https://tech.mytrapp.com/tags/prompt-injection/Recent content in Prompt-Injection on tech.mytrapp.comHugoen-usDavid TrappSun, 25 Oct 2026 00:00:00 +0000https://tech.mytrapp.com/posts/harness-engineering-agent-practices/Sun, 25 Oct 2026 00:00:00 +0000https://tech.mytrapp.com/posts/harness-engineering-agent-practices/One single-file agent harness and twenty-four practices that survived it, each traced to the failure that paid for it: a 4,116-token fixed overhead rendered from the tree and held to a ceiling, output caps derived from the window the endpoint declares, confirmation tiers that read parsed effect instead of spelling, and an injection defence I built after watching a run execute four numbered steps it had only been asked to read.