Files
llmx/codex-rs/core/src/tools/spec.rs
jif-oai 33d3ecbccc chore: refactor tool handling (#4510)
# Tool System Refactor

- Centralizes tool definitions and execution in `core/src/tools/*`:
specs (`spec.rs`), handlers (`handlers/*`), router (`router.rs`),
registry/dispatch (`registry.rs`), and shared context (`context.rs`).
One registry now builds the model-visible tool list and binds handlers.
- Router converts model responses to tool calls; Registry dispatches
with consistent telemetry via `codex-rs/otel` and unified error
handling. Function, Local Shell, MCP, and experimental `unified_exec`
all flow through this path; legacy shell aliases still work.
- Rationale: reduce per‑tool boilerplate, keep spec/handler in sync, and
make adding tools predictable and testable.

Example: `read_file`
- Spec: `core/src/tools/spec.rs` (see `create_read_file_tool`,
registered by `build_specs`).
- Handler: `core/src/tools/handlers/read_file.rs` (absolute `file_path`,
1‑indexed `offset`, `limit`, `L#: ` prefixes, safe truncation).
- E2E test: `core/tests/suite/read_file.rs` validates the tool returns
the requested lines.

## Next steps:
- Decompose `handle_container_exec_with_params` 
- Add parallel tool calls
2025-10-03 13:21:06 +01:00

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use crate::client_common::tools::ResponsesApiTool;
use crate::client_common::tools::ToolSpec;
use crate::model_family::ModelFamily;
use crate::tools::handlers::PLAN_TOOL;
use crate::tools::handlers::apply_patch::ApplyPatchToolType;
use crate::tools::handlers::apply_patch::create_apply_patch_freeform_tool;
use crate::tools::handlers::apply_patch::create_apply_patch_json_tool;
use crate::tools::registry::ToolRegistryBuilder;
use serde::Deserialize;
use serde::Serialize;
use serde_json::Value as JsonValue;
use serde_json::json;
use std::collections::BTreeMap;
use std::collections::HashMap;
#[derive(Debug, Clone)]
pub enum ConfigShellToolType {
Default,
Local,
Streamable,
}
#[derive(Debug, Clone)]
pub(crate) struct ToolsConfig {
pub shell_type: ConfigShellToolType,
pub plan_tool: bool,
pub apply_patch_tool_type: Option<ApplyPatchToolType>,
pub web_search_request: bool,
pub include_view_image_tool: bool,
pub experimental_unified_exec_tool: bool,
}
pub(crate) struct ToolsConfigParams<'a> {
pub(crate) model_family: &'a ModelFamily,
pub(crate) include_plan_tool: bool,
pub(crate) include_apply_patch_tool: bool,
pub(crate) include_web_search_request: bool,
pub(crate) use_streamable_shell_tool: bool,
pub(crate) include_view_image_tool: bool,
pub(crate) experimental_unified_exec_tool: bool,
}
impl ToolsConfig {
pub fn new(params: &ToolsConfigParams) -> Self {
let ToolsConfigParams {
model_family,
include_plan_tool,
include_apply_patch_tool,
include_web_search_request,
use_streamable_shell_tool,
include_view_image_tool,
experimental_unified_exec_tool,
} = params;
let shell_type = if *use_streamable_shell_tool {
ConfigShellToolType::Streamable
} else if model_family.uses_local_shell_tool {
ConfigShellToolType::Local
} else {
ConfigShellToolType::Default
};
let apply_patch_tool_type = match model_family.apply_patch_tool_type {
Some(ApplyPatchToolType::Freeform) => Some(ApplyPatchToolType::Freeform),
Some(ApplyPatchToolType::Function) => Some(ApplyPatchToolType::Function),
None => {
if *include_apply_patch_tool {
Some(ApplyPatchToolType::Freeform)
} else {
None
}
}
};
Self {
shell_type,
plan_tool: *include_plan_tool,
apply_patch_tool_type,
web_search_request: *include_web_search_request,
include_view_image_tool: *include_view_image_tool,
experimental_unified_exec_tool: *experimental_unified_exec_tool,
}
}
}
/// Generic JSONSchema subset needed for our tool definitions
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(tag = "type", rename_all = "lowercase")]
pub(crate) enum JsonSchema {
Boolean {
#[serde(skip_serializing_if = "Option::is_none")]
description: Option<String>,
},
String {
#[serde(skip_serializing_if = "Option::is_none")]
