Struct FilterToolCalls 

pub struct FilterToolCalls { /* private fields */ }

Drops whole tool calls by tool name.

Both halves of a call are removed — TOOL_CALL_START, its TOOL_CALL_ARGS, the TOOL_CALL_END, the TOOL_CALL_RESULT and any encrypted reasoning blob attached to it — so what reaches the client is a stream that never mentions the tool.

let mut filter = FilterToolCalls::deny(["secret_tool"]);
assert!(filter.transform(Event::tool_call_start("c1", "secret_tool")).is_empty());
assert!(filter.transform(Event::tool_call_args("c1", "{}")).is_empty());
assert_eq!(filter.transform(Event::tool_call_start("c2", "public")).len(), 1);

Implementations

impl FilterToolCalls

pub fn allow<I, T>(names: I) -> Self

where I: IntoIterator<Item = T>, T: Into<String>,

Passes only calls to the named tools.

pub fn deny<I, T>(names: I) -> Self

where I: IntoIterator<Item = T>, T: Into<String>,

Passes everything except calls to the named tools.

Trait Implementations

impl Clone for FilterToolCalls

fn clone(&self) -> FilterToolCalls

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FilterToolCalls

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl StreamTransformer for FilterToolCalls

fn transform(&mut self, event: Event) -> Vec<Event>

Rewrites one event into zero or more events.