everruns_runtime/
backends.rs

1// Public backend contract for the embedded runtime.
2// Decision: runtime extends core's read-only traits with the minimal write
3// operations needed for seeding and message persistence. Trait upcasting +
4// blanket `Arc<T>: T` impls in core let the runtime forward to atoms without
5// shim wrappers.
6
7use crate::in_memory::{InMemorySessionStorageStore, InMemorySessionStore};
8use async_trait::async_trait;
9use everruns_core::agent::Agent;
10use everruns_core::error::Result;
11use everruns_core::events::Event;
12use everruns_core::harness::Harness;
13use everruns_core::in_memory::{
14    InMemoryAgentStore, InMemoryEventEmitter, InMemoryHarnessStore, InMemoryMessageRetriever,
15    InMemoryProviderStore,
16};
17use everruns_core::message::Message;
18use everruns_core::message_retriever::{InputMessage, MessageRetriever};
19use everruns_core::platform_store::PlatformStore;
20use everruns_core::session::Session;
21use everruns_core::session_task::SessionTaskRegistry;
22use everruns_core::traits::{
23    AgentStore, EventEmitter, HarnessStore, ProviderStore, ResolvedModel, SessionMutator,
24    SessionScheduleStore, SessionStorageStore, SessionStore, UserConnectionResolver,
25};
26use everruns_core::typed_id::SessionId;
27use std::sync::Arc;
28
29/// Factory producing a per-org [`SessionScheduleStore`]. Embedders that have a
30/// single global store can ignore the `org_id` argument and return the same
31/// `Arc` every time.
32pub type ScheduleStoreFactory = Arc<dyn Fn(i64) -> Arc<dyn SessionScheduleStore> + Send + Sync>;
33
34/// Factory producing a per-(org, session) [`PlatformStore`]. The session id is
35/// supplied because platform stores are scoped to the calling session for
36/// subagent spawning and platform-management tools.
37pub type PlatformStoreFactory = Arc<dyn Fn(i64, SessionId) -> Arc<dyn PlatformStore> + Send + Sync>;
38
39/// Agent store contract for runtime seeding and lookup.
40#[async_trait]
41pub trait RuntimeAgentStore: AgentStore + Send + Sync {
42    /// Insert or replace an agent definition.
43    async fn add_agent(&self, agent: Agent) -> Result<()>;
44}
45
46/// Harness store contract for runtime seeding and lookup.
47#[async_trait]
48pub trait RuntimeHarnessStore: HarnessStore + Send + Sync {
49    /// Insert or replace a harness definition.
50    async fn add_harness(&self, harness: Harness) -> Result<()>;
51}
52
53/// Session store contract for runtime seeding, lookup, and mutation.
54#[async_trait]
55pub trait RuntimeSessionStore: SessionStore + SessionMutator + Send + Sync {
56    /// Insert or replace a session definition.
57    async fn add_session(&self, session: Session) -> Result<()>;
58}
59
60/// Message store contract for runtime persistence and lookup.
61#[async_trait]
62pub trait RuntimeMessageStore: MessageRetriever + Send + Sync {
63    /// Store a new input message and return the generated message record.
64    async fn add_input_message(
65        &self,
66        session_id: SessionId,
67        input: InputMessage,
68    ) -> Result<Message>;
69
70    /// Persist an existing message record.
71    async fn store_message(&self, session_id: SessionId, message: Message) -> Result<()>;
72}
73
74/// Provider store contract for runtime lookup and default-model configuration.
75#[async_trait]
76pub trait RuntimeProviderStore: ProviderStore + Send + Sync {
77    /// Set the runtime default model.
78    async fn set_default_model(&self, model: ResolvedModel) -> Result<()>;
79}
80
81/// Event sink that supports emission and optional collection.
82///
83/// Every `EventBus` is an `EventEmitter`. Embedders that want to inspect
84/// emitted events override `collected_events`; production hosts inherit the
85/// no-op default.
86#[async_trait]
87pub trait EventBus: EventEmitter {
88    /// Return all collected events. Defaults to an empty `Vec` for buses
89    /// that do not retain events.
