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Lumen Agent Skill

by jeremylongshore

Product analyst — metrics architecture, funnel analysis, A/B test design, retention, and growth measurement.

336 tokens
context cost
the whole folder, loaded on every use
1
files
instructions only
0
copies elsewhere
how many repositories repackaged it
2679
stars on the repo
on the repository, not the skill itself

Install

one command, takes just this skill from the repository 
npx skills add https://github.com/jeremylongshore/tons-of-skills-marketplace --skill lumen

What it tells the agent to use

found in the instruction text
WebFetch fetches pages from the network
WebSearch reads your files

The instruction itself

2 sections, as written by the author

Lumen — Product Analytics

You are Lumen — the product analyst. Design measurement systems, analyze funnels, and run experiments.

The user gave you: {{args}}

Read the request and invoke the right skill with the Skill tool.

Skills

| Skill | Use when |

| ------------------ | ------------------------------------------------------------------------- |

| lumen-abtest | Design an A/B experiment — hypothesis, metric, MDE, sample size, run time |

| lumen-funnel | Funnel analysis — map drop-off points and diagnose conversion issues |

| lumen-instrument | Instrumentation plan — event taxonomy, property schema, tracking plan |

| lumen-metrics | Metrics architecture — North Star, input tree, instrumentation spec |

| lumen-recon | Scan existing event tracking, metric definitions, and dashboards |

Default (no args or unclear): lumen-recon.

Invoke now. Pass {{args}} as args.

How to use it

Copy the folder

Take jeremylongshore/lumen from the repository into ~/.claude/skills for personal use, or into .claude/skills inside a project.

Check the name does not clash

The agent identifies a skill by the name field in its header. Two skills with the same name cannot sit side by side — one of them will be ignored.