docs: public README + generic CI workflow

.github/workflows/ci.yml

@@ -0,0 +1,29 @@
+name: ci
+
+on:
+  push:
+    branches: [main]
+  pull_request:
+
+jobs:
+  check:
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: install rust
+        uses: dtolnay/rust-toolchain@stable
+        with:
+          components: rustfmt, clippy
+
+      - name: fmt
+        run: cargo fmt --all --check
+
+      - name: clippy
+        run: cargo clippy --all-targets -- -D warnings
+
+      - name: build
+        run: cargo build --all-targets
+
+      - name: test
+        run: cargo test

README.md

@@ -4,22 +4,35 @@ Async Rust SDK for the Claude Agent CLI — a faithful port of the official
 Python [`claude-agent-sdk`](https://github.com/anthropics/claude-agent-sdk-python).
 
 This crate wraps the `claude` CLI as a subprocess and exposes its
-newline-delimited JSON stream as ergonomic Rust types. The Python SDK's
+newline-delimited JSON stream as ergonomic, strongly-typed Rust values. The
-two entry points map directly:
+Python SDK's two entry points map directly:
 
 - `query()` for fire-and-forget one-shot prompts.
-- `ClaudeSDKClient` → `claude_agent_sdk::Client` for bidirectional
+- `ClaudeSDKClient` → `claude_agent_sdk::Client` for bidirectional,
   multi-turn sessions.
 
+It is an independent, community-maintained port and is not affiliated with or
+endorsed by Anthropic.
+
 ## Status
 
 **v0.0.1** — initial port. Core feature parity for the subprocess wire
 protocol; advanced features (control protocol, hooks, in-process MCP servers,
-session_store, sandbox, plugins, agents) are deferred to v0.2. See
+session store, sandbox, plugins, agents) are deferred. See
-[v0.1 scope](#v01-scope-and-known-limitations) below.
+[scope and known limitations](#scope-and-known-limitations) below.
+
+## Requirements
+
+- Rust 1.85 or newer (the crate uses the 2024 edition).
+- The `claude` CLI available on `PATH` (or supplied explicitly via
+  `ClaudeAgentOptions::with_cli_path()`), and an authenticated Claude
+  session. **The SDK does not bundle the CLI binary** — it shells out to
+  whatever `claude` it finds.
 
 ## Install
 
+The crate is distributed as a git dependency:
+
 ```toml
 [dependencies]
 claude-agent-sdk = { git = "https://git.sulkta.com/Sulkta-OSS/claude-agent-sdk-rust" }
@@ -27,9 +40,8 @@ tokio = { version = "1", features = ["full"] }
 tokio-stream = "0.1"
 ```
 
-Prerequisites: the `claude` CLI on `PATH` (or supply
+Pin to a tag or commit (`rev = "..."` / `tag = "..."`) for reproducible
-`ClaudeAgentOptions::with_cli_path()`), and an authenticated Claude
+builds.
-session. The SDK does not bundle the CLI binary.
 
 ## Quick start
 
@@ -67,6 +79,9 @@ async fn main() -> claude_agent_sdk::Result<()> {
 }
 ```
 
+`query()` returns a stream that ends when the CLI emits its terminal `result`
+message, automatically tearing down the subprocess.
+
 ## Multi-turn sessions
 
 ```rust
@@ -83,7 +98,7 @@ async fn main() -> claude_agent_sdk::Result<()> {
     // ...consume messages until a Result frame, then ask a follow-up...
     client.send("And of Germany?").await?;
 
