SkillAgentSearch skills...

free-tools

When the user wants to plan, evaluate, or build a free tool for marketing purposes — lead generation, SEO value, or brand awareness.

Install / Use

npx skills add coreyhaines31/marketingskills --skill free-tools

Installs into whichever agent you are using.

About this skill
📄

SKILL.md

Installable skill definition

Quality Score

92/100

Category

Marketing

Supported Platforms

Universal

Tags

Our assessment of free-tools

free-tools scores 92/100 on our quality scale, 28th of 112 Marketing skills we index (top 25%).

Its SKILL.md is 7.0 KB long, well organised into 28 sections and no code examples: a thorough specification that gives an agent plenty to work with.

With 51,376 GitHub stars, it is one of the more widely adopted skills in the catalogue.

Substance
29/30
Structure
13/20
Description
15/15
Adoption
20/20
Freshness
15/15

Maintenance, license and trust

  • The repository was last updated 20 days ago, so free-tools is actively maintained.
  • It is released under the MIT license, a permissive license that allows use, modification and commercial use with attribution.
  • Its trust signals score 100/100, with no cautions. These come from repository metadata, not a code audit — read the skill file before letting an agent act on it.

Safety scan

No issues found

Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands.

Automated pattern scan on 2026-09-25. It catches known dangerous patterns, not every risk — read a skill before letting an agent act on it.

free-tools compared with similar skills

All 4 of these similar skills score higher than free-tools; compare them before choosing.

SkillScoreStarsUpdatedFormat
free-tools (this skill)by coreyhaines319251.4k20d agoSKILL.md
algorithmic-artby anthropics100177.9k2d agoSKILL.md
pptxby anthropics100177.9k2d agoSKILL.md
designby nextlevelbuilder100130.2k3d agoSKILL.md
ui-ux-pro-maxby nextlevelbuilder100130.2k3d agoSKILL.md

Frequently asked questions

How do I install free-tools?
Run npx skills add coreyhaines31/marketingskills --skill free-tools. The install tabs above show the steps for each supported agent.
Which AI agents does free-tools work with?
It is written for Universal, as a SKILL.md file. Other agents that read the same format can often use it too.
Is free-tools safe to use?
Our scan of the whole file found no instruction hijacking, hidden characters, credential access, data exfiltration or destructive commands. It is MIT-licensed and scores 100/100 on trust signals. Skills are instructions an agent will follow, so read the file before installing it and do not approve commands you do not understand.
Is free-tools still maintained?
The repository was last updated 20 days ago, so free-tools is actively maintained.

name: free-tools description: When the user wants to plan, evaluate, or build a free tool for marketing purposes — lead generation, SEO value, or brand awareness. Also use when the user mentions "engineering as marketing," "free tool," "marketing tool," "calculator," "generator," "interactive tool," "lead gen tool," "build a tool for leads," "free resource," "ROI calculator," "grader tool," "audit tool," "should I build a free tool," or "tools for lead gen." Use this whenever someone wants to build something useful and give it away to attract leads or earn links. For downloadable content lead magnets (ebooks, checklists, templates), see lead-magnets. metadata: version: 2.0.1

Free Tool Strategy (Engineering as Marketing)

You are an expert in engineering-as-marketing strategy. Your goal is to help plan and evaluate free tools that generate leads, attract organic traffic, and build brand awareness.

Initial Assessment

Check for product marketing context first: If .agents/product-marketing.md exists (or .claude/product-marketing.md, or the legacy product-marketing-context.md filename, in older setups), read it before asking questions. Use that context and only ask for information not already covered or specific to this task.

Before designing a tool strategy, understand:

  1. Business Context - What's the core product? Who is the target audience? What problems do they have?

  2. Goals - Lead generation? SEO/traffic? Brand awareness? Product education?

  3. Resources - Technical capacity to build? Ongoing maintenance bandwidth? Budget for promotion?


Core Principles

"Your product is my marketing opportunity." Bezos said "your margin is my opportunity." The engineering-as-marketing version: take a capability others monetize and build a free version as an acquisition channel. Unsplash gave away the stock photos Getty sold — and Getty acquired it. See references/tool-benchmarks.md for named cases and conversion numbers.

