQLPostgres
  • LogicIsolate tests past deadline and still inconclusive
  • ActionOpen a decision issue for the experiment ownerLinearLinear
  • OutputAlert and tag owner in growth channelSlack

What it does

Monitors active landing-page experiments and catches the ones that have outlived their planned runtime while still showing no statistically meaningful winner, then escalates them for a human decision.

When to use it

Use it when tests quietly run for weeks with overlapping confidence intervals, wasting traffic and blocking the next experiment. This forces a kill-or-extend call instead of silent drift.

How it works

  1. 1A daily schedule starts the scan.
  2. 2It reads each active experiment's start date, planned duration, and current variant stats from Postgres.
  3. 3A logic gate isolates tests that are past their deadline AND still below the significance threshold.
  4. 4For each stalled test it opens a Linear issue assigned to the experiment owner with the current numbers and a decision checklist.
  5. 5It posts a Slack alert tagging the owner so the stall is visible the same day.

Set it up

What you configure once, before turning it on.

  1. 1
    Connect PostgresAny Postgres URL — query, write, migrate.
  2. 2
    Connect LinearIssues, projects, cycles, triage.
  3. 3
    Connect SlackChannels, DMs, threads, mentions.
  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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