Source profileQuality 88/100

affaan-m/ECC/skills/product-lens/SKILL.md

product-lens

Use this skill to validate the "why" before building, run product diagnostics, and pressure-test product direction before the request becomes an implementation contract.

Source repository stars: 234,327
Declared platforms: 0
Static risk flags: 0
Last source update: 2026-07-27
Source checked: 2026-07-28

Decision Compatibility Install Workflow Permissions Evidence Source

Decision brief

What it does—and where it fits

This lane owns product diagnosis, not implementation-ready specification writing.

Best for

Before starting any feature — validate the "why"
Weekly product review — are we building the right thing?
When stuck choosing between features

Not for

Tasks that require unconfirmed production actions or broad system permissions.
Environments where the pinned source and install steps cannot be inspected.

Compatibility matrix

Platform support, with evidence labels

Platform	Status	Evidence	What to check
Codex	Not declared	No explicit evidence	Portability before use
Claude Code	Not declared	No explicit evidence	Portability before use
Cursor	Not declared	No explicit evidence	Portability before use
Gemini CLI	Not declared	No explicit evidence	Portability before use

Open the compatibility checker

Installation

Inspect first. Install second.

The source command is displayed only when detected. A safe inspection prompt is always available so your agent can explain every action before execution.

Source-detected install commandSource

npx skills add https://github.com/affaan-m/ECC --skill "skills/product-lens"

Safe inspection promptEditorial

Inspect the Agent Skill "product-lens" from https://github.com/affaan-m/ECC/blob/4e973d3eaf92d97f8d2e2d8abb39d8bdc8711b38/skills/product-lens/SKILL.md at commit 4e973d3eaf92d97f8d2e2d8abb39d8bdc8711b38. List every install step, command, network request, credential, file read/write, external action, and rollback step. Explain whether it fits my task. Do not install or execute anything until I approve.

Workflow

What the source asks the agent to do

01
Mode 2: Founder Review
Reviews your current project through a founder lens:
Reviews your current project through a founder lens:
02
When to Use
Before starting any feature — validate the "why"
Before starting any feature — validate the "why"Weekly product review — are we building the right thing?When stuck choosing between features
03
How It Works
Like YC office hours but automated. Asks the hard questions:
Like YC office hours but automated. Asks the hard questions:Output: a PRODUCT-BRIEF.md with answers, risks, and a go/no-go recommendation.If the result is "yes, build this," the next lane is product-capability, not more founder-theater.
04
Mode 1: Product Diagnostic
Like YC office hours but automated. Asks the hard questions:
Like YC office hours but automated. Asks the hard questions:Output: a PRODUCT-BRIEF.md with answers, risks, and a go/no-go recommendation.If the result is "yes, build this," the next lane is product-capability, not more founder-theater.

Permission review

Static risk signals and limitations

No configured static risk pattern was detected

This is not proof of safety. Runtime behavior, indirect dependencies, and hidden external systems are outside the static scan.

Evidence record

Why each signal appears

EvidenceSourceComputedTestedEditorial

Signal	Value	Evidence type	Meaning
Quality score	88/100	Computed	Documentation, specificity, maintenance, and trust rules
Repository stars	234,327	Source	Repository attention, not individual Skill quality
Compatibility	0 platforms	Source	Declared in the catalog source record
Usage guide	automated source guide	Editorial	Generated or reviewed according to the visible evidence level

Pinned source

Provenance and original SKILL.md

Repository: affaan-m/ECC
Skill path: skills/product-lens/SKILL.md
Commit: 4e973d3eaf92d97f8d2e2d8abb39d8bdc8711b38
License: MIT
Collected: 2026-07-28
Default branch: main

View the original SKILL.md

Product Lens — Think Before You Build

This lane owns product diagnosis, not implementation-ready specification writing.

If the user needs a durable PRD-to-SRS or capability-contract artifact, hand off to product-capability.

When to Use

Before starting any feature — validate the "why"
Weekly product review — are we building the right thing?
When stuck choosing between features
Before a launch — sanity check the user journey
When converting a vague idea into a product brief before engineering planning starts

How It Works

Mode 1: Product Diagnostic

Like YC office hours but automated. Asks the hard questions:

1. Who is this for? (specific person, not "developers")
2. What's the pain? (quantify: how often, how bad, what do they do today?)
3. Why now? (what changed that makes this possible/necessary?)
4. What's the 10-star version? (if money/time were unlimited)
5. What's the MVP? (smallest thing that proves the thesis)
6. What's the anti-goal? (what are you explicitly NOT building?)
7. How do you know it's working? (metric, not vibes)

Output: a PRODUCT-BRIEF.md with answers, risks, and a go/no-go recommendation.

If the result is "yes, build this," the next lane is product-capability, not more founder-theater.

Mode 2: Founder Review

Reviews your current project through a founder lens:

1. Read README, CLAUDE.md, package.json, recent commits
2. Infer: what is this trying to be?
3. Score: product-market fit signals (0-10)
   - Usage growth trajectory
   - Retention indicators (repeat contributors, return users)
   - Revenue signals (pricing page, billing code, Stripe integration)
   - Competitive moat (what's hard to copy?)
4. Identify: the one thing that would 10x this
5. Flag: things you're building that don't matter

Mode 3: User Journey Audit

Maps the actual user experience:

1. Clone/install the product as a new user
2. Document every friction point (confusing steps, errors, missing docs)
3. Time each step
4. Compare to competitor onboarding
5. Score: time-to-value (how long until the user gets their first win?)
6. Recommend: top 3 fixes for onboarding

Mode 4: Feature Prioritization

When you have 10 ideas and need to pick 2:

1. List all candidate features
2. Score each on: impact (1-5) × confidence (1-5) ÷ effort (1-5)
3. Rank by ICE score
4. Apply constraints: runway, team size, dependencies
5. Output: prioritized roadmap with rationale

Output

All modes output actionable docs, not essays. Every recommendation has a specific next step.

Integration

Pair with:

/browser-qa to verify the user journey audit findings
/design-system audit for visual polish assessment
/canary-watch for post-launch monitoring
product-capability when the product brief needs to become an implementation-ready capability plan

Alternatives

Compare before choosing

Computed 10042,015

coreyhaines31/marketingskills

ab-testing

When the user wants to plan, design, or implement an A/B test or experiment, or build a growth experimentation program. Also use when the user mentions "A/B test," "split test," "experiment," "test this change," "variant copy," "multivariate test," "hypothesis," "should I test this," "which version is better," "test two versions," "statistical significance," "how long should I run this test," "growth experiments," "experiment velocity," "experiment backlog," "ICE score," "experimentation program

Computed 1007

event4u-app/agent-config

testing-anti-patterns

Use BEFORE writing/changing tests, adding mocks, or test-only methods on production classes — vs mocking-the-mock, production pollution, partial mocks, and overfit/tautological assertions

Computed 997

event4u-app/agent-config

design-review

Use when the user says "review the design", "check the UI", or wants a comprehensive UI/UX review. Uses a 7-phase methodology covering interaction, responsiveness, accessibility, and more.

Computed 987

event4u-app/agent-config

pest-testing

Use when writing, generating, or improving Pest tests for Laravel — clear intent, good coverage, maintainable structure, and alignment with project testing conventions.