GRIM PROMPTER

Summary from the TLDR InfoSec newsletter

Grim Prompter is a Claude Code and Codex skill that has a coding agent build a threat model from a repo and cite file-and-line evidence for every trust boundary, threat, and mitigation. It ships 36 architecture-specific workflows, from RAG and agentic AI to OT/ICS and smart contracts, and 29 method prompts covering STRIDE, PASTA, LINDDUN, and MITRE ATLAS. Saved JSON baselines let the agent review a branch diff against the existing model.