SanketSapkal

SanketSapkal/founder-skills

Plugin Claude Code

Adversarial startup idea interrogation pipeline — BUILD / KILL / PIVOT.

SanketSapkal/founder-skills

Plugin Claude Code

Adversarial idea interrogation followed by structured business modeling. Chains pressure-testing through business modeling to an explicit BUILD/KILL/PIVOT verdict.

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "why now", "is the timing right", "what's changed", "why didn't this exist before", "why is this possible now", "what's the tailwind", or needs to formalize whether there is a structural timing advantage for this idea — not just "AI is taking off.".

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "what's the analog", "who did this in another market", "similar companies", "comparable company", "what can I learn from", "who solved this before", or needs to find 3-5 companies that solved a structurally similar problem in a different market to extract lessons.

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "what are my assumptions", "what could go wrong", "riskiest bets", "risk assessment", "assumption testing", "what's the biggest risk", "what if I'm wrong", or needs to surface and prioritize the riskiest assumptions before building anything. Uses an Impact x Uncertainty…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "who are my competitors", "competitive landscape", "how am I different", "competitive analysis", "positioning", "competitive advantage", "what else is out there", "moat", "defensibility", "switching costs", or needs competitive intelligence with real competitor data…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "what should I build", "implementation plan", "build brief", "hand off to engineering", "product spec", "what do I build first", "pass this to a coding agent", or has received a BUILD verdict and needs a structured handoff document for a coding agent. Reads all…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "cold email", "outbound", "cold outreach", "email sequence", "reach out to prospects", "sales emails", "how do I contact customers", or needs personalized cold email sequences derived from the customer archetype. Not generic templates — sequences built from the archetype's…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "content strategy", "content marketing", "what should I write about", "blog strategy", "social media plan", "how do I build an audience", "thought leadership", "inbound marketing", or needs a content plan matched to the customer archetype's information sources and buyer…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "who is my customer", "define my user", "customer profile", "target customer", "buyer persona", "ICP", "ideal customer profile", "who am I selling to", "who would buy this", or needs to define a specific customer before market sizing, canvas, or competitive analysis. Forces…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "elevator pitch", "30 second pitch", "how do I describe this", "explain my startup", "pitch in one sentence", "two minute pitch", "quick pitch", or needs to generate 30-second, 2-minute, and 10-minute pitch versions from existing founder-outputs. Forces clarity on the one…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "founder-market fit", "am I the right person", "founder fit", "why me", "why am I building this", "founder qualification", "domain expertise", "skin in the game", or needs to assess whether the founder/team is uniquely positioned to win this market. A major investor concern…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "I have a startup idea", "help me evaluate this idea", "run the full pipeline", "what should I run next", "where am I in the pipeline", or presents any new product or business concept for the first time. Provides pipeline awareness, recommends the next founder-skills step…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "go to market", "GTM", "how do I get customers", "acquisition strategy", "growth channels", "marketing plan", "distribution", "how do I sell this", or needs a structured go-to-market strategy. Uses the Bullseye framework to rank 19 channels and design cheap tests for the…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "how would an investor see this", "investor perspective", "what would a VC think", "seed angel", "Series A lens", "strategic investor", "investor scorecard", or needs to understand how different investor types would evaluate the same idea. Re-reads the verdict through seed…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "how big is this market", "market size", "TAM", "SAM", "SOM", "total addressable market", "market opportunity", "how many potential customers", or needs bottom-up market sizing with real data sources rather than top-down guesses.

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "investor questions", "tough questions", "objection handling", "what will investors ask", "prepare for due diligence", "hardest questions", "Q&A prep", or needs to pre-generate the 8-10 hardest questions an investor will ask and draft honest answers. The questions are…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "one liner", "tagline", "how do I describe this in one sentence", "value prop", "headline", "positioning statement", "what do I say on the landing page", "how do I explain this", or needs obsessive refinement of the one-sentence value proposition with explicit conversion…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "pitch deck", "investor deck", "fundraising deck", "Sequoia format", "put together a deck", "I need to pitch", or needs to assemble all founder-outputs into a structured investor pitch narrative. Follows the Sequoia narrative arc and enforces logical coherence between…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "how should I pivot", "what are my pivot options", "the verdict was kill", "the verdict was pivot", "what else could I do with this", "salvage this idea", or has received a KILL or PIVOT verdict and needs concrete alternative directions. Generates 3 structured pivot paths …

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "I have an idea", "is this worth building", "help me think through this", "I want to build", "validate my idea", "pressure test this", "is this a good idea", "willingness to pay", or describes a new startup, product, or business concept. Adversarial interrogation that kills…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "how do I validate this", "what's the MVP", "test before building", "validation experiment", "pretotype", "how do I test this assumption", "minimum viable experiment", or needs to design the smallest possible experiment to test high-risk assumptions before building anything.

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "I want to work in [domain]", "I'm interested in [space]", "looking for problems to solve", "problem discovery", "find a problem", "I don't have an idea yet but", or has a domain interest but no specific problem identified. Helps surface candidate problems before any idea…

SanketSapkal/founder-skills

Skill Claude CodeCodex

This skill should be used when the user says "problem statement", "define the problem", "what's the problem", "articulate the problem", "what am I solving", "frame this problem", or has a vague problem in mind that needs structured articulation. Forces precise articulation of the problem before any solution work.