description: Option<String>,
},
/// MCP schema allows "number" | "integer" for Number
#[serde(alias = "integer")]
Number {
#[serde(skip_serializing_if = "Option::is_none")]
description: Option<String>,
},
Array {
items: Box<JsonSchema>,
#[serde(skip_serializing_if = "Option::is_none")]
description: Option<String>,
},
Object {
properties: BTreeMap<String, JsonSchema>,
#[serde(skip_serializing_if = "Option::is_none")]
required: Option<Vec<String>>,
#[serde(
rename = "additionalProperties",
skip_serializing_if = "Option::is_none"
)]
additional_properties: Option<AdditionalProperties>,
},
}
/// Whether additional properties are allowed, and if so, any required schema
#[derive(Debug, Clone, Serialize, Deserialize, PartialEq)]
#[serde(untagged)]
pub(crate) enum AdditionalProperties {
Boolean(bool),
Schema(Box<JsonSchema>),
}
impl From<bool> for AdditionalProperties {
fn from(b: bool) -> Self {
Self::Boolean(b)
}
}
impl From<JsonSchema> for AdditionalProperties {
fn from(s: JsonSchema) -> Self {
Self::Schema(Box::new(s))
}
}
fn create_unified_exec_tool() -> ToolSpec {
let mut properties = BTreeMap::new();
properties.insert(
"input".to_string(),
JsonSchema::Array {
items: Box::new(JsonSchema::String { description: None }),
description: Some(
"When no session_id is provided, treat the array as the command and arguments \
to launch. When session_id is set, concatenate the strings (in order) and write \
them to the session's stdin."
.to_string(),
),
},
);
properties.insert(
"session_id".to_string(),
JsonSchema::String {
description: Some(
"Identifier for an existing interactive session. If omitted, a new command \
is spawned."
.to_string(),
),
},
);
properties.insert(
"timeout_ms".to_string(),
JsonSchema::Number {
description: Some(
"Maximum time in milliseconds to wait for output after writing the input."
.to_string(),
),
},
);
ToolSpec::Function(ResponsesApiTool {
name: "unified_exec".to_string(),
description:
"Runs a command in a PTY. Provide a session_id to reuse an existing interactive session.".to_string(),
strict: false,
parameters: JsonSchema::Object {
properties,
required: Some(vec!["input".to_string()]),
additional_properties: Some(false.into()),
},
})
}
fn create_shell_tool() -> ToolSpec {
let mut properties = BTreeMap::new();
properties.insert(
"command".to_string(),
JsonSchema::Array {
items: Box::new(JsonSchema::String { description: None }),
description: Some("The command to execute".to_string()),
},
);
properties.insert(
"workdir".to_string(),
JsonSchema::String {
description: Some("The working directory to execute the command in".to_string()),
},
);
properties.insert(
"timeout_ms".to_string(),
JsonSchema::Number {
description: Some("The timeout for the command in milliseconds".to_string()),
},
);
properties.insert(
"with_escalated_permissions".to_string(),
JsonSchema::Boolean {
description: Some("Whether to request escalated permissions. Set to true if command needs to be run without sandbox restrictions".to_string()),
},
);
properties.insert(
"justification".to_string(),
JsonSchema::String {
description: Some("Only set if with_escalated_permissions is true. 1-sentence explanation of why we want to run this command.".to_string()),
},
);
ToolSpec::Function(ResponsesApiTool {
name: "shell".to_string(),
description: "Runs a shell command and returns its output.".to_string(),
strict: false,
parameters: JsonSchema::Object {
properties,
required: Some(vec!["command".to_string()]),
additional_properties: Some(false.into()),
},
})
}
fn create_view_image_tool() -> ToolSpec {
// Support only local filesystem path.
let mut properties = BTreeMap::new();
properties.insert(
"path".to_string(),
JsonSchema::String {
description: Some("Local filesystem path to an image file".to_string()),
},
);
ToolSpec::Function(ResponsesApiTool {
name: "view_image".to_string(),
description:
"Attach a local image (by filesystem path) to the conversation context for this turn."
