mist-go

Shared library for the MIST stack. Zero external dependencies.

Install

go get github.com/greynewell/mist-go

Tools

Repo	What
matchspec	Eval framework
infermux	Inference router
schemaflux	Data compiler
tokentrace	Observability

Packages

Package	What
protocol	Message envelope, types, versioning, typed payloads
transport	HTTP, file, stdio, channel transports
cli	Subcommands, typed flags, help generation
config	TOML parser, env var overrides, validation
output	JSON lines, aligned tables
server	HTTP server, graceful shutdown
errors	Structured error codes, JSON marshaling
trace	Distributed tracing, W3C Trace Context
logging	Structured JSON logging
retry	Exponential backoff with jitter
health	Liveness/readiness probes
checkpoint	Durable progress checkpointing
lifecycle	Startup/shutdown orchestration
circuitbreaker	Circuit breaker
metrics	Counters, gauges, histograms
parallel	Worker pool, rate limiting, backpressure
resource	Memory/goroutine limits
platform	Cross-platform file locking
misttest	Test helpers

Usage

a, b := transport.NewChannelPair(64)
defer a.Close()
defer b.Close()

msg := protocol.New("myapp", "eval.run", map[string]any{
    "suite": "swe-bench-lite",
    "samples": 10,
})
a.Send(context.Background(), msg)
got, _ := b.Receive(context.Background())

Transports are URL-addressed:

t, _ := transport.Dial("http://localhost:8081")
t, _ := transport.Dial("file:///tmp/data.jsonl")
t, _ := transport.Dial("stdio://")
t, _ := transport.Dial("chan://")

Test

go test ./...                                        # 652 tests
go test -race ./...                                  # race detection
go test -fuzz=FuzzUnmarshal -fuzztime=30s ./protocol/
go test -fuzz=FuzzParseTOML -fuzztime=30s ./config/

Built with MIST

Project	What
swe-bench-fast	SWE-bench eval harness with native ARM64 containers. 6.3x speedup on Apple Silicon and Graviton.

Architecture: ARCHITECTURE.md