[tool search] support namespaced deferred dynamic tools (#18413)

Deferred dynamic tools need to round-trip a namespace so a tool returned
by `tool_search` can be called through the same registry key that core
uses for dispatch.

This change adds namespace support for dynamic tool specs/calls,
persists it through app-server thread state, and routes dynamic tool
calls by full `ToolName` while still sending the app the leaf tool name.
Deferred dynamic tools must provide a namespace; non-deferred dynamic
tools may remain top-level.

It also introduces `LoadableToolSpec` as the shared
function-or-namespace Responses shape used by both `tool_search` output
and dynamic tool registration, so dynamic tools use the same wrapping
logic in both paths.

Validation:
- `cargo test -p codex-tools`
- `cargo test -p codex-core tool_search`

---------

Co-authored-by: Sayan Sisodiya <sayan@openai.com>
This commit is contained in:
pash-openai
2026-04-20 23:13:08 -07:00
committed by GitHub
parent 1dcea729d3
commit dc1a8f2190
60 changed files with 676 additions and 147 deletions

View File

@@ -15,8 +15,8 @@ use codex_protocol::models::ResponseInputItem;
use codex_protocol::models::SearchToolCallParams;
use codex_protocol::models::ShellToolCallParams;
use codex_protocol::models::function_call_output_content_items_to_text;
use codex_tools::LoadableToolSpec;
use codex_tools::ToolName;
use codex_tools::ToolSearchOutputTool;
use codex_utils_output_truncation::TruncationPolicy;
use codex_utils_output_truncation::formatted_truncate_text;
use codex_utils_string::take_bytes_at_char_boundary;
@@ -186,7 +186,7 @@ impl McpToolOutput {
#[derive(Clone)]
pub struct ToolSearchOutput {
pub tools: Vec<ToolSearchOutputTool>,
pub tools: Vec<LoadableToolSpec>,
}
impl ToolOutput for ToolSearchOutput {

View File

@@ -284,20 +284,18 @@ fn tool_search_payloads_roundtrip_as_tool_search_outputs() {
},
};
let response = ToolSearchOutput {
tools: vec![ToolSearchOutputTool::Function(
codex_tools::ResponsesApiTool {
name: "create_event".to_string(),
description: String::new(),
strict: false,
defer_loading: Some(true),
parameters: codex_tools::JsonSchema::object(
/*properties*/ Default::default(),
/*required*/ None,
/*additional_properties*/ None,
),
output_schema: None,
},
)],
tools: vec![LoadableToolSpec::Function(codex_tools::ResponsesApiTool {
name: "create_event".to_string(),
description: String::new(),
strict: false,
defer_loading: Some(true),
parameters: codex_tools::JsonSchema::object(
/*properties*/ Default::default(),
/*required*/ None,
/*additional_properties*/ None,
),
output_schema: None,
})],
}
.to_response_item("search-1", &payload);

View File

@@ -12,6 +12,7 @@ use codex_protocol::dynamic_tools::DynamicToolResponse;
use codex_protocol::models::FunctionCallOutputContentItem;
use codex_protocol::protocol::DynamicToolCallResponseEvent;
use codex_protocol::protocol::EventMsg;
use codex_tools::ToolName;
use serde_json::Value;
use std::time::Instant;
use tokio::sync::oneshot;
@@ -50,14 +51,13 @@ impl ToolHandler for DynamicToolHandler {
};
let args: Value = parse_arguments(&arguments)?;
let response =
request_dynamic_tool(&session, turn.as_ref(), call_id, tool_name.display(), args)
.await
.ok_or_else(|| {
FunctionCallError::RespondToModel(
"dynamic tool call was cancelled before receiving a response".to_string(),
)
})?;
let response = request_dynamic_tool(&session, turn.as_ref(), call_id, tool_name, args)
.await
.ok_or_else(|| {
FunctionCallError::RespondToModel(
"dynamic tool call was cancelled before receiving a response".to_string(),
)
})?;
let DynamicToolResponse {
content_items,
@@ -79,9 +79,11 @@ async fn request_dynamic_tool(
session: &Session,
turn_context: &TurnContext,
call_id: String,
tool: String,
tool_name: ToolName,
arguments: Value,
) -> Option<DynamicToolResponse> {
let namespace = tool_name.namespace;
let tool = tool_name.name;
let turn_id = turn_context.sub_id.clone();
let (tx_response, rx_response) = oneshot::channel();
let event_id = call_id.clone();
@@ -103,6 +105,7 @@ async fn request_dynamic_tool(
let event = EventMsg::DynamicToolCallRequest(DynamicToolCallRequest {
call_id: call_id.clone(),
turn_id: turn_id.clone(),
namespace: namespace.clone(),
tool: tool.clone(),
arguments: arguments.clone(),
});
@@ -113,6 +116,7 @@ async fn request_dynamic_tool(
Some(response) => EventMsg::DynamicToolCallResponse(DynamicToolCallResponseEvent {
call_id,
turn_id,
namespace,
tool,
arguments,
content_items: response.content_items.clone(),
@@ -123,6 +127,7 @@ async fn request_dynamic_tool(
None => EventMsg::DynamicToolCallResponse(DynamicToolCallResponseEvent {
call_id,
turn_id,
namespace,
tool,
arguments,
content_items: Vec::new(),

