Sendly: Sending Email Campaigns

Picks an audience, drafts a Sendly email campaign, sends a test, and sends the campaign only after the user confirms the recipient count. Use when the user asks to 'draft a September newsletter for premium members', 'write an email announcement', 'prepare a campaign', 'who is in this segment', 'send me a test email', 'send the campaign', or run an email marketing send or email blast.

Draft and send a Sendly campaign

Go from an idea to a campaign in DRAFT, then to a test, then to a send. Sending reaches real inboxes, so it happens only after the user explicitly confirms the audience size.

Connecting and calling the tools

Every tool in this skill comes from the sendly MCP server, the Sendly connector, and is written here as sendly:<tool>.

• Tools listed by name: call them directly, for example sendly:list_contacts.
• Only sendly:search_tools and sendly:execute_typescript listed (Code Mode, the default): call sendly:search_tools first, then call each tool inside sendly:execute_typescript as external_<tool> (for example external_list_contacts); the program must return its result. Scopes, confirmations and gates are identical on both surfaces.
• "Tool not found": switch to the Code Mode route instead of retrying the direct call. If sendly:search_tools does not return the tool either, its OAuth scope was not granted; the user reconnects Sendly and approves that scope.
• No sendly tools at all: Sendly is not connected yet. Install the Sendly power, which adds the server; it signs in with OAuth on first use.

Tools you will use

• sendly:list_segments, sendly:list_segment_contacts, sendly:list_lists, sendly:list_contacts: find and size the audience.
• sendly:list_templates, sendly:get_template: reuse the copy and layout of an existing template.
• sendly:create_campaign: save a campaign in DRAFT. Needs name, subject, body, and from, even though the schema marks only the first two as required.
• sendly:update_campaign: change a draft campaign.
• sendly:send_test_email: send a test to the project owner's own verified address. Refuses any other recipient.
• sendly:send_campaign: two-step. Without confirm: true it returns the audience size and sends nothing. With confirm: true it sends to every contact in the audience.
• sendly:check_domain: confirm the from address is on a verified domain.

Workflow

1. Settle the audience. Call sendly:list_segments or sendly:list_lists, then sendly:list_segment_contacts or sendly:list_contacts to show who is in it and how many.
2. If the user wants to start from a template, call sendly:list_templates and sendly:get_template.
3. Write the subject and body in the user's voice. Show them and ask for changes once.
4. Call sendly:check_domain and make sure the from address is on a verified domain. If not, stop and offer the checking-email-deliverability skill.
5. Call sendly:create_campaign with name, subject, body, from, and audience. Report the campaign id and that it is a DRAFT. Nothing is sent.
6. Offer a test. Call sendly:send_test_email only after the user says yes; it goes to their own verified address.
7. When the user asks to send, call sendly:send_campaign without confirm. Report the audience size it returned, the subject, and the from address.
8. Ask: "Send this to N contacts now?" Only after an explicit yes in this turn, call sendly:send_campaign again with confirm: true. Report the result.

Rules

• Never call sendly:send_campaign with confirm: true, sendly:send_email, or sendly:send_mailbox_email without an explicit yes to a stated recipient count. An earlier "send it" before the count was shown is not confirmation.
• Never send to addresses that are not already contacts in the project. There is no bulk import or arbitrary-recipient send here, and a purchased list is not consent.
• If sendly:send_test_email refuses a recipient, explain that tests go only to the owner's own verified address.
• If the sending tools are missing, the user did not grant the sending scope. Say so; do not look for another way to send.
• Do not fabricate links, prices, or claims in the copy. Ask for them.