Add Rust workspace scaffolding and build tooling

.gitignore

@@ -198,4 +198,8 @@ cython_debug/
 .ai_slop/
 # Ignore obsolete agent_nodes directory
 src/agent_nodes/
-checkpoints/
+checkpoints/
+
+# TreeAgent graph cache (keep directory structure only)
+.treeagent_cache/graphs/*
+!.treeagent_cache/graphs/.gitkeep

Cargo.toml

@@ -0,0 +1,17 @@
+[workspace]
+members = [
+    "crates/treeagent",
+    "crates/treeagentc",
+    "crates/treeagent-runtime",
+    "crates/treeagent-model",
+]
+resolver = "2"
+
+[workspace.package]
+authors = ["TreeAgent Developers"]
+edition = "2021"
+license = "MIT"
+version = "0.1.0"
+
+[workspace.dependencies]
+anyhow = "1.0"

Makefile

@@ -1,7 +1,16 @@
-.PHONY: swe-sanity swe-one
+.PHONY: swe-build swe-check swe-test swe-sanity swe-one
 INSTANCE ?= sympy__sympy-20590
 DATASET ?= princeton-nlp/SWE-bench_Lite
 
+swe-build:
+	cargo build --workspace
+
+swe-check:
+	cargo check --workspace
+
+swe-test:
+	cargo test --workspace
+
 swe-sanity:
 	python -m pip install -q swebench
 	treeagent-swebench sanity --dataset $(DATASET) --instance-id $(INSTANCE) --namespace ''

crates/treeagent-model/Cargo.toml

@@ -0,0 +1,9 @@
+[package]
+name = "treeagent-model"
+authors.workspace = true
+edition.workspace = true
+license.workspace = true
+version.workspace = true
+
+[dependencies]
+anyhow.workspace = true

crates/treeagent-model/src/lib.rs

@@ -0,0 +1,25 @@
+#[derive(Debug, Default, Clone, PartialEq, Eq)]
+pub struct GraphSpec {
+    name: String,
+}
+
+impl GraphSpec {
+    pub fn new(name: impl Into<String>) -> Self {
+        Self { name: name.into() }
+    }
+
+    pub fn name(&self) -> &str {
+        &self.name
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn stores_name() {
+        let spec = GraphSpec::new("example");
+        assert_eq!(spec.name(), "example");
+    }
+}

crates/treeagent-runtime/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "treeagent-runtime"
+authors.workspace = true
+edition.workspace = true
+license.workspace = true
+version.workspace = true
+
+[dependencies]
+anyhow.workspace = true
+treeagent-model = { path = "../treeagent-model" }

crates/treeagent-runtime/src/lib.rs

@@ -0,0 +1,35 @@
+use treeagent_model::GraphSpec;
+
+#[derive(Debug, Default, Clone)]
+pub struct WorkspaceRuntime {
+    graph_spec: GraphSpec,
+}
+
+impl WorkspaceRuntime {
+    pub fn new(name: impl Into<String>) -> Self {
+        Self {
+            graph_spec: GraphSpec::new(name),
+        }
+    }
+
+    pub fn summary(&self) -> String {
+        format!("TreeAgent runtime initialized for graph '{}'", self.graph_spec.name())
+    }
+
+    pub fn print_summary(&self) -> anyhow::Result<()> {
+        println!("{}", self.summary());
+        Ok(())
+    }
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn summary_mentions_runtime() {
+        let runtime = WorkspaceRuntime::new("demo");
+        let summary = runtime.summary();
+        assert!(summary.contains("TreeAgent runtime initialized for graph 'demo'"));
+    }
+}

crates/treeagent/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "treeagent"
+authors.workspace = true
+edition.workspace = true
+license.workspace = true
+version.workspace = true
+
+[dependencies]
+anyhow.workspace = true
+treeagent-runtime = { path = "../treeagent-runtime" }
+treeagent-model = { path = "../treeagent-model" }

crates/treeagent/src/main.rs

@@ -0,0 +1,20 @@
+use treeagent_runtime::WorkspaceRuntime;
+
+fn main() {
+    let runtime = WorkspaceRuntime::default();
+    runtime
+        .print_summary()
+        .expect("failed to start the TreeAgent runtime");
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn runtime_runs() {
+        let runtime = WorkspaceRuntime::default();
+        let summary = runtime.summary();
+        assert!(summary.contains("TreeAgent runtime"));
+    }
+}

crates/treeagentc/Cargo.toml

@@ -0,0 +1,10 @@
+[package]
+name = "treeagentc"
+authors.workspace = true
+edition.workspace = true
+license.workspace = true
+version.workspace = true
+
+[dependencies]
+anyhow.workspace = true
+treeagent-model = { path = "../treeagent-model" }

crates/treeagentc/src/main.rs

@@ -0,0 +1,17 @@
+use treeagent_model::GraphSpec;
+
+fn main() {
+    let spec = GraphSpec::new("client");
+    println!("treeagentc targeting graph: {}", spec.name());
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn client_initializes_graph_spec() {
+        let spec = GraphSpec::new("client-spec");
+        assert_eq!(spec.name(), "client-spec");
+    }
+}

scripts/dev.sh

@@ -0,0 +1,18 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+ROOT_DIR="$(cd "$(dirname "$0")/.." && pwd)"
+cd "$ROOT_DIR"
+
+COMMAND=${1:-help}
+case "$COMMAND" in
+  build)
+    cargo build --workspace ;;
+  test)
+    cargo test --workspace ;;
+  check)
+    cargo check --workspace ;;
+  help|*)
+    echo "Usage: $0 {build|test|check}" >&2
+    exit 1 ;;
+esac

templates/graph-runner/README.md

@@ -0,0 +1,3 @@
+# Graph runner templates
+
+This directory is reserved for graph runner code generation templates used by the Rust workspace. Add renderer-specific template files here to drive code generation workflows.