CtrlK
BlogDocsLog inGet started
Tessl Logo
SkillPublic

free-tool-strategy

When the user wants to build a free tool for marketing — lead generation, SEO value, or brand awareness. Use when they mention 'engineering as marketing,' 'free tool,' 'calculator,' 'generator,' 'checker,' 'grader,' 'marketing tool,' 'lead gen tool,' 'build something for traffic,' 'interactive tool,' or 'free resource.' Covers idea evaluation, tool design, and launch strategy. For pure SEO content strategy (no tool), use seo-audit or content-strategy instead.

71

Quality

89%

Does it follow best practices?

Run evals on this skill

Adds up to 20 points to the overall score

View guide
SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

78%Weight 40%Scale 1-5

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

A strong, highly actionable body: concrete rubrics, templates, thresholds, and measurement targets that assume Claude's competence without re-teaching known concepts. The main defect is bundle integration — the launch playbook reference is orphaned (never linked) while its subject matter is partially duplicated inline — plus a vague iterate step in Mode 3.

Suggestions

Reference references/launch-playbook.md from Mode 3 (Launch and Measure) and the 'Plan the launch' row of the Output Artifacts table — the file exists in the bundle but no path in SKILL.md points to it, so its pre-launch checklist and channel playbook are unreachable.

Defer the inlined launch/SEO detail (pre-launch steps, directory submission, outreach specifics) to the launch playbook and keep only the overview in SKILL.md, removing the duplication between the two.

Replace Mode 3's vague "Iterate: usage data tells you what to improve" with an explicit feedback loop, e.g., tie specific 90-day metric shortfalls (traffic < 500 sessions/mo, lead conversion < 5%, referring domains < 10) to named corrective actions.

DimensionReasoningScore

Conciseness

The body is dense with tables, checklists, and templates — "Max 3 inputs to get initial results", "Every field drops completion by ~10%", the 6-factor scoring table, the landing-page outline — with almost no explanation of concepts Claude already knows. Minor trimmable padding remains: the persona preamble ("You are a growth engineer who has built and launched free tools that generated hundreds of thousands of visitors..."), and slight redundancy between "Minimal Friction" ("Mobile-optimized — 50%+ of tool traffic is mobile") and the "Mobile-First" section.

4 / 5

Actionability

For an instruction-only (strategy) skill the guidance is fully concrete and executable: a 6-factor rubric with explicit 1/5 anchors and a decision guide ("25–30: Build it, now"... "<12: Pass, or rethink the concept"), a copy-paste-ready SoftwareApplication schema JSON block, a landing-page skeleton, a metrics table naming the tools per metric, 90-day targets, and a runnable script invocation ("Run `scripts/tool_roi_estimator.py`"). Per the rubric's scoring notes, absence of code is not penalized when the guidance is this specific.

5 / 5

Workflow Clarity

Each mode has a clear numbered workflow with a validation checkpoint in Mode 1 ("Validate with keyword data before committing engineering time") and decision branches in the scoring guide ("18–24: Strong candidate, validate keyword volume first"). Not a 5 because Mode 3's iterate step is vague ("usage data tells you what to improve") with no explicit feedback loop tying measured metrics to concrete next actions.

4 / 5

Progressive Disclosure

Structure exists and referenced paths are real — "See [references/tool-types-guide.md](references/tool-types-guide.md)" and "Run `scripts/tool_roi_estimator.py`" — but the bundle's references/launch-playbook.md (pre-launch checklist, launch channels, 4-week campaign detail) is never referenced from SKILL.md, so it is unreachable, while overlapping launch content (Mode 3 workflow, landing-page/SEO sections) is inlined instead of deferred. This matches the anchor-3 pattern of references present but poorly integrated and content that should be separate kept inline, rather than anchor 4's 'minor organization gaps.'

3 / 5

Total

16

/

20

Passed

Description

95%Weight 40%Scale 1-5

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

An excellent description: explicit what and when, a rich list of natural trigger synonyms, and explicit disambiguation against the nearest neighboring skills. The only minor weakness is that capabilities are stated as three covered areas rather than fine-grained concrete actions.

DimensionReasoningScore

Specificity

The description lists several specific capability areas — "Covers idea evaluation, tool design, and launch strategy" — plus concrete goals ("lead generation, SEO value, or brand awareness"). It falls just below the anchor-5 examples, which enumerate many fine-grained actions ("Extract text and tables from PDF files, fill forms, merge documents"); here the three areas are named but stated as topics the skill 'covers' rather than as explicit actions, and measurement is not mentioned.

4 / 5

Completeness

Both what and when are explicit: what — "build a free tool for marketing — lead generation, SEO value, or brand awareness... Covers idea evaluation, tool design, and launch strategy"; when — "Use when they mention 'engineering as marketing,' 'free tool,' 'calculator,'...". This mirrors the anchor-5 exemplar that answers both questions with concrete trigger phrases. Not lower because nothing is missing or merely implied.

5 / 5

Trigger Term Quality

Trigger coverage is comprehensive and natural: "'engineering as marketing,' 'free tool,' 'calculator,' 'generator,' 'checker,' 'grader,' 'marketing tool,' 'lead gen tool,' 'build something for traffic,' 'interactive tool,' or 'free resource.'" These are synonyms and phrasings a user would actually say, matching the anchor-5 pattern of comprehensive synonym coverage (file extensions are not applicable to this strategy skill).

5 / 5

Distinctiveness Conflict Risk

Clear niche (free marketing tools) with distinct triggers and explicit boundary guidance: "For pure SEO content strategy (no tool), use seo-audit or content-strategy instead." Generic terms like 'calculator' are bounded by the 'for marketing' framing, keeping conflict risk minimal per the anchor-5 description.

5 / 5

Total

19

/

20

Passed

Validation

100%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation — 16 / 16 Passed

Validation for skill structure

No warnings or errors.

Repository

alirezarezvani/claude-skills

Path

marketing-skill/skills/free-tool-strategy/SKILL.md

Reviewed

Table of Contents

Is this your skill?

If you maintain this skill, you can claim it as your own. Once claimed, you can manage eval scenarios, bundle related skills, attach documentation or rules, and ensure cross-agent compatibility.