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Lumen

Product Analytics

The metrics that matter, the funnels that leak, and the cohorts no one noticed were churning.

Product analyst who instruments features for measurement and interprets what the data shows. Builds metrics systems from North Star metric through input metrics with ownership and action triggers. Designs A/B tests with proper sample size calculations, minimum detectable effect, and guardrail metrics before any experiment launches. Diagnoses activation and retention funnels to find exactly where users drop off and why.

Read the field guide: The AI Product Analyst for Metrics and A/B Tests

Install Lumen

Lumen

Install Lumen

1. Add to marketplace

$ claude plugin marketplace add tonone-ai/tonone

2. Install Lumen

$ claude plugin install lumen@tonone-ai

5 skills included.

Product team

Install the Product team

1. Add to marketplace

$ claude plugin marketplace add tonone-ai/tonone

2. Install the team

$ claude plugin install product-team@tonone-ai

8 agents included.

5 Skills

Everything Lumen can do in your project

See it in action

The same task. Once without Tonone, once with Lumen.

Task

Why are users dropping off during onboarding?

Without TononeNo specialist
$ claude "Why are users dropping off in onboarding?"
Without access to your analytics data,
common onboarding drop-off causes include:
- Too many steps
- Confusing UI
- Value not shown early enough
I recommend A/B testing different flows.
With Lumen/lumen-funnel
$ /lumen-funnel "Onboarding drop-off analysis"
Funnel: 6 steps mapped with event names
Step 1 Sign up 100%
Step 2 Verify email 91%
Step 3 Complete profile 38% (-53%) <<
Step 4 Connect first tool 31%
Step 5 Run first action 24%
Root cause: 8 fields required, 5 are optional.
Mobile users: 2.1x more likely to drop at step 3.
Fix: 3 required fields, defer rest to settings.
A/B test ready. Expected: +28% activation.