An outreach shortlist from people you already know
Tin reviews the Gmail and Calendar history you connect and builds a bounded shortlist for one objective, with the evidence for each person. It is a list of warm contacts, not a purchased database.
codex mcp add tin --url https://app.tin.computer/mcpWhat the workflow does
A Tin workflow is a repeatable job: declared inputs, a bounded run and a defined output. The steps below are what this one does, every time.
- 01Takes one objective, a lookback window and a target count.
- 02Reviews mailbox and, if you allow it, calendar history.
- 03Selects people who fit, with the evidence for each.
- 04Saves SHORTLIST.csv to project Files for you to edit.
Use Tin to shortlist 40 people from my mailbox who would care about our new reseller tier.
What every workflow here comes with
Battle tested on real products
These are the workflows we run for real companies. Claw Messenger went from about $45 to $2,105 in monthly revenue in 124 days on them. Each one has declared inputs, bounded execution and tests, and anything public waits for your review.
See the case study →Open source: read it, fork it, self-host it
Apache 2.0. Every workflow is a folder in the repository: the steps it runs, the data it reads and what it is allowed to do. Change it, or run the whole system on your own machine.
Open the repo →Runs on the agent that already knows your product
Your agent knows what you just shipped and who it is for, so the objective is sharp and the shortlist fits.
All workflows →Using something else for this today?
What this workflow replaces in each product, and what it does not.
Workflows that run well with this one
Questions
Does Tin find new leads I have never contacted?
Not in this workflow. It works from your own mailbox and calendar. List building and enrichment is in build.
Has this been used for real outreach?
Yes. In the Claw Messenger project it produced 137 emails to founders who fit the customer file.
Is Tin really open source?
Yes. Tin is licensed under Apache 2.0 and the source is at github.com/tin-computer/tin. You can read every workflow, change it, and self-host the whole system.
Which coding agents can run Tin workflows?
Any agent that speaks MCP, including Claude Code, Codex and Cursor. There is also an API, and the same projects run in the browser at app.tin.computer.
Why run marketing from a coding agent?
Because it already knows your product. It has the repository open, so it fills workflow inputs accurately, reviews output against what the product really does, and can act on the results in the same session.