dsh-text-reverse

dsh-text-reverse is a minimal local text-reversal tool for the DeepSeek Harness plugin ecosystem. It addresses a narrow but practical need: when a model conversation requires flipping a string from end to start, you get a deterministic, registered tool call instead of relying on an external API, a network round-trip, or a prompt trick that asks the model to emit characters one by one.

Under the hood it is pure Node.js with zero HTTP calls and no third-party runtime dependencies; every byte is processed inside your local process. Once installed, the plugin registers a tool the model can invoke mid-conversation: in it a Unicode string, out comes the character-order reversal. Because nothing leaves the machine, latency is bound to local CPU speed and typically completes within a single function-call cycle, making it suitable for tight pipeline stages.

It fits three use cases well: developers who are privacy-sensitive and do not want text leaving the host during a session; integration engineers who want a simple, verifiable deterministic tool to smoke-test the tool-calling pipeline; and anyone working in sandboxed, air-gapped, or fully offline environments where external services are simply unavailable. Licensed under MIT, the entire source is short enough to review in a few lines before you run it.