forgein›for ChatGPT
ChatGPT Custom Instructions, automated

Your Custom
Instructions, alive.

Stop writing a bio for ChatGPT. Generate actual instructions — from your current project, your team conventions, your sprint context — and refresh them whenever your work changes.

Get started free →Open ChatGPT ↗
Free adapter · No API key needed·Two-field output for Custom Instructions
forgein › contexts › work — ChatGPT instructions
About You I'm a developer working on a Next.js 15 /Postgres / Drizzle ORM stack. My team usesconventional commits, TypeScript strict mode,and Express for API routes. Sprint 14 endsJul 18 — focused on billing and org members.Response Instructions Be direct and specific. Prefer complete codeover explanations. Match our stack conventions.Never suggest auth changes during a sprint freeze.
Why forgein for ChatGPT

Custom Instructions are a
frozen snapshot.

1,500 characters, written once, never updated. Every ChatGPT conversation starts with instructions that describe a version of you that no longer exists.

01 — INSTRUCTIONS
Custom Instructions go stale fast

ChatGPT's Custom Instructions are limited to 1,500 characters and you wrote them once, months ago. Your stack changed. Your project is different. Your team has new conventions. The instructions you set then have nothing to do with what you're doing now.

02 — CONTEXT
Your AI should know this version of you

A bio is not context. "I'm a developer who likes concise answers" doesn't tell ChatGPT about your auth system, your sprint deadline, or that you're in the middle of a database migration. forgein fills that gap — specific, current, actual project context.

03 — SYNC
One memory. Every GPT conversation.

Update your forgein context once — add a decision, change a project note, log a team convention — and the next time you open ChatGPT, the new instructions are ready to paste. No more maintaining multiple places.

Setup

Four steps.
Under two minutes.

No plugins. No API keys. forgein generates two ready-to-paste fields that fit exactly into ChatGPT's Custom Instructions form.

01
Create account
Sign up at app.forgein.ai. Free forever for individual use. Work context + ChatGPT adapter included.
02
Build your context
Add memory files: coding conventions, current project notes, team norms, sprint goals. Edit in browser or sync from your machine with /forgein mem sync.
03
Get Custom Instructions
Open Contexts in the dashboard. Click "Get ChatGPT Custom Instructions". Two fields are generated: About You and Response Instructions.
04
Paste into ChatGPT
Go to chatgpt.com → Settings → Personalization → Custom Instructions. Paste each field. Done — ChatGPT now has real context.
What forgein generates

The ChatGPT adapter outputs two separate fields formatted for ChatGPT's exact Custom Instructions layout: an "About You" block and a "Response Instructions" block. Each is scoped to under 1,500 characters.

  • —About You: your role, stack, project, team context
  • —Response Instructions: conventions, style, constraints
  • —Two separate copy buttons — paste one at a time
  • —Regenerate any time your project changes
chatgpt.com → Settings → Custom Instructions
About youWhat would you like ChatGPT to know aboutyou to provide better responses?
I'm a developer working on Next.js 15 / Postgres.Conventional commits. Sprint 14, ends Jul 18…
How would you like ChatGPT to respond?
Be direct. Prefer complete code. Match ourstack conventions. No auth changes during freeze.
⚙
Custom GPT action (advanced)

Instead of copy-pasting, connect forgein as a ChatGPT action. The GPT pulls your context at the start of every conversation — and can write new insights back to your memory during the chat. Import the OpenAPI schema at api.forgein.ai/api/adapters/chatgpt/action-schema into any Custom GPT configuration.

Open GPT builder ↗
One context. Every tool.

Switch AI freely.
Your context stays.

The same forgein context flows to Claude, ChatGPT, Gemini, and Copilot. Define it once, use it everywhere.

⚡Claude CodeLive
Full memory sync, skills, team sharing, /forgein CLI.
💬ChatGPTYOU ARE HERELive
Generated Custom Instructions — paste into ChatGPT settings.
⌥GitHub CopilotLive
.github/copilot-instructions.md managed across repos.
◆GeminiLive
Generated system prompt for Gems — paste into Gem config.
⊗CursorLive
.cursorrules generated from your context — paste to any repo.
⊞WindsurfLive
.windsurfrules generated from your context — paste to any repo.
⬡MCP ServerLive
JSON-RPC 2.0 server — any MCP-compatible tool connects natively.
Pricing

Free forever for individuals.
Pro when you need to scale.

The ChatGPT adapter, work context, and memory sync are free. Pro adds Home + Family contexts, unlimited projects, and team sharing.

Free
$0 / forever

Full ChatGPT adapter and memory sync for individual developers.

  • ✓Work context — unlimited files
  • ✓ChatGPT Custom Instructions adapter
  • ✓Cloud memory sync (3 projects)
  • ✓Dashboard + cloud editor
  • ✓Claude Code, Copilot & Gemini adapters
  • ✓1 API token
  • —Home + Family contexts
  • —Team memory sharing
Create free account →
ProPOPULAR
$4.99 / month

Remove the limits. All contexts, unlimited projects, team sync.

  • ✓Everything in Free
  • ✓Home + Family contexts
  • ✓Unlimited memory projects + files
  • ✓Team memory sync
  • ✓10 API tokens
  • ✓Private skill registry
  • ✓Priority support
  • ✓New-hire warm-start flow
Get started →

Give ChatGPT
actual context.

Free forever. No API key required.

Create free account →Open ChatGPT ↗