feat: support multi agent for ts #300
Conversation
🦋 Changeset detectedLatest commit: d69cd42 The changes in this PR will be included in the next version bump. This PR includes changesets to release 1 package
Not sure what this means? Click here to learn what changesets are. Click here if you're a maintainer who wants to add another changeset to this PR |
WalkthroughA new multi-agent template has been introduced for the Express framework, enhancing the management of multiple agents within applications. This update includes comprehensive documentation, new configuration files, and the implementation of various agent functionalities, such as chat handling and agent creation. The changes also involve modifications to existing functions for improved template handling and the introduction of new files for project setup, including ESLint and Prettier configurations. Changes
Possibly related PRs
Thank you for using CodeRabbit. We offer it for free to the OSS community and would appreciate your support in helping us grow. If you find it useful, would you consider giving us a shout-out on your favorite social media? TipsChatThere are 3 ways to chat with CodeRabbit:
Note: Be mindful of the bot's finite context window. It's strongly recommended to break down tasks such as reading entire modules into smaller chunks. For a focused discussion, use review comments to chat about specific files and their changes, instead of using the PR comments. CodeRabbit Commands (Invoked using PR comments)
Other keywords and placeholders
CodeRabbit Configuration File (
|
templates/types/multiagent/express/src/controllers/engine/chat.ts
Outdated
Show resolved
Hide resolved
templates/types/multiagent/express/src/controllers/engine/queryFilter.ts
Outdated
Show resolved
Hide resolved
templates/types/multiagent/express/src/controllers/engine/settings.ts
Outdated
Show resolved
Hide resolved
![coderabbitai[bot]](https://avatars.githubusercontent.com/in/347564?s=60&v=4){kind=small}
There was a problem hiding this comment.
Actionable comments posted: 18
Outside diff range and nitpick comments (18)
templates/types/multiagent/express/tsconfig.json (1)
7-7: Consider removing theskipLibCheckoption.The
skipLibCheckoption skips type checking of declaration files. While this can speed up compilation, it may cause type errors in dependencies to be missed.Consider removing the
skipLibCheckoption to ensure type errors in dependencies are caught:- "skipLibCheck": true,templates/types/multiagent/express/README-template.md (10)
7-9: Specify the language for the code block.To improve the rendering of the code block in Markdown, specify the language as
bash.Apply this diff:
-``` +```bash npm install<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 7-7: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `13-15`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash npm run generate<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 13-13: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `19-21`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash npm run dev<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 19-19: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `30-34`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash curl --location 'localhost:8000/api/chat' \ --header 'Content-Type: application/json' \ --data '{ "messages": [{ "role": "user", "content": "Hello" }] }'<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 30-30: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `38-42`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash curl --location 'localhost:8000/api/chat/request' \ --header 'Content-Type: application/json' \ --data '{ "messages": [{ "role": "user", "content": "Hello" }] }'<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 38-38: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `51-53`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash npm run build<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 51-51: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `57-59`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash NODE_ENV=production npm run start<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 57-57: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `67-69`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash docker build -t <your_backend_image_name> .<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 67-67: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `75-83`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash docker run --rm \ -v $(pwd)/.env:/app/.env \ # Use ENV variables and configuration from your file-system -v $(pwd)/config:/app/config \ -v $(pwd)/data:/app/data \ -v $(pwd)/cache:/app/cache \ # Use your file system to store the vector database <your_backend_image_name> npm run generate<details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 75-75: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> --- `87-94`: **Specify the language for the code block.** To improve the rendering of the code block in Markdown, specify the language as `bash`. Apply this diff: ```diff -``` +```bash docker run \ -v $(pwd)/.env:/app/.env \ # Use ENV variables and configuration from your file-system -v $(pwd)/config:/app/config \ -v $(pwd)/cache:/app/cache \ # Use your file system to store the vector database -p 8000:8000 \ <your_backend_image_name><details> <summary>Tools</summary> <details> <summary>Markdownlint</summary><blockquote> 87-87: null Fenced code blocks should have a language specified (MD040, fenced-code-language) </blockquote></details> </details> </blockquote></details> <details> <summary>helpers/typescript.ts (1)</summary><blockquote> `36-40`: **LGTM!** The changes to the logic for determining the `type` variable based on the `template` and `framework` parameters look good. The default value is explicitly set to "streaming", and the condition to set it to "multiagent" is more specific now. Consider adding a comment to clarify the logic and the specific case when "multiagent" is used. For example: ```typescript // Set the default type to "streaming" let type = "streaming"; // Use the "multiagent" type only when the template is "multiagent" and the framework is "express" if (template === "multiagent" && framework === "express") { type = "multiagent"; }templates/types/multiagent/express/src/controllers/chat.controller.ts (1)
9-9: Consider renamingvercelStreamDatafor clarityThe variable name
vercelStreamDatamay imply specificity to Vercel. If the code is intended to be platform-agnostic, consider renaming it tostreamDatafor better clarity.Apply the following diff and update all references accordingly:
- const vercelStreamData = new StreamData(); + const streamData = new StreamData();templates/types/multiagent/express/src/workflow/stream.ts (2)
31-33: Add error handling for unexpectedvalue.datatypes.If
value.datais not an instance ofAgentRunResult, the code currently does nothing. Adding error handling or logging can help identify issues during runtime and improve the robustness of your stream processing.You could log a warning or throw an error:
if (value.data instanceof AgentRunResult) { // existing code + } else { + console.warn('Received unexpected data type:', value.data); + controller.error(new Error('Unexpected data type in generator output')); }
35-53: Add error handling for unexpectedevent.datatypes.Within the
for awaitloop, ifevent.datais not an instance ofFunctionCallingStreamResult, it is ignored. Logging unexpected event types can help with debugging and ensure that all data is correctly processed.For example:
if (event.data instanceof FunctionCallingStreamResult) { // existing code + } else { + console.warn('Received unexpected event data type:', event.data); }templates/types/multiagent/express/src/workflow/agents.ts (2)
44-45: Enhance the system prompt for clarity and emphasis on factual accuracyConsider rephrasing the system prompt to more clearly instruct the writer agent to use accurate information and avoid fabrication.
