well_send_message

shallow

io.github.WellApp-ai/well-mcp · Verify this server

Send one email to one or several people (a supplier, a customer, an accountant) from the user's own Gmail. Use it when the user asks you to email, write to, or message someone else. To notify the user themselves, use well_send_notification instead. - `to`: a list of the recipients' email addresses, one entry per address. Use the addresses the user gave, or ones read from Well's records; never guess one. Ask the user when you do not have it. One email goes to all of them: do not call this tool once per recipient. - `cc` and `bcc`: optional lists of addresses in copy and in blind copy. Fill them only when the user asked for a copy. - `subject` and `body`: write them in the user's language, with what the user asked to say. The body is plain text; line breaks are kept. - `invoice_id`: the id of an issued invoice, only when the user asks you to send that invoice or to chase its customer for it, and you hold its id from Well's records (an invoice you issued or read in this conversation). Well then records the email against the invoice and ends the body with a lasting link to the invoice's PDF, which the card shows: never write a link to the invoice in the body yourself. Leave it out for every other email, and never guess or invent an id. A draft invoice, or an invoice of another workspace, is refused before anything is sent. - A sales invoice goes out once, then is chased at most once per lateness band (1 to 30, 31 to 60, 61 to 90, over 90 days late). When the result has code `invoice_already_sent`, nothing was sent: tell the user when and to whom it already went, as the message says, and do not call this tool again on your own. - `send_again`: set it to true only when the user knows the invoice already went out at this step (you told them, or they said so) and asks to send it again anyway, for example to a corrected address or as a copy the customer asked for. The card then says it sends the invoice again, and the user approves it there. Never set it on your own. This call sends nothing. It returns an approval link: give it to the user and say the email goes out only after they open the link in Well, read it and approve it there. Never say the email was sent, and never call this tool again for the same email unless the user asks for a changed one: a changed email needs a new link. When the result has code `missing_send_scope` or `gmail_reconnect_required`, Well cannot send from the user's Gmail yet: give the user the reconnect link from the message, and call this tool again with the same values once they say they reconnected. Never send the email another way. When the result has code `outlook_send_unsupported`, the user's mailbox is Outlook and Well cannot send from it yet: say so, and offer the two ways the message names. Never say the email was sent. When the token authorizes one workspace, call this directly — no workspace call is needed first. When it authorizes several, this read will not guess which one you mean: pass `workspace_id` on the call.

100.0/100

1 trials · measured 2 days ago

well_send_message scores 100.0/100 on Vouch's measured behaviour index, from 1 real invocation trials against io.github.WellApp-ai/well-mcp, measured 18 Oct 2026 under methodology v0.2.0. Every measured component scored 100.

Component breakdown

ComponentWeightValue
Reliability35%not applicable
Schema integrity25%100.0
Failure behaviour15%not applicable
Latency15%not applicable
Concurrency10%not applicable

Tool details

Transport
remote
Credential class
gated
Input schema
not declared
Output schema
not declared
Side-effect classification
unclassified

Score history

DayScoreTierMethodology
2026-10-18100.0shallowv0.2.0

Probe evidence

ProbeOutcomes
schema_integritypass: 1

Raw request/response logs are not archived yet — the outcome counts above are drawn directly from every recorded trial.

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Vouch score: well_send_message
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well_send_message — Vouch