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rlg 0.0.13 highlights

The hand-written part of the 0.0.13 GitHub release. ## What's Changed, ## Checksums and the Full Changelog line are composed at release time (AGENTS.md, Release Page Format).

Highlights ⭐️

  • MCP over HTTP: rlg-mcp runs on the official MCP SDK and serves stdio, streamable HTTP (--transport streamable-http) or the older HTTP+SSE transport (--transport sse), for protocol revisions 2024-11-05 through 2026-07-28.
  • A smaller, faster engine: 107 crates leave the lockfile as miette, notify, reqwest and tonic give way to built-in code, and fire() costs about what tracing::info! does on the calling thread, down from 2.4 times, without formatting there.
  • Binaries for every platform: each release now attaches musl-static Linux, macOS and Windows archives with manpages, shell completions and SLSA provenance, and make install installs the same from a checkout.
  • OTLP through a local Collector: rlg-otlp carries no TLS stack and sends plain OTLP/HTTP to a Collector on localhost:4318; the blocking exporter now treats a 4xx as final and reports statuses as BadStatus.