How to turn Slack chatter into HeyGen videos with Claude Cowork
Source
HeyGen
Author
HeyGen
Date
Key takeaways · AI-distilled
HeyGen's guide says to switch on only the connectors a job needs, because every enabled connector's tool list sits in Claude's context windowThe maximum amount of text a model can consider at once — its working memory for the current conversation or task.Full definition → and more tools make wrong tool picks more likely.
The workflow keeps rules in a project folder instructions file that Cowork reads before each run, since Cowork does not carry memory between sessions on its own.
For timing, the guide recommends word counts over seconds: avatars read about 2.5 to 3 words per second, so a 25-second update is roughly 65 to 75 words.
Rendering is kept as a separate manual message because it is the only step that spends HeyGen credits; scheduled runs should automate the pitch, never the render.
Per the guide, Claude reaches custom connectors from Anthropic's servers rather than the user's laptop, so a tool reachable only on an internal network will not connect.
Terms in this piece · Glossary
MCP — The Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.
context window — The maximum amount of text a model can consider at once — its working memory for the current conversation or task.
Why it matters
Shows how to chain Slack and HeyGen MCPThe Model Context Protocol — an open standard that lets any AI assistant plug into any tool or data source without custom integration code.Full definition → connectors inside Claude Cowork to turn a week of team messages into a scripted, rendered video with only two human decisions.