Suggested change:
- "You are an expert in writing blog posts. You are given a task to write a blog post. Don't make up any information yourself.", + "You are an expert in writing blog posts. You are tasked with writing a blog post. Ensure all information is accurate and based on verified sources; do not fabricate any content.",
57-58: Clarify the system prompt for the reviewer agent to avoid ambiguityThe current system prompt may be ambiguous regarding the expected response. Clarify that the reviewer should return
'The post is good.'only if the post meets all publishing standards without any issues.Suggested change:
- "You are an expert in reviewing blog posts. You are given a task to review a blog post. Review the post for logical inconsistencies, ask critical questions, and provide suggestions for improvement. Furthermore, proofread the post for grammar and spelling errors. Only if the post is good enough for publishing, then you MUST return 'The post is good.'. In all other cases return your review.", + "You are an expert in reviewing blog posts. Your task is to thoroughly review a blog post. If the post is flawless and ready for publishing without any changes, you MUST return exactly: 'The post is good.'. Otherwise, provide a detailed review highlighting any logical inconsistencies, posing critical questions, suggesting improvements, and noting any grammar or spelling errors.",templates/types/multiagent/express/src/workflow/factory.ts (1)
36-47: Document required parameters in constructor options.The
streamparameter is essential but isn't explicitly marked as required in the constructor options. To enhance code clarity, consider updating the parameter definition to indicate that it is required.Apply this diff to adjust the parameter definition:
constructor(options: { name: string; llm?: LLM; chatHistory?: ChatMessage[]; tools?: BaseToolWithCall[]; systemPrompt?: string; writeEvents?: boolean; role?: string; verbose?: boolean; timeout?: number; - stream: StreamData; + stream: StreamData; // Note: This parameter is required }) {
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (21)
- .changeset/yellow-jokes-protect.md (1 hunks)
- helpers/typescript.ts (2 hunks)
- questions.ts (2 hunks)
- templates/types/multiagent/express/README-template.md (1 hunks)
- templates/types/multiagent/express/eslintrc.json (1 hunks)
- templates/types/multiagent/express/gitignore (1 hunks)
- templates/types/multiagent/express/index.ts (1 hunks)
- templates/types/multiagent/express/npmrc (1 hunks)
- templates/types/multiagent/express/package.json (1 hunks)
- templates/types/multiagent/express/prettier.config.cjs (1 hunks)
- templates/types/multiagent/express/src/controllers/chat-config.controller.ts (1 hunks)
- templates/types/multiagent/express/src/controllers/chat.controller.ts (1 hunks)
- templates/types/multiagent/express/src/observability/index.ts (1 hunks)
- templates/types/multiagent/express/src/routes/chat.route.ts (1 hunks)
- templates/types/multiagent/express/src/workflow/agents.ts (1 hunks)
- templates/types/multiagent/express/src/workflow/factory.ts (1 hunks)
- templates/types/multiagent/express/src/workflow/index.ts (1 hunks)
- templates/types/multiagent/express/src/workflow/stream.ts (1 hunks)
- templates/types/multiagent/express/src/workflow/type.ts (1 hunks)
- templates/types/multiagent/express/tsconfig.json (1 hunks)
- templates/types/streaming/nextjs/app/api/chat/engine/settings.ts (0 hunks)
Files not reviewed due to no reviewable changes (1)
- templates/types/streaming/nextjs/app/api/chat/engine/settings.ts
Files skipped from review due to trivial changes (1)
- templates/types/multiagent/express/src/observability/index.ts
Additional context used
Markdownlint
templates/types/multiagent/express/README-template.md
7-7: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
13-13: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
19-19: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
30-30: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
38-38: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
51-51: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
57-57: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
67-67: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
75-75: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
87-87: null
Fenced code blocks should have a language specified(MD040, fenced-code-language)
Biome
templates/types/multiagent/express/src/controllers/chat-config.controller.ts
[error] 7-8: Change to an optional chain.
Unsafe fix: Change to an optional chain.
