a3s_code_core/config/
mod.rs

1//! Configuration module for A3S Code
2//!
3//! Provides configuration for:
4//! - LLM providers and models (defaultModel in "provider/model" format, providers)
5//! - Queue configuration (a3s-lane integration)
6//! - Search configuration (a3s-search integration)
7//! - Directories for dynamic skill and agent loading
8//!
9//! Configuration is loaded from ACL-compatible files or strings.
10//! Existing `.acl` config filenames are still accepted for compatibility.
11//! JSON support has been removed.
12
13mod acl_render;
14pub mod agent_dir;
15mod editor;
16mod loader;
17#[cfg(test)]
18mod loader_tests;
19mod provider;
20mod search;
21#[cfg(test)]
22mod tests;
23
24pub use agent_dir::{AgentDir, ScheduleSpec, ScriptToolLimits, ScriptToolSpec, ToolSpec};
25pub use editor::{rewrite_acl_sections, ConfigSection};
26pub use provider::{ModelConfig, ModelCost, ModelLimit, ModelModalities, ProviderConfig};
27pub use search::{
28    BrowserBackend, DocumentCacheConfig, DocumentOcrConfig, DocumentParserConfig, HeadlessConfig,
29    SearchConfig, SearchEngineConfig, SearchHealthConfig,
30};
31
32use crate::memory::MemoryConfig;
33use serde::{Deserialize, Serialize};
34use std::path::PathBuf;
35
36// ============================================================================
37// Storage Configuration
38// ============================================================================
39
40/// Session storage backend type
41#[derive(Debug, Clone, Default, Serialize, Deserialize, PartialEq, Eq, Hash)]
42#[serde(rename_all = "lowercase")]
43pub enum StorageBackend {
44    /// In-memory storage (no persistence)
45    Memory,
46    /// File-based storage (JSON files)
47    #[default]
48    File,
49    /// Custom external storage (Redis, PostgreSQL, etc.)
50    ///
51    /// Requires a `SessionStore` implementation registered on `AgentSession` options.
52    /// Use `storage_url` in config to pass connection details.
53    Custom,
54}
55
56// ============================================================================
57// Main Configuration
58// ============================================================================
59
60/// Automatic subagent delegation controls.
61#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
62#[serde(default, rename_all = "camelCase")]
63pub struct AutoDelegationConfig {
64    /// Enable runtime-driven automatic child agent delegation.
65    pub enabled: bool,
66    /// Allow automatic delegation to launch multiple child agents in parallel.
67    ///
68    /// Manual `parallel_task` calls remain available when this is false.
69    #[serde(alias = "auto_parallel")]
70    pub auto_parallel: bool,
71    /// Allow model-visible manual `task` and `parallel_task` delegation tools.
72    ///
73    /// Set this to false for cost control or debugging when child-agent tools
74    /// should be absent from the session tool surface. This is not a security
75    /// sandbox: the parent agent may still have other tools such as `bash`,
76    /// MCP tools, or skills.
77    #[serde(alias = "allow_manual_delegation")]
78    pub allow_manual_delegation: bool,
79    /// Minimum local confidence required to auto-delegate a child task.
80    pub min_confidence: f32,
81    /// Maximum number of automatic child tasks per user request.
82    pub max_tasks: usize,
83}
84
85impl Default for AutoDelegationConfig {
86    fn default() -> Self {
87        Self {
88            enabled: false,
89            auto_parallel: true,
90            allow_manual_delegation: true,
91            min_confidence: 0.72,
92            max_tasks: 4,
93        }
94    }
95}
96
97/// Optional platform endpoint used by hosts for account login.
98#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, Hash)]
99#[serde(rename_all = "camelCase")]
100pub struct OsConfig {
101    /// Base address of the configured platform instance.
