feat: runtime engine with session management, tools, MCP, and compaction

rust/crates/runtime/src/lib.rs

@@ -0,0 +1,90 @@
+mod bash;
+mod bootstrap;
+mod compact;
+mod config;
+mod conversation;
+mod file_ops;
+mod hooks;
+mod json;
+mod mcp;
+mod mcp_client;
+mod mcp_stdio;
+mod oauth;
+mod permissions;
+mod prompt;
+mod remote;
+pub mod sandbox;
+mod session;
+mod usage;
+
+pub use bash::{execute_bash, BashCommandInput, BashCommandOutput};
+pub use bootstrap::{BootstrapPhase, BootstrapPlan};
+pub use compact::{
+    compact_session, estimate_session_tokens, format_compact_summary,
+    get_compact_continuation_message, should_compact, CompactionConfig, CompactionResult,
+};
+pub use config::{
+    ConfigEntry, ConfigError, ConfigLoader, ConfigSource, McpManagedProxyServerConfig,
+    McpConfigCollection, McpOAuthConfig, McpRemoteServerConfig, McpSdkServerConfig,
+    McpServerConfig, McpStdioServerConfig, McpTransport, McpWebSocketServerConfig, OAuthConfig,
+    ResolvedPermissionMode, RuntimeConfig, RuntimeFeatureConfig, RuntimeHookConfig,
+    RuntimePluginConfig, ScopedMcpServerConfig, CLAW_SETTINGS_SCHEMA_NAME,
+};
+pub use conversation::{
+    ApiClient, ApiRequest, AssistantEvent, ConversationRuntime, RuntimeError, StaticToolExecutor,
+    ToolError, ToolExecutor, TurnSummary,
+};
+pub use file_ops::{
+    edit_file, glob_search, grep_search, read_file, write_file, EditFileOutput, GlobSearchOutput,
+    GrepSearchInput, GrepSearchOutput, ReadFileOutput, StructuredPatchHunk, TextFilePayload,
+    WriteFileOutput,
+};
+pub use hooks::{HookEvent, HookRunResult, HookRunner};
+pub use mcp::{
+    mcp_server_signature, mcp_tool_name, mcp_tool_prefix, normalize_name_for_mcp,
+    scoped_mcp_config_hash, unwrap_ccr_proxy_url,
+};
+pub use mcp_client::{
+    McpManagedProxyTransport, McpClientAuth, McpClientBootstrap, McpClientTransport,
+    McpRemoteTransport, McpSdkTransport, McpStdioTransport,
+};
+pub use mcp_stdio::{
+    spawn_mcp_stdio_process, JsonRpcError, JsonRpcId, JsonRpcRequest, JsonRpcResponse,
+    ManagedMcpTool, McpInitializeClientInfo, McpInitializeParams, McpInitializeResult,
+    McpInitializeServerInfo, McpListResourcesParams, McpListResourcesResult, McpListToolsParams,
+    McpListToolsResult, McpReadResourceParams, McpReadResourceResult, McpResource,
+    McpResourceContents, McpServerManager, McpServerManagerError, McpStdioProcess, McpTool,
+    McpToolCallContent, McpToolCallParams, McpToolCallResult, UnsupportedMcpServer,
+};
+pub use oauth::{
+    clear_oauth_credentials, code_challenge_s256, credentials_path, generate_pkce_pair,
+    generate_state, load_oauth_credentials, loopback_redirect_uri, parse_oauth_callback_query,
+    parse_oauth_callback_request_target, save_oauth_credentials, OAuthAuthorizationRequest,
+    OAuthCallbackParams, OAuthRefreshRequest, OAuthTokenExchangeRequest, OAuthTokenSet,
+    PkceChallengeMethod, PkceCodePair,
+};
+pub use permissions::{
+    PermissionMode, PermissionOutcome, PermissionPolicy, PermissionPromptDecision,
+    PermissionPrompter, PermissionRequest,
+};
+pub use prompt::{
+    load_system_prompt, prepend_bullets, ContextFile, ProjectContext, PromptBuildError,
+    SystemPromptBuilder, FRONTIER_MODEL_NAME, SYSTEM_PROMPT_DYNAMIC_BOUNDARY,
+};
+pub use remote::{
+    inherited_upstream_proxy_env, no_proxy_list, read_token, upstream_proxy_ws_url,
+    RemoteSessionContext, UpstreamProxyBootstrap, UpstreamProxyState, DEFAULT_REMOTE_BASE_URL,
+    DEFAULT_SESSION_TOKEN_PATH, DEFAULT_SYSTEM_CA_BUNDLE, NO_PROXY_HOSTS, UPSTREAM_PROXY_ENV_KEYS,
+};
+pub use session::{ContentBlock, ConversationMessage, MessageRole, Session, SessionError};
+pub use usage::{
+    format_usd, pricing_for_model, ModelPricing, TokenUsage, UsageCostEstimate, UsageTracker,
+};
+
+#[cfg(test)]
+pub(crate) fn test_env_lock() -> std::sync::MutexGuard<'static, ()> {
+    static LOCK: std::sync::OnceLock<std::sync::Mutex<()>> = std::sync::OnceLock::new();
+    LOCK.get_or_init(|| std::sync::Mutex::new(()))
+        .lock()
+        .unwrap_or_else(std::sync::PoisonError::into_inner)
+}