.to_string(),
strict: false,
parameters: JsonSchema::Object {
properties,
required: Some(vec!["path".to_string()]),
additional_properties: Some(false.into()),
},
})
}
fn create_read_file_tool() -> ToolSpec {
let mut properties = BTreeMap::new();
properties.insert(
"file_path".to_string(),
JsonSchema::String {
description: Some("Absolute path to the file".to_string()),
},
);
properties.insert(
"offset".to_string(),
JsonSchema::Number {
description: Some(
"The line number to start reading from. Must be 1 or greater.".to_string(),
),
},
);
properties.insert(
"limit".to_string(),
JsonSchema::Number {
description: Some("The maximum number of lines to return.".to_string()),
},
);
ToolSpec::Function(ResponsesApiTool {
name: "read_file".to_string(),
description:
"Reads a local file with 1-indexed line numbers and returns up to the requested number of lines."
.to_string(),
strict: false,
parameters: JsonSchema::Object {
properties,
required: Some(vec!["file_path".to_string()]),
additional_properties: Some(false.into()),
},
})
}
/// TODO(dylan): deprecate once we get rid of json tool
#[derive(Serialize, Deserialize)]
pub(crate) struct ApplyPatchToolArgs {
pub(crate) input: String,
}
/// Returns JSON values that are compatible with Function Calling in the
/// Responses API:
/// https://platform.openai.com/docs/guides/function-calling?api-mode=responses
pub fn create_tools_json_for_responses_api(
tools: &[ToolSpec],
) -> crate::error::Result<Vec<serde_json::Value>> {
let mut tools_json = Vec::new();
for tool in tools {
let json = serde_json::to_value(tool)?;
tools_json.push(json);
}
Ok(tools_json)
}
/// Returns JSON values that are compatible with Function Calling in the
/// Chat Completions API:
/// https://platform.openai.com/docs/guides/function-calling?api-mode=chat
pub(crate) fn create_tools_json_for_chat_completions_api(
tools: &[ToolSpec],
) -> crate::error::Result<Vec<serde_json::Value>> {
// We start with the JSON for the Responses API and than rewrite it to match
// the chat completions tool call format.
let responses_api_tools_json = create_tools_json_for_responses_api(tools)?;
let tools_json = responses_api_tools_json
.into_iter()
.filter_map(|mut tool| {
if tool.get("type") != Some(&serde_json::Value::String("function".to_string())) {
return None;
}
if let Some(map) = tool.as_object_mut() {
// Remove "type" field as it is not needed in chat completions.
map.remove("type");
Some(json!({
"type": "function",
"function": map,
}))
} else {
None
}
})
.collect::<Vec<serde_json::Value>>();
Ok(tools_json)
}
pub(crate) fn mcp_tool_to_openai_tool(
fully_qualified_name: String,
tool: mcp_types::Tool,
) -> Result<ResponsesApiTool, serde_json::Error> {
let mcp_types::Tool {
description,
mut input_schema,
..
} = tool;
// OpenAI models mandate the "properties" field in the schema. The Agents
// SDK fixed this by inserting an empty object for "properties" if it is not
// already present https://github.com/openai/openai-agents-python/issues/449
// so here we do the same.
if input_schema.properties.is_none() {
input_schema.properties = Some(serde_json::Value::Object(serde_json::Map::new()));
}
// Serialize to a raw JSON value so we can sanitize schemas coming from MCP
// servers. Some servers omit the top-level or nested `type` in JSON
// Schemas (e.g. using enum/anyOf), or use unsupported variants like
// `integer`. Our internal JsonSchema is a small subset and requires
// `type`, so we coerce/sanitize here for compatibility.
let mut serialized_input_schema = serde_json::to_value(input_schema)?;
sanitize_json_schema(&mut serialized_input_schema);
let input_schema = serde_json::from_value::<JsonSchema>(serialized_input_schema)?;
Ok(ResponsesApiTool {
name: fully_qualified_name,
description: description.unwrap_or_default(),
strict: false,
parameters: input_schema,
})
}
/// Sanitize a JSON Schema (as serde_json::Value) so it can fit our limited
/// JsonSchema enum. This function:
/// - Ensures every schema object has a "type". If missing, infers it from
/// common keywords (properties => object, items => array, enum/const/format => string)
/// and otherwise defaults to "string".
