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  1. Users
  2. Helena Dubois
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Helena Dubois

helena.dubois@northline.aiStaff Engineer · Engineering
Tools used
CursorCopilot
AI spend (3 mo)$4,064.04
Savings$1,854.99

Helena's Token Efficiency Over Time

Score out of 100 · recovered after a dip

Helena's Monthly AI Spend

Spend down 8% while output volume rose

What improved Helena's usage

  • Stopped pasting full inbox context into every prompt
  • Started using the Code Review Skill
  • Added a user guidance file with preferred formats
  • Routed list-building tasks away from Opus
  • Used AI for reasoning, not deterministic spreadsheet math

Helena's top workflow

Test Generation

Unit test stubs, edge-case lists, and flaky test triage

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$1,36926 convos

Helena vs Engineering

Efficiency vs. cost compared with teammates
Efficiency vs. Cost
EfficiencyToken Spend

Helena's user.md

user.mdVery Efficient
14 lines · under the ~40-line always-on budget
# user.md

You're an experienced Staff Engineer working across product and platform surfaces. You set technical direction, unblock hard problems, and keep standards high without slowing delivery.

## Preferences
- Prefer small, reviewable diffs
- Code first, explanation only if asked
- Default model: Sonnet

## Project
- Package manager: pnpm
- Test: pnpm test · Lint before commit

## Do not
- Paste the full repo by default
- Rewrite unrelated files

## Load on demand
- @review.md · @debug.md · @tests.md