(lint/complexity/useOptionalChain)
Additional comments not posted (28)
templates/types/multiagent/express/npmrc (1)
1-1: LGTM!The
node-linker=hoistedconfiguration is valid and commonly used to ensure compatibility with older npm versions (before v7) or to avoid issues with certain packages that have not been updated to work with the new npm behavior.This configuration maximizes compatibility by replicating the behavior of npm versions prior to v7. It's a good choice if you need to ensure that your project works consistently across different npm versions or if you are using dependencies that have not yet been updated to support the new npm behavior.
templates/types/multiagent/express/gitignore (1)
1-5: LGTM!The
.gitignorefile is set up correctly to ignore common files and directories that should not be tracked by Git. This includes:
.envfile for storing environment variablesnode_modules/directory for Node.js dependenciesoutput/directory for generated filesIgnoring these files and directories is a best practice and helps keep the repository clean.
templates/types/multiagent/express/prettier.config.cjs (1)
1-3: LGTM!The Prettier configuration file is set up correctly with the
prettier-plugin-organize-importsplugin. This plugin will help maintain a consistent import order across the codebase, improving readability and maintainability..changeset/yellow-jokes-protect.md (1)
1-5: LGTM!The changeset follows the correct format and the content looks good:
- The package name "create-llama" is specified correctly.
- The version bump type is set to "patch", which is appropriate for adding a new feature that doesn't break existing functionality.
- The message provides a clear and concise description of the change.
templates/types/multiagent/express/eslintrc.json (1)
1-10: LGTM!The ESLint configuration file is set up correctly:
- It extends the recommended ESLint rules and Prettier rules.
- It sets a reasonable maximum of 4 parameters for functions.
- It enforces the use of
constfor variables that are never reassigned.- It sets the
sourceTypetomodulefor a project that uses ES modules.This configuration will help enforce consistent code style and best practices across the project.
templates/types/multiagent/express/src/routes/chat.route.ts (1)
1-12: LGTM!The Express router for chat-related routes is defined correctly:
- Necessary dependencies and controllers are imported.
- Routes are mapped to the appropriate controllers.
- The router is exported as the default export.
The code follows a standard structure and there are no apparent issues.
templates/types/multiagent/express/src/workflow/type.ts (4)
4-7: LGTM!The
AgentInputtype definition is clear and concise. The properties are well-defined with appropriate types and optionality.
9-12: LGTM!The
AgentRunEventclass definition is clear and concise. It extendsWorkflowEventwith a well-defined generic type parameter.
14-16: LGTM!The
AgentRunResultclass definition is clear and concise. The constructor takes aresponseparameter of typeAsyncGenerator<WorkflowEvent>and assigns it to a public property.
18-20: LGTM!The
FunctionCallingStreamResultclass definition is clear and concise. The constructor takes aresponseparameter of typeReadableStream<EngineResponse>and assigns it to a public property.templates/types/multiagent/express/src/controllers/chat-config.controller.ts (2)
4-15: LGTM!The function logic is correct, and the implementation is accurate. It correctly checks for the existence and non-empty value of the
CONVERSATION_STARTERSenvironment variable, splits it by newline characters, and returns the resulting array in the response.Tools
Biome
[error] 7-8: Change to an optional chain.
Unsafe fix: Change to an optional chain.
(lint/complexity/useOptionalChain)
17-31: LGTM!The function logic is correct, and the implementation is accurate. It correctly checks for the existence of the
LLAMA_CLOUD_API_KEYenvironment variable, retrieves all projects with pipelines, and returns the configuration in the response.The static analysis hint suggests using optional chaining for the environment variable check, but it's not applicable in this case as the check is already correctly implemented using an if statement.
templates/types/multiagent/express/package.json (2)
17-30: Verify compatibility of "ai" and "llamaindex" dependencies.Using both "ai" and "llamaindex" libraries together could potentially lead to dependency conflicts, as they are separate AI libraries. Please verify that these dependencies are compatible and being used for distinct purposes to avoid any issues.
1-45: Dependencies and scripts look good!The overall structure of the
package.jsonfile looks great. The dependencies seem reasonable for a multi-agent AI project built with Express.js, with a good mix of AI libraries, web frameworks, and utility packages. The dev dependencies and scripts are also standard for a TypeScript project.Just verify the compatibility of the AI libraries as mentioned in the other comment. Otherwise, this looks ready to go!
templates/types/multiagent/express/index.ts (5)
1-7: LGTM!The code segment imports necessary dependencies and modules. Disabling the ESLint rule for undeclared environment variables is acceptable in this case.
8-15: LGTM!The code segment sets up the Express app instance, port number, environment determination, and initializes observability correctly.
17-32: LGTM!The CORS configuration logic is implemented correctly based on the environment. It allows CORS for all origins in development mode and restricts it to a specific domain in production mode. Defaulting to no CORS if
PROD_CORS_ORIGINis not set in production is a safe fallback.
34-42: LGTM!The code segment sets up static file serving, request body parsing, a root route, and mounts the
chatRoutercorrectly.
44-46: LGTM!The code segment starts the Express server and listens on the specified port correctly. Logging a message to the console when the server starts is a good practice for visibility.
helpers/typescript.ts (1)
152-159: Looks good!The new functionality to copy the settings file (
settings.ts) to the engine folder is implemented correctly. The path for the settings file is constructed based on thecompPathvariable, and the file is copied to the appropriate location within theenginePath.questions.ts (2)
Line range hint
413-417: LGTM!The logic for the "extractor" template is clear and concise. It explicitly states the supported framework (FastAPI), data sources (empty), and llamacloud. Using a predefined example file as the data source for the extractor template allows users to select a vector database later.
