free-tools
An agent skill by coreyhaines31, from coreyhaines31/marketingskills. Tags: automation, generative, marketing, product-strategy, web.
What it does
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.
Install
With the skills CLI, which installs into Claude Code, Codex, Cursor and other agents:
npx skills add coreyhaines31/marketingskills --skill free-toolsOr copy the skill folder into Claude Code's skills directory by hand (~/.claude/skills for every project, or .claude/skills inside one):
git clone --depth 1 https://github.com/coreyhaines31/marketingskills
cp -r marketingskills/skills/free-tools ~/.claude/skills/free-toolsSafety box score
Grade A, minimal risk: 4 of 100 risk points, rated 2026-09-22. The grade rates what the skill and its scripts can reach on the machine of whoever installs it, across eight categories from shell execution to secrets access. How the score works.
This skill is a text-only marketing strategy guide for planning free tools; it does not ship code, run commands, or contact external services. The main exposure is limited to reading optional local context files and using embedded marketing advice/benchmarks to shape recommendations.
| Category | Level | Why |
|---|---|---|
| Code & shell execution | 0 (none) | No scripts, shell commands, or code evaluation are included; the files are markdown guidance only. |
| Network access | 0 (none) | The skill does not download content or send data to remote hosts. |
| Filesystem reach | 1 (low) | It may read local context files such as `.agents/product-marketing.md`, `.claude/product-marketing.md`, or `product-marketing-context.md`, but it does not write or delete files. |
| Secrets & credentials | 0 (none) | There is no request to access tokens, keys, passwords, browser sessions, or other credential stores. |
| Privilege & persistence | 0 (none) | The skill does not ask for sudo, global installs, services, or OS/shell configuration changes. |
| Instruction hijack surface | 0 (none) | No hidden prompts, instruction to ignore higher-priority rules, or external prompt-following behavior appears in the files. |
| Irreversible actions | 0 (none) | It only advises on strategy; it does not push, publish, pay, book, or otherwise act on the user’s behalf. |
| Transparency | 0 (none) | All reviewed content is readable markdown; there are no binaries, obfuscated blobs, or runtime-downloaded code. |
Before installing
- Read `SKILL.md` and the referenced benchmark/type docs to confirm the framework matches your use case.
- If you rely on a product-marketing context file, verify which local file the skill will read in your setup.
- Confirm you are comfortable with the skill’s advice being shaped by its embedded case benchmarks and marketing heuristics.
Rated 2026-09-22 by an automated review of 4 files from the skill's repository.
Source
- Repository
- coreyhaines31/marketingskills (all skills from this repository)
- Path
- skills/free-tools/SKILL.md
- Branch
- main
- Collection
- marketingskills
- Updated
- 2026-09-21
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