NOTE: The Growth team will monitor leading indicators using existing Growth KPIs and available metrics via Turnilo, we do not need Product Analytics support to complete this task.
User story & summary:
As the Growth team, I want to check on the "Add a Link" task for a subset of Wikipedias we scale to, because each wiki is unique and it's possible that we will see changes in how this task functions on some wikis.
Context:
The Growth team is scaling the Add a Link structured task to additional Wikipedias. This task has already been A/B tested multiple times with positive results. For this rollout, we only need to monitor a few key leading indicators to confirm the feature is performing as expected post-release.
Leading indicators:
| Metric | Definition | Expected Range / Healthy Trend | Investigation Trigger | Responsible |
| Task engagement | clicks on an "Add a Link" suggestion | Should be similar to previous wikis (of similar size) within ±10% | Large drop may indicate task surfacing or UX issue | Growth PM or Product Analytics |
| Task completion | completed an "Add a Link" edits | Should be similar to previous wikis (of similar size) within ±10% | Drop could signal usability or technical issue | Growth PM or Product Analytics |
| Revert rate | % of Add a Link edits reverted | Should remain in line with prior benchmarks within ±10% | Increase may indicate link quality issue | Growth PM or Product Analytics |
| Technical errors | % of sessions where task fails to load or suggestion fetch fails | <95% | Increase should trigger engineering check | Growth Engineers |
Acceptance Criteria:
- Help decide on how to measure impact (pre-post analysis? A/B test?)
- Complete review of the Leading Indicators for at least three Wikipedias. We should keep this analysis quick, possibly using Growth's public KPIs.
- Share summary in this task
Related:
- T398950: Q1 FY2025-26 Goal: Scaling Add-a-link to more wikis via production (airflow) pipelines
- T304110: [EPIC] Deploy "add a link" to all Wikipedias
- T404460: Add a Link: Link Suggestions Code Review and rollout planning
Background
This task is important because Add a Link helps new account holders get started:
- “Add a Link” increases the probability that newcomers make their first article edit (+16.6% over baseline) and the probability that they are retained as newcomers (+16.2% over baseline). Add_a_link/Experiment_analysis,_December_2021
- “Add an Image” increases the likelihood that mobile web newcomers make their first article edit (+17.0% over baseline), and the likelihood that they are retained as newcomers (+24.3% over baseline). Add_an_image/Experiment_analysis,_March_2024
- 2025 English Wikipedia Add a Link analysis: on the mobile web platform, the Add-a-link results are positive: a 33.7% increase in the constructive activation rate, a 3.7% increase in the constructive retention rate, and a 19.6% decrease in revert rate. https://analytics.wikimedia.org/published/reports/growth/add_a_link_enwiki_ab_test_report.html