A weekday brief on AI tools a solo founder can actually use.

Founder Signal is a weekday email digest of high-signal AI tool launches for indie and solo software founders. Each issue names a few tools, what they actually do, and whether they help if you ship alone or as a two-person shop.

Monday–Friday. Nothing on weekends. If an issue is not ready, it does not send.

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One public item from a recent issue. The rest of the digest is for subscribers.

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DeepSeek Harness (dsh)

DeepSeek published an MIT-licensed agent runtime in developer preview: models, tools, skills, sessions, sandboxes, storage, loops, scheduling, and the UI are plugins you swap in config. Agent = Model + Harness. Quick start: npx @deepseek-ai/dsh web. The GitHub repo was created 13 Aug; latest pre-release v0.1.0-rc.8 landed 19 Aug. As of 20 Aug GitHub shows 167,331 stars.

For a solo founder paying out of pocket: run a coding-agent loop on a cheap DeepSeek or OpenAI-compatible model instead of starting another harness. Breaking changes are expected — experiment-grade, not a production bet.

https://github.com/deepseek-ai/deepseek-harness

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