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buttondown

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

Skill by TanNhatCMS

IndexedMIT
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Install

Works with Claude Code, Claude apps, Codex, Cursor, Gemini CLI, GitHub Copilot, VS Code, OpenCode, Goose, Windsurf. Read the repository before you give any tool access to your data.

npx agentmarket install skill/tannhatcms-buttondown

Asks which of your tools to add it to (Claude Code, Codex, Cursor, VS Code, Windsurf, Gemini CLI, Claude Desktop) and shows the change first. See https://agentmart.dev/cli.

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About

Read and write Buttondown: list subscribers and emails, add subscribers, draft emails. Trigger phrases: buttondown, newsletter subscribers, email list.

Use cases: writing, marketing, productivity

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Permissions

What this skill can do and what it asks for, from its SKILL.md. Checked Oct 25, 2026.

Tools
No tools found
Secrets
None asked for
Install scripts
None found
Runs as
Python package

Network hosts it talks to 1

  • codeload.github.com · found in install command

Files it touches

  • ~/.claude/skills/buttondown

What's inside

Skill name
buttondown
Description
Read and write Buttondown: list subscribers and emails, add subscribers, draft emails. Trigger phrases: buttondown, newsletter subscribers, email list.
License
MIT
Metadata
includeInPrompt: true
Instructions
40 lines in SKILL.md · view on GitHub

Before installing

  • Ships executable scripts

Files (2)

  • SKILL.md
  • buttondown.py · bin/

SKILL.md (first lines)

# 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
1. `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.
2. `subscriber-add` is a write: confirm the email address with the user first.
3. Reading (subscribers, emails) needs no confirmation.
4. The exact auth header is `Authorization: Token <key>` (never Bearer).
5. 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.

From TanNhatCMS/jarvis, MIT.

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Last commit (this folder)
Oct 22, 2026 (9 days ago)

From GitHub (fetched Oct 24, 2026).

Details

License
MIT
First seen
Oct 24, 2026
Last checked
Oct 24, 2026

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Cite this page

buttondown skill. Agent Mart. https://agentmart.dev/skills/tannhatcms-buttondown (last updated 2026-10-24)