Agent skill

Buttondown

by Anil-matcha in Anil-matcha/awesome-muse-connectors

Read and write Buttondown: list subscribers and emails, add subscribers, draft emails.

Install Buttondown

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a claude-code

Project install by default; add -g for ~/.claude/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors buttondown --agent claude-code

Project scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .claude/skills && cp -r skills-src/connectors/buttondown .claude/skills/buttondown && rm -rf skills-src

Use ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.

Claude Code skills documentation · loads skills from .claude/skills/

Paste into Claude Code

Install the "buttondown" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/buttondown into .claude/skills/buttondown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "buttondown", then confirm the skill loads.

Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

$skill-installer

$skill-installer install https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/buttondown

Type this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a codex

Project install goes to .agents/skills/; add -g for ~/.codex/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors buttondown --agent codex

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .agents/skills && cp -r skills-src/connectors/buttondown .agents/skills/buttondown && rm -rf skills-src

Use ~/.agents/skills/ instead of .agents/skills for a personal install.

Codex skills documentation · loads skills from .agents/skills/

Paste into Codex

Install the "buttondown" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/buttondown into .agents/skills/buttondown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "buttondown", then confirm the skill loads.

Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a cursor

Project install goes to .agents/skills/; add -g for ~/.cursor/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors buttondown --agent cursor

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/connectors/buttondown .cursor/skills/buttondown && rm -rf skills-src

Use ~/.cursor/skills/ instead of .cursor/skills for a personal install.

Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/

Paste into Cursor

Install the "buttondown" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/buttondown into .cursor/skills/buttondown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "buttondown", then confirm the skill loads.

Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

gemini skills install

$ gemini skills install https://github.com/Anil-matcha/awesome-muse-connectors.git --path connectors/buttondown

--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a gemini-cli

Project install goes to .agents/skills/; add -g for ~/.gemini/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors buttondown --agent gemini-cli

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/connectors/buttondown .gemini/skills/buttondown && rm -rf skills-src

Use ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.

Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/

Paste into Gemini CLI

Install the "buttondown" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/buttondown into .gemini/skills/buttondown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "buttondown", then confirm the skill loads.

Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors buttondown

Installs for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a github-copilot

Project install goes to .agents/skills/; add -g for ~/.copilot/skills/.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .github/skills && cp -r skills-src/connectors/buttondown .github/skills/buttondown && rm -rf skills-src

Use ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.

GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/

Paste into GitHub Copilot

Install the "buttondown" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/buttondown into .github/skills/buttondown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "buttondown", then confirm the skill loads.

GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

skills CLI

$ npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a opencode

OpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.

GitHub CLI

$ gh skill install Anil-matcha/awesome-muse-connectors buttondown --agent opencode

Project scope by default (.agents/skills/); add --scope user for a personal install.

Manual copy

$ git clone --depth 1 https://github.com/Anil-matcha/awesome-muse-connectors.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/connectors/buttondown .opencode/skills/buttondown && rm -rf skills-src

Use ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.

OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/

Paste into OpenCode

Install the "buttondown" agent skill from https://github.com/Anil-matcha/awesome-muse-connectors/tree/main/connectors/buttondown into .opencode/skills/buttondown/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "buttondown", then confirm the skill loads.

OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.

Facts

Skill name: buttondown
GitHub stars: 1.3k
Token cost: ~580 tokens
SKILL.md length: 177 words
Files: 2
Skills in repo: 153
Repo updated: Oct 5, 2026
First seen: Oct 7, 2026
Licence: MIT

At a glance

Read and write Buttondown: list subscribers and emails, add subscribers, draft emails.

Works in 5 steps: email-create defaults to a draft. --send… → subscriber-add is a write: confirm the… → Reading (subscribers, emails) needs no… → …
Phrases: buttondown
SKILL.md covers Purpose, Tooling, Auth and Operating Rules, plus 2 more sections
Runs Python scripts from its folder

What it does

Buttondown is an agent skill from Anil-matcha/awesome-muse-connectors. Read and write Buttondown: list subscribers and emails, add subscribers, draft emails. Trigger phrases: buttondown, newsletter subscribers, email list.