/// - Fills required child fields (e.g. array items, object properties) with
/// permissive defaults when absent.
fn sanitize_json_schema(value: &mut JsonValue) {
match value {
JsonValue::Bool(_) => {
// JSON Schema boolean form: true/false. Coerce to an accept-all string.
*value = json!({ "type": "string" });
}
JsonValue::Array(arr) => {
for v in arr.iter_mut() {
sanitize_json_schema(v);
}
}
JsonValue::Object(map) => {
// First, recursively sanitize known nested schema holders
if let Some(props) = map.get_mut("properties")
&& let Some(props_map) = props.as_object_mut()
{
for (_k, v) in props_map.iter_mut() {
sanitize_json_schema(v);
}
}
if let Some(items) = map.get_mut("items") {
sanitize_json_schema(items);
}
// Some schemas use oneOf/anyOf/allOf - sanitize their entries
for combiner in ["oneOf", "anyOf", "allOf", "prefixItems"] {
if let Some(v) = map.get_mut(combiner) {
sanitize_json_schema(v);
}
}
// Normalize/ensure type
let mut ty = map.get("type").and_then(|v| v.as_str()).map(str::to_string);
// If type is an array (union), pick first supported; else leave to inference
if ty.is_none()
&& let Some(JsonValue::Array(types)) = map.get("type")
{
for t in types {
if let Some(tt) = t.as_str()
&& matches!(
tt,
"object" | "array" | "string" | "number" | "integer" | "boolean"
)
{
ty = Some(tt.to_string());
break;
}
}
}
// Infer type if still missing
if ty.is_none() {
if map.contains_key("properties")
|| map.contains_key("required")
|| map.contains_key("additionalProperties")
{
ty = Some("object".to_string());
} else if map.contains_key("items") || map.contains_key("prefixItems") {
ty = Some("array".to_string());
} else if map.contains_key("enum")
|| map.contains_key("const")
|| map.contains_key("format")
{
ty = Some("string".to_string());
} else if map.contains_key("minimum")
|| map.contains_key("maximum")
|| map.contains_key("exclusiveMinimum")
|| map.contains_key("exclusiveMaximum")
|| map.contains_key("multipleOf")
{
ty = Some("number".to_string());
}
}
// If we still couldn't infer, default to string
let ty = ty.unwrap_or_else(|| "string".to_string());
map.insert("type".to_string(), JsonValue::String(ty.to_string()));
// Ensure object schemas have properties map
if ty == "object" {
if !map.contains_key("properties") {
map.insert(
"properties".to_string(),
JsonValue::Object(serde_json::Map::new()),
);
}
// If additionalProperties is an object schema, sanitize it too.
// Leave booleans as-is, since JSON Schema allows boolean here.
if let Some(ap) = map.get_mut("additionalProperties") {
let is_bool = matches!(ap, JsonValue::Bool(_));
if !is_bool {
sanitize_json_schema(ap);
}
}
}
// Ensure array schemas have items
if ty == "array" && !map.contains_key("items") {
map.insert("items".to_string(), json!({ "type": "string" }));
}
}
_ => {}
}
}
/// Builds the tool registry builder while collecting tool specs for later serialization.
pub(crate) fn build_specs(
config: &ToolsConfig,
mcp_tools: Option<HashMap<String, mcp_types::Tool>>,
) -> ToolRegistryBuilder {
use crate::exec_command::EXEC_COMMAND_TOOL_NAME;
use crate::exec_command::WRITE_STDIN_TOOL_NAME;
use crate::exec_command::create_exec_command_tool_for_responses_api;
use crate::exec_command::create_write_stdin_tool_for_responses_api;
use crate::tools::handlers::ApplyPatchHandler;
use crate::tools::handlers::ExecStreamHandler;
use crate::tools::handlers::McpHandler;
use crate::tools::handlers::PlanHandler;
use crate::tools::handlers::ReadFileHandler;
use crate::tools::handlers::ShellHandler;
use crate::tools::handlers::UnifiedExecHandler;
use crate::tools::handlers::ViewImageHandler;
use std::sync::Arc;
let mut builder = ToolRegistryBuilder::new();
let shell_handler = Arc::new(ShellHandler);
let exec_stream_handler = Arc::new(ExecStreamHandler);
let unified_exec_handler = Arc::new(UnifiedExecHandler);
let plan_handler = Arc::new(PlanHandler);
let read_file_handler = Arc::new(ReadFileHandler);
let apply_patch_handler = Arc::new(ApplyPatchHandler);
let view_image_handler = Arc::new(ViewImageHandler);
let mcp_handler = Arc::new(McpHandler);
if config.experimental_unified_exec_tool {
builder.push_spec(create_unified_exec_tool());
builder.register_handler("unified_exec", unified_exec_handler);
} else {
match &config.shell_type {
ConfigShellToolType::Default => {
builder.push_spec(create_shell_tool());
}
ConfigShellToolType::Local => {
builder.push_spec(ToolSpec::LocalShell {});
}
ConfigShellToolType::Streamable => {
builder.push_spec(ToolSpec::Function(
create_exec_command_tool_for_responses_api(),
));
builder.push_spec(ToolSpec::Function(
create_write_stdin_tool_for_responses_api(),
));
builder.register_handler(EXEC_COMMAND_TOOL_NAME, exec_stream_handler.clone());
builder.register_handler(WRITE_STDIN_TOOL_NAME, exec_stream_handler);
}
}
}
// Always register shell aliases so older prompts remain compatible.
