Build and research sales prospect lists from Slack
A cold-email agency says its in-house agent, Hermes, now sources, checks and researches prospect lists for almost all clients, and credits it with over $70M in pipeline.
Done with Custom agent
What they did
A cold-email agency built its own agent, called Hermes. Anyone on the team can message it in Slack with a list request. It finds target companies, fills in their details, checks the data and researches each account. The author says it builds lists that Clay, a common list-building tool, cannot.
How it went
The author says Hermes now builds lists for almost all of the agency's clients. They credit it with over $70M in sales pipeline.
Worth knowing
The author's full write-up stresses how to word a request so the agent returns a usable list.
Try it yourself
Build me a list of [number] target companies matching this profile: [industry], [company size], [region], [buying signal]. For each company, find the website, a likely decision-maker and their role, and a short note on recent news or why they might need [your offer]. Check each entry for missing or doubtful data and flag it. Put the results in a spreadsheet and show me the first 10 rows before finishing the rest. Do not contact anyone.
Swap the highlighted [parts] for your own details.
Source: X · @coldemailchris · Oct 17, 2026
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