A personal impact report skill for Microsoft Copilot Cowork — quantifies your leverage as a speed multiplier and professional-services equivalent value.
"What Cowork Did for Me" is a skill for Copilot Cowork that generates a polished, Microsoft-branded single-file HTML report from your own Cowork session history stored in OneDrive. It answers the question: "How much time and value has Cowork given me?"
The skill:
- Harvests your Cowork session artifacts (inputs analyzed & outputs produced) from OneDrive
- Classifies work into 8 research-anchored task categories
- Applies an artifact-scaled two-clock model to compute your speed multiplier
- Renders a self-contained, interactive HTML report you can share or print to PDF
Inspired by microsoft/What-I-Did-Copilot, adapted for Copilot Cowork.
The report leads with a speed multiplier (how much faster Cowork made you vs. working unassisted) and a professional-services equivalent (what that expert time would cost at your hourly rate).
See where your time went across 8 task categories, plus a breakdown of what you fed Cowork vs. what it produced.
- Hero — speed multiplier (conservative/typical/optimistic) + professional-services value
- KPIs — sessions, tasks, artifacts, active days, expert-equiv hours, hands-on hours
- By category — research-anchored time-savings bars
- Analyzed → Produced — sources in vs. deliverables out, with ingest/synthesize/author split
- Skills augmented — professional roles Cowork covered for you
- Goals & leverage — per-session goal with hours, value, and speed multiplier
- Activity heatmap — day × hour collaboration pattern
- Methodology & glossary — every band traceable, with clickable research sources
- Live hourly-rate control — recalculates all dollar figures; speed multiplier is rate-independent
- Download PDF button
Let Cowork install it for you.
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Download the
cowork-roi-report-skill.zipfrom the latest release -
Open Copilot Cowork
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Attach the zip file to the chat and send this prompt:
Install the attached Cowork ROI Report skill into my personal skills.
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Cowork will unpack and place the skill in the right location for you
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Done! In the same session (or a new one), ask: "What did Cowork do for me?"
Once installed, trigger the skill by asking Cowork:
- "What did Cowork do for me?"
- "My Cowork ROI report"
- "Cowork impact report"
- "How much time has Copilot Cowork saved me this month?"
The skill will:
- Ask which period to measure (7, 15, or 30 days) and whether to automate
- Harvest your Cowork session files from OneDrive
- Classify each session using the deterministic extension-based classifier
- Compute the two-clock model (expert clock vs. assisted clock)
- Render a beautiful HTML report
- Optionally automate on a recurring schedule with email digest
The skill uses a two-clock model anchored in published research:
| Clock | What it measures |
|---|---|
| Expert (unassisted) | How long a professional would take without AI — research-anchored category bands + reading time per source + authoring time per deliverable |
| Assisted (your time) | Modeled hands-on effort: 8 min + 2 min × (inputs + outputs), floor 4 min |
speed_multiplier = Σ expert_min / Σ assisted_min (rate-independent)
professional_services_value = (Σ expert_min / 60) × hourly_rate
| Category | Low | Typical | High |
|---|---|---|---|
| Analysis & Research | 30 | 71 | 92 |
| Document & content creation | 12 | 24 | 42 |
| Email workflows | 3 | 7 | 12 |
| Meeting workflows | 12 | 31 | 45 |
| Communication workflows | 2 | 4 | 6 |
| Specialized workflows | 10 | 25 | 40 |
| Write or debug code | 30 | 56 | 96 |
| General assistance / Other | 2 | 5 | 8 |
Sources: Stanford-WB, Microsoft Research, NBER, Forrester — all clickable in the report's Glossary.
cowork-roi-report-skill/
├── SKILL.md # Skill definition + workflow (loaded by Cowork)
├── README.md # Technical documentation
├── CHANGELOG-v5.md # What changed in v5 and why
├── scripts/
│ ├── mine_session.py # Mines the live session transcript
│ ├── classify.py # Deterministic ext→category classifier
│ ├── compute.py # Applies the methodology → payload JSON
│ └── build_report.py # Renders the self-contained HTML report
└── examples/
├── sample_sessions.json # Synthetic input (safe to share)
└── sample-report.html # Rendered from the synthetic input
No third-party dependencies — standard-library Python 3 only.
- The assisted clock is modeled, not measured — OneDrive records artifacts, not keystroke time. Treat the multiplier as directional, not a stopwatch.
- Categories with no saved artifacts in the window report zero — keeping totals a conservative floor.
- Counting stays conservative: ~2 run tasks per session; supporting files folded into the primary task.
MIT
- Inspired by microsoft/What-I-Did-Copilot
- Powered by Microsoft Copilot Cowork