Struct AppState 

pub struct AppState {
    pub tools: Vec<ToolInfo>,
    pub tool_registry: ToolRegistry,
    pub config: Config,
    pub provider: Arc<dyn ChatProvider>,
    pub sessions: Arc<RwLock<HashMap<String, SessionState>>>,
    pub event_channels: Arc<RwLock<HashMap<String, Sender<SseEvent>>>>,
    pub metrics: Arc<Metrics>,
    pub slash_commands: Arc<Vec<SlashCommandInfo>>,
    pub session_ttl_secs: u64,
    pub run_semaphore: Arc<Semaphore>,
    pub rate_limiter: RateLimiter,
    pub skills: Vec<Skill>,
}

Shared application state for the HTTP server.

Fields

tools: Vec<ToolInfo>

tool_registry: ToolRegistry

Live tool registry used to construct per-request and per-session AgentRuntimes. Without this, runtimes get an empty registry and every tool_call from the LLM resolves to “tool not found”.

config: Config

provider: Arc<dyn ChatProvider>

sessions: Arc<RwLock<HashMap<String, SessionState>>>

Session state keyed by session ID.

event_channels: Arc<RwLock<HashMap<String, Sender<SseEvent>>>>

Per-session SSE broadcast channels.

metrics: Arc<Metrics>

slash_commands: Arc<Vec<SlashCommandInfo>>

Goal-169: registered slash commands (built-in + skill-backed). Pre-built at startup for cheap GET /slash-commands responses.

session_ttl_secs: u64

run_semaphore: Arc<Semaphore>

Semaphore limiting concurrent agent runs. Acquired in run_agent and send_session_message before creating an AgentRuntime. When the configured max_concurrent_runs is 0 (unlimited), this is initialised with Semaphore::MAX_PERMITS.

rate_limiter: RateLimiter

Shared rate limiter for all API requests. Stored on AppState so the session reaper can prune idle token buckets.

skills: Vec<Skill>

Discovered skills for skill_index injection into the system prompt. Empty if no skills found. Goal-312.

Trait Implementations

impl Clone for AppState

fn clone(&self) -> Self

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.