424-426: LGTM!The conditional inclusion of the "NextJS" option based on the template type ensures that unsupported combinations are not presented to the user. If the template is "multiagent", the "NextJS" option is correctly omitted from the choices.
templates/types/multiagent/express/src/controllers/chat.controller.ts (2)
23-23: Considerawaitingagent.run(userMessage.content)if it's asynchronousIf
agent.run()is an asynchronous function, it should be awaited to ensure that it completes before proceeding. Not awaiting it may lead to unexpected behavior or unhandled promises.Apply the following diff to await the function call:
- agent.run(userMessage.content); + await agent.run(userMessage.content);Please verify if
agent.run()returns a promise and should be awaited.
21-21: Verify the type casting fromMessage[]toChatMessage[]Casting
messagesfromMessage[]toChatMessage[]may not be safe ifMessageandChatMessagehave different structures. Ensure that the properties align or transformmessagesappropriately.To confirm compatibility, you can verify the structures using the following script:
templates/types/multiagent/express/src/workflow/stream.ts (2)
46-49: Verify ifdata.close()is necessary and correctly implemented.In the
close()method of theWritableStream, you calldata.close();. Ensure that thedataobject has aclose()method and that invoking it here is appropriate. Ifdatais of typeStreamDatafrom theailibrary, confirm that it includes aclose()method and that it behaves as expected in this context.Run the following script to check the
StreamDatatype definition:#!/bin/bash # Description: Check if `StreamData` has a `close` method. # Search for the definition of `StreamData` in the codebase. rg --type=typescript 'interface StreamData' -A 10 # If not found locally, check the `ai` package for `StreamData` definition. rg --type=typescript 'export.*StreamData' -A 10 node_modules/aiIf
data.close()is not necessary or does not exist, remove it:close() { controller.close(); - data.close(); },
40-45: Ensurechunk.deltais always defined before processing.In the
write(chunk)method of theWritableStream, you accesschunk.deltausing the nullish coalescing operator?? "". Ensure thatchunkalways has adeltaproperty, or handle cases where it might beundefinedornullto prevent runtime errors.Run the following script to verify that
chunk.deltais always defined:Alternatively, add a type guard or validation:
write(chunk) { + if (!('delta' in chunk)) { + throw new Error('chunk.delta is undefined'); + } const text = trimStartOfStream(chunk.delta ?? ""); if (text) { controller.enqueue(text); } },Verification successful
Nullish coalescing operator handles potential undefined delta, but type definition could improve safety.
The current implementation already uses the nullish coalescing operator (
??) to handle cases wherechunk.deltamight beundefinedornull. This approach is consistent across the codebase, as seen in bothtemplates/types/multiagent/express/src/workflow/stream.tsandtemplates/components/llamaindex/typescript/streaming/stream.ts.While this handles the runtime safety, consider adding a type definition for the
chunkobject to improve type safety:interface Chunk { delta?: string; // Add other properties if needed } write(chunk: Chunk) { const text = trimStartOfStream(chunk.delta ?? ""); // ... rest of the method }This would provide better type checking while maintaining the current runtime safety with the nullish coalescing operator.
Scripts executed
The following scripts were executed for the analysis:
Script:
#!/bin/bash # Description: Verify that `chunk.delta` is always defined in the stream. # Search for all places where chunks are created and ensure they have a `delta` property. rg --type=typescript 'new WritableStream' -A 20 # Check the type definitions of `chunk` to confirm it includes `delta`. rg --type=typescript 'interface Chunk' -A 10Length of output: 281
Script:
#!/bin/bash # Find and display the content of the file containing the 'WritableStream' implementation echo "=== WritableStream Implementation ===" fd -e ts -e js | xargs grep -n "new WritableStream" -A 20 || echo "No WritableStream found" echo "\n=== Type Definitions or Interfaces ===" fd -e ts -e js | xargs grep -n "interface.*Stream\|type.*Stream\|interface.*Chunk\|type.*Chunk" -A 10 || echo "No relevant type definitions found" echo "\n=== Usage of 'delta' property ===" fd -e ts -e js | xargs grep -n "\.delta" -B 5 -A 5 || echo "No usage of 'delta' property found"Length of output: 6246
templates/types/multiagent/express/src/workflow/agents.ts (2)
1-4: Import statements are well-organizedThe import statements are properly structured and follow best practices.
24-36:createResearcherfunction implementation is correctThe
createResearcherfunction is correctly implemented and makes appropriate use ofgetQueryEngineTool().
| "forceConsistentCasingInFileNames": true, | ||
| "strict": true, | ||
| "skipLibCheck": true, | ||
| "moduleResolution": "bundler", |
There was a problem hiding this comment.
Invalid moduleResolution value.
The moduleResolution option is set to bundler, which is not a valid value. The valid values are node (default), classic, or node16/nodenext (for Node.js 16+).
