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Keeping the index on the user's machine eliminates the network roundtrips that would otherwise slow every search. Since agents search constantly and often in parallel, this keeps Composer 2 running without stalls. The speed difference is most noticeable in enterprise monorepos.
Instant Grep is already shipped and works with Composer 2. Point your agent at a large codebase and let the index handle grep — the iteration loop is faster when search no longer introduces multi-second delays.
Cursor can now search millions of files and find results in milliseconds. This dramatically speeds up how fast agents complete tasks. We're sharing how we built Instant Grep, including the algorithms and tradeoffs behind the design. https://t.co/uzqMUgHvYn
