made by Chris Meehan

Markback Settings

Get Started: Connect Your API Key

  1. Get an Anthropic API key at console.anthropic.com and paste it below (starts with sk-ant-).
  2. Click Validate Key to confirm it works.
  3. Open any submission in Canvas SpeedGrader and click Draft Score & Feedback to try it on one student.

Everything below this section is optional — sensible defaults apply until you tune them.

Not configured

Your key is encrypted at rest on this device and sent only to Anthropic when you grade — never to any other server. If this machine is shared, rotate the key when you're done. Treat a leaked key like a leaked credit card — revoke it on console.anthropic.com.

Teacher Profile

Feedback Style

Short Detailed
Moderate

Grading Behavior

Lenient Strict
Moderate

Off by default. When on, the AI marks passages worth a second look. These flags are observations for your judgment, not evidence — writing-style signals have many benign causes. Nothing is shown to students, and you decide what, if anything, a flag means.

Advanced Features

When enabled, PDF pages will be rendered as images and analyzed using Claude's vision capabilities. This is useful for submissions containing charts, diagrams, handwriting, or images that text extraction would miss. Uses more API credits than text-only analysis.

Fill the grade input with AI-suggested score after grading.

Automatically post feedback to submission comments.

Cost controls

Hard ceiling on Anthropic spend per day, enforced before every grade (single and batch). Resets at midnight. Blank = unlimited.

"Downgrade" keeps grading past the cap using a cheaper model. Downgraded grades are flagged and held for review (never auto-applied).

Clears the session tallies; today's cost-cap meter keeps counting and grading history is untouched.

Diagnostics

Verbose console output across the extension, including prompt cache hit/miss rates. Leave off unless you're troubleshooting.

Downloads a JSON file with your recent grading events, session totals, and settings (API key redacted). Helpful when filing a bug.

Response Options

Include additional structured information in AI responses.

Saved Profiles

Manage per-course and per-assignment settings profiles. Save profiles from the SpeedGrader panel.

No saved profiles yet.

Advanced Prompt Settings