Ready-made skills for Claude.
Curated workflows that run inside Claude and use Marfin's MCPs. Install free, connect the MCP, get the result in seconds.
Start with these
SEO Quick Audit
Full SEO audit of any URL in 60 seconds. 7 pillars, score, top 3 prioritized actions with a share-ready card.
Stoic Morning Pages
Stoic morning practice in 5 steps: premeditatio, dichotomy of control, view from above, intention for the day and gratitude. In partnership with @estoicodiario.
Pitch Deck Roast
Brutal, structured critique of your pitch deck across 10 criteria. Points out what's vague, what you're hiding and what to cut.
Cold Email Engine
Cold email personalized from the prospect's site and your ICP. Generates 3 variations with different hooks.
Runway Projection
Runway across 3 scenarios (base/bear/bull) over 18 months + the risk month identified + 3 actions to extend it by 3 months each. Refuses optimistic-only projections.
Decision Doc
1-page ADR with a mandatory rollback plan. Refuses trivially reversible decisions and refuses to ship without a rollback.
26 skills
SEO Quick Audit
Full SEO audit of any URL in 60 seconds. 7 pillars, score, top 3 prioritized actions with a share-ready card.
LinkedIn Postmortem
Diagnosis of your last 30 LinkedIn posts: what performed, the patterns behind the hits and 3 hypotheses for the next cycle.
CNPJ Dossiê
Full dossier on any Brazilian CNPJ: registration data, partners, capital, activities and risk indicators on a single page.
Keyword Opportunity
Finds keywords ranking 8-20 on your domain: the cheapest opportunities to lift traffic without creating new content.
Stoic Morning Pages
Stoic morning practice in 5 steps: premeditatio, dichotomy of control, view from above, intention for the day and gratitude. In partnership with @estoicodiario.
3-3-3 Method
Your day planned 3-3-3: 3h of deep work on ONE outcome, 3 priority tasks, 3 non-negotiable routines. In 5 minutes.
Pitch Deck Roast
Brutal, structured critique of your pitch deck across 10 criteria. Points out what's vague, what you're hiding and what to cut.
PRD Writer
Turns a raw feature idea into a dev-ready PRD: problem, metric, scope, edge cases, rollout.
Cold Email Engine
Cold email personalized from the prospect's site and your ICP. Generates 3 variations with different hooks.
Discovery Call Script
30-min discovery call script for ONE hypothesis and ONE prospect. 4 timed blocks, signals per question, fallbacks and 3 closes (hot/warm/cold).
Call Postmortem
Sales-aware transcript postmortem in 5min: signals with quote+timestamp, objections classified by tone (hard/soft/performative), risks with probability, next steps with dates.
NPS Clusters
3-5 thematic clusters per bucket (promoters/passives/detractors) from 50+ qualitative responses. Severity, verbatim quote, concrete action. Top 3 actions by leverage. 3-5 gold quotes for your landing page.
Runway Projection
Runway across 3 scenarios (base/bear/bull) over 18 months + the risk month identified + 3 actions to extend it by 3 months each. Refuses optimistic-only projections.
Pricing Stress Test
SaaS pricing stress test across 6 lenses (anchor/decoy/frame/granularity/WTP/churn) with a 1-5 score + 2 weaknesses + 3 moves to TEST (hypothesis/cost/metric/risk/rollback) + a re-eval trigger.
Competitor Teardown
Public teardown of a competitor: positioning, price, claims, segment. No paid tools.
Feature Matrix
3x3 matrix (up to 5x5) vs 2-4 direct competitors: 3 real differentiators, 3 defensive gaps rated by impact and 1-2 redundancies to CUT from the pitch. Capped at 4 columns to preserve decision power.
OKR Breakdown
Audits a vague OKR and returns 5-7 measurable KRs (baseline/target/deadline/confidence), 1-3 initiatives per KR and the top 2 prioritized by impact×effort. Refuses task-as-KR and targets without rationale.
Weekly Review
Weekly review script for the solo founder: wins, losses, pending decisions, next week's focus.
Decision Doc
1-page ADR with a mandatory rollback plan. Refuses trivially reversible decisions and refuses to ship without a rollback.
Content Calendar 30
30 days with a pre-written hook, a 5-format mix (post/thread/video/newsletter/case study), 50/30/20 tone (educational/storytelling/promotional) and 3 tentpoles marked. Distributed by each channel's peak time.
Landing Copy Engine
Paste-ready PAS landing copy: 3 headlines (≤9 words, A/B candidates), sub, 3 before-vs-after bullets, social proof by stage, how-it-works, 6-objection FAQ, CTA + microcopy, A/B priorities.
Customer Interview 5-Why
5-Why script for customer discovery: every Why about past behavior (never future intent), with the signal to listen for, follow-ups for socially-correct answers and a verbal bridge to the next one. Post-call summary template included.
Changelog from Commits
End-user changelog in plain prose from a raw git log. Filters noise (chore/refactor/ci), groups by theme, translates jargon, detects breaking changes. 4 sections + summary + social hook.
PR Triager
PR triage in 2min: impact, review time, suggested owner, risky files, 8 red flags, questions for the author. Before you open a single file.
Stack Cost Compare
Compares 2-4 stacks for YOUR workload with projected cost, hidden gotchas (NAT Gateway, egress, CPU limits), trade-offs per dimension and a recommendation with explicit confidence + a trigger to re-evaluate.
Daily Standup Synth
5 standups → 1 page in ≤350 words for investors/board: 3 real wins, blockers that matter (3+ days OR blocking deploy), plan vs reality, an open question with 2-3 options.
Every skill uses one or more MCPs
Full SEO analysis by URL — 7 pillars, score, prioritized actions.
Social media metrics and analytics in a single API.
Generation and analysis of LinkedIn-optimized content.
Publishing and scheduling across every social network.
Aggregated Search Console and Analytics data.
Brazilian APIs unified: CNPJ, CPF, CEP, FIPE, and more.
Deals, contacts, companies and activities from any AI agent.
Running quests, training plans and progression for athletes.
Security findings your AI can list, triage and fix.