Builder releases a lossless context compressor for coding agents with BLAKE3 proofs
Clear-Paper-9475 · reddit · 2026-07-21
A builder says they created a **lossless context compressor for coding agents** that is aware of prompt caching. - Instead of trading accuracy for fewer tokens, it only rewrites blocks it can prove are exactly reconstructible. - It works on tool output such as file contents, command output, JSON, stack traces, and diffs, where lossless preservation matters. - The system attaches a **BLAKE3 certificate** so the compressed result can be independently verified. - If a block cannot be proven lossless, it is left untouched.
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