builder.register_handler("shell", shell_handler.clone());
builder.register_handler("container.exec", shell_handler.clone());
builder.register_handler("local_shell", shell_handler);
if config.plan_tool {
builder.push_spec(PLAN_TOOL.clone());
builder.register_handler("update_plan", plan_handler);
}
if let Some(apply_patch_tool_type) = &config.apply_patch_tool_type {
match apply_patch_tool_type {
ApplyPatchToolType::Freeform => {
builder.push_spec(create_apply_patch_freeform_tool());
}
ApplyPatchToolType::Function => {
builder.push_spec(create_apply_patch_json_tool());
}
}
builder.register_handler("apply_patch", apply_patch_handler);
}
builder.push_spec(create_read_file_tool());
builder.register_handler("read_file", read_file_handler);
if config.web_search_request {
builder.push_spec(ToolSpec::WebSearch {});
}
if config.include_view_image_tool {
builder.push_spec(create_view_image_tool());
builder.register_handler("view_image", view_image_handler);
}
if let Some(mcp_tools) = mcp_tools {
let mut entries: Vec<(String, mcp_types::Tool)> = mcp_tools.into_iter().collect();
entries.sort_by(|a, b| a.0.cmp(&b.0));
for (name, tool) in entries.into_iter() {
match mcp_tool_to_openai_tool(name.clone(), tool.clone()) {
Ok(converted_tool) => {
builder.push_spec(ToolSpec::Function(converted_tool));
builder.register_handler(name, mcp_handler.clone());
}
Err(e) => {
tracing::error!("Failed to convert {name:?} MCP tool to OpenAI tool: {e:?}");
}
}
}
}
builder
}
#[cfg(test)]
mod tests {
use crate::client_common::tools::FreeformTool;
use crate::model_family::find_family_for_model;
use mcp_types::ToolInputSchema;
use pretty_assertions::assert_eq;
use super::*;
fn assert_eq_tool_names(tools: &[ToolSpec], expected_names: &[&str]) {
let tool_names = tools
.iter()
.map(|tool| match tool {
ToolSpec::Function(ResponsesApiTool { name, .. }) => name,
ToolSpec::LocalShell {} => "local_shell",
ToolSpec::WebSearch {} => "web_search",
ToolSpec::Freeform(FreeformTool { name, .. }) => name,
})
.collect::<Vec<_>>();
assert_eq!(
tool_names.len(),
expected_names.len(),
"tool_name mismatch, {tool_names:?}, {expected_names:?}",
);
for (name, expected_name) in tool_names.iter().zip(expected_names.iter()) {
assert_eq!(
name, expected_name,
"tool_name mismatch, {name:?}, {expected_name:?}"
);
}
}
#[test]
fn test_build_specs() {
let model_family = find_family_for_model("codex-mini-latest")
.expect("codex-mini-latest should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: true,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(&config, Some(HashMap::new())).build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"update_plan",
"read_file",
"web_search",
"view_image",
],
);
}
#[test]
fn test_build_specs_default_shell() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: true,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(&config, Some(HashMap::new())).build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"update_plan",
"read_file",
"web_search",
"view_image",
],
);
}
#[test]
fn test_build_specs_mcp_tools() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: false,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(
&config,
Some(HashMap::from([(
"test_server/do_something_cool".to_string(),
mcp_types::Tool {
name: "do_something_cool".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({
"string_argument": {
"type": "string",
},
"number_argument": {
"type": "number",
},
"object_argument": {
"type": "object",
"properties": {
"string_property": { "type": "string" },
"number_property": { "type": "number" },
},
"required": [
"string_property",
"number_property",
],
"additionalProperties": Some(false),
},
})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("Do something cool".to_string()),
},
)])),
)
.build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"read_file",
"web_search",
"view_image",
"test_server/do_something_cool",
],
);
assert_eq!(
tools[4],
ToolSpec::Function(ResponsesApiTool {
name: "test_server/do_something_cool".to_string(),
parameters: JsonSchema::Object {
properties: BTreeMap::from([
(
"string_argument".to_string(),
JsonSchema::String { description: None }
