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startup-design

Design, validate, and plan a startup from scratch. Covers market research, competitive analysis, business model, brand identity, product definition, financial projections, and validation experiments. Trigger when the user has a startup idea to explore, wants to validate a business concept, needs a business plan or lean canvas, asks for market sizing or competitive landscape, wants brand positioning or go-to-market strategy, or says anything like "I have an idea for..." or "is this idea worth pursuing". Also handles resuming from a previous checkpoint.

72

Quality

88%

Does it follow best practices?

Impact

No eval scenarios have been run

SecuritybySnyk

Advisory

Suggest reviewing before use

SKILL.md
Quality
Evals
Security

Quality

Content

85%

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

This is a well-crafted, comprehensive skill for a genuinely complex multi-phase process. Its greatest strengths are the clear workflow with multiple validation gates, highly actionable guidance with specific criteria and file paths, and excellent progressive disclosure through well-organized reference files. The main weakness is moderate verbosity — some sections could be tightened without losing clarity, particularly where concepts are explained that Claude would already understand or where the honesty protocol is both referenced and summarized.

DimensionReasoningScore

Conciseness

The skill is extensive (~500+ lines) but covers a genuinely complex multi-phase process. Most content earns its place — phase definitions, gate criteria, output specs are necessary. However, there's some redundancy (honesty protocol summarized after referencing the file, repeated explanations of what customer interviews do) and occasional over-explanation of concepts Claude would understand (e.g., explaining what a Pre-Flight Check is for, what synthesis means). Could be tightened by ~15-20%.

2 / 3

Actionability

Highly actionable throughout: specific file paths for outputs, exact search query templates for pre-flight checks, concrete gate criteria (e.g., '4+ of 5 interviewees confirm'), specific formatting for financial stage declarations, numbered steps with clear deliverables, structured comparison matrix column definitions, and precise pass/fail thresholds. Every phase has explicit output files and clear instructions on what to produce.

3 / 3

Workflow Clarity

Excellent multi-step workflow with explicit sequencing (phases 0-8 plus sub-phases), multiple validation gates (Research Gate 3.5, Interview Gate in 3.7, checkpoints before Phases 5 and 7), clear feedback loops (verify → fix → proceed), resume capability via PROGRESS.md, and explicit go/no-go decision points with green/yellow/red light criteria. The verification pass in Phase 3.5a adds an additional quality checkpoint. Missing validation steps are not an issue here.

3 / 3

Progressive Disclosure

Exemplary progressive disclosure: the main SKILL.md serves as a clear overview with phase-by-phase structure, while 16 reference files are clearly cataloged in a table with 'When to Read', approximate line counts, and purpose. Instructions explicitly say 'Read only what you need for the current phase' and 'Don't load all wave files at once.' References are one level deep and clearly signaled with '> **Reference:** Read...' callouts at the appropriate points.

3 / 3

Total

11

/

12

Passed

Description

92%

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

This is a strong description that clearly articulates a comprehensive set of capabilities and provides explicit trigger guidance with natural user phrases. Its main weakness is the breadth of coverage, which could create overlap with more specialized skills in areas like financial modeling, brand design, or market research. The description is well-structured and uses appropriate third-person voice throughout.

DimensionReasoningScore

Specificity

Lists multiple specific concrete actions: 'Design, validate, and plan a startup from scratch' followed by detailed coverage areas including market research, competitive analysis, business model, brand identity, product definition, financial projections, and validation experiments.

3 / 3

Completeness

Clearly answers both 'what' (design, validate, plan a startup covering multiple domains) and 'when' with an explicit 'Trigger when...' clause listing specific scenarios and even natural user phrases.

3 / 3

Trigger Term Quality

Excellent coverage of natural trigger terms users would say: 'startup idea', 'validate a business concept', 'business plan', 'lean canvas', 'market sizing', 'competitive landscape', 'brand positioning', 'go-to-market strategy', and the very natural phrase 'I have an idea for...' and 'is this idea worth pursuing'.

3 / 3

Distinctiveness Conflict Risk

While the startup planning niche is fairly specific, several sub-capabilities like 'market research', 'competitive analysis', 'financial projections', and 'brand identity' could overlap with standalone skills focused on those individual areas. The broad scope increases conflict risk with more specialized skills.

2 / 3

Total

11

/

12

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.

Validation11 / 11 Passed

Validation for skill structure

No warnings or errors.

Repository
ferdinandobons/startup-skill
Reviewed

Table of Contents

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