Publish harness and TUI open-source

initial sync from the monorepo

crates/codegen/xai-grok-models/Cargo.toml

@@ -0,0 +1,13 @@
+[package]
+license = "Apache-2.0"
+name = "xai-grok-models"
+version = "0.1.0"
+edition.workspace = true
+description = "Default model IDs for the grok CLI, loaded from the embedded default_models.json."
+
+[dependencies]
+serde = { workspace = true, features = ["derive"] }
+serde_json = { workspace = true }
+
+[lints]
+workspace = true

crates/codegen/xai-grok-models/default_models.json

@@ -0,0 +1,18 @@
+{
+  "default": "grok-build",
+  "web_search": "grok-4.20-multi-agent",
+  "image_description": "grok-build",
+  "session_summary": "grok-build",
+  "models": [
+    {
+      "model": "grok-build",
+      "name": "Grok Build",
+      "description": "Best for advanced coding tasks",
+      "context_window": 500000,
+      "temperature": 0.7,
+      "top_p": 0.95,
+      "api_backend": "responses",
+      "supported_in_api": false
+    }
+  ]
+}

crates/codegen/xai-grok-models/src/lib.rs

@@ -0,0 +1,70 @@
+//! Default model IDs loaded from `default_models.json` at runtime.
+//! Edit that JSON file to change them.
+//!
+//! At runtime each model is resolved via:
+//!   CLI flag > ENV var > config.toml > remote settings > these defaults
+
+use std::sync::LazyLock;
+
+/// The raw JSON, embedded at compile time. Re-exported through the
+/// `xai_grok_shell::models` facade and consumed by `agent::config`, so it must
+/// be `pub` (was `pub(crate)` when this lived inside the shell crate).
+pub const DEFAULT_MODELS_JSON: &str = include_str!("../default_models.json");
+
+#[derive(serde::Deserialize)]
+struct DefaultModels {
+    default: String,
+    /// Falls back to `default` if not specified in JSON.
+    web_search: Option<String>,
+    /// Falls back to `default` if not specified in JSON.
+    image_description: Option<String>,
+    /// Falls back to `default` if not specified in JSON.
+    session_summary: Option<String>,
+    models: Vec<DefaultModelEntry>,
+}
+
+#[derive(serde::Deserialize)]
+struct DefaultModelEntry {
+    model: String,
+}
+
+static DEFAULTS: LazyLock<DefaultModels> = LazyLock::new(|| {
+    let defaults: DefaultModels = serde_json::from_str(DEFAULT_MODELS_JSON)
+        .expect("default_models.json: invalid JSON or missing 'default' field");
+
+    // Baked-in JSON — a mismatch here is a developer error, not a runtime condition.
+    let model_ids: Vec<&str> = defaults.models.iter().map(|m| m.model.as_str()).collect();
+    assert!(
+        model_ids.contains(&defaults.default.as_str()),
+        "default_models.json: 'default' is '{}' but 'models' array only has {model_ids:?}",
+        defaults.default,
+    );
+
+    defaults
+});
+
+/// Primary model for coding tasks and general fallback.
+pub fn default_model() -> &'static str {
+    &DEFAULTS.default
+}
+
+/// Model for web search tool synthesis. Falls back to default model.
+pub fn default_web_search_model() -> &'static str {
+    DEFAULTS.web_search.as_deref().unwrap_or(&DEFAULTS.default)
+}
+
+/// Model for image describe. Falls back to default model.
+pub fn default_image_description_model() -> &'static str {
+    DEFAULTS
+        .image_description
+        .as_deref()
+        .unwrap_or(&DEFAULTS.default)
+}
+
+/// Model for session title generation. Falls back to default model.
+pub fn default_session_summary_model() -> &'static str {
+    DEFAULTS
+        .session_summary
+        .as_deref()
+        .unwrap_or(&DEFAULTS.default)
+}