What is xgrower-extension CLAUDE.md?

Architecture instructions for a Chrome browser extension that generates AI-assisted replies on X, formerly known as Twitter. They describe its files, sign-in process, server connection, and usage limits.

Understanding or modifying the extension’s reply generation, authentication, user status, invite-code redemption, quota checks, and X page integration.

They give an agent the project context needed to change the extension without guessing how its browser code, login system, and backend fit together.

How JoyyyceD/xgrower-extension configures Claude Code

Reuse

Borrowing it

Nothing to install: this file belongs to JoyyyceD/xgrower-extension. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file

curl -O https://raw.githubusercontent.com/JoyyyceD/xgrower-extension/main/CLAUDE.md

Clone the repo

git clone --depth 1 https://github.com/JoyyyceD/xgrower-extension

Made for: Claude Code.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

README.md

[![agentmods](https://agentmods.dev/badge/instructions/joyyyced/xgrower-extension/claude-md.svg)](https://agentmods.dev/instructions/joyyyced/xgrower-extension/claude-md)

Your own site

<a href="https://agentmods.dev/instructions/joyyyced/xgrower-extension/claude-md"><img src="https://agentmods.dev/badge/instructions/joyyyced/xgrower-extension/claude-md.svg" alt="Measured on agentmods" height="20"></a>

Per session 900 This file is loaded in full into every session.

When invoked 900 The same file — it is already loaded in full.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

Model	Per session	Once invoked
Fable 5.1	$0.00900	$0.00900
Opus 5	$0.00450	$0.00450
Sonnet 5	$0.00180	$0.00180
Haiku 4.5	$0.00090	$0.00090

Measured 8d ago against content hash 0a500118a7f5, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

xgrower-extension CLAUDE.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 8d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

CLAUDE.md · 80 lines

How it starts

The opening of the file, as written. The whole thing — 80 lines — stays where its author put it; the contents beside it link to each section on GitHub.

X Grower Extension — Architecture Notes

Overview

A Chrome extension (Manifest V3) that helps users grow their X/Twitter following via AI-powered reply generation. Users must sign in with a GrowthHunt.ai account; all AI calls go through the GrowthHunt backend (no API keys in the extension).

Architecture

Extension (Chrome MV3)          GrowthHunt Backend (Next.js on Vercel)
├── popup.ts                    ├── app/api/xgrower/generate   — AI reply generation
├── background.ts               ├── app/api/xgrower/me         — user status + quota
├── content.ts                  ├── app/api/xgrower/redeem     — invite code redemption
├── src/auth.ts                 └── lib/xgrower/pro.ts         — Pro tier check
├── src/supabaseClient.ts
└── src/types.ts

Shared Supabase: xehgrzpbhhevodxflzwg.supabase.co

Key Files

File	Purpose
`src/auth.ts`	Login, logout, session management, invite code redemption
`src/supabaseClient.ts`	Supabase JS client with chrome.storage adapter (no localStorage in SW)
`src/background.ts`	Service worker — handles `generateReply` and `trustedClick` messages
`src/content.ts`	X/Twitter content script — injects AI reply button, runs Auto Burst
`src/popup.ts`	Popup UI — auth flow, About Me, burst controls, templates, advanced settings
`src/types.ts`	TypeScript types + default templates + default advanced settings

Auth Flow

User logs in via popup (email or Google OAuth)
Supabase session stored in chrome.storage.local (not localStorage — not available in SW)
getValidAccessToken() in auth.ts scans all storage keys to find the session, auto-refreshes if expired
Every API call sends Authorization: Bearer <access_token> to https://www.growthhunt.ai/api/xgrower/*

Important: Always use https://www.growthhunt.ai (with www.). growthhunt.ai returns a 307 redirect that strips the Authorization header.

Quota System

Free: 10 replies/day, 100 replies/month
Pro: unlimited (granted via invite code = 30 days, or profiles.tier = 'paid' in Supabase)
Quota enforced server-side only — never trust client

Read the full file on GitHub · 80 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

8d ago First seen · 80 lines · 900 tokens per session scan A 0a500118a7f5

Subscribe to this mod's changes

xgrower-extension CLAUDE.md is an instructions file published in the GitHub repository JoyyyceD/xgrower-extension (41 stars, last pushed 3mo ago), licensed MIT. It adds 900 tokens to every session, about $0.0045 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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xgrower-extension: Instructions file for Claude Code