Synaptic turns any repo into a persistent, queryable knowledge graph across 30+ languages, then traces exactly what a change would break and serves it to your AI assistant over MCP. One static Rust binary. No runtime.
REV 0.3.12
An assistant re-reads thousands of files to answer one structural question. Synaptic answers from a compact graph: a fraction of the tokens, none of the dead-end reads.
fewer tokens to answer one structural question. The ratio grows with the size of the repo.
Exact cl100k counts on Synaptic's own source (199 files, 510,966 tokens). 27 to 38× across six questions. See the full breakdown →
Every inferred relationship is tagged EXTRACTED, INFERRED, or AMBIGUOUS, so you can audit what the graph believes before you trust it.
Every other capability dimensions off this one. affected walks the real call, import, and dispatch edges to bound a change's blast radius; predict forecasts it, and speculate proves it by running the at-risk tests in a throwaway worktree. Synaptic never edits your source.
Relevance-ranked subgraph search, shortest paths, and node explanations over a graph of symbols and relationships in 30+ languages.
Event buses, Electron IPC, reflection and dispatch tables are modeled or cataloged, so an empty result is never mistaken for "safe to change."
Rename, move, or extract emits a confidence-scored edit plan; verify rebuilds and checks the graph held. The tool proposes, it never edits.
Flags row-level-security gaps, over-broad grants, likely injection, missing indexes, SELECT * and N+1 over a SQL-aware graph.
28 read-only tools over stdio or HTTP, so your AI assistant queries the graph before it greps or reads a single file.
The drawing above is Synaptic's own codebase. Open the explorer to search, orbit, and inspect any node in three dimensions, then load the whole graph.
Each language is built and tested in isolation in CI. Highlighted rows are Tier 1.
Builds with a stable Rust toolchain, or grab a prebuilt binary for Linux, macOS, or Windows.
cargo install --path bin/synapticcargo build --release → target/release/synapticsynaptic extract .synaptic query "authentication flow"synaptic affected parse_configsynaptic serve