Struct EphemeralPollerProxy 

pub struct EphemeralPollerProxy { /* private fields */ }

Phase 96.E — daemon-side Poller impl that spawns a fresh subprocess per tick, drives the tick over stdio JSON-RPC, kills the child on reply. Used when the plugin manifest declares lifecycle = "ephemeral".

Wire shape (one JSON line each):

daemon → subprocess.stdin:  {"method":"poll_tick","params":{...TickRequest}}
subprocess → daemon.stdout: {"result":{...TickReply}} | {"error":{code,message}}

Limitations of V1 ephemeral:

• No reverse-RPC during tick. The subprocess receives one input (TickRequest) + writes one output (TickReply). For credential resolution or LLM invocation, use lifecycle = "long_lived".
• The subprocess inherits the daemon’s NEXO_BROKER_URL env so it can publish outbound directly if needed (Phase 92 pattern).

Implementations

impl EphemeralPollerProxy

pub fn new(kind: &'static str, handle: Arc<PluginPollerHandle>) -> Self

Wrap a (handle, kind) pair for spawn-per-tick dispatch. handle.entrypoint_command MUST be Some — the proxy uses it as the binary path.

Trait Implementations

impl Poller for EphemeralPollerProxy

fn kind(&self) -> &'static str

Discriminator used in YAML (kind: rss) and metrics.

fn description(&self) -> &'static str

Human label for agent pollers list. Defaults to empty.

fn tick<'life0, 'life1, 'async_trait>( &'life0 self, ctx: &'life1 PollContext, ) -> Pin<Box<dyn Future<Output = Result<TickAck, PollerError>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Run one tick. The runner persists the returned cursor and honors the interval hint; anything the poller wants to send outbound (broker publish, LLM call, credential lookup) goes through ctx.host.

fn validate(&self, _config: &Value) -> Result<(), PollerError>

Validate the per-job config JSON at boot. Errors fail loading of that job only; siblings keep going. Default: accept anything.

fn custom_tools(&self) -> Vec<CustomToolSpec>

Optional per-kind LLM tools registered alongside the generic pollers_* tools. Pollers without custom tools leave this empty (default).