Skip to main content

ROI Formulas

All formulas are in mcp-server/lib/constants.js. They are deterministic and documented.

Components​

Productivity Savings​

seats × avg_developer_cost_annual × velocity_improvement_pct × 0.6

The 0.6 is a utilization factor — not all dev time is code-writing.

Bug Remediation Savings​

seats × 12 × bug_escape_reduction_pct × avg_bug_remediation_cost

12 = industry benchmark for production bugs per developer per year.

Onboarding Savings​

new_hires × (avg_developer_cost_annual / 260) × (14 × onboarding_time_reduction_pct)
  • new_hires = seats × new_hire_rate_annual
  • 260 = working days per year
  • 14 = baseline onboarding days to first meaningful commit

Scenarios​

ScenarioVelocityBug Escape ReductionOnboarding Reduction
Conservative20%25%35%
Base32%38%50%
Aggressive45%45%55%

METR Caveat​

The METR 2025 RCT found experienced devs 19% slower with early-2025 AI tools. Rebuttal points:

  • Study tested pre-Agent Mode, pre-Subagent tools
  • No Cursor Rules or deployment strategy in the study
  • Salesforce/NVIDIA results are post-strategy, not just post-tool

Always acknowledge the METR study — it builds credibility. Then explain why deployment strategy changes outcomes.