Gradescope Server

An MCP (Model Context Protocol) server for Gradescope that exposes course management, grading, regrade review, statistics, and AI-assisted grading workflows to MCP clients.

The server is designed for instructors and TAs who want to use AI agents with real Gradescope data while keeping write operations gated behind explicit confirmation.

This repository also includes a reusable local skill at skills/gradescope-assisted-grading/SKILL.md for human-approved grading workflows.

Current Status

• 34 MCP tools
• 3 MCP resources
• 7 MCP prompts
• 30 automated tests
• Python 3.10+
• Package manager: uv

What The Project Provides

Read-oriented workflows

• Course discovery and assignment listing
• Assignment outline parsing for online and scanned-PDF assignments
• Roster inspection with a custom HTML parser
• Submission listing for multiple assignment types
• Grading progress, rubric context, answer groups, regrades, and statistics
• Workflow helpers that cache grading artifacts and answer-key snapshots to /tmp/gradescope-mcp

Write-oriented workflows

• Uploading submissions
• Setting student extensions
• Modifying assignment dates
• Renaming assignments
• Applying grades
• Creating, updating, and deleting rubric items
• Batch grading answer groups

All write-capable tools are preview-first and require confirm_write=True before any mutation is executed.

Tool Inventory

Core

Tool	Description	Access
tool_list_courses	List all courses grouped by role	All
tool_get_assignments	List assignments for a course	All
tool_get_assignment_details	Get one assignment's details	All
tool_upload_submission	Upload files to an assignment	All

Instructor / TA Management

Tool	Description
tool_get_course_roster	Full roster grouped by role
tool_get_extensions	View assignment extensions
tool_set_extension	Add or update one student's extension
tool_modify_assignment_dates	Change release / due / late-due dates
tool_rename_assignment	Rename an assignment
tool_get_assignment_submissions	List assignment submissions
tool_get_student_submission	Read one student's submission content
tool_get_assignment_graders	View graders for a question

Grading Read

Tool	Description
tool_get_assignment_outline	Question hierarchy, IDs, weights, prompt text
tool_export_assignment_scores	Assignment score export and summary
tool_get_grading_progress	Per-question grading dashboard
tool_get_submission_grading_context	Full grading context for a question submission
tool_get_question_rubric	Rubric inspection without a submission ID
tool_list_question_submissions	List Question Submission IDs, filterable by grade state
tool_get_next_ungraded	Navigate to the next ungraded question submission

Grading Write

Tool	Description
tool_apply_grade	Apply rubric items, comments, and point adjustments
tool_create_rubric_item	Create a rubric item
tool_update_rubric_item	Update a rubric item
tool_delete_rubric_item	Delete a rubric item

AI-Assisted / Workflow Helpers

Tool	Description
tool_prepare_grading_artifact	Save a question-specific grading artifact to /tmp/gradescope-mcp
tool_assess_submission_readiness	Estimate whether auto-grading is safe enough to attempt
tool_cache_relevant_pages	Download crop and nearby pages to /tmp/gradescope-mcp
tool_prepare_answer_key	Save assignment-wide answer-key notes to /tmp/gradescope-mcp
tool_smart_read_submission	Return a crop-first reading plan

Answer Groups

Tool	Description
tool_get_answer_groups	List AI-clustered answer groups
tool_get_answer_group_detail	Inspect one answer group
tool_grade_answer_group	Batch-grade one answer group

Regrades

Tool	Description
tool_get_regrade_requests	List regrade requests
tool_get_regrade_detail	Inspect one regrade request

Statistics

Tool	Description
tool_get_assignment_statistics	Assignment-level and per-question statistics

Resources

URI	Description
gradescope://courses	Current course list
gradescope://courses/{course_id}/assignments	Assignment list for a course
gradescope://courses/{course_id}/roster	Roster for a course

Prompts

Prompt	Description
summarize_course_progress	Summarize assignment status in a course
manage_extensions_workflow	Guide extension-management work
check_submission_stats	Summarize assignment submission status
generate_rubric_from_outline	Draft a rubric from assignment structure
grade_submission_with_rubric	Walk through grading one student's work
review_regrade_requests	Review pending regrade requests
auto_grade_question	Run a confidence-gated grading workflow for one question

Architecture

Entry points

• src/gradescope_mcp/__main__.py: loads .env, configures logging, runs the FastMCP server
• src/gradescope_mcp/server.py: registers all tools, resources, and prompts

Authentication

• src/gradescope_mcp/auth.py: maintains a singleton GSConnection
• Credentials come from GRADESCOPE_EMAIL and GRADESCOPE_PASSWORD
• .env is loaded automatically when starting with python -m gradescope_mcp