102    #[serde(alias = "url", alias = "baseUrl", alias = "base_url")]
103    pub address: String,
104}
105
106/// Configuration for A3S Code
107#[derive(Debug, Clone, Serialize, Deserialize, Default)]
108#[serde(rename_all = "camelCase")]
109pub struct CodeConfig {
110    /// Default model in "provider/model" format (e.g., "anthropic/claude-sonnet-4-20250514")
111    #[serde(default, alias = "default_model")]
112    pub default_model: Option<String>,
113
114    /// Provider configurations
115    #[serde(default)]
116    pub providers: Vec<ProviderConfig>,
117
118    /// Session storage backend
119    #[serde(default)]
120    pub storage_backend: StorageBackend,
121
122    /// Sessions directory (for file backend)
123    #[serde(skip_serializing_if = "Option::is_none")]
124    pub sessions_dir: Option<PathBuf>,
125
126    /// Memory directory for the default file-backed memory store.
127    ///
128    /// If unset, sessions use `<workspace>/.a3s/memory` unless the host passes
129    /// an explicit memory store or file memory directory.
130    #[serde(default, alias = "memoryDir", skip_serializing_if = "Option::is_none")]
131    pub memory_dir: Option<PathBuf>,
132
133    /// Connection URL for custom storage backend (e.g., "redis://localhost:6379", "postgres://user:pass@localhost/a3s")
134    #[serde(default, skip_serializing_if = "Option::is_none")]
135    pub storage_url: Option<String>,
136
137    /// Directories to scan for skill files (*.md with tool definitions)
138    #[serde(default, alias = "skill_dirs")]
139    pub skill_dirs: Vec<PathBuf>,
140
141    /// Directories to scan for agent files (*.yaml or *.md)
142    #[serde(default, alias = "agent_dirs")]
143    pub agent_dirs: Vec<PathBuf>,
144
145    /// Maximum tool execution rounds per turn (default: 25)
146    #[serde(default, alias = "max_tool_rounds")]
147    pub max_tool_rounds: Option<usize>,
148
149    /// Maximum sibling branches/tools to run concurrently in bounded parallel fan-out paths.
150    #[serde(default, alias = "max_parallel_tasks")]
151    pub max_parallel_tasks: Option<usize>,
152
153    /// Global automatic child-agent delegation settings.
154    #[serde(default, alias = "auto_delegation")]
155    pub auto_delegation: AutoDelegationConfig,
156
157    /// Convenience global kill switch for automatic parallel child-agent fan-out.
158    ///
159    /// When set, overrides `auto_delegation.auto_parallel`.
160    #[serde(default, alias = "auto_parallel")]
161    pub auto_parallel: Option<bool>,
162
163    /// Thinking/reasoning budget in tokens
164    #[serde(default, alias = "thinking_budget")]
165    pub thinking_budget: Option<usize>,
166
167    /// Per-model API HTTP timeout in milliseconds. Separate from tool execution
168    /// timeouts so provider/network deadlines do not constrain local tools.
169    #[serde(
170        default,
171        alias = "llm_api_timeout_ms",
172        alias = "api_timeout_ms",
173        alias = "model_api_timeout_ms"
174    )]
175    pub llm_api_timeout_ms: Option<u64>,
176
177    /// Memory system configuration
178    #[serde(default, skip_serializing_if = "Option::is_none")]
179    pub memory: Option<MemoryConfig>,
180
181    /// Queue configuration (a3s-lane integration)
182    #[serde(default, skip_serializing_if = "Option::is_none")]
183    pub queue: Option<crate::queue::SessionQueueConfig>,
184
185    /// Search configuration (a3s-search integration)
186    #[serde(default, skip_serializing_if = "Option::is_none")]
187    pub search: Option<SearchConfig>,
188
189    /// Optional platform endpoint. When set, hosts may enable account login.
190    #[serde(default, skip_serializing_if = "Option::is_none")]
191    pub os: Option<OsConfig>,
192
193    /// Built-in document context extraction configuration.
194    #[serde(default, skip_serializing_if = "Option::is_none")]
195    pub document_parser: Option<DocumentParserConfig>,
196
197    /// MCP server configurations
198    #[serde(default, alias = "mcp_servers")]
199    pub mcp_servers: Vec<crate::mcp::McpServerConfig>,
200}
a3s_code_core/config/mod.rs

a3s_code_core/config/
mod.rs