Please update the moduleResolution option to a valid value, for example:
- "moduleResolution": "bundler",
+ "moduleResolution": "node",Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| "moduleResolution": "bundler", | |
| "moduleResolution": "node", |
| console.error("[LlamaIndex]", error); | ||
| return res.status(500).json({ | ||
| detail: (error as Error).message, | ||
| }); |
There was a problem hiding this comment.
Avoid exposing internal error messages to clients
Returning internal error messages can expose sensitive information. It's better to send a generic error message to the client and log the detailed error on the server.
Apply this diff to send a generic error response:
console.error("[LlamaIndex]", error);
return res.status(500).json({
- detail: (error as Error).message,
+ error: "Internal server error. Please try again later.",
});Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| console.error("[LlamaIndex]", error); | |
| return res.status(500).json({ | |
| detail: (error as Error).message, | |
| }); | |
| console.error("[LlamaIndex]", error); | |
| return res.status(500).json({ | |
| error: "Internal server error. Please try again later.", | |
| }); |
| const { messages }: { messages: Message[] } = req.body; | ||
| const userMessage = messages.pop(); | ||
| if (!messages || !userMessage || userMessage.role !== "user") { |
There was a problem hiding this comment.
Prevent potential runtime error when messages is undefined
Accessing messages.pop() without ensuring that messages is defined and is an array may lead to a runtime error if messages is undefined or not an array. It's advisable to verify messages before using it.
Apply the following diff to ensure messages exists and is a non-empty array before proceeding:
try {
- const { messages }: { messages: Message[] } = req.body;
- const userMessage = messages.pop();
- if (!messages || !userMessage || userMessage.role !== "user") {
+ const { messages }: { messages: Message[] } = req.body;
+ if (!messages || !Array.isArray(messages) || messages.length === 0) {
+ return res.status(400).json({
+ error: "messages must be a non-empty array in the request body",
+ });
+ }
+ const userMessage = messages.pop();
+ if (!userMessage || userMessage.role !== "user") {
return res.status(400).json({
- error:
- "messages are required in the request body and the last message must be from the user",
+ error: "The last message must be from the user",
});
}Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const { messages }: { messages: Message[] } = req.body; | |
| const userMessage = messages.pop(); | |
| if (!messages || !userMessage || userMessage.role !== "user") { | |
| const { messages }: { messages: Message[] } = req.body; | |
| if (!messages || !Array.isArray(messages) || messages.length === 0) { | |
| return res.status(400).json({ | |
| error: "messages must be a non-empty array in the request body", | |
| }); | |
| } | |
| const userMessage = messages.pop(); | |
| if (!userMessage || userMessage.role !== "user") { | |
| return res.status(400).json({ | |
| error: "The last message must be from the user", | |
| }); | |
| } |
| async pull(controller): Promise<void> { | ||
| const { value, done } = await generator.next(); | ||
| if (done) return; | ||
| if (value.data instanceof AgentRunResult) { | ||
| const finalResultStream = value.data.response; | ||
| for await (const event of finalResultStream) { | ||
| if (event.data instanceof FunctionCallingStreamResult) { | ||
| const readableStream = event.data.response; | ||
| readableStream.pipeTo( | ||
| new WritableStream({ | ||
| write(chunk) { | ||
| const text = trimStartOfStream(chunk.delta ?? ""); | ||
| if (text) { | ||
| controller.enqueue(text); | ||
| } | ||
| }, | ||
| close() { | ||
| controller.close(); | ||
| data.close(); | ||
| }, | ||
| }), | ||
| ); | ||
| } | ||
| } | ||
| } | ||
| }, |
There was a problem hiding this comment.
Consider refactoring the pull method to improve readability.
The pull method contains nested if statements and loops, which can make the code harder to read and maintain. Refactoring the method by reducing nesting and extracting parts into separate functions can enhance clarity and maintainability.
Here's an example of how you might refactor the pull method:
async pull(controller): Promise<void> {
const { value, done } = await generator.next();
if (done) {
controller.close();
data.close();
return;
}
if (!(value.data instanceof AgentRunResult)) {
controller.error(new Error('Unexpected data type in generator output'));
return;
}
await processFinalResultStream(value.data.response, controller);
}
async function processFinalResultStream(
finalResultStream: AsyncIterable<WorkflowEvent>,
controller: ReadableStreamDefaultController<string>
) {
for await (const event of finalResultStream) {
if (!(event.data instanceof FunctionCallingStreamResult)) {
console.warn('Unhandled event data type:', event.data);
continue;
}
const readableStream = event.data.response;
await readableStream.pipeTo(
new WritableStream({
write(chunk) {
const text = trimStartOfStream(chunk.delta ?? "");
if (text) {
controller.enqueue(text);
}
},
close() {
controller.close();
data.close();
},
})
);
}
}| start(controller) { | ||
| controller.enqueue(""); // Kickstart the stream | ||
| }, |
There was a problem hiding this comment.
Consider removing the initial empty enqueue in the start method.
In the start method of the ReadableStream, controller.enqueue(""); is called to kickstart the stream. Enqueuing an empty string might introduce an unexpected empty chunk to the consumers of the stream. If the initial empty chunk is not required by your stream consumers, consider removing this line to prevent potential confusion or bugs.