),
(
"number_argument".to_string(),
JsonSchema::Number { description: None }
),
(
"object_argument".to_string(),
JsonSchema::Object {
properties: BTreeMap::from([
(
"string_property".to_string(),
JsonSchema::String { description: None }
),
(
"number_property".to_string(),
JsonSchema::Number { description: None }
),
]),
required: Some(vec![
"string_property".to_string(),
"number_property".to_string(),
]),
additional_properties: Some(false.into()),
},
),
]),
required: None,
additional_properties: None,
},
description: "Do something cool".to_string(),
strict: false,
})
);
}
#[test]
fn test_build_specs_mcp_tools_sorted_by_name() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: false,
include_apply_patch_tool: false,
include_web_search_request: false,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
// Intentionally construct a map with keys that would sort alphabetically.
let tools_map: HashMap<String, mcp_types::Tool> = HashMap::from([
(
"test_server/do".to_string(),
mcp_types::Tool {
name: "a".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("a".to_string()),
},
),
(
"test_server/something".to_string(),
mcp_types::Tool {
name: "b".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("b".to_string()),
},
),
(
"test_server/cool".to_string(),
mcp_types::Tool {
name: "c".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("c".to_string()),
},
),
]);
let (tools, _) = build_specs(&config, Some(tools_map)).build();
// Expect unified_exec first, followed by MCP tools sorted by fully-qualified name.
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"read_file",
"view_image",
"test_server/cool",
"test_server/do",
"test_server/something",
],
);
}
#[test]
fn test_mcp_tool_property_missing_type_defaults_to_string() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: false,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(
&config,
Some(HashMap::from([(
"dash/search".to_string(),
mcp_types::Tool {
name: "search".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({
"query": {
"description": "search query"
}
})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("Search docs".to_string()),
},
)])),
)
.build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"read_file",
"web_search",
"view_image",
"dash/search",
],
);
assert_eq!(
tools[4],
ToolSpec::Function(ResponsesApiTool {
name: "dash/search".to_string(),
parameters: JsonSchema::Object {
properties: BTreeMap::from([(
"query".to_string(),
JsonSchema::String {
description: Some("search query".to_string())
}
)]),
required: None,
additional_properties: None,
},
description: "Search docs".to_string(),
strict: false,
})
);
}
#[test]
fn test_mcp_tool_integer_normalized_to_number() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: false,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(
&config,
Some(HashMap::from([(
"dash/paginate".to_string(),
mcp_types::Tool {
name: "paginate".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({
"page": { "type": "integer" }
})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("Pagination".to_string()),
},
)])),
)
.build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"read_file",
"web_search",
"view_image",
"dash/paginate",
],
);
assert_eq!(
tools[4],
ToolSpec::Function(ResponsesApiTool {
name: "dash/paginate".to_string(),
parameters: JsonSchema::Object {
properties: BTreeMap::from([(
"page".to_string(),
JsonSchema::Number { description: None }
)]),
required: None,
additional_properties: None,
},
description: "Pagination".to_string(),
strict: false,
})
);
}
#[test]
fn test_mcp_tool_array_without_items_gets_default_string_items() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: false,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(
&config,
Some(HashMap::from([(
"dash/tags".to_string(),
mcp_types::Tool {
name: "tags".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({
"tags": { "type": "array" }
})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("Tags".to_string()),
},
)])),
)
.build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"read_file",
"web_search",
"view_image",
"dash/tags",