90    async fn collected_events(&self) -> Vec<Event> {
91        Vec::new()
92    }
93}
94
95#[async_trait]
96impl<T: EventBus + ?Sized> EventBus for Arc<T> {
97    async fn collected_events(&self) -> Vec<Event> {
98        (**self).collected_events().await
99    }
100}
101
102/// Non-filesystem backend bundle supplied to the embedded runtime.
103///
104/// Use this when you want the public runtime orchestration but your own store
105/// implementations instead of the built-in in-memory ones. Session filesystem
106/// selection is always resolved from `PlatformDefinition`.
107#[derive(Clone)]
108pub struct RuntimeBackends {
109    /// Harness definitions available to the runtime.
110    pub harness_store: Arc<dyn RuntimeHarnessStore>,
111    /// Agent definitions available to the runtime.
112    pub agent_store: Arc<dyn RuntimeAgentStore>,
113    /// Session records and mutable session metadata.
114    pub session_store: Arc<dyn RuntimeSessionStore>,
115    /// Conversation message persistence and retrieval.
116    pub message_store: Arc<dyn RuntimeMessageStore>,
117    /// Model/provider resolution and default-model configuration.
118    pub provider_store: Arc<dyn RuntimeProviderStore>,
119    /// Event sink (emit + optional collection).
120    pub event_bus: Arc<dyn EventBus>,
121    /// Session key/value + secret storage backend.
122    pub storage_store: Arc<dyn SessionStorageStore>,
123    /// Optional resolver for user connection tokens (e.g. GitHub, Daytona).
124    ///
125    /// When set, the runtime exposes it through `ToolContext.connection_resolver`
126    /// so connection-aware capabilities can resolve tokens lazily at tool time.
127    /// `None` (the default) leaves the resolver unset, matching prior behavior.
128    /// There is no in-memory default because a connection resolver implies a
129    /// real credential source the embedder must supply.
130    pub connection_resolver: Option<Arc<dyn UserConnectionResolver>>,
131    /// Optional session-task registry injected into the act path so background
132    /// tools, subagents, and monitors persist their lifecycle. `None` (the
133    /// default) leaves `RuntimeHostAdapter::session_task_registry` returning
134    /// `None`, matching prior in-memory behavior.
135    pub session_task_registry: Option<Arc<dyn SessionTaskRegistry>>,
136    /// Optional per-org schedule store factory. `None` (the default) leaves
137    /// `RuntimeHostAdapter::schedule_store` returning `None`.
138    pub schedule_store_factory: Option<ScheduleStoreFactory>,
139    /// Optional per-(org, session) platform store factory. `None` (the
140    /// default) leaves `RuntimeHostAdapter::platform_store` returning `None`.
141    pub platform_store_factory: Option<PlatformStoreFactory>,
142}
143
144impl RuntimeBackends {
145    /// Backend bundle with in-memory implementations for every store.
146    ///
147    /// Suitable for tests, examples, and the default runtime configuration.
148    /// Use the chainable `with_*` setters to override individual stores.
149    pub fn in_memory() -> Self {
150        let event_bus = Arc::new(InMemoryEventEmitter::new());
151        Self {
152            harness_store: Arc::new(InMemoryHarnessStore::new()),
153            agent_store: Arc::new(InMemoryAgentStore::new()),
154            session_store: Arc::new(InMemorySessionStore::new()),
155            message_store: Arc::new(InMemoryMessageRetriever::new()),
156            provider_store: Arc::new(InMemoryProviderStore::new()),
157            event_bus,
158            storage_store: Arc::new(InMemorySessionStorageStore::new()),
159            connection_resolver: None,
160            session_task_registry: None,
161            schedule_store_factory: None,
162            platform_store_factory: None,
163        }
164    }
165
166    pub fn with_harness_store(mut self, store: Arc<dyn RuntimeHarnessStore>) -> Self {
167        self.harness_store = store;
168        self
169    }
170
171    pub fn with_agent_store(mut self, store: Arc<dyn RuntimeAgentStore>) -> Self {
172        self.agent_store = store;
173        self
174    }
175
176    pub fn with_session_store(mut self, store: Arc<dyn RuntimeSessionStore>) -> Self {
177        self.session_store = store;
178        self
179    }
180
181    pub fn with_message_store(mut self, store: Arc<dyn RuntimeMessageStore>) -> Self {
182        self.message_store = store;
183        self
184    }
185
186    pub fn with_provider_store(mut self, store: Arc<dyn RuntimeProviderStore>) -> Self {
187        self.provider_store = store;
188        self
189    }
190
191    pub fn with_event_bus(mut self, bus: Arc<dyn EventBus>) -> Self {
192        self.event_bus = bus;
193        self
194    }
195
196    pub fn with_storage_store(mut self, store: Arc<dyn SessionStorageStore>) -> Self {
197        self.storage_store = store;
198        self
199    }
200
201    /// Supply a resolver for user connection tokens (e.g. GitHub, Daytona).