Apply this diff to remove the initial empty enqueue:
start(controller) {
- controller.enqueue(""); // Kickstart the stream
},Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| start(controller) { | |
| controller.enqueue(""); // Kickstart the stream | |
| }, | |
| start(controller) { | |
| }, |
| }; | ||
|
|
||
| const research = async (context: Context, ev: ResearchEvent) => { | ||
| const researcher = await createResearcher(chatHistory, stream); |
There was a problem hiding this comment.
Add error handling for potential failures in agent creation.
When creating agents using await createResearcher(...), createWriter(...), and createReviewer(...), consider adding error handling to manage potential failures during agent instantiation.
Wrap the agent creation calls in try-catch blocks to handle any exceptions, ensuring the workflow can handle errors gracefully.
Example:
try {
const researcher = await createResearcher(chatHistory, stream);
} catch (error) {
// Handle error (e.g., log it, return an error event, etc.)
}Also applies to: 64-64, 87-87
| ); | ||
| if (postIsGood) { | ||
| return new WriteEvent({ | ||
| input: `You're blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``, |
There was a problem hiding this comment.
Correct the grammatical error in the message text.
The message on line 102 contains a grammatical error: "You're blog post is ready...". It should be "Your blog post is ready...".
Apply this diff to fix the error:
- input: `You're blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``,
+ input: `Your blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``,Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| input: `You're blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``, | |
| input: `Your blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``, |
| writer.run( | ||
| new StartEvent<AgentInput>({ | ||
| input: { message: ev.data.input, streaming: true }, | ||
| }), | ||
| ); |
There was a problem hiding this comment.
Await the asynchronous writer.run() function to ensure proper execution.
The writer.run() function appears to be asynchronous. Without awaiting it, the code may not execute as expected, leading to potential race conditions or unhandled promises.
Apply this diff to fix the issue:
- writer.run(
+ await writer.run(Ensure that you handle any returned promises or errors appropriately.
Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| writer.run( | |
| new StartEvent<AgentInput>({ | |
| input: { message: ev.data.input, streaming: true }, | |
| }), | |
| ); | |
| await writer.run( | |
| new StartEvent<AgentInput>({ | |
| input: { message: ev.data.input, streaming: true }, | |
| }), | |
| ); |
|
|
||
| const write = async (context: Context, ev: WriteEvent) => { | ||
| context.set("attempts", context.get("attempts", 0) + 1); | ||
| const tooManyAttempts = context.get("attempts") > MAX_ATTEMPTS; |
There was a problem hiding this comment.
Adjust the condition to correctly limit the number of attempts.
Currently, the condition context.get("attempts") > MAX_ATTEMPTS will allow for MAX_ATTEMPTS + 1 attempts before triggering the limit. To ensure the maximum number of attempts does not exceed MAX_ATTEMPTS, the condition should use >=.
Apply this diff to fix the condition:
- const tooManyAttempts = context.get("attempts") > MAX_ATTEMPTS;
+ const tooManyAttempts = context.get("attempts") >= MAX_ATTEMPTS;Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const tooManyAttempts = context.get("attempts") > MAX_ATTEMPTS; | |
| const tooManyAttempts = context.get("attempts") >= MAX_ATTEMPTS; |
| ); | ||
| const reviewResult = reviewRes.data.result; | ||
| const oldContent = context.get("result"); | ||
| const postIsGood = reviewResult.toLowerCase().includes("post is good"); |
There was a problem hiding this comment.
Improve the robustness of the postIsGood condition check.
The current check reviewResult.toLowerCase().includes("post is good") may not reliably determine whether the post is acceptable, especially if the reviewer's feedback varies in wording.
Consider using a more reliable method to assess the review result, such as expecting a structured response, predefined keywords, or implementing a scoring mechanism.
Example:
- const postIsGood = reviewResult.toLowerCase().includes("post is good");
+ const postIsGood = /post is good/i.test(reviewResult) || /approved/i.test(reviewResult);Or define a standard response format for the reviewer to follow.
Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const postIsGood = reviewResult.toLowerCase().includes("post is good"); | |
| const postIsGood = /post is good/i.test(reviewResult) || /approved/i.test(reviewResult); |
There was a problem hiding this comment.
Actionable comments posted: 14
Outside diff range and nitpick comments (3)
templates/components/multiagent/typescript/workflow/stream.ts (1)
28-28: Re-evaluate the necessity of enqueuing an empty stringIn the
startmethod, you enqueue an empty string withcontroller.enqueue("");to kickstart the stream. If this isn't necessary for the stream's functionality, consider removing it to avoid sending unnecessary data to the stream consumers.templates/components/multiagent/typescript/workflow/factory.ts (2)
49-50: Unnecessary optional chaining on the 'options' objectThe
optionsparameter is required in the constructor, so using optional chaining (options?.) when accessing its properties is unnecessary and may imply thatoptionscould beundefined.Remove the optional chaining for clearer code:
- verbose: options?.verbose ?? false, - timeout: options?.timeout ?? 360, + verbose: options.verbose ?? false, + timeout: options.timeout ?? 360, - this.name = options?.name; + this.name = options.name; - this.tools = options?.tools ?? []; + this.tools = options.tools ?? []; - this.writeEvents = options?.writeEvents ?? true; + this.writeEvents = options.writeEvents ?? true;Also applies to: 52-52, 58-58, 60-60
37-46: Consider marking 'stream' as optional in constructor optionsThe
streamproperty in the constructor options is currently required, but there may be cases where it's not provided. To increase flexibility, consider marking it as optional.- stream: StreamData; + stream?: StreamData;And adjust the assignment accordingly, ensuring you handle the possibility of
undefinedwherethis.streamis used.
