MStack

Agents for the work GTM, Growth, and Product teams actually do.

Built by Mothi Venkatesh — Associate Director, Product Marketing at Cashfree Payments — after 11 years inside payments and fintech GTM orgs, watching the same workflows get rebuilt in every spreadsheet, every notebook, every n8n graph.

The structured 80% of GTM, Growth, and Product is finally agent-shaped. MStack is the part of my stack I'm willing to ship in public.

8 plugins · 176+ skills · 43+ chained slash commands · 4 templates. Install the full stack or the one plugin you need this week.

claude plugin marketplace add mothivenkatesh/MStack

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The thesis

Most GTM, Growth, and Product work decomposes into two halves:

• 80% structured workflows — research, qualification, ICP scoring, attribution, churn analysis, PRDs, launches, weekly cadences, follow-ups. Rule-shaped, repeatable, and the reason your week burns.
• 20% fuzzy judgment — what to bet on, who to fight, what to kill, how to position, when to ship. This is where humans earn their seat.

Most teams write essays about the 20% while drowning in the 80%. MStack inverts that: codify the 80% as installable agents, free yourself for the 20%.

Every plugin in this repo is a tactical implementation of that one idea, calibrated for 2026 — post-MCP, post-Claude 4.7, post-Skills spec.

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Why I built it

Two things converged in 2025–2026 that made me stop sketching workflows on whiteboards and start shipping agents:

1. The Skills spec landed. Anthropic's progressive-disclosure model meant I could write a workflow once, scope it tightly, and have it auto-trigger across my work. Not a chatbot — an installable capability.
2. My own consistency problem. The most honest feedback I get on myself is "I'm not consistent." Building agents is how I stop letting consistency depend on willpower. Agents are the consistency layer.

MStack is the side of that stack I can share. Brand-safe, role-shaped, dogfooded daily on payments work at Cashfree, D2C research, partner outreach, FinX seeding, Twitter OS, and Relay.

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Install

Add the marketplace

claude plugin marketplace add mothivenkatesh/MStack

Install the plugins you want

# The full stack
claude plugin install opb-curriculum@MStack
claude plugin install gtm-analytics@MStack
claude plugin install gtm-ops@MStack
claude plugin install ai-sdr@MStack
claude plugin install devrel-playbook@MStack
claude plugin install pmm-ops@MStack
claude plugin install product-ops@MStack
claude plugin install funnel-marketing@MStack

Or pick one — every plugin is independently installable.

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The 8 plugins, mapped to the work

Pillar	Plugin	What's inside	When to reach for it
Foundation	opb-curriculum	22 lessons · 26 core skills · 7 chained commands · 4 templates	The opinionated path from while True: to a monetized agent product. Start here if you're still building intuition.
GTM	gtm-ops	11 skills running the 3-loop GTM model on Salesforce + n8n + Claude. Agents, SQL, dashboards, evals, full operating spec.	Running an AI-first GTM org and need an operating system.
GTM	ai-sdr	Autonomous SDR agent: router + 7 modes (research, validate, outreach, follow-up, batch, analytics). Score-gated pipelines, TSV staging, NEVER/ALWAYS rails.	Replacing a 25-node n8n outbound graph with one Claude-native agent.
GTM / PMM	pmm-ops	SuperPMM — guided 5-step GTM Builder (Research → CI → PRFAQ → Positioning → GTM Plan) using FletchPMM, April Dunford, Winning by Design.	A PMM doing a launch in ~60 minutes, not 6 weeks.
Growth	gtm-analytics	40 enterprise GTM-analytics skills: attribution, deal-rot, propensity-to-renew, churn risk, multi-touch attribution, golden-path journey, sales rep effectiveness.	Past $1M ARR and need real revenue-ops discipline.
Growth	funnel-marketing	funnel-builder reverse-engineers a competitor's launch in 4 phases — grounded in 45,056 real Reddit conversations. psychology-triggers applies 218 persuasion levers to copy.	Decoding a competitor's funnel, or writing high-converting copy.
Growth / DevRel	devrel-playbook	27 community-building skills + applied case studies + a synthetic developer ICP dataset.	Growing a developer or creator audience.
Product	product-ops	6-stage execution SOP for small teams + 65 PM skills + 36 chained slash commands across discovery, strategy, execution, market research, GTM, growth, data analytics, toolkit. Combines a Scrut-tested SOP with phuryn/pm-skills (MIT).	A PM/team that needs PRD/discovery/strategy/release rituals codified.

Each plugin has its own README. Read it before you install.

