❯ whoami
Yasyf Mohamedali
Eng & 3x venture-backed founder. I like building + investing in devtools, infra, and AI.
Currently working on long-horizon research harnesses for LLMs. Previously CEO @ Sym and CTO @ Karuna. In a past life I taught MIT’s grad compilers class and was a writing advisor for HBO’s Silicon Valley.
ls -t writing/
Sep 21, 2026 Give your LLM more DSLs! Small DSLs turn LLM-written code into reusable decisions, with image inclusion in a context compiler as the worked example. 8 min Sep 9, 2026 Less prompts, more guardrails Why steering coding agents belongs in declarative, tested hooks instead of prompts, and how a domain-specific language lets agents improve their own harness. 10 min Oct 23, 2024 Improving Claude Computer Use A distributed, resilient implementation of Anthropic's computer-use tools, on Modal. 5 min
All writing → gh repos --sort featured
CompressGPT
Cut LangChain prompt token usage by ~70% with one changed line.
gpt-do
Have GPT-3 write your bash commands — do kill the process locking up my GPU.
summ
Question-answering and search across piles of conversation transcripts, via GPT.
cat angel.md
$10k angel checks in devtools, infra, and AI, vouched for by the founders I've backed.
More on angel investing → which yasyf
- GitHub: github.com/yasyf
- LinkedIn: linkedin.com/in/yasyf
