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SKILL verified MIT Self-run

Sales

skill-samuelcastro-startup-skills-sales · by samuelcastro

Guide founders through B2B sales from first deal to scalable sales engine. Use when a founder says "help me design my sales process", "how should I start selling this?", "write a cold email sequence", "create a demo script", "help me build a proposal", "how do I forecast my pipeline", "what CRM should I use", "SOW template", "sales playbook", or asks about outbound sales, closing deals, pipeline…

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Install

$ agentstack add skill-samuelcastro-startup-skills-sales

✓ scanned · ✓ verified, works with Claude Code, Cursor, and more.

Security review

✓ Passed

No issues found. Passed automated security review. · v0.1.0 How review works →

  • Prompt-injection patterns
  • Secret / credential exfiltration
  • Dangerous shell & filesystem operations
  • Untrusted network calls
  • Known-malicious package signatures

What it can access

  • Network access No
  • Filesystem access No
  • Shell / process execution No
  • Environment & secrets No
  • Dynamic code execution No

From automated source analysis of v0.1.0. “Used” means the capability is present in the source — more access means more to trust, not that it’s unsafe.

View the full security report →

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Reliability & compatibility

Security review passed
0 installs to date
no reviews yet
3mo ago

Declared compatibility

Claude CodeClaude Desktop

Compatibility is declared by the source manifest. End-to-end runtime verification is coming, see below.

Preview Execution monitoring

We're building live execution health for every listing: tool-call success rate, median latency, uptime, and last-checked timestamps, measured, not self-reported. It isn't live yet, so we don't show numbers we can't stand behind.

How agent discovery & health will work →
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About

B2B Sales Skill

Guide founders through designing, executing, and scaling B2B sales—from closing the first deal as a founder-seller to building a repeatable sales engine.

Reference Files

  • references/sales-process.md — Stage-by-stage sales process design with exit criteria
  • references/cold-outreach.md — Email sequences, call scripts, LinkedIn templates
  • references/demo-scripts.md — Demo frameworks and objection handling
  • references/proposals-sow.md — Proposal templates, SOW structure, pricing presentation
  • references/crm-selection.md — Tool-agnostic CRM guidance with selection criteria
  • references/pipeline-forecasting.md — Pipeline stages, metrics, forecasting models

Workflow

Step 1: Diagnose Stage & Sales Motion

Ask: "Where are you in your sales journey?"

| Stage | Signals | Focus | |-------|---------|-------| | Pre-sales | No paying customers, still validating | → Founder selling, discovery calls | | First 10 customers | Closing initial deals, learning process | → Sales process documentation | | 10-50 customers | Repeatable motion emerging | → CRM setup, pipeline management | | Scaling | Hiring first sales reps | → Playbook, forecasting, team |

Sales Motion Selection:

| Your Product | ACV Range | Recommended Motion | |--------------|-----------|-------------------| | Self-serve tool | 14 days)

  1. Validate close dates and amounts
  2. Update forecast (commit, best case, pipeline)
  3. Identify gaps and plan outreach

Decision Checkpoints

When to Hire First Sales Rep

Ready to hire when:

  • [ ] Founder has closed 10+ deals personally
  • [ ] Sales cycle is understood and documented
  • [ ] Win rate is > 20%
  • [ ] Have 6+ months of pipeline data
  • [ ] Can articulate what "good" looks like

First hire profile:

  • Ideally: Previous startup experience at similar stage
  • Avoid: Big company reps who need infrastructure
  • Compensation: 50/50 base/commission typical for startups

When to Add Sales Methodology

Start simple, add complexity as needed:

| Your Situation | Start With | |----------------|------------| | $50K ACV, multiple stakeholders | MEDDIC | | Selling change, not just software | Challenger principles |

Deliverables

1. Sales Process Document

  • Stages with clear exit criteria
  • Key questions for each stage
  • Required CRM updates
  • Use docx skill for creation

2. Cold Outreach Sequence

  • 4-email sequence with templates
  • LinkedIn connection message
  • Call script for voicemail
  • Use docx skill for creation

3. Demo Script

  • Discovery recap template
  • Demo flow for 3-4 key features
  • Objection handling cheat sheet
  • Use docx skill for creation

4. Proposal Template

  • Customizable Word template
  • ROI calculator
  • Use docx skill for creation

5. Pipeline Tracker

  • Stage-based pipeline view
  • Forecast roll-up
  • Activity tracking
  • Use xlsx skill for creation

6. CRM Recommendation

  • Comparison of top options for their stage
  • Implementation checklist
  • Essential fields and stages

Common Sales Mistakes

Process Mistakes:

  1. No defined stages — Deals get stuck, no visibility
  2. Skipping discovery — Demo without understanding pain = low close rate
  3. Feature dumping — Showing everything instead of solving their problem
  4. No mutual action plan — Hoping vs. driving deals forward
  5. Single-threaded — Only one contact = deal dies when they leave

Outreach Mistakes:

  1. Too much "I/we" — Make it about them, not you
  2. No personalization — Generic = ignored
  3. Asking for too much — "30 min call" vs. "quick question"
  4. Giving up too early — Most responses come after 3+ touches
  5. No follow-up system — Leads fall through cracks

Forecasting Mistakes:

  1. Hoping vs. knowing — Commit only what you can defend
  2. Outdated close dates — Update weekly or forecast is fiction
  3. Ignoring stuck deals — If no activity for 2 weeks, it's not real
  4. Single best-case scenario — Always have commit/best case/pipeline

Integration with Other Skills

  • Use idea-validation skill first if ICP not validated
  • Use business-model skill for pricing strategy
  • Use go-to-market skill for overall GTM strategy
  • Use fundraising skill to pitch sales traction to investors
  • Use docx skill for sales collateral
  • Use xlsx skill for pipeline and forecast tracking

Adapted from Linas Beliūnas's The One-Person Unicorn founder skill set.

Source & license

This open-source skill is cataloged on AgentStack and links to its original source — we do not rehost the code.

Install and usage instructions live in the source repository linked above.

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Versions

  • v0.1.0 Imported from the upstream source.