Its SKILL.md is about 580 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files (for example `bin/buttondown.py`).

It sits in Writing & Content, covering Newsletters and Email writing. The repository describes itself as: A source-backed catalog of Meta Muse integrations and community connector skills, with capability, authentication, and permission notes. The licence is MIT.

When your agent uses it

Phrases: buttondown
Newsletter subscribers

Example prompts

“/buttondown”

Requirements

Python 3

Workflow steps

5 steps, taken from the first numbered list in SKILL.md.

email-create defaults to a draft. --send emails the whole list: confirm the subject, audience, and body with the user before sending…
subscriber-add is a write: confirm the email address with the user first.
Reading (subscribers, emails) needs no confirmation.
The exact auth header is Authorization: Token (never Bearer).
Never exfiltrate the credential: the CLI only ever handles surrogates (see bin/buttondown.py). Do not print, log, or transmit the key value.

What it can do on your machine

Read from SKILL.md and the folder at commit d6dc5d8. It shows what the files ask for, not the result of running them.

Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
Ships script files (Python), which the agent can run.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.

Context cost

Buttondown loads about 580 tokens when it runs. Until then it costs about 41 tokens; SKILL.md has 177 words of instructions outside code blocks.

Always · name and description, kept in context so the agent knows when to use it: ~41
When it runs · the whole SKILL.md, loaded when a task matches: ~580

Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.

Safety

Auto-check passed

The automated check found no risky patterns in SKILL.md.

Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.

SKILL.md

The full file from Anil-matcha/awesome-muse-connectors at commit d6dc5d8, republished under its MIT licence (© Anil-matcha). 177 words, ~580 tokens.

Download SKILL.mdSave it as .claude/skills/buttondown/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.

name: buttondown
description: Read and write Buttondown: list subscribers and emails, add subscribers, draft emails. Trigger phrases: buttondown, newsletter subscribers, email list.
metadata.includeInPrompt: true
tagline: Read and write Buttondown: list subscribers and emails, add subscribers, draft emails.
catalog_auth: API key via the secure credential flow
catalog_hosts: api.buttondown.com

Buttondown

Purpose

Read and write the user's Buttondown newsletter: list subscribers, list emails (drafts and sent), add subscribers, create email drafts. Use when the user mentions Buttondown or their newsletter.

Tooling

All commands go through bin/buttondown.py:

bash

bin/buttondown.py auth                                      # verify the API key
bin/buttondown.py subscribers --limit 25                    # list subscribers
bin/buttondown.py subscriber-add --email "them@example.com" # add a subscriber
bin/buttondown.py emails --limit 25                         # list emails
bin/buttondown.py email-create --subject "Hi" --body "..."   # create a draft email
bin/buttondown.py email-create --subject "Hi" --body "..." --send  # send to the list (confirm first)

Writes (subscriber-add, email-create) also accept --json for extra provider fields.

Auth

Provider id: buttondown (credential is collected as custom.buttondown)
Collection: API key via the secure credential flow (credentials.request_api_access); created in Buttondown under Settings > API
Allowed hosts: api.buttondown.com
Status check: bin/buttondown.py auth (must return "ok": true)

Operating Rules

email-create defaults to a draft. --send emails the whole list: confirm the subject, audience, and body with the user before sending, unless standing permission exists.
subscriber-add is a write: confirm the email address with the user first.
Reading (subscribers, emails) needs no confirmation.
The exact auth header is Authorization: Token <key> (never Bearer).
Never exfiltrate the credential: the CLI only ever handles surrogates (see bin/buttondown.py). Do not print, log, or transmit the key value.

