indexx.dev
A chill Bluesky bot, with responses powered by Gemini.
feat: authorized users env var & improved text splitting
+8
-1
.env.example
+8
-1
.env.example
···
1
-
SERVICE="https://pds.indexx.dev"
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+
# Comma-separated list of users who can use the bot (delete var if you want everyone to be able to use it)
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AUTHORIZED_USERS=""
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+
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SERVICE="https://pds.indexx.dev" # PDS service URL (optional)
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DB_PATH="data/sqlite.db"
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GEMINI_MODEL="gemini-2.0-flash-lite"
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ADMIN_DID=""
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ADMIN_HANDLE=""
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DID=""
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HANDLE=""
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# https://bsky.app/settings/app-passwords
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BSKY_PASSWORD=""
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# https://aistudio.google.com/apikey
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GEMINI_API_KEY=""
+19
src/constants.ts
+19
src/constants.ts
···
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export const TAGS = [
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"automated",
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"bot",
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"genai",
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"echo",
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];
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+
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export const UNAUTHORIZED_MESSAGE =
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"hey there! thanks for the heads-up! i'm still under development, so i'm not quite ready to chat with everyone just yet. my admin is working on getting me up to speed! 🤖";
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+
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export const SUPPORTED_FUNCTION_CALLS = [
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"create_post",
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"create_blog_post",
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"mute_thread",
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] as const;
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+
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export const MAX_GRAPHEMES = 300;
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+
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export const MAX_THREAD_DEPTH = 10;
+7
-1
src/env.ts
+7
-1
src/env.ts
···
1
1
import { z } from "zod";
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2
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const envSchema = z.object({
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AUTHORIZED_USERS: z.preprocess(
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(val) =>
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(typeof val === "string" && val.trim() !== "") ? val.split(",") : null,
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z.array(z.string()).nullable().default(null),
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),
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+
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SERVICE: z.string().default("https://bsky.social"),
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DB_PATH: z.string().default("sqlite.db"),
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GEMINI_MODEL: z.string().default("gemini-2.0-flash"),
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GEMINI_MODEL: z.string().default("gemini-2.5-flash"),
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ADMIN_DID: z.string(),
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ADMIN_HANDLE: z.string(),
+25
-34
src/handlers/posts.ts
+25
-34
src/handlers/posts.ts
···
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import consola from "consola";
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import { env } from "../env";
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import db from "../db";
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import * as yaml from "js-yaml";
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import * as c from "../constants";
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import { isAuthorizedUser, logInteraction } from "../utils/interactions";
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const logger = consola.withTag("Post Handler");
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const AUTHORIZED_USERS = [
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"did:plc:sfjxpxxyvewb2zlxwoz2vduw",
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"did:plc:wfa54mpcbngzazwne3piz7fp",
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] as const;
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const UNAUTHORIZED_MESSAGE =
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"hey there! thanks for the heads-up! i'm still under development, so i'm not quite ready to chat with everyone just yet. my admin, @indexx.dev, is working on getting me up to speed! 🤖";
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-
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const SUPPORTED_FUNCTION_CALLS = [
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"create_post",
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"create_blog_post",
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"mute_thread",
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] as const;
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-
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type SupportedFunctionCall = typeof SUPPORTED_FUNCTION_CALLS[number];
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-
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async function isAuthorizedUser(did: string): Promise<boolean> {
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return AUTHORIZED_USERS.includes(did as any);
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}
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async function logInteraction(post: Post): Promise<void> {
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await db.insert(interactions).values([{
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uri: post.uri,
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did: post.author.did,
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}]);
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-
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logger.success(`Logged interaction, initiated by @${post.author.handle}`);
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}
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type SupportedFunctionCall = typeof c.SUPPORTED_FUNCTION_CALLS[number];
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async function generateAIResponse(parsedThread: string) {
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const genai = new GoogleGenAI({
···
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{
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role: "model" as const,
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parts: [
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{ text: modelPrompt },
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{
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/*
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? Once memory blocks are working, this will pull the prompt from the database, and the prompt will be
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? automatically initialized with the administrator's handle from the env variables. I only did this so
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? that if anybody runs the code themselves, they just have to edit the env variables, nothing else.
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*/
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text: modelPrompt.replace(
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"{{ administrator }}",
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env.ADMIN_HANDLE,
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),
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},
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],
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},
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{
···
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if (
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call &&
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SUPPORTED_FUNCTION_CALLS.includes(
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c.SUPPORTED_FUNCTION_CALLS.includes(
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call.name as SupportedFunctionCall,
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)
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) {
···
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if (threadUtils.exceedsGraphemes(text)) {
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threadUtils.multipartResponse(text, post);
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} else {
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post.reply({ text });
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post.reply({
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text,
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tags: c.TAGS,
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});
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}
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}
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export async function handler(post: Post): Promise<void> {
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try {
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if (!await isAuthorizedUser(post.author.did)) {
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await post.reply({ text: UNAUTHORIZED_MESSAGE });
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if (!isAuthorizedUser(post.author.did)) {
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await post.reply({
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text: c.UNAUTHORIZED_MESSAGE,
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tags: c.TAGS,
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});
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return;
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}
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···
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await post.reply({
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text:
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"aw, shucks, something went wrong! gonna take a quick nap and try again later. 😴",
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tags: c.TAGS,
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});
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}
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}
+1
-1
src/model/prompt.txt
+1
-1
src/model/prompt.txt
···
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you are echo, a bluesky bot powered by gemini 2.5 flash. your administrator is @indexx.dev.
