diff --git a/.gitignore b/.gitignore
index c69a32c..dcf30d6 100644
--- a/.gitignore
+++ b/.gitignore
@@ -136,7 +136,6 @@ dist
 # vuepress v2.x temp and cache directory
 
 .temp
-.cache
 
 # Docusaurus cache and generated files
 
diff --git a/examples/beginner-chat.ts b/examples/beginner-chat.ts
index 1a6ff56..96f6deb 100644
--- a/examples/beginner-chat.ts
+++ b/examples/beginner-chat.ts
@@ -25,8 +25,7 @@ export const aibitat = new AIbitat({
         'https://raw.githubusercontent.com/wladiston/aibitat/main/README.md',
       )
       const html = await response.text()
-      const text = cheerio.load(html).text()
-      return text
+      return cheerio.load(html).text()
     },
   })
   .agent(Agent.HUMAN, {
diff --git a/src/cli.ts b/src/cli.ts
index 23bc64c..25857fb 100755
--- a/src/cli.ts
+++ b/src/cli.ts
@@ -59,12 +59,12 @@ const aibitat = new AIbitat()
       }
 
       if (typeof Bun !== 'undefined') {
-        Bun.write(filename, code)
+        await Bun.write(filename, code)
         return `File ${filename} created and can be executed with "bun ${filename}"`
       }
 
       const fs = await import('fs')
-      await fs.writeFile(filename, code, () => {})
+      fs.writeFile(filename, code, () => {})
       return `File ${filename} created and can be executed with "node ${filename}"`
     },
   })
diff --git a/src/index.test.ts b/src/index.test.ts
index 1b68d3b..5bbd016 100644
--- a/src/index.test.ts
+++ b/src/index.test.ts
@@ -3,7 +3,7 @@ import OpenAI from 'openai'
 
 import {RetryError} from './error.ts'
 import {AIbitat} from './index.ts'
-import type {Provider} from './providers/index.ts'
+import type {Provider} from './providers'
 
 // HACK: Mock the AI provider.
 // This is still needed because Bun doesn't support mocking modules yet.
diff --git a/src/index.ts b/src/index.ts
index 1872c95..0443d88 100644
--- a/src/index.ts
+++ b/src/index.ts
@@ -64,7 +64,7 @@ export type ChannelConfig<T extends Provider = 'openai'> = ProviderConfig<T> & {
   role?: string
 
   /**
-   * The maximum number of rounds a agent can chat with the channel
+   * The maximum number of rounds an agent can chat with the channel
    * @default 10
    */
   maxRounds?: number
@@ -307,7 +307,7 @@ export class AIbitat<T extends Provider> {
   /**
    * Interruption the chat.
    *
-   * @param chat The nodes that participated in the interruption.
+   * @param route The nodes that participated in the interruption.
    * @returns
    */
   private interrupt(route: Route) {
@@ -379,7 +379,8 @@ export class AIbitat<T extends Provider> {
    * Register an error in the chat history.
    * This will trigger the `onError` event.
    *
-   * @param message
+   * @param route
+   * @param error
    */
   private newError(route: Route, error: unknown) {
     const chat = {
@@ -426,7 +427,7 @@ export class AIbitat<T extends Provider> {
   /**
    * Recursively chat between two nodes.
    *
-   * @param chat The nodes that are going to participate in the chat.
+   * @param route
    * @param keepAlive Whether to keep the chat alive.
    */
   private async chat(route: Route, keepAlive = true) {
@@ -550,7 +551,7 @@ export class AIbitat<T extends Provider> {
       node => !this.hasReachedMaximumRounds(channel, node),
     )
 
-    // remove the last node that chatted with the channel so it doesn't chat again
+    // remove the last node that chatted with the channel, so it doesn't chat again
     const lastChat = this._chats.filter(c => c.to === channel).at(-1)
     if (lastChat) {
       const index = availableNodes.indexOf(lastChat.from)
diff --git a/src/plugins/cli.ts b/src/plugins/cli.ts
index 1991acd..2f9c297 100644
--- a/src/plugins/cli.ts
+++ b/src/plugins/cli.ts
@@ -23,9 +23,8 @@ function cli({
     setup(aibitat) {
       let printing: Promise<void>[] = []
 
-      aibitat.onError(error => {
+      aibitat.onError(async error => {
         console.error(chalk.red(`   error: ${(error as Error).message}`))
-
         if (error instanceof RetryError) {
           console.error(chalk.red(`   retrying in 60 seconds...`))
           setTimeout(() => {
diff --git a/src/plugins/web-browsing.ts b/src/plugins/web-browsing.ts
index ff7bd5d..27ca2e9 100644
--- a/src/plugins/web-browsing.ts
+++ b/src/plugins/web-browsing.ts
@@ -12,6 +12,7 @@ import type {AIbitat} from '..'
  * **Requires an SERPER_API_KEY environment variable**.
  *
  * @param query
+ * @param options
  * @returns
  */
 async function search(
diff --git a/src/providers/ai-provider.ts b/src/providers/ai-provider.ts
index 7551ab6..d21c491 100644
--- a/src/providers/ai-provider.ts
+++ b/src/providers/ai-provider.ts
@@ -4,9 +4,9 @@ import type {AIbitat} from '..'
  * A service that provides an AI client to create a completion.
  */
 export abstract class Provider<T> {
-  private _client: T
+  private readonly _client: T
 
-  constructor(client: T) {
+  protected constructor(client: T) {
     this._client = client
   }
 
@@ -23,6 +23,7 @@ export abstract class Provider<T> {
    *
    * @throws known treated errors from `src/error.ts`.
    * @param messages A list of messages to send.
+   * @param functions
    */
   abstract complete(
     messages: Provider.Message[],
diff --git a/src/providers/anthropic.ts b/src/providers/anthropic.ts
index f21ee9d..bcd0ab8 100644
--- a/src/providers/anthropic.ts
+++ b/src/providers/anthropic.ts
@@ -52,6 +52,7 @@ export class AnthropicProvider extends Provider<Anthropic> {
    * Create a completion based on the received messages.
    *
    * @param messages A list of messages to send to the Anthropic API.
+   * @param functions
    * @returns The completion.
    */
   async complete(
diff --git a/src/providers/openai.ts b/src/providers/openai.ts
index 8279e3c..07dd0d6 100644
--- a/src/providers/openai.ts
+++ b/src/providers/openai.ts
@@ -70,6 +70,7 @@ export class OpenAIProvider extends Provider<OpenAI> {
    * Create a completion based on the received messages.
    *
    * @param messages A list of messages to send to the OpenAI API.
+   * @param functions
    * @returns The completion.
    */
   async complete(
@@ -84,7 +85,7 @@ export class OpenAIProvider extends Provider<OpenAI> {
         functions,
       })
 
-      // Right now, we only support one completion
+      // Right now, we only support one completion,
       // so we just take the first one in the list
       const completion = response.choices[0].message
       const cost = this.getCost(response.usage)
@@ -139,7 +140,7 @@ export class OpenAIProvider extends Provider<OpenAI> {
   /**
    * Get the cost of the completion.
    *
-   * @param completion The completion to get the cost for.
+   * @param usage The completion to get the cost for.
    * @returns The cost of the completion.
    */
   getCost(usage: OpenAI.Completions.CompletionUsage | undefined) {