santhoshstack

Personal AI skills by Santhosh Gandhi. VC content creator, systems thinker, author, AI-enabled builder.

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What this is

A collection of Claude Code skills I find useful and interesting. I open-source them in case others do too.

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Philosophy

AI tools forget. You shouldn't have to repeat yourself.

Every session starts from zero unless you build systems that survive context resets. Every token wasted on verbose responses or unnecessary file reads is a token not spent on the actual problem.

I'm not a software engineer. I'm sharing what I'm exploring as someone who came to this from a different direction, and I believe that perspective is useful, especially for others who aren't engineers either.

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Skills

Skill	What it does	Invoke
context-manager	Three-layer context system. SETUP builds docs/context/ so any AI tool can resume without re-reading everything. Two files per domain: operational ({domain}.md) and reference ({domain}-ref.md). UPDATE distills sessions into long-term learnings.	/context-manager
arch-map	Generates docs/ARCHITECTURE.md with a Mermaid system diagram, plain English overview, data flow walkthrough, and tech stack rationale. Share with stakeholders, collaborators, contributors.	/arch-map
frugal-token-usage	Mid-session audit. Stops unnecessary Bash calls, enforces dedicated tools, cuts verbose responses. Run when a session feels bloated.	/frugal-token-usage
foresight-intelligence	Strategic foresight using IFTF methodology. Soft Predict (instant) and Hard Predict (deterministic Python pipeline, identical output every run).	/foresight-intelligence
review	Production-readiness review. Finds real bugs: logic errors, null access, data loss, auth gaps, race conditions, hardcoded secrets. Prioritised findings with exact file:line references. No style feedback.	/review
security-audit	Security audit covering OWASP Top 10: injection, auth gaps, secrets in code, missing validation, info leakage, CORS misconfig, missing rate limiting. Each finding includes attack vector and fix.	/security-audit
whybroken	Root-cause tracer. Forms a hypothesis, follows the execution path to the actual cause, proposes the precise fix. Never patches symptoms.	/whybroken
post-ai-thinking	Unbiased solution space explorer. Strips inherited heuristics, enumerates approaches across 7 paradigms (human heuristic, hardware-native, theoretical limits, biology-inspired, economic/incentive, AI-augmented, hybrid), then lets you choose. Auto-calibrates depth.	/post-ai-thinking
product-pressure-test	Product pressure test before you build. Startup mode: 6 YC-style forcing questions that expose demand reality. Builder mode: generative brainstorming for side projects and hackathons. Produces a feedback doc, not code.	/product-pressure-test
usability-heuristics	Usability audit against Nielsen's 10 heuristics. Same checklist every run, same severity scale. Produces severity-sorted findings with exact location, fix, and a top-3 action list.	/usability-heuristics

Tip for frugal-token-usage: The rules work better as permanent standing orders than on-demand. Copy them into ~/.claude/CLAUDE.md. A starter file is in claude.md.example.

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Install

Requires Claude Code to be installed.

AI-native

Tell Claude Code which skill you want, or install everything at once:

Install the <skill-name> skill from github.com/isanthoshgandhi/santhoshstack

Install all skills from github.com/isanthoshgandhi/santhoshstack

Replace <skill-name> with any name from the Skills table above. Claude handles the rest. No commands, no paths, no platform differences.

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Manual (fallback)

Clone once:

git clone https://github.com/isanthoshgandhi/santhoshstack.git

Copy one skill or all:

Mac / Linux:

# One skill
cp -r santhoshstack/skills/<skill-name> ~/.claude/skills/

# All skills
cp -r santhoshstack/skills/* ~/.claude/skills/

Windows (PowerShell):

# One skill
Copy-Item -Recurse santhoshstack\skills\<skill-name> $env:USERPROFILE\.claude\skills\

# All skills
Copy-Item -Recurse santhoshstack\skills\* $env:USERPROFILE\.claude\skills\

Verify:

ls ~/.claude/skills/        # Mac / Linux

ls $env:USERPROFILE\.claude\skills\   # Windows

No restart needed.

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More from Santhosh Gandhi

santhoshgandhi.com

Writing & Media

• Medium: Writing on venture capital, startups, and AI
• YouTube: VC with Santhosh
• Instagram: @vcwithsanthosh

Book

• Notes of an Unconventional UX Researcher: Kindle · Paperback

Open source

• venture-capital-intelligence: Startup screening, pitch decks, cap tables, financial modeling
• awesome-vc-opensource: Curated list of open-source tools for VC and startups

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MIT License