$ whoami
Yonga Springfield
aka 0xspryon.
Security researcher. I break things to understand them — then write down what it taught me.
$ ls ./latest --sort=date ALL_POSTS
01 Vuln Bank Part 4: Building the MCP Doorway Turning the retrieval engine into an MCP tool, including the custom protocol adapter, generated schemas, error handling, permissions, and an authentication bug. 02 Vuln Bank Part 5: Measuring What the Bank Remembers The next phase of the vuln bank: making recall@k observable, mapping the knobs that affect it, and testing stronger or security-adapted models without forgetting the small VPS that has to run them. 03 Vuln Bank Part 3: Two Legs, One List The vuln bank's read path combines semantic and lexical retrieval with Reciprocal Rank Fusion, reranking, and a recall@5 evaluation harness.