View File

@@ -9,9 +9,10 @@ use bm25::Document;
use bm25::Language;
use bm25::SearchEngine;
use bm25::SearchEngineBuilder;
use codex_tools::LoadableToolSpec;
use codex_tools::TOOL_SEARCH_DEFAULT_LIMIT;
use codex_tools::TOOL_SEARCH_TOOL_NAME;
use codex_tools::ToolSearchOutputTool;
use codex_tools::coalesce_loadable_tool_specs;
use std::collections::HashMap;
const COMPUTER_USE_MCP_SERVER_NAME: &str = "computer-use";
@@ -93,7 +94,7 @@ impl ToolSearchHandler {
query: &str,
limit: usize,
use_default_limit: bool,
) -> Result<Vec<ToolSearchOutputTool>, FunctionCallError> {
) -> Result<Vec<LoadableToolSpec>, FunctionCallError> {
let results = self.search_result_entries(query, limit, use_default_limit);
self.search_output_tools(results)
}
@@ -135,34 +136,10 @@ impl ToolSearchHandler {
fn search_output_tools<'a>(
&self,
results: impl IntoIterator<Item = &'a ToolSearchEntry>,
) -> Result<Vec<ToolSearchOutputTool>, FunctionCallError> {
let mut tools = Vec::new();
// Preserve search order: group namespace children, emit standalone tools directly.
for entry in results {
match &entry.output {
ToolSearchOutputTool::Function(tool) => {
tools.push(ToolSearchOutputTool::Function(tool.clone()));
}
ToolSearchOutputTool::Namespace(namespace) => {
if let Some(output) = tools.iter_mut().find_map(|tool| match tool {
ToolSearchOutputTool::Namespace(output)
if output.name == namespace.name =>
{
Some(output)
}
ToolSearchOutputTool::Namespace(_) | ToolSearchOutputTool::Function(_) => {
None
}
}) {
output.tools.extend(namespace.tools.clone());
} else {
tools.push(ToolSearchOutputTool::Namespace(namespace.clone()));
}
}
}
}
Ok(tools)
) -> Result<Vec<LoadableToolSpec>, FunctionCallError> {
Ok(coalesce_loadable_tool_specs(
results.into_iter().map(|entry| entry.output.clone()),
))
}
}
@@ -209,6 +186,7 @@ mod tests {
#[test]
fn mixed_search_results_coalesce_mcp_namespaces() {
let dynamic_tools = vec![DynamicToolSpec {
namespace: Some("codex_app".to_string()),
name: "automation_update".to_string(),
description: "Create, update, view, or delete recurring automations.".to_string(),
input_schema: serde_json::json!({
@@ -247,7 +225,7 @@ mod tests {
assert_eq!(
tools,
vec![
ToolSearchOutputTool::Namespace(ResponsesApiNamespace {
LoadableToolSpec::Namespace(ResponsesApiNamespace {
name: "mcp__calendar__".to_string(),
description: "Tools in the mcp__calendar__ namespace.".to_string(),
tools: vec![
@@ -277,21 +255,25 @@ mod tests {
}),
],
}),
ToolSearchOutputTool::Function(ResponsesApiTool {
name: "automation_update".to_string(),
description: "Create, update, view, or delete recurring automations."
.to_string(),
strict: false,
defer_loading: Some(true),
parameters: codex_tools::JsonSchema::object(
std::collections::BTreeMap::from([(
"mode".to_string(),
codex_tools::JsonSchema::string(/*description*/ None),
)]),
Some(vec!["mode".to_string()]),
Some(false.into()),
),
output_schema: None,
LoadableToolSpec::Namespace(ResponsesApiNamespace {
name: "codex_app".to_string(),
description: "Tools in the codex_app namespace.".to_string(),
tools: vec![ResponsesApiNamespaceTool::Function(ResponsesApiTool {
name: "automation_update".to_string(),
description: "Create, update, view, or delete recurring automations."
.to_string(),
strict: false,
defer_loading: Some(true),
parameters: codex_tools::JsonSchema::object(
std::collections::BTreeMap::from([(
"mode".to_string(),
codex_tools::JsonSchema::string(/*description*/ None),
)]),
Some(vec!["mode".to_string()]),
Some(false.into()),
),
output_schema: None,
})],
}),
],
);

