PlayForm/@playform/hook-dsh-normalize-file

The file-content normalizer flavor: a DeepSeek Harness plugin that registers the normalize family's `normalize-file` tool - the read → count → write pipeline over files ALREADY on disk, beyond the tool layer. One agent-chosen file per call: the target's content is read, the family's SIX transforms (the core's Dashes/Quotes/Ellipsis/Spaces/Invisible/Fullwidth tables through the shared Replace/ReplaceMap replacers, the same chain the raw-write `normalize: true` applies) are applied with a per-character count, and only when N > 0 is the rewritten content written back through the factory's ONE shared write executor (resolve-side read, fs/write-intent waterfall, standing sandbox policy, writeText, the root-context fs/observed present emit). N = 0 writes NOTHING - the no-op no-write rule. The rewrite is explicit, visible (a diff card showing the before/after) and opt-in by construction: nothing runs without an agent action, the family's first listener-less flavor (no llm/stream, no fs/observed - the background-rewrite posture of the design report is deliberately deferred).