create-announcement

create-announcement is a skill for Claude Code, Codex from Canvas-LMS-MCP/canvas-teacher-mcp. It costs 116 tokens per session (1,728 once invoked), scanned A, original, MIT.

A reusable procedure for writing a weekly Canvas announcement, where Canvas is a learning-management system used to organize courses, assignments, and grades.

In plain words
What is it for?
Use it to summarize what students should read, watch, do, and submit, including graded work and due dates.
Why use it?
It removes the need to manually inspect course materials and assemble a student-facing weekly message. It also keeps course details and deadlines tied to the selected course configuration.

Skill for Claude CodeCodex

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

Good fit Use it to summarize what students should read, watch, do, and submit, including graded work and due dates.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/canvas-lms-mcp/canvas-teacher-mcp/create-announcement
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.

Any agent
npx skills add Canvas-LMS-MCP/canvas-teacher-mcp --skill create-announcement
Clone the repo
git clone --depth 1 https://github.com/Canvas-LMS-MCP/canvas-teacher-mcp

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 create-announcement

README.md
[![agentmods](https://agentmods.dev/badge/skills/canvas-lms-mcp/canvas-teacher-mcp/create-announcement/github.svg)](https://agentmods.dev/skills/canvas-lms-mcp/canvas-teacher-mcp/create-announcement)
Your own site
<a href="https://agentmods.dev/skills/canvas-lms-mcp/canvas-teacher-mcp/create-announcement"><img src="https://agentmods.dev/badge/skills/canvas-lms-mcp/canvas-teacher-mcp/create-announcement/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for create-announcement

Your own site · 80×15
<a href="https://agentmods.dev/skills/canvas-lms-mcp/canvas-teacher-mcp/create-announcement"><img src="https://agentmods.dev/badge/skills/canvas-lms-mcp/canvas-teacher-mcp/create-announcement.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 116 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,728 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. A grade says what 26 rules found in the file — not that it is safe.
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 $0.00116 $0.01728
Opus 5 $0.00058 $0.00864
Sonnet 5 $0.00023 $0.00346
Haiku 4.5 $0.00012 $0.00173

Measured 11d ago against content hash 0bc8472bbda0, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

create-announcement 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 11d ago.

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.

hand-roll `POST /discussion_topics` / raw `urllib` / a Bearer token in a scratchpad script — that is a
src/canvas_teacher_mcp/_data/skills/create-announcement/SKILL.md · 91 lines

How it starts

The opening of the file, as written. The whole thing — 91 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Weekly Canvas Announcement (GLOBAL, config-driven)

Generate the weekly Canvas announcement for a module — a friendly, beginner-facing "here's your week" note. The email sibling of the agenda-wrapup skill: all three (Agenda, Wrap-up, Announcement) are derived from the same module read, but this one sends email to every student, so it lives in its own skill and is invoked deliberately — never automatically bundled with the pages.

Course coordinates are NEVER hardcoded. Read them from course_config.load(<course_slug>): course_id, school, canvas_base_url, canvas_token_env. e.g. csci19a → school lpc, course 58774, token LPC_CANVAS_TOKEN; cs110 → school avc, course 69095. The user names the course_slug (or you infer it from the working directory); everything else comes from the config.

Step 1 — read the module ONCE (via canvas_rest)

Let base = cfg["canvas_base_url"], cid = cfg["course_id"], tok = canvas_token_auth.get_token(cfg["canvas_token_env"], base).

  1. Find the module: cr.list_modules(base, tok, cid) → match the week ([Week N], Week N), or the user gives the module id. A week can span multiple modules → collect all.
  2. Items: cr.get(base, tok, f"/courses/{cid}/modules/{mid}/items").
  3. Categorize by item type + SubHeader labels: Readings/Slides, Videos, Pages/guides, Assignments, Quizzes, Exams.
  4. Due dates: Assignment → cr.fetch_assignment(base, tok, cid, content_id).due_at; Quiz → cr.fetch_quiz(...).due_at. ALWAYS cr.to_localtime(due) → PDT/PST, never raw UTC. Null → "No due date set".

Step 2 — write the announcement (these parts, in order)

1. Friendly overview — "your week at a glance"

A kind, plain-English guide. Cover:

  • a) Everything this week, summarized — what to read, what to watch, what to do, what to submit — all in one short scannable list.
  • b) What you'll learn / the goal — what you learn this week, and what you'll be able to do by the end of the week (concrete outcome, motivating).
  • c) Skill check — a short "can you do this now?" check at the end: if you can, that's the skill you gained this week. (Frame success as a checkpoint they can self-verify.)

Read the full file on GitHub · 91 lines

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. 11d ago First seen · 91 lines · 116 tokens per session scan A 0bc8472bbda0

Subscribe to this mod's changes

create-announcement is a skill published in the GitHub repository Canvas-LMS-MCP/canvas-teacher-mcp (1 stars, last pushed 27d ago), licensed MIT. It adds 116 tokens to every session and 1,728 once invoked, about $0.0006 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 2026-08-31.

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