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Report Card Comment Builder
Turn a class marks sheet into balanced draft report card comments matched to each mark band, with strengths and next steps. Free, no AI, offline.
Free Use it here · Ready in about 1 minFormat: Claude skill#Study & learning#Claude skill packs
- You getClaude skill + setup guide
- DeliveryInstant download
- Tested24/24 checks pass
- PriceFree, no card
Free
FreeReadyUpgrade to Pro: Report Card Comment Builder Pro · $19
Free direct download from this site: no sign-up, no email. Version 1.0.0. SHA-256 a7eaaf9cd025b78c22b0e4ff4ba056d768e860d723d3d49be194cc449a82ca2f
Use it here
Drop your file and get the result in seconds. It runs in your browser, so your files never leave your device. Free: a comment for every student in classes up to 40.
See it work
How Report Card Comment Builder moves through a job, step by step. The run below is an example output, written from what this agent does. It isn't a live run on your data.
Sample input
Marks sheet CSV or XLSX with one Score column, up to 40 students
Example output Illustration
You get: - comments.csv with student, band, length and comment - comments.md to read through - skipped.csv
What you get
- Skill folders you add to Claude
- A Python script behind each skill, so numbers are calculated, not guessed
- Sample data and the test suite, so you can check it yourself
What it does
- comments.csv with student, band, length and comment
- comments.md to read through
- skipped.csv
Tools and costs you'll need
- Claude.ai with code execution, or Claude Code
- Python 3.10+ (standard library only)
- Marks sheet from your gradebook or a spreadsheet
Third-party costs are paid to those providers, not to us.
Test report
24/24 automated checks pass on Python 3.13.5 (standard library only); 13 cases incl. invalid input, duplicates and upstream failures. Not tested: languages other than English; XLSX marks sheets in the shipped tests (CSV only); grade scales other than 0-100 and A-F.
Known limits
- Not tested yet: languages other than English; XLSX marks sheets in the shipped tests (CSV only); grade scales other than 0-100 and A-F.
Live demo
- No live demo yet. We'll add one when it ships.
Demos use fictional businesses and data.
Pro Upgrade to Pro
Want the full version? Report Card Comment Builder Pro
Turn a class marks sheet into draft report card comments per subject and overall, matched to each mark band, in your own comment bank and character limit. $19 (coming soon).
What's AI here, and what isn't
This is an AI agent: it uses an AI model to read, sort, score or draft. It runs in your own accounts. Anything it would send outside your business waits for your approval unless you choose otherwise, and it never needs your passwords. Our AI disclosure.
Docs and help
Setup steps, fixes and version history. The help box answers from these docs; it is not a person.
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Get itQuestions about Report Card Comment Builder
What does Report Card Comment Builder do?
Turn a class marks sheet into balanced draft report card comments matched to each mark band, with strengths and next steps. Free, no AI, offline. comments.csv with student, band, length and comment. comments.md to read through. skipped.csv.
What do I need to run Report Card Comment Builder?
You need: Claude.ai with code execution, or Claude Code; Python 3.10+ (standard library only); Marks sheet from your gradebook or a spreadsheet. Third-party costs are paid to those providers, not to us.
Is Report Card Comment Builder tested?
24/24 automated checks pass on Python 3.13.5 (standard library only); 13 cases incl. invalid input, duplicates and upstream failures. Not tested: languages other than English; XLSX marks sheets in the shipped tests (CSV only); grade scales other than 0-100 and A-F.
How do I get Report Card Comment Builder?
It's free: press "Download free" to get the zip straight from this site, with no sign-up. The SHA-256 checksum on this page lets you check the file.
Does it use AI or send student data anywhere?
No. Comments are built from a fixed comment bank on your own computer or Claude session. No network calls; nothing is sent.
Can I use the comments as they are?
They are first drafts. Read and adjust each one: you know the student, the bank does not.
Which marks work?
Percentages (0-100) or letter grades A to F. Bands: 85+ excellent, 70-84 secure, 50-69 developing, below 50 support.
Is the free version limited?
One mark column, up to 40 students, the built-in bank and 600 characters. No account and no cap on runs.
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