Copilot Cowork Usage Tracker

usage-tracker is a Copilot Cowork skill for recording per-task credit consumption and reporting weekly and monthly usage. It classifies verified tasks as Light, Medium, or Heavy and keeps a cumulative running total in an Excel workbook.

Copilot Cowork does not currently provide this level of personal, per-task usage analysis out of the box. This skill fills that gap by giving users a simple history of their tasks, credit consumption, workload mix, and weekly and monthly trends.

Features

• Logs one workbook row per Cowork task.
• Derives task size from verified credits: Light <300, Medium 300-700, Heavy >700.
• Preserves the user's original prompt and current runtime model when available.
• Reports weekly and monthly totals, averages, trends, and task-size breakdowns.
• Records unknown credit values as pending instead of estimating them.
• Creates one personal tracker at Documents\Cowork\Cowork Credit Tracker.xlsx.

Install

1. Download SKILL.md from this repository.

2. Attach SKILL.md to a Copilot Cowork conversation.

3. Ask Cowork:

   Configure the attached usage-tracker skill for me.
   

4. After Cowork confirms that the skill is provisioned, ask it to remember the end-of-task reminder:

   Remember that after each successfully completed task, you should ask me to run
   the /cost command and provide the credits used for that task so the usage-tracker
   skill can log them in Cowork Credit Tracker.xlsx.
   

Cowork will use the attached instructions to provision the skill for the user. The saved memory makes the /cost reminder part of future successful task completions. No workbook or usage data is included in the downloaded skill file.

How to use

On its first run, the skill creates Cowork Credit Tracker.xlsx in the user's Documents\Cowork folder, with the Usage sheet and required columns ready for logging.

The skill cannot read the task's credit consumption automatically. After completing a Cowork task:

1. Run the /cost command in Cowork.

2. Copy the credit figure shown by /cost.

3. Invoke the skill and provide that exact value, for example:

   Log usage of credits 245.
   

The skill appends the task to the tracker, derives its Light, Medium, or Heavy size, and updates the running total. Users can then ask for summaries such as:

Show my Cowork usage for this week.
Summarize my July 2026 credit consumption.
How many Heavy tasks did I run last month?

Example Requests

Log this task with 245 credits.
Track this task's usage; /cost shows 820 credits.
Show my Cowork usage for this week.
Summarize my June 2026 credit consumption.
How many Heavy tasks did I run last month?

Workbook Screenshots

All task and credit data below is fictional. Model labels in the Usage preview match models recorded by the tracker.

Usage Tab

Fictional Excel-rendered Usage tab showing the complete A-J schema end to end. The header matches the canonical workbook; Light is green, Medium is amber, Heavy is red, and the Model column uses actual model names.

July Credits Tab

Fictional Excel-rendered July Credits tab, proportioned to the Usage preview, showing weekly consumption, the monthly total, and credits and prompt counts by task size.

Accessible Data Sample

Date	Time	Task Name	Task Type	Task Size	Credits Used	Running Total	User Prompt	Notes	Model
2026-07-02	09:10	Summarize workshop notes	one-off	Light	180	180	Summarize these fictional workshop notes.	Completed	Claude Opus 4.8
2026-07-03	14:25	Draft product launch plan	one-off	Medium	460	640	Draft a launch plan for a sample product.	Completed	Claude Sonnet 5 (1M context)
2026-07-06	11:40	Build market research report	one-off	Heavy	920	1560	Create a research report from sample data.	Completed	Claude Opus 4.8
2026-07-08	10:15	Prepare meeting recap	one-off	Light	240	1800	Prepare a recap from fictional meeting notes.	Completed	Claude Opus 4.8

Weekly Summary Sample

Period: July 5-11, 2026

Metric	Total	Light	Medium	Heavy
Tasks	3	1	1	1
Verified credits	1810	240	650	920

• Average: 603.3 credits per verified task
• Highest-credit task: Build market research report (920)
• Pending tasks: 0
• Previous-week change: Not enough prior data

Monthly Summary Sample

Week	Verified Credits
Week of Jun 28	640
Week of Jul 5	1810
Week of Jul 12	1710
Week of Jul 19	1300
Week of Jul 26	210
July total	5670

Repository Privacy

This repository intentionally contains no real tracker workbook, prompts, usage records, email addresses, usernames, tenant IDs, drive IDs, access tokens, or machine-specific paths. Sample values are fictional.

License

MIT