canvas

canvas is a skill for Claude Code, Codex from NousResearch/hermes-agent. It costs 12 tokens per session (836 once invoked), scanned A, original, MIT.

A read-only connection to Canvas, a learning-management system used by schools and universities, through its API.

In plain words
What is it for?
It helps list active or past courses and retrieve assignments, including sorting them by due date.
Why use it?
It lets an agent retrieve course information without opening and checking each Canvas page manually.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

About the project

Hermes Agent is an AI assistant that learns from its use by creating and improving skills, retaining knowledge, searching past conversations, and adapting to its users. It is for people who want to run an agent through a terminal or messaging platforms while connecting it to different AI models and scheduled tasks.

NousResearch/hermes-agent · 241,505 stars · on GitHub · hermes-agent.nousresearch.com

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add skills/nousresearch/hermes-agent/canvas
Any agent
npx skills add NousResearch/hermes-agent --skill canvas
Clone the repo
git clone --depth 1 https://github.com/NousResearch/hermes-agent

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for canvas

README.md
[![agentmods](https://agentmods.dev/badge/skills/nousresearch/hermes-agent/canvas.svg)](https://agentmods.dev/skills/nousresearch/hermes-agent/canvas)
Your own site
<a href="https://agentmods.dev/skills/nousresearch/hermes-agent/canvas"><img src="https://agentmods.dev/badge/skills/nousresearch/hermes-agent/canvas.svg" alt="Measured on agentmods" height="20"></a>
Per session 12 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 836 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00012 $0.00836
Opus 5 $0.00006 $0.00418
Sonnet 5 $0.00002 $0.00167
Haiku 4.5 $0.00001 $0.00084

Measured 2d ago against content hash e2335a4e635a, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-05, from the pricing page.

Security

Grade A, and why

canvas scanned grade A with 1 finding against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2d ago.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/canvas_api.py), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

## API Reference (curl)
Origin

Copies of this mod

8 near-identical copies found in the catalogue:

  • canvas — 100% identical, 0 lines differ
  • canvas — 100% identical, 0 lines differ
  • canvas — 100% identical, 0 lines differ
  • canvas — 92% identical, 2 lines differ
  • canvas — 92% identical, 2 lines differ
  • canvas — 86% identical, 5 lines differ
  • canvas — 86% identical, 5 lines differ
  • canvas — 83% identical, 11 lines differ
optional-skills/productivity/canvas/SKILL.md · 99 lines

How it starts

The opening of the file, as written. The whole thing — 99 lines — stays where its author put it; the contents beside it link to each section on GitHub.

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

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:

[{"id": 12345, "name": "Intro to CS", "course_code": "CS101", "workflow_state": "available", "start_at": "...", "end_at": "..."}]

list_assignments returns:

[{"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)

# 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"

Read the full file on GitHub · 99 lines

Files

What ships with it

1 file beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 2d ago First seen · 99 lines · 12 tokens per session scan A e2335a4e635a

Subscribe to this mod's changes

canvas is a skill published in the GitHub repository NousResearch/hermes-agent (241,505 stars, last pushed today), licensed MIT. It adds 12 tokens to every session and 836 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-09-03.

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