Add the first wiki pages: worked examples, choices, split DWARF Covers what the repository deliberately does not carry: goal-shaped sequences, the reasoning behind a default, and the retention contract that --debug creates. The flag reference stays in Documentation/usage.md, which the every-flag-is-documented gate checks on every push. These pages link to it rather than restating it, so there is no second copy free to drift. Refs #96 Claude-Session: https://claude.ai/code/session_019T1bLfDhuHJpNNhn8CHVLJ