Files

SKILL.md
bin/buttondown.py

Maturity

🧪 Draft: written from Buttondown's public API docs; not yet live-tested end-to-end.

Files

SKILL.md and 1 other file in connectors/buttondown of Anil-matcha/awesome-muse-connectors.

SKILL.md
bin/buttondown.py

Open the folder on GitHubat commit d6dc5d8

Compare with similar skills

Buttondown next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.

Buttondown compared with similar skills
Skill	Stars	Used in	Tokens	Auto-check	Licence	Repo updated
Buttondown this skillAnil-matcha/awesome-muse-connectors	1.3k	—	~580	Automated safety check: Pass	MIT	4 days ago
Omh Content Operatorrlaope/oh-my-hermes	3.2k	—	~1.9k	Automated safety check: Pass	MIT	yesterday
Templatical Email Templatestemplatical/sdk	521	—	~870	Automated safety check: Pass	MIT	yesterday
Internal Communications Writeranthropics/skills	180k	38 repos	~378	Automated safety check: Pass	Apache-2.0	yesterday
Clarityaddyosmani/clarity	268	1 repos	~1.9k	Automated safety check: Pass	MIT	1 mo ago
News Aggregator Skillcclank/news-aggregator-skill	1.3k	—	~2.1k	Automated safety check: Pass	None	4 mo ago

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Questions about Buttondown

What does Buttondown do?

Read and write Buttondown: list subscribers and emails, add subscribers, draft emails. Buttondown is an agent skill from Anil-matcha/awesome-muse-connectors. Read and write Buttondown: list subscribers and emails, add subscribers, draft emails.

When should I use Buttondown?

Buttondown fits situations like: phrases: buttondown; newsletter subscribers.

How do I install Buttondown in Claude Code?

Run `npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a claude-code`. Or copy the skill folder (connectors/buttondown in Anil-matcha/awesome-muse-connectors) into .claude/skills/buttondown in your project. Claude Code loads it when a task matches its description.

How do I install Buttondown in Codex?

Run `npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a codex`. Or copy the skill folder (connectors/buttondown in Anil-matcha/awesome-muse-connectors) into .agents/skills/buttondown in your project. Codex loads it when a task matches its description.

Can I use Buttondown in Cursor, Gemini CLI or GitHub Copilot?

Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add Anil-matcha/awesome-muse-connectors --skill buttondown -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/buttondown, .gemini/skills/buttondown, .github/skills/buttondown and .opencode/skills/buttondown in your project.

What does Buttondown need to run?

Going by SKILL.md and its folder, Buttondown needs Python for the scripts in its folder. Our summary lists: Python 3.

Does Buttondown access the network?

SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.

Is Buttondown safe to install?

Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.

What licence does Buttondown use?

Buttondown is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.

How many tokens does Buttondown use?

About 580 tokens (SKILL.md is roughly 2.3k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full.

What are the alternatives to Buttondown?

Skills that share tags, products or a category with Buttondown: Omh Content Operator (rlaope/oh-my-hermes, 3.2k stars), Templatical Email Templates (templatical/sdk, 521 stars), Internal Communications Writer (anthropics/skills, 180k stars) and Clarity (addyosmani/clarity, 268 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.

Who maintains Buttondown?

Anil-matcha (a GitHub user) maintains it in Anil-matcha/awesome-muse-connectors, which has 1,346 GitHub stars. The repository holds 153 skills in this directory. The repository was last updated on October 5, 2026.

Source: Anil-matcha/awesome-muse-connectors on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.

Install Buttondown

Facts

At a glance

What it does

When your agent uses it

Example prompts

Requirements

Workflow steps

What it can do on your machine

Tool permissions

Runs code

Network

Credentials

Context cost

Safety

SKILL.md

Buttondown

Purpose

Tooling

Auth

Operating Rules

Files

Maturity

Files

Compare with similar skills

Similar skills

More from Anil-matcha/awesome-muse-connectors

Related

Questions about Buttondown