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Quick start (after installing opb-curriculum)

/find-wedge        Discover a profitable wedge end-to-end (wedge → ICP → validation)
/build-offer       Construct an offer + price it for margin
/start-outbound    Run a 100-prospect cold campaign (signals → emails → drafts)
/audit-product     5-dimensional product audit (harness, production, boring-stack, margin, retention)
/diagnose-stall    Why you're stuck — pick the ONE bottleneck
/plan-week         Design your operator's week
/annual-review     Annual scorecard + update your 10-year statement

These chain skills into end-to-end workflows. Type one to start.

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Who this is for

• PMMs running launches, positioning, CI, messaging, sales enablement
• Growth & RevOps running attribution, propensity-to-renew, churn, multi-touch, golden-path journeys, rep effectiveness
• SDRs running cold outbound at volume without burning their lists
• Product Ops running discovery → PRD → release rituals
• DevRel and community builders growing technical audiences
• Founders doing all of the above as one person

You can already code (Python or TypeScript). You've used Claude Code or Cursor enough to feel what an agent is. You don't need hand-holding on git. You're tired of writing the same workflow into a different surface every quarter.

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How it gets built

I work in payments. Every plugin in MStack is built and dogfooded inside my own work — Cashfree campaigns, partner outreach, D2C research, FinX seeding, Twitter OS, Relay. When something compounds across more than one workflow, it gets pulled out and shipped here.

This isn't a side project I theorize about. It's the harness I use Monday morning.

The companion projects you'll see referenced across the skills:

• Twitter OS — draft-and-approve content agent for X / LinkedIn / Bluesky / Threads via Typefully
• Relay — runtime for goal-driven workflow agents (Cashfree-internal; public skills pack incoming)
• reddit-scraper, tweet-harvest, review-scrape — public scrapers that feed the research / funnel / CI skills
• D2C Reddit research — 28K-row corpus validating real fintech use cases, used by funnel-marketing and gtm-analytics
• mothi.work — the writing leg

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The 8 principles

Show up in every plugin:

1. Distribution is the harder half. Engineering excellence is necessary but not sufficient.
2. Margin is destiny. Per-token pricing kills you; value-based pricing on durable problems wins.
3. Compound or die. One-time wins make great social posts. Recurring wins make great businesses.
4. The boring stack ships. Anthropic SDK + a while loop + Postgres + Stripe will outship the latest agent framework.
5. The model is not the moat. Your moat is data, distribution, retention, and trust.
6. Honest > impressive. Lying to yourself about your numbers is the most expensive thing you'll do.
7. Time-in-market beats market-timing. The 5-year operator beats the 12-month sprinter.
8. AI is not always the answer. Most production "AI products" are a workflow engine + 1–2 LLM steps. The agent loop is for the fuzzy 20%, not the structured 80%.

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Repo layout

.
├── .claude-plugin/marketplace.json    # 8 plugins listed here
└── plugins/
    ├── opb-curriculum/    26 skills · 7 commands · 4 templates · 22 lessons
    ├── gtm-analytics/     40 enterprise GTM-analytics skills
    ├── gtm-ops/           11 skills · agents/ sql/ src/ dashboards/ evals/ docs/
    ├── ai-sdr/             3 skills · modes/ data/ scripts/
    ├── devrel-playbook/   27 skills · applied/ · synthetic-icp/
    ├── pmm-ops/            1 skill (SuperPMM) · docs/ src/ output/
    ├── product-ops/       66 skills · 36 commands · upstream/pm-skills/
    └── funnel-marketing/   2 skills · case-studies/ · data/ (45K Reddit conversations)

Each plugin has its own .claude-plugin/plugin.json and is independently installable.

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Skill naming convention

Across every plugin:

• Skill directory name = lowercase kebab-case, descriptive of what the skill does.
• No redundant plugin-name prefix — plugins/<plugin>/skills/<skill>/ already scopes it.
• Sub-domain prefix only for disambiguation — product-ops keeps pm-<sub-domain>-* prefixes from upstream phuryn/pm-skills because of real name collisions.
• The name: field in each SKILL.md frontmatter matches the directory name exactly.

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Further reading (cited throughout)

• Alex Hormozi — $100M Offers / $100M Leads (offer construction, cold outbound mechanics)
• Patrick McKenzie — Kalzumeus blog (bootstrapped SaaS, cold email, "Don't Call Yourself a Programmer")
• Jason Cohen — A Smart Bear (bootstrapped SaaS economics)
• Tyler Tringas — Calm Company Fund writings
• Pieter Levels — multi-product solo operator (the "boring stack" archetype)
• Rob Fitzpatrick — The Mom Test (customer interview method)
• Madhavan Ramanujam — Monetizing Innovation (pricing framework)
• April Dunford — Obviously Awesome (positioning)
• Anthropic — Claude API docs, prompt caching, Skills spec
• OWASP — MCP Top 10 (agent security)

Full credit chain: ACKNOWLEDGMENTS.md.

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License

MIT. Fork it, ship it, sell it.

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Built by @mothivenkatesh · mothi.work · Bengaluru