Tool modules

• tools/courses.py: course listing and roster parsing
• tools/assignments.py: assignment listing and assignment write operations
• tools/submissions.py: uploads, submission listing, grader discovery
• tools/extensions.py: extension reads and writes
• tools/grading.py: outline parsing, score exports, grading progress
• tools/grading_ops.py: grading context, writes, rubric CRUD, navigation
• tools/grading_workflow.py: /tmp/gradescope-mcp artifacts, answer keys, readiness, page caching, smart reading
• tools/answer_groups.py: AI-assisted answer-group inspection and batch writes
• tools/regrades.py: regrade listing and detail inspection
• tools/statistics.py: assignment statistics
• tools/safety.py: preview-first confirmation helpers for mutations

Important Behavior And Constraints

Write safety

• Mutating tools return a preview when confirm_write=False
• The actual change only happens with confirm_write=True
• Rubric edits and deletions can cascade to existing grades
• tool_grade_answer_group can affect many submissions at once and needs extra care

Submission IDs

• tool_get_assignment_submissions returns assignment-level Global Submission IDs
• Grading tools require Question Submission IDs
• Use tool_list_question_submissions, tool_get_next_ungraded, or grading context tools to get the correct IDs

Scoring direction

• Gradescope questions may be positive or negative scoring
• Rubric weights are stored as positive numbers in both modes
• The scoring mode determines whether a checked rubric item adds or deducts points

Scanned / handwritten assignments

• Structured reference answers are often unavailable
• This is expected, not necessarily a parsing failure
• The workflow helpers are built to use crop regions, full pages, adjacent pages, rubric text, and user-provided reference notes

Quick Start

1. Prerequisites

• Python 3.10+
• uv

2. Install

git clone https://github.com/Yuanpeng-Li/gradescope-mcp.git
cd gradescope-mcp
cp .env.example .env

Then edit .env with your Gradescope credentials.

3. Run locally

uv run python -m gradescope_mcp

4. Configure an MCP client

Example client configuration:

{
  "mcpServers": {
    "gradescope": {
      "command": "uv",
      "args": [
        "run",
        "--directory",
        "/path/to/gradescope-mcp",
        "python",
        "-m",
        "gradescope_mcp"
      ],
      "env": {
        "GRADESCOPE_EMAIL": "[email protected]",
        "GRADESCOPE_PASSWORD": "your_password"
      }
    }
  }
}

5. Debug with MCP Inspector

npx @modelcontextprotocol/inspector uv run python -m gradescope_mcp

6. Run tests

uv run pytest -q

Assisted Grading Skill

The repository includes one project-local skill:

• gradescope-assisted-grading

It is intended for:

• preview-first grading
• rubric review before mutation
• scanned exam grading
• answer-group triage
• explicit human approval before any grade write

Install the skill locally

mkdir -p /tmp/gradescope-mcp/skills
ln -s "$(pwd)/skills/gradescope-assisted-grading" /tmp/gradescope-mcp/skills/gradescope-assisted-grading

If you prefer copying:

mkdir -p /tmp/gradescope-mcp/skills
cp -R skills/gradescope-assisted-grading /tmp/gradescope-mcp/skills/

Verify installation

ls /tmp/gradescope-mcp/skills/gradescope-assisted-grading
cat /tmp/gradescope-mcp/skills/gradescope-assisted-grading/SKILL.md

Invoke it from a client with:

• Use the gradescope-assisted-grading skill
• $gradescope-assisted-grading

Project Structure

gradescope-mcp/
├── .env.example
├── AGENT.md
├── DEVLOG.md
├── OPERATIONS_LOGS/
│   └── RECORDS.md
├── README.md
├── pyproject.toml
├── skills/
│   └── gradescope-assisted-grading/
│       └── SKILL.md
├── src/
│   └── gradescope_mcp/
│       ├── __init__.py
│       ├── __main__.py
│       ├── auth.py
│       ├── server.py
│       └── tools/
│           ├── __init__.py
│           ├── answer_groups.py
│           ├── assignments.py
│           ├── courses.py
│           ├── extensions.py
│           ├── grading.py
│           ├── grading_ops.py
│           ├── grading_workflow.py
│           ├── regrades.py
│           ├── safety.py
│           ├── statistics.py
│           └── submissions.py
└── tests/
    ├── test_answer_groups.py
    ├── test_assignments_and_grading_ops.py
    ├── test_extensions_and_answer_key.py
    ├── test_grading_workflow.py
    └── test_write_safety.py

Development Notes

• AGENT.md summarizes the current architecture and maintenance expectations
• DEVLOG.md records the implementation history
• OPERATIONS_LOGS/RECORDS.md is the mutation log template for real-account testing

Known Caveats

1. Gradescope behavior differs across assignment types; several tools rely on HTML parsing or reverse-engineered endpoints.
2. Roster parsing uses a custom parser because the upstream library parser is unreliable when sections are present.
3. Some assignment types do not support the extensions API even for staff users.
4. Scanned assignments usually do not provide a structured answer key.
5. Question grading requires Question Submission IDs, not assignment-level Global Submission IDs.