Disclosure Alpha is an open-source Python tool that parses, scores, and diffs 10-K, 10-Q, and 8-K filings locally and deterministically. Stripping out expensive LLM dependencies, it extracts 10 native, headline-weighted language scores to flag immediate text shifts at zero cost. Built for pragmatic quantitative and developer workflows, it runs seamlessly using local HTML pipelines or connects instantly to your AI environment via an integrated MCP server.