Review details
Configuration used: CodeRabbit UI
Review profile: CHILL
Files selected for processing (7)
- helpers/typescript.ts (3 hunks)
- templates/components/multiagent/typescript/workflow/agents.ts (1 hunks)
- templates/components/multiagent/typescript/workflow/factory.ts (1 hunks)
- templates/components/multiagent/typescript/workflow/index.ts (1 hunks)
- templates/components/multiagent/typescript/workflow/stream.ts (1 hunks)
- templates/components/multiagent/typescript/workflow/type.ts (1 hunks)
- templates/types/multiagent/express/src/controllers/chat.controller.ts (1 hunks)
Files skipped from review as they are similar to previous changes (2)
- helpers/typescript.ts
- templates/types/multiagent/express/src/controllers/chat.controller.ts
Additional comments not posted (5)
templates/components/multiagent/typescript/workflow/type.ts (4)
4-7: LGTM!The
AgentInputtype definition is clear and concise. Themessageproperty is required, whilestreamingis optional, which makes sense for an agent input.
9-12: LGTM!The
AgentRunEventclass definition is clear and concise. Extending theWorkflowEventclass is appropriate for an agent run event, and the generic type parameter properties are well-defined.
14-16: LGTM!The
AgentRunResultclass definition is clear and concise. Using anAsyncGeneratorfor theresponseproperty is appropriate for streaming workflow events.
18-20: LGTM!The
FunctionCallingStreamResultclass definition is clear and concise. Using aReadableStreamfor theresponseproperty is appropriate for streaming engine responses.templates/components/multiagent/typescript/workflow/factory.ts (1)
145-151: Potential PII exposure in event messagesThe
writeEventmethod logs messages that may include user inputs or other sensitive information. This could lead to unintentional exposure of PII in logs or streams.Please ensure that the messages logged do not contain sensitive information. If necessary, sanitize or exclude such data from the logs.
| if (value.data instanceof AgentRunResult) { | ||
| const finalResultStream = value.data.response; | ||
| for await (const event of finalResultStream) { | ||
| if (event.data instanceof FunctionCallingStreamResult) { | ||
| const readableStream = event.data.response; | ||
| readableStream.pipeTo( | ||
| new WritableStream({ | ||
| write(chunk) { | ||
| const text = trimStartOfStream(chunk.delta ?? ""); | ||
| if (text) { | ||
| controller.enqueue(text); | ||
| } | ||
| }, | ||
| close() { | ||
| controller.close(); | ||
| data.close(); | ||
| }, | ||
| }), | ||
| ); | ||
| } | ||
| } | ||
| } |
There was a problem hiding this comment.
Handle other possible WorkflowEvent data types
Currently, the pull method only handles the case when value.data is an instance of AgentRunResult. If value.data can be other types, consider handling them appropriately or adding an else statement to handle unexpected cases to prevent silent failures.
| readableStream.pipeTo( | ||
| new WritableStream({ | ||
| write(chunk) { | ||
| const text = trimStartOfStream(chunk.delta ?? ""); |
There was a problem hiding this comment.
Ensure safe access to chunk.delta
In the write method of the WritableStream, you're using chunk.delta ?? "". To prevent potential runtime errors, ensure that chunk is not undefined and that chunk.delta is a valid property. If there's a possibility that chunk might not have delta, consider adding a check or handling this case.
| }, | ||
| async pull(controller): Promise<void> { | ||
| const { value, done } = await generator.next(); | ||
| if (done) return; |
There was a problem hiding this comment.
Ensure the stream is properly closed when the generator is done
In the pull method, when done is true, consider calling controller.close(); to signal the end of the stream to consumers.
Apply this diff to close the controller when the generator is done:
if (done) {
+ controller.close();
return;
}Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| if (done) return; | |
| if (done) { | |
| controller.close(); | |
| return; | |
| } |
| throw new Error("Index not found. Please create an index first."); | ||
| } | ||
|
|
||
| const topK = process.env.TOP_K ? parseInt(process.env.TOP_K) : undefined; |
There was a problem hiding this comment.
Specify radix parameter in parseInt to ensure consistent parsing
In line 12, parseInt is used without specifying the radix parameter. Omitting the radix can lead to unexpected results. It's recommended to specify the radix explicitly to avoid potential issues.
Apply this diff to fix the issue:
- const topK = process.env.TOP_K ? parseInt(process.env.TOP_K) : undefined;
+ const topK = process.env.TOP_K ? parseInt(process.env.TOP_K, 10) : undefined;Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| const topK = process.env.TOP_K ? parseInt(process.env.TOP_K) : undefined; | |
| const topK = process.env.TOP_K ? parseInt(process.env.TOP_K, 10) : undefined; |
| private async handleLLMInput( | ||
| ctx: Context, | ||
| ev: InputEvent, | ||
| ): Promise<StopEvent<string | ReadableStream<EngineResponse>>> { |
There was a problem hiding this comment.
