↔
Mention the assistant in a Slack channel and Claude answers in the thread, reads the attached PDF and prepares draft replies that a person approves with a button
In most teams the questions are already in Slack: what does this contract say, how do we answer this customer, where is the summary of that document. Someone copies text into a separate AI window, pastes the answer back and loses the thread. The Claude ↔ Slack pair puts Claude where the conversation already is: it answers when mentioned, reads PDF files shared in the thread and prepares draft replies. Anything that leaves the channel or changes data waits for a person to press a button. Below: what exactly moves, which scenarios we cover and which capabilities of both systems we rely on.
Before someone downloads the PDF, reads twenty pages and writes a summary.
After the file is shared in the thread, the assistant is mentioned, and the answer with the relevant clauses arrives in the same thread for a person to check.
Before the manager drafts a reply alone and asks colleagues for comments.
After Claude prepares a draft in the thread, the manager edits it or presses “Approve”, and the team sees the final version.
Before someone returning from leave scrolls through a hundred messages.
After they ask the assistant in the thread and get a short summary of what was decided and what is still open.
For those who want to check: each point links to the official documentation page it comes from.
By default Anthropic does not use inputs or outputs from its commercial products, including the platform connection, to train its models, unless the account owner explicitly allows it.
Source: privacy.claude.com ↗ checked 2026-09-27Claude answers questions about any text, pictures, charts and tables in the PDF documents you provide; all active models support PDF processing.
Source: platform.claude.com ↗ checked 2026-09-27Tool use: Claude decides when to call a function described by the client based on the request and the function's description, and returns a structured call that the client's application executes.
Source: platform.claude.com ↗ checked 2026-09-27The Events API lets an app react to what happens in Slack: Slack itself calls the app's server when an event occurs, so there is no polling.
Source: docs.slack.dev ↗ checked 2026-09-27Block Kit lets a message carry interactive elements such as buttons and menus; a message can hold up to 50 blocks.
Source: docs.slack.dev ↗ checked 2026-09-27Slack signs every request it sends to an app with a secret unique to that app, so the app can verify the request is authentic.
Source: docs.slack.dev ↗ checked 2026-09-27The limits come from both systems. The assistant sees only the channels it was added to and only the messages where it is mentioned or the threads it is asked about; it does not read the whole workspace. Claude can make mistakes, so answers about contracts, money or customers are a draft for a person, not a decision. Claude can decide to call one of the actions we describe for it, but our application carries the action out, and only after a person approves it. Slack signs each request to the app, and a request without a valid signature is ignored.
Three steps from a first message to work on your project.
Describe the task in the form — in text or by voice. Budget and timing are optional.
A developer studies the brief, asks about anything unclear and sends an estimate.
Once scope and price are agreed, the work begins.
or write to info@coreviaflow.space
Describe the task in text or a voice message. We look at your setup and reply with a plan.
Four services people come to us for most often. Each page explains what we do, how the work goes and where to start.
Choose the system, set up the pipeline, migrate data, train the team.
Learn more →Accounting, telephony, website, payments and messengers feed the CRM on their own.
Learn more →Orders, requests and answers around the clock, straight into your CRM.
Learn more →Flows between CRM, email, spreadsheets, payments and AI, on your own server.
Learn more →AI modelsUSClaude inside your CRM, phone system and chats: it reads whole documents and long client histories, drafts replies and proposals, fills in cards, and a person has the final say.
See scenarios →Automation & workspaceUSSlack as the team's alert desk: leads, deals and calls from the CRM land in a channel, and the team acts on them without leaving the chat
See scenarios →↔
An AI agent on Claude reads the rows of your Google Sheet, sorts requests, fills columns and writes summaries, and a person checks the drafts before they go further
See scenarios →
↔Important Salesforce changes arrive in the right Slack channel as they happen, and a button in the message updates the record back in Salesforce
See scenarios →↔Claude reads PDF attachments on Salesforce records, drafts notes and follow-up emails and sorts incoming leads, and nothing is written back until a person approves it
See scenarios →
↔An AI agent on Claude reads the data in 1С/BAS, answers questions about debts and stock, and prepares documents for the accountant to confirm
See scenarios →Implementation · Development · Integrations →
Claude API (Anthropic) ↔ Slack — the system names are trademarks of their owners. CoreviaFlow is not affiliated with them unless stated otherwise.