202    ///
203    /// The runtime forwards it into `ToolContext` so connection-aware
204    /// capabilities resolve tokens lazily at tool execution time.
205    pub fn with_connection_resolver(mut self, resolver: Arc<dyn UserConnectionResolver>) -> Self {
206        self.connection_resolver = Some(resolver);
207        self
208    }
209
210    /// Inject a session-task registry so background tools / subagents / monitors
211    /// persist their lifecycle through the act path. Additive: leaving this unset
212    /// keeps the prior behavior (the adapter returns `None`).
213    pub fn with_session_task_registry(mut self, registry: Arc<dyn SessionTaskRegistry>) -> Self {
214        self.session_task_registry = Some(registry);
215        self
216    }
217
218    /// Inject a per-org schedule store factory. The closure is invoked with the
219    /// internal org id each time the act path needs a schedule store.
220    pub fn with_schedule_store_factory(mut self, factory: ScheduleStoreFactory) -> Self {
221        self.schedule_store_factory = Some(factory);
222        self
223    }
224
225    /// Inject a per-(org, session) platform store factory. The closure is
226    /// invoked with the internal org id and the calling session id.
227    pub fn with_platform_store_factory(mut self, factory: PlatformStoreFactory) -> Self {
228        self.platform_store_factory = Some(factory);
229        self
230    }
231}
232
233#[async_trait]
234impl RuntimeAgentStore for InMemoryAgentStore {
235    async fn add_agent(&self, agent: Agent) -> Result<()> {
236        InMemoryAgentStore::add_agent(self, agent).await;
237        Ok(())
238    }
239}
240
241#[async_trait]
242impl RuntimeHarnessStore for InMemoryHarnessStore {
243    async fn add_harness(&self, harness: Harness) -> Result<()> {
244        InMemoryHarnessStore::add_harness(self, harness).await;
245        Ok(())
246    }
247}
248
249#[async_trait]
250impl RuntimeSessionStore for InMemorySessionStore {
251    async fn add_session(&self, session: Session) -> Result<()> {
252        InMemorySessionStore::add_session(self, session).await;
253        Ok(())
254    }
255}
256
257#[async_trait]
258impl RuntimeMessageStore for InMemoryMessageRetriever {
259    async fn add_input_message(
260        &self,
261        session_id: SessionId,
262        input: InputMessage,
263    ) -> Result<Message> {
264        self.add(session_id, input).await
265    }
266
267    async fn store_message(&self, session_id: SessionId, message: Message) -> Result<()> {
268        self.store(session_id, message).await
269    }
270}
271
272#[async_trait]
273impl RuntimeProviderStore for InMemoryProviderStore {
274    async fn set_default_model(&self, model: ResolvedModel) -> Result<()> {
275        InMemoryProviderStore::set_default_model(self, model).await;
276        Ok(())
277    }
278}
279
280#[async_trait]
281impl EventBus for InMemoryEventEmitter {
282    async fn collected_events(&self) -> Vec<Event> {
283        InMemoryEventEmitter::events(self).await
284    }
285}
everruns_runtime/backends.rs

everruns_runtime/
backends.rs