1. Solve a Real Problem

  • Tool must provide genuine value
  • Solves a problem your audience actually has
  • Useful even without your main product

2. Adjacent to Core Product

  • Related to what you sell
  • Natural path from tool to product
  • Educates on problem you solve

3. Simple and Focused

  • Does one thing well
  • Low friction to use
  • Immediate value

4. Worth the Investment

  • Lead value × expected leads > build cost + maintenance

Tool Types Overview

| Type | Examples | Best For | |------|----------|----------| | Calculators | ROI, savings, pricing estimators | Decisions involving numbers | | Generators | Templates, policies, names | Creating something quickly | | Analyzers | Website graders, SEO auditors | Evaluating existing work | | Testers | Meta tag preview, speed tests | Checking if something works | | Libraries | Icon sets, templates, snippets | Reference material | | Interactive | Tutorials, playgrounds, quizzes | Learning/understanding |

For detailed tool types and examples: See references/tool-types.md

For named case benchmarks (Unsplash, HubSpot Website Grader, Moz, Buffer, Shopify) with real conversion numbers: See references/tool-benchmarks.md


Ideation Framework

Start with Pain Points

  1. What problems does your audience Google? - Search query research, common questions

  2. What manual processes are tedious? - Spreadsheet tasks, repetitive calculations

  3. What do they need before buying your product? - Assessments, planning, comparisons

  4. What information do they wish they had? - Data they can't easily access, benchmarks

Validate the Idea

  • Search demand: Is there search volume? How competitive?
  • Uniqueness: What exists? How can you be 10x better?
  • Lead quality: Does this audience match buyers?
  • Build feasibility: How complex? Can you scope an MVP?

Lead Capture Strategy

Gating Options

| Approach | Pros | Cons | |----------|------|------| | Fully gated | Maximum capture | Lower usage | | Partially gated | Balance of both | Common pattern | | Ungated + optional | Maximum reach | Lower capture | | Ungated entirely | Pure SEO/brand | No direct leads |

Lead Capture Best Practices

  • Value exchange clear: "Get your full report"
  • Minimal friction: Email only
  • Show preview of what they'll get
  • Optional: Segment by asking one qualifying question

SEO Considerations

Keyword Strategy

Tool landing page: "[thing] calculator", "[thing] generator", "free [tool type]"

Supporting content: "How to [use case]", "What is [concept]"

Link Building

Free tools attract links because:

  • Genuinely useful (people reference them)
  • Unique (can't link to just any page)
  • Shareable (social amplification)

Build vs. Buy

Build Custom

When: Unique concept, core to brand, high strategic value, have dev capacity

Use No-Code Tools

Options: Outgrow, Involve.me, Typeform, Tally, Bubble, Webflow When: Speed to market, limited dev resources, testing concept

Embed Existing

When: Something good exists, white-label available, not core differentiator


MVP Scope

Minimum Viable Tool

  1. Core functionality only—does the one thing, works reliably
  2. Essential UX—clear input, obvious output, mobile works
  3. Basic lead capture—email collection, leads go somewhere useful

What to Skip Initially

Account creation, saving results, advanced features, perfect design, every edge case


Evaluation Scorecard

Rate each factor 1-5:

| Factor | Score | |--------|-------| | Search demand exists | ___ | | Audience match to buyers | ___ | | Uniqueness vs. existing | ___ | | Natural path to product | ___ | | Build feasibility | ___ | | Maintenance burden (inverse) | ___ | | Link-building potential | ___ | | Share-worthiness | ___ |

25+: Strong candidate | 15-24: Promising | <15: Reconsider


Task-Specific Questions

  1. What existing tools does your audience use for workarounds?
  2. How do you currently generate leads?
  3. What technical resources are available?
  4. What's the timeline and budget?

Common Pitfalls

  • Over-engineering — Shipping a bloated tool when the winning cases were tiny (Unsplash: 3 hrs; Website Grader: 2 engineers, 2 weeks). Scope to the one job.
  • Poor product integration — A tool with no natural path to your product earns traffic but not pipeline. The best cases surface the product's value (Moz Keyword Explorer = the paid product's demo).
  • Maintenance / security debt — Tools that scrape, call APIs, or take user input rot and become attack surfaces. Budget for upkeep before you build.
  • Vanity metrics — Visitors and usage feel good but don't pay. Track leads, qualification rate, and trial/signup conversion — the numbers the case library reports.

Related Skills

  • lead-magnets: For downloadable content lead magnets (ebooks, checklists, templates)
  • cro: For optimizing the tool's landing page
  • seo-audit: For SEO-optimizing the tool
  • analytics: For measuring tool usage
  • emails: For nurturing leads from the tool

Related Skills

View on GitHub
GitHub Stars51.4k
CategoryMarketing
Updated20d ago
Forks7.8k

Languages

JavaScript

Trust signals

100/100

From repository metadata: license, adoption, age and documentation. Not a code audit — see the Safety scan above for what the skill file itself contains.

No cautions