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you are echo, a bluesky bot powered by gemini 2.5 flash. your administrator is {{ administrator }}.
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3
your primary goal is to be a fun, casual, and lighthearted presence on bluesky, while also being able to engage with a wider range of topics and difficulties.
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4
+19
src/utils/interactions.ts
+19
src/utils/interactions.ts
···
1
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import { interactions } from "../db/schema";
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import type { Post } from "@skyware/bot";
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import { env } from "../env";
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import db from "../db";
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+
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export function isAuthorizedUser(did: string) {
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return env.AUTHORIZED_USERS == null
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? true
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: env.AUTHORIZED_USERS.includes(did as any);
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}
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+
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export async function logInteraction(post: Post): Promise<void> {
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await db.insert(interactions).values([{
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uri: post.uri,
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did: post.author.did,
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}]);
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console.log(`Logged interaction, initiated by @${post.author.handle}`);
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}
+30
-76
src/utils/thread.ts
+30
-76
src/utils/thread.ts
···
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import { muted_threads } from "../db/schema";
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import { eq } from "drizzle-orm";
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import db from "../db";
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const MAX_GRAPHEMES = 290;
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const MAX_THREAD_DEPTH = 10;
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import * as c from "../constants";
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/*
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Traversal
···
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let parentCount = 0;
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while (
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currentPost && parentCount < MAX_THREAD_DEPTH
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currentPost && parentCount < c.MAX_THREAD_DEPTH
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) {
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const parentPost = await currentPost.fetchParent();
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···
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/*
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Split Responses
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* This code is AI generated, and a bit finicky. May re-do at some point
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*/
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export function exceedsGraphemes(content: string) {
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return graphemeLength(content) > MAX_GRAPHEMES;
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return graphemeLength(content) > c.MAX_GRAPHEMES;
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}
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function splitResponse(content: string): string[] {
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const rawParts: string[] = [];
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let currentPart = "";
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let currentGraphemes = 0;
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export function splitResponse(text: string): string[] {
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const words = text.split(" ");
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const chunks: string[] = [];
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let currentChunk = "";
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const segmenter = new Intl.Segmenter("en-US", { granularity: "sentence" });
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const sentences = [...segmenter.segment(content)].map((s) => s.segment);
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for (const sentence of sentences) {
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const sentenceGraphemes = graphemeLength(sentence);
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if (currentGraphemes + sentenceGraphemes > MAX_GRAPHEMES) {
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rawParts.push(currentPart.trim());
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currentPart = sentence;
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currentGraphemes = sentenceGraphemes;
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for (const word of words) {
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if (currentChunk.length + word.length + 1 < c.MAX_GRAPHEMES - 10) {
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currentChunk += ` ${word}`;
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} else {
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currentPart += sentence;
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currentGraphemes += sentenceGraphemes;
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chunks.push(currentChunk.trim());
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currentChunk = word;
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}
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}
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if (currentPart.trim().length > 0) {
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rawParts.push(currentPart.trim());
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if (currentChunk.trim()) {
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chunks.push(currentChunk.trim());
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}
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const totalParts = rawParts.length;
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const finalParts: string[] = [];
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for (let i = 0; i < rawParts.length; i++) {
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const prefix = `[${i + 1}/${totalParts}] `;
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const base = rawParts[i];
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if (graphemeLength(prefix + base) > MAX_GRAPHEMES) {
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const segmenter = new Intl.Segmenter("en-US", {
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granularity: "word",
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});
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const words = [...segmenter.segment(base ?? "")].map((w) => w.segment);
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let chunk = "";
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let chunkGraphemes = 0;
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for (const word of words) {
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const wordGraphemes = graphemeLength(word);
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const totalGraphemes = graphemeLength(prefix + chunk + word);
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const total = chunks.length;
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if (total <= 1) return [text];
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if (totalGraphemes > MAX_GRAPHEMES) {
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finalParts.push(`${prefix}${chunk.trim()}`);
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chunk = word;
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chunkGraphemes = wordGraphemes;
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} else {
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chunk += word;
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chunkGraphemes += wordGraphemes;
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}
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}
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if (chunk.trim()) {
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finalParts.push(`${prefix}${chunk.trim()}`);
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}
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} else {
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finalParts.push(`${prefix}${base}`);
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}
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}
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return finalParts;
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return chunks.map((chunk, i) => `(${i + 1}/${total}) ${chunk}`);
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}
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export async function multipartResponse(content: string, post?: Post) {
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const parts = splitResponse(content);
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+
const parts = splitResponse(content).filter((p) => p.trim().length > 0);
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let root = null;
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let latest: PostReference | null = null;
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let latest: PostReference;
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let rootUri: string;
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82
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for (const text of parts) {
128
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if (latest == null) {
129
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if (post) {
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latest = await post.reply({ text });
131
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} else {
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latest = await bot.post({ text });
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}
83
+
if (post) {
84
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rootUri = (post as any).rootUri ?? (post as any).uri;
85
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latest = await post.reply({ text: parts[0]! });
86
+
} else {
87
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latest = await bot.post({ text: parts[0]! });
88
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rootUri = latest.uri;
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+
}
134
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135
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root = latest.uri;
136
-
} else {
137
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latest.reply({ text });
138
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}
91
+
for (const text of parts.slice(1)) {
92
+
latest = await latest.reply({ text });
139
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}
140
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141
-
return root!;
95
+
return rootUri;
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}
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/*