FastCtx: Stop Wasting Your Agent's Brain on Tool Mechanics
My Codex just spent 4 tool calls reading one file. But it had to construct a shell command to grep for a symbol, handle the escape quoting, pipe through head to paginate, then read the file with the right line range — all before it could actually do something useful. But that’s 3–5 tool calls per file operation, and every one burns context budget that should be going toward understanding my code. ...