-    // Drain until next Result, then disconnect.
+    // Drain until the next Result, then disconnect.
     while let Some(msg) = messages.next().await {
         if let Message::Result(_) = msg? {
             break;
@@ -94,7 +109,49 @@ async fn main() -> claude_agent_sdk::Result<()> {
 }
 ```
 
-See the `examples/` directory for runnable variants.
+`Client` keeps a single CLI subprocess alive across turns, so follow-up
+prompts don't pay the cold-start cost again.
+
+## Configuration
+
+Both entry points are configured with `ClaudeAgentOptions`, a builder you
+chain `.with_*()` methods on:
+
+```rust
+use claude_agent_sdk::{ClaudeAgentOptions, PermissionMode};
+
+let opts = ClaudeAgentOptions::new()
+    .with_model("claude-sonnet-4-5")
+    .with_permission_mode(PermissionMode::AcceptEdits)
+    .with_allowed_tool("Read")
+    .with_allowed_tool("Bash")
+    .with_cwd("/tmp/my-project")
+    .with_max_turns(5);
+```
+
+See the `ClaudeAgentOptions` API docs for the full list of supported fields.
+
+## Examples
+
+Runnable examples live in [`examples/`](examples/). With the `claude` CLI on
+`PATH` and authenticated:
+
+```sh
+cargo run --example basic         # minimal one-shot query()
+cargo run --example with_options  # query() with a configured options builder
+cargo run --example interactive   # multi-turn Client session
+```
+
+## Building and testing
+
+```sh
+cargo build
+cargo test            # unit + end-to-end tests. A fake CLI fixture stands in
+                      # for the real `claude` binary, so the suite needs no
+                      # network access or authenticated session to run.
+cargo clippy --all-targets
+cargo fmt --check
+```
 
 ## Mapping the Python SDK
 
@@ -114,31 +171,49 @@ See the `examples/` directory for runnable variants.
 | `CLIJSONDecodeError`         | `Error::JsonDecode { .. }`      |
 | `MessageParseError`          | `Error::MessageParse { .. }`    |
 
-## v0.1 scope and known limitations
+## Scope and known limitations
 
-The v0.1 port covers the core path. The following are deferred:
+This release covers the core path of the Python SDK:
 
-- **Control protocol** — `interrupt()`, `set_permission_mode()`,
+- Subprocess transport with newline-delimited JSON framing.
-  `set_model()`, `get_mcp_status()`, etc. The Python SDK sends a JSON-RPC
+- All message and content-block types parsed faithfully.
-  `initialize` request before the first user message and handles control
+- `query()` + `Client` for one-shot and bidirectional use.
-  requests/responses over the same stdio pair. The Rust `Client` currently
+- The `ClaudeAgentOptions` flag surface relevant to subprocess arguments.
-  speaks only the bare user / assistant / result frames. Adding the
+
-  control protocol unlocks the rest of the API.
+The following are deferred — see the upstream Python README for the current
+shape of these features:
+
+- **Control protocol over JSON-RPC** — `interrupt()`, `set_permission_mode()`,
+  `set_model()`, `get_mcp_status()`, etc. The Rust `Client` currently speaks
+  only the bare user / assistant / result frames. Adding the control protocol
+  unlocks the rest of the API.
 - **`can_use_tool` permission callback** — requires the control protocol.
-- **In-process MCP servers (`@tool` / `create_sdk_mcp_server`)** — the
+- **In-process MCP servers (`@tool` / `create_sdk_mcp_server`)** — needs a
-  Python decorator wraps a `mcp.server.Server` instance. The Rust shape
+  Rust trait/derive-macro shape that isn't drafted yet.
-  for this (likely a derive macro on a `Tool` trait + a runtime that
+- **`HookMatcher`** — the wire format is supported on the CLI side, but the
-  multiplexes over the control protocol) is not yet drafted.
+  Rust callback surface is not designed.
-- **`HookMatcher`** — wire format is supported on the CLI side but the Rust
-  callback surface is not designed.
 - **`SessionStore`** mirroring adapter.
 - **`Sandbox` settings**, **plugins**, **agents** dataclass.
 
-Each of these degrades gracefully — a v0.1 caller using a newer CLI sees
+Each of these degrades gracefully — a caller using a newer CLI sees fewer
-fewer features, not breakage.
+features, not breakage.
+
+## Contributing
+
+Contributions are welcome. A good change:
+
+- keeps the wire protocol faithful to the upstream Python SDK (cite the
+  behavior you're matching where it isn't obvious);
+- comes with a test — the end-to-end suite drives a fake CLI over the real
+  framing, so most behavior can be covered without a live `claude` binary;
+- passes `cargo fmt --check`, `cargo clippy --all-targets`, and `cargo test`.
+
+Open an issue to discuss larger features (especially anything from the
+deferred list above) before sending a big patch.
 
 ## License
 
 MIT. See [`LICENSE`](LICENSE).
 
-This is an independent port; the upstream Python SDK is © Anthropic, PBC.
+This is an independent port; the upstream Python SDK is © Anthropic, PBC, and
+the bundled `LICENSE` preserves that notice alongside this port's copyright.