],
);
assert_eq!(
tools[4],
ToolSpec::Function(ResponsesApiTool {
name: "dash/tags".to_string(),
parameters: JsonSchema::Object {
properties: BTreeMap::from([(
"tags".to_string(),
JsonSchema::Array {
items: Box::new(JsonSchema::String { description: None }),
description: None
}
)]),
required: None,
additional_properties: None,
},
description: "Tags".to_string(),
strict: false,
})
);
}
#[test]
fn test_mcp_tool_anyof_defaults_to_string() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: false,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(
&config,
Some(HashMap::from([(
"dash/value".to_string(),
mcp_types::Tool {
name: "value".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({
"value": { "anyOf": [ { "type": "string" }, { "type": "number" } ] }
})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("AnyOf Value".to_string()),
},
)])),
)
.build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"read_file",
"web_search",
"view_image",
"dash/value",
],
);
assert_eq!(
tools[4],
ToolSpec::Function(ResponsesApiTool {
name: "dash/value".to_string(),
parameters: JsonSchema::Object {
properties: BTreeMap::from([(
"value".to_string(),
JsonSchema::String { description: None }
)]),
required: None,
additional_properties: None,
},
description: "AnyOf Value".to_string(),
strict: false,
})
);
}
#[test]
fn test_shell_tool() {
let tool = super::create_shell_tool();
let ToolSpec::Function(ResponsesApiTool {
description, name, ..
}) = &tool
else {
panic!("expected function tool");
};
assert_eq!(name, "shell");
let expected = "Runs a shell command and returns its output.";
assert_eq!(description, expected);
}
#[test]
fn test_get_openai_tools_mcp_tools_with_additional_properties_schema() {
let model_family = find_family_for_model("o3").expect("o3 should be a valid model family");
let config = ToolsConfig::new(&ToolsConfigParams {
model_family: &model_family,
include_plan_tool: false,
include_apply_patch_tool: false,
include_web_search_request: true,
use_streamable_shell_tool: false,
include_view_image_tool: true,
experimental_unified_exec_tool: true,
});
let (tools, _) = build_specs(
&config,
Some(HashMap::from([(
"test_server/do_something_cool".to_string(),
mcp_types::Tool {
name: "do_something_cool".to_string(),
input_schema: ToolInputSchema {
properties: Some(serde_json::json!({
"string_argument": {
"type": "string",
},
"number_argument": {
"type": "number",
},
"object_argument": {
"type": "object",
"properties": {
"string_property": { "type": "string" },
"number_property": { "type": "number" },
},
"required": [
"string_property",
"number_property",
],
"additionalProperties": {
"type": "object",
"properties": {
"addtl_prop": { "type": "string" },
},
"required": [
"addtl_prop",
],
"additionalProperties": false,
},
},
})),
required: None,
r#type: "object".to_string(),
},
output_schema: None,
title: None,
annotations: None,
description: Some("Do something cool".to_string()),
},
)])),
)
.build();
assert_eq_tool_names(
&tools,
&[
"unified_exec",
"read_file",
"web_search",
"view_image",
"test_server/do_something_cool",
],
);
assert_eq!(
tools[4],
ToolSpec::Function(ResponsesApiTool {
name: "test_server/do_something_cool".to_string(),
parameters: JsonSchema::Object {
properties: BTreeMap::from([
(
"string_argument".to_string(),
JsonSchema::String { description: None }
),
(
"number_argument".to_string(),
JsonSchema::Number { description: None }
),
(
"object_argument".to_string(),
JsonSchema::Object {
properties: BTreeMap::from([
(
"string_property".to_string(),
JsonSchema::String { description: None }
),
(
"number_property".to_string(),
JsonSchema::Number { description: None }
),
]),
required: Some(vec![
"string_property".to_string(),
"number_property".to_string(),
]),
additional_properties: Some(
JsonSchema::Object {
properties: BTreeMap::from([(
"addtl_prop".to_string(),
JsonSchema::String { description: None }
),]),
required: Some(vec!["addtl_prop".to_string(),]),
additional_properties: Some(false.into()),
}
.into()
),
},
),
]),
required: None,
additional_properties: None,
},
description: "Do something cool".to_string(),
strict: false,
})
);
}
}