rust-agent

rust-agent is an independent, cross-platform Rust Agent Runtime built around compile-time capability composition. A composition compiler resolves typed Capability/Provider/Consumer metadata and emits a standalone Cargo graph that contains only the selected Components.

The project is being delivered in gated phases. The normative design is in ARCHITECTURE.md, current implementation status is in docs/phase-status.md, and repository contribution gates are in AGENTS.md.

Development uses exactly Rust and Cargo 1.97.1. rustup reads the checked-in rust-toolchain.toml and selects the pinned compiler, formatter, Clippy, and CI cross-compilation target set; do not override it with +stable or +nightly. The JavaScript WASM fixture additionally requires exactly wasm-bindgen-cli version 0.2.127; both its Rust protocol crates and the CI-installed executable are pinned and checked by automated synchronization tests.

rustc --version
cargo --version
cargo fmt --all --check
cargo check --workspace --all-targets
cargo clippy --workspace --all-targets --all-features -- -D warnings
cargo test --workspace --all-targets --all-features

Install the pinned post-link executable before running the full suite:

cargo install wasm-bindgen-cli --version 0.2.127 --locked
wasm-bindgen --version

Any compose or development build whose locked graph contains registry packages takes --registry-cache explicitly. The directory is used only as an offline Cargo source cache; it does not enter composition identity, while Cargo.lock checksums and the canonical locked registry identities do. For a JavaScript WASM build, the build policy must additionally map wasm-bindgen-cli to its canonical absolute path, SHA-256 digest, and exact wasm-bindgen 0.2.127 version output.

The checked-in tests/fixtures packages have no product semantics. They exist to prove that generated Cargo dependency graphs physically add and remove selected Component packages during Phase 1A.