Tools

Open-source tools and repos worth knowing, one per story.One tool or repo per story: what it does, who maintains it, its licence, how active it is, how to try it in minutes, and what it replaces.

ToolsOct 15, 16:10 UTC

pstack: a Cursor engineer's open-source skill pack that makes agents prove their work

pstack is a free, MIT-licensed plugin of agent skills from Cursor engineer Lauren Tan. Its /poteto-mode skill picks one of 22 playbooks for a task, applies engineering principles such as proving the work on the real app, and can have four models review a diff.

8 min read

ToolsOct 15, 09:10 UTC

sgrep cuts agent search cost 21% on SWE-bench, and the accuracy gain is within noise

Context.dev's open-source sgrep, a local semantic layer on top of ripgrep, cut LLM API spend by 21.3% in a 100-attempt SWE-bench Verified test while solving 70 attempts to ripgrep's 68. The authors' own confidence interval on that accuracy gap runs from minus 3 to plus 8 points.

9 min read