Hermes-agent

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+---
+name: canvas
+description: Canvas LMS integration — fetch enrolled courses and assignments using API token authentication.
+version: 1.0.0
+author: community
+license: MIT
+platforms: [linux, macos, windows]
+prerequisites:
+  env_vars: [CANVAS_API_TOKEN, CANVAS_BASE_URL]
+metadata:
+  hermes:
+    tags: [Canvas, LMS, Education, Courses, Assignments]
+---
+
+# Canvas LMS — Course & Assignment Access
+
+Read-only access to Canvas LMS for listing courses and assignments.
+
+## Scripts
+
+- `scripts/canvas_api.py` — Python CLI for Canvas API calls
+
+## Setup
+
+1. Log in to your Canvas instance in a browser
+2. Go to **Account → Settings** (click your profile icon, then Settings)
+3. Scroll to **Approved Integrations** and click **+ New Access Token**
+4. Name the token (e.g., "Hermes Agent"), set an optional expiry, and click **Generate Token**
+5. Copy the token and add to `${HERMES_HOME:-~/.hermes}/.env`:
+
+```
+CANVAS_API_TOKEN=your_token_here
+CANVAS_BASE_URL=https://yourschool.instructure.com
+```
+
+The base URL is whatever appears in your browser when you're logged into Canvas (no trailing slash).
+
+## Usage
+
+```bash
+CANVAS="python $HERMES_HOME/skills/productivity/canvas/scripts/canvas_api.py"
+
+# List all active courses
+$CANVAS list_courses --enrollment-state active
+
+# List all courses (any state)
+$CANVAS list_courses
+
+# List assignments for a specific course
+$CANVAS list_assignments 12345
+
+# List assignments ordered by due date
+$CANVAS list_assignments 12345 --order-by due_at
+```
+
+## Output Format
+
+**list_courses** returns:
+```json
+[{"id": 12345, "name": "Intro to CS", "course_code": "CS101", "workflow_state": "available", "start_at": "...", "end_at": "..."}]
+```
+
+**list_assignments** returns:
+```json
+[{"id": 67890, "name": "Homework 1", "due_at": "2025-02-15T23:59:00Z", "points_possible": 100, "submission_types": ["online_upload"], "html_url": "...", "description": "...", "course_id": 12345}]
+```
+
+Note: Assignment descriptions are truncated to 500 characters. The `html_url` field links to the full assignment page in Canvas.
+
+## API Reference (curl)
+
+```bash
+# List courses
+curl -s -H "Authorization: Bearer $CANVAS_API_TOKEN" \
+  "$CANVAS_BASE_URL/api/v1/courses?enrollment_state=active&per_page=10"
+
+# List assignments for a course
+curl -s -H "Authorization: Bearer $CANVAS_API_TOKEN" \
+  "$CANVAS_BASE_URL/api/v1/courses/COURSE_ID/assignments?per_page=10&order_by=due_at"
+```
+
+Canvas uses `Link` headers for pagination. The Python script handles pagination automatically.
+
+## Rules
+
+- This skill is **read-only** — it only fetches data, never modifies courses or assignments
+- On first use, verify auth by running `$CANVAS list_courses` — if it fails with 401, guide the user through setup
+- Canvas rate-limits to ~700 requests per 10 minutes; check `X-Rate-Limit-Remaining` header if hitting limits
+
+## Troubleshooting
+
+| Problem | Fix |
+|---------|-----|
+| 401 Unauthorized | Token invalid or expired — regenerate in Canvas Settings |
+| 403 Forbidden | Token lacks permission for this course |
+| Empty course list | Try `--enrollment-state active` or omit the flag to see all states |
+| Wrong institution | Verify `CANVAS_BASE_URL` matches the URL in your browser |
+| Timeout errors | Check network connectivity to your Canvas instance |