Sctx

sctx

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**Token-optimizing command wrapper for AI coding agents.**

`sctx` runs the commands your agent already runs and returns the same information in a fraction of the tokens - exit code intact, errors intact, every omission marked.

For more details and guides, please visit [**synapctx.com/sctx**](https://synapctx.com/sctx/)

 

[](https://synapctx.com/sctx/) [](https://github.com/synapctx/sctx/actions/workflows/ci.yaml) [](https://pkg.go.dev/github.com/synapctx/sctx) [](https://github.com/synapctx/sctx/tags) [](LICENSE.txt)

 

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Overview

An AI coding agent reads with its context window, and command output is the largest thing it reads that nobody chose. A test run that prints four hundred passing lines, a `git status` padded with hints, a recursive grep returning the same file forty times - all of it arrives in full, is paid for in full, and almost none of it is what the agent needed.

`sctx` sits in front of those commands. It parses the output it recognises and re-renders it around the part that carries the signal: the failures, the changed files, the matches grouped by location. Everything else is summarised behind an explicit marker, so the agent can always tell that something was left out.

 

**Measured across 6,361 real command runs: 61% of output tokens removed.**

Command	Output tokens removed	Runs measured
rg	91.4%	436
go test	58.2%	613
grep	52.6%	2,209
find	48.1%	141
git diff	26.0%	47
ls	23.3%	319
cat	**0.5%