Grades are a hygiene check, not a security guarantee.

Codex, Plugin

Canvas Lms Codex Plugin

Student-first Canvas LMS workflows for Codex, packaged as a local plugin with a bundled MCP server.

Compatibility: Not stated.

Grade B

Minor issues only, no Medium or High. Worth a quick look at the findings below before installing.

Graded by PlugVetRubric v2

Not a guarantee. A hygiene check of the source at the commit shown, not a security audit.

Rescanned at commit 74e65561a99a, unchanged since the check below.

NETWORK_NO_FIXED_HOST SECRETS_PATH_DOTENV INSTALL_DOCUMENTED_INSTALLER SECRETS_ENV_READ

Why this grade

  • NETWORK_NO_FIXED_HOST Low

    Makes a network call whose host is not written as a fixed address.

    scripts/core/http.mjs, line 249 response = await fetch(url, {

  • SECRETS_PATH_DOTENV Low

    Mentions a .env file.

    .gitignore, line 2 .env

  • INSTALL_DOCUMENTED_INSTALLER Note

    Documentation shows an installer that pipes a download into a shell.

    README.md, line 49 curl -fsSL https://raw.githubusercontent.com/hunterschep/canvas-lms-codex-plugin/main/install.sh | bash

  • SECRETS_ENV_READ Note

    Reads an environment variable whose name contains KEY, SECRET, TOKEN, PASSWORD or CREDENTIAL.

    scripts/canvas-mcp-server.mjs, line 330 hasCanvasAccessToken: Boolean(process.env.CANVAS_ACCESS_TOKEN || process.env.CANVAS_API_TOKEN),

Any High, or two or more Medium findings, give D. One Medium gives C. Low findings or a security Note give B. Each code names a finding behind the letter.

Grades are a hygiene check of the source at the commit shown, on the date checked, not a security audit or a guarantee. The free directory grades are automated. Before release, a PlugVet engineer reviews every paid report and any grade we hold back, including all F grades, against the source code and the evidence we quote.

What was checked

Plain notes from the hygiene checks.

  • Permissions

    Pass

    No shell or command execution found, and no extra permission was declared.

  • Install and update

    Note

    README documents an installer that pipes a download into a shell.

    INSTALL_DOCUMENTED_INSTALLER

    README.md, line 49

    curl -fsSL https://raw.githubusercontent.com/hunterschep/canvas-lms-codex-plugin/main/install.sh | bash

    README.md, line 61

    curl -fsSL https://raw.githubusercontent.com/hunterschep/canvas-lms-codex-plugin/main/install.sh | bash -s -- --repo-root "$PWD"

  • Network

    Concern

    can reach a host that is not written as a fixed address.

    NETWORK_NO_FIXED_HOST

    scripts/core/http.mjs, line 249

    response = await fetch(url, {

  • Secrets

    Concern

    reads a credential or environment file.

    SECRETS_ENV_READ SECRETS_PATH_DOTENV

    scripts/canvas-mcp-server.mjs, line 330

    hasCanvasAccessToken: Boolean(process.env.CANVAS_ACCESS_TOKEN || process.env.CANVAS_API_TOKEN),

    scripts/core/http.mjs, line 26

    const accessToken = process.env.CANVAS_ACCESS_TOKEN?.trim() || process.env.CANVAS_API_TOKEN?.trim();

    .gitignore, line 2

    .env

    Show more

    .gitignore, line 1

    .DS_Store

  • Agent instructions

    Pass

    No instruction to ignore earlier instructions or to hide a step.

  • Obfuscation

    Pass

    No encoded or minified payload found.

  • Licence

    Pass

    A licence file is present (LICENSE).

  • Maintainer activity

    Pass

    The latest commit is within the last 365 days.

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Note

Hygiene check of commit 74e65561a99a. README documents an installer that pipes a download into a shell. can reach a host that is not written as a fixed address. reads a credential or environment file.

Date and source

Date checked:

View source

github.com

Commit graded: 74e65561a99aa36072150ee9d31690b14bad9853

This link goes to the original host. PlugVet does not host or check what you download from there, and installing it is your own decision and risk.

Read how this letter is chosen