'ReadableStream' is not imported or may be undefined
The type ReadableStream used in the return type might not be recognized, as it is not imported or defined in this context. This could lead to TypeScript compilation errors.
To fix this, import ReadableStream from the appropriate module. If you're using a library that provides ReadableStream, ensure it's correctly imported. For Node.js, you might adjust the return type as follows:
- ): Promise<StopEvent<string | ReadableStream<EngineResponse>>> {
+ ): Promise<StopEvent<string | NodeJS.ReadableStream<EngineResponse>>> {And add the necessary import at the top of your file:
import { Readable } from 'stream';| return chatEngine.chat({ | ||
| message: ev.data.input.pop()!.content, | ||
| }); | ||
| }, |
There was a problem hiding this comment.
Avoid mutating the input array and handle empty inputs safely
Using ev.data.input.pop()!.content modifies the original input array by removing the last element, which may lead to unintended side effects. Additionally, if input is empty, calling pop() will return undefined, causing a runtime error when accessing .content.
Consider accessing the last element without modifying the array and add a check for empty inputs:
- message: ev.data.input.pop()!.content,
+ const lastMessage = ev.data.input[ev.data.input.length - 1];
+ if (!lastMessage) {
+ throw new Error("No messages in input");
+ }
+ message: lastMessage.content,Committable suggestion was skipped due to low confidence.
| ); | ||
| const reviewResult = reviewRes.data.result; | ||
| const oldContent = context.get("result"); | ||
| const postIsGood = reviewResult.toLowerCase().includes("post is good"); |
There was a problem hiding this comment.
Improve robustness of post evaluation logic
The current check reviewResult.toLowerCase().includes("post is good") may not be reliable if the reviewer uses different wording. Consider standardizing the reviewer's response or using a more reliable method to determine if the post is good.
Consider updating the reviewer to return a structured response indicating whether the post is good. For example, the reviewer could return a JSON object:
{ isGood: true, feedback: "The post is good." }Then, update the code to parse this structured response:
- const postIsGood = reviewResult.toLowerCase().includes("post is good");
+ const reviewData = JSON.parse(reviewResult);
+ const postIsGood = reviewData.isGood;| } | ||
|
|
||
| if (ev.data.isGood || tooManyAttempts) { | ||
| const writer = createWriter(chatHistory, stream); |
There was a problem hiding this comment.
Inconsistent usage of asynchronous functions
In line 42, createResearcher is awaited:
const researcher = await createResearcher(chatHistory, stream);However, in lines 64, 77, and 87, createWriter and createReviewer are not awaited:
// Line 64
const writer = createWriter(chatHistory, stream);
// Line 77
const writer = createWriter(chatHistory, stream);
// Line 87
const reviewer = createReviewer(chatHistory, stream);Ensure consistent usage:
-
If
createWriterandcreateReviewerare asynchronous functions, addawait:// Line 64 - const writer = createWriter(chatHistory, stream); + const writer = await createWriter(chatHistory, stream); // Line 77 - const writer = createWriter(chatHistory, stream); + const writer = await createWriter(chatHistory, stream); // Line 87 - const reviewer = createReviewer(chatHistory, stream); + const reviewer = await createReviewer(chatHistory, stream);
-
If they are synchronous, consider removing the
awaitfromcreateResearcherin line 42 for consistency.
Also applies to: 77-77, 87-87
| ); | ||
| if (postIsGood) { | ||
| return new WriteEvent({ | ||
| input: `You're blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``, |
There was a problem hiding this comment.
Typo in the message string: "You're" should be "Your"
In line 102, the message says "You're blog post is ready for publication." It should be "Your blog post is ready for publication."
Apply this diff to fix the typo:
- input: `You're blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``,
+ input: `Your blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``,Committable suggestion
‼️ IMPORTANT
Carefully review the code before committing. Ensure that it accurately replaces the highlighted code, contains no missing lines, and has no issues with indentation. Thoroughly test & benchmark the code to ensure it meets the requirements.
| input: `You're blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``, | |
| input: `Your blog post is ready for publication. Please respond with just the blog post. Blog post: \`\`\`${oldContent}\`\`\``, |
| writer.run( | ||
| new StartEvent<AgentInput>({ | ||
| input: { message: ev.data.input, streaming: true }, | ||
| }), | ||
| ); |
There was a problem hiding this comment.
Possible unhandled promise: Consider awaiting writer.run()
In lines 65-69, writer.run() is called without await. If writer.run() is an asynchronous function, not awaiting it may lead to unhandled promises and unexpected behavior.
Consider adding await to ensure the promise is handled:
- writer.run(
+ await writer.run(Committable suggestion was skipped due to low confidence.
Summary by CodeRabbit
Release Notes
New Features
README-template.mdfor projects using LlamaIndex with Express.Bug Fixes
Chores
.gitignoreand.npmrcfor better project management.