View File

@@ -1619,7 +1619,11 @@ impl JsReplManager {
ResponsesApiNamespaceTool::Function(tool) => {
let tool_name =
ToolName::namespaced(namespace.name.clone(), tool.name.clone());
(tool_name.display() == req.tool_name).then_some(tool_name)
let code_mode_name =
codex_tools::code_mode_name_for_tool_name(&tool_name);
(code_mode_name == req.tool_name
|| tool_name.display() == req.tool_name)
.then_some(tool_name)
}
})
}

View File

@@ -1819,6 +1819,7 @@ async fn js_repl_emit_image_rejects_mixed_content() -> anyhow::Result<()> {
let (session, turn, rx_event) =
make_session_and_context_with_dynamic_tools_and_rx(vec![DynamicToolSpec {
namespace: None,
name: "inline_image".to_string(),
description: "Returns inline text and image content.".to_string(),
input_schema: serde_json::json!({
@@ -1918,6 +1919,7 @@ async fn js_repl_dynamic_tool_response_preserves_js_line_separator_text() -> any
] {
let (session, turn, rx_event) =
make_session_and_context_with_dynamic_tools_and_rx(vec![DynamicToolSpec {
namespace: None,
name: tool_name.to_string(),
description: description.to_string(),
input_schema: serde_json::json!({
@@ -1993,6 +1995,7 @@ async fn js_repl_can_call_hidden_dynamic_tools() -> anyhow::Result<()> {
let (session, turn, rx_event) =
make_session_and_context_with_dynamic_tools_and_rx(vec![DynamicToolSpec {
namespace: Some("codex_app".to_string()),
name: "hidden_dynamic_tool".to_string(),
description: "A hidden dynamic tool.".to_string(),
input_schema: serde_json::json!({
@@ -2012,7 +2015,7 @@ async fn js_repl_can_call_hidden_dynamic_tools() -> anyhow::Result<()> {
let tracker = Arc::new(tokio::sync::Mutex::new(TurnDiffTracker::default()));
let manager = turn.js_repl.manager().await?;
let code = r#"
const out = await codex.tool("hidden_dynamic_tool", { city: "Paris" });
const out = await codex.tool("codex_app_hidden_dynamic_tool", { city: "Paris" });
console.log(JSON.stringify(out));
"#;

View File

@@ -1,15 +1,15 @@
use codex_mcp::ToolInfo;
use codex_protocol::dynamic_tools::DynamicToolSpec;
use codex_tools::ToolSearchOutputTool;
use codex_tools::LoadableToolSpec;
use codex_tools::ToolSearchResultSource;
use codex_tools::dynamic_tool_to_responses_api_tool;
use codex_tools::tool_search_result_source_to_output_tool;
use codex_tools::dynamic_tool_to_loadable_tool_spec;
use codex_tools::tool_search_result_source_to_loadable_tool_spec;
use std::collections::HashMap;
#[derive(Clone)]
pub(crate) struct ToolSearchEntry {
pub(crate) search_text: String,
pub(crate) output: ToolSearchOutputTool,
pub(crate) output: LoadableToolSpec,
pub(crate) limit_bucket: Option<String>,
}
@@ -36,7 +36,7 @@ pub(crate) fn build_tool_search_entries(
}
let mut dynamic_tools = dynamic_tools.iter().collect::<Vec<_>>();
dynamic_tools.sort_by(|a, b| a.name.cmp(&b.name));
dynamic_tools.sort_by(|a, b| a.namespace.cmp(&b.namespace).then(a.name.cmp(&b.name)));
for tool in dynamic_tools {
match dynamic_tool_search_entry(tool) {
Ok(entry) => entries.push(entry),
@@ -55,7 +55,7 @@ pub(crate) fn build_tool_search_entries(
fn mcp_tool_search_entry(info: &ToolInfo) -> Result<ToolSearchEntry, serde_json::Error> {
Ok(ToolSearchEntry {
search_text: build_mcp_search_text(info),
output: tool_search_result_source_to_output_tool(ToolSearchResultSource {
output: tool_search_result_source_to_loadable_tool_spec(ToolSearchResultSource {
server_name: info.server_name.as_str(),
tool_namespace: info.callable_namespace.as_str(),
tool_name: info.callable_name.as_str(),
@@ -70,7 +70,7 @@ fn mcp_tool_search_entry(info: &ToolInfo) -> Result<ToolSearchEntry, serde_json:
fn dynamic_tool_search_entry(tool: &DynamicToolSpec) -> Result<ToolSearchEntry, serde_json::Error> {
Ok(ToolSearchEntry {
search_text: build_dynamic_search_text(tool),
output: ToolSearchOutputTool::Function(dynamic_tool_to_responses_api_tool(tool)?),
output: dynamic_tool_to_loadable_tool_spec(tool)?,
limit_bucket: None,
})
}
@@ -135,6 +135,10 @@ fn build_dynamic_search_text(tool: &DynamicToolSpec) -> String {
tool.description.clone(),
];
if let Some(namespace) = &tool.namespace {
parts.push(namespace.clone());
}
parts.extend(
tool.input_schema
.get("properties")