Independent multi-AI context layer

Write your context once. Use it everywhere.

Configure ChatGPT, Claude and Gemini around the way you work, and keep them up to date when the platforms change.

see what McKyntext produces

The diagnostic is not open yet. This page describes exactly what it will produce.

An open professional register: ruled columns, dated entries in ink

A register kept properly: an entry, its date, its source

3 platforms in V1

ChatGPT, Claude, Gemini

1 source of truth

a versioned profile that belongs to you

0 mega-prompt

each piece goes where it belongs

§ 01

Still repeating the same information to ChatGPT, Claude and Gemini?

Who you are, who you serve, the form the output must take, what must never be said, the client nobody names. That context lives in your head and in dozens of pasted paragraphs.

01The mega-prompt

One giant text pasted everywhere. It exceeds the limits, mixes durable facts with temporary ones, and ages the moment an interface changes.

02Native memory

Each platform accumulates its own memory, which you do not choose, cannot audit, and which stays with the vendor.

03Prompt libraries

They sell more text, not a structure. They never say what is durable, where to paste it, or what fits within the limit.

The valuable asset is not the prompt. It is the structured context profile — and compiling it for each platform must be deterministic.

§ 02

One diagnostic, one profile, one compilation per platform

10 to 12 questions with clickable examples. No account and no payment before the result. Target: 8 minutes from the first question to an installed configuration.

  1. 01DiagnosticRole, objectives, audience, recurring tasks, formats, tone, rules, mistakes to avoid, projects. One question per screen, never a large empty box.
  2. 02Privacy reviewNames, emails, phone numbers, clients and identifiers are detected and masked before any call to a model. You unmask, or you mask more.
  3. 03Context ProfileA structured, versioned object: every field carries its scope and its stability. You correct it line by line.
  4. 04CompilationDeterministic. Classification, destination and limits are never decided by a model. Models extract and rephrase, nothing more.
  5. 05Installation guidePer Configuration: what, why, where exactly inside the platform, and one line to tick. Then three witness prompts to verify.

Compilation

context profile · v3

ChatGPT

  • Global Instructions
  • Project Instructions
  • Memory Recommendation

Claude

  • Global Instructions
  • Project Instructions
  • Style
  • Skill

Gemini

  • Memory Recommendation
  • Gem
  • Gem Instructions

Capabilities and destinations to be verified for your country and your plan. Every registry entry carries its source and its date.

§ 03

What you receive, platform by platform

One card per Configuration, never one blob. Each card carries its destination, its reason, its character count against the limit, its version and its date.

context profilev3 · verified 21 August 2026
identityFinancial advisory practice, 6 people, Lyonglobaldurable
audienceFinance directors of SMEs, 20 to 200 staffglobaldurable
output_formats2-page memo, numbered headings, assumptions at the endglobaldurable
never_doNever name a client, never state a figure without its sourceglobaldurable
current_focusRebuilding the monthly reporting, until Decemberprojectquarterly
projects[0]Cash-flow audit — internal file 2026-04projectvolatile
do_not_rememberClient name, addresses, contract amountsexcluded
14 fields · 2 scopes · 1 projectexportable · deletable
Global InstructionsChatGPT

Where: account settings, custom instructions.

1,842 / 3,000 characters — fits within the limit

v3 · verified 21 August 2026

copydownload
SkillClaude

Where: account settings. A SKILL.md file to upload.

to be verified for your country and your plan

v3 · verified 21 August 2026

Example. Real limits and installation paths are re-read at every compilation, with their source and their date.

Three index cards laid side by side on ruled paper

The promise is kept when you tick the last line of the guide.

The page confirms “Configuration installed”. Your working rules now live inside the platform, in the right places, without a single pasted mega-prompt.

§ 04

What leaves, and what never will

One screen before any call to a model, never skippable, never set to “send everything”. We do not keep your raw text.

What will be sent

Scoping memo for [CLIENT_1], sent to [CONTACT_1] ahead of the board meeting.

2 masked spans · pseudonymised text

What will never be sent

  • excludedYour client's name
  • excludedAddresses and phone numbers
  • excludedIdentifiers and secrets
  • excludedAny field marked do_not_remember
no-AI mode availableprofile exportpermanent deletion
§ 05

The platforms change. Your context does not.

We keep a register of each platform's capabilities: limits, installation paths, availability by country and plan, source and verification date. When an entry moves, we know which profiles are affected.

Version history

v314 April 2026audience edited · 2 cards to reinstall
v212 March 2026project added · 1 card to reinstall
v12 March 2026initial profile · 3 platforms

Nothing is overwritten. Restoring an older version creates a new version.

Platform updates

Claude18 August 2026confirmed

Installation path for one capability changed. 2 of your Configurations are affected.

ChatGPT4 August 2026to verify

Character limit for custom instructions to be re-verified.

Gemini21 July 2026confirmed

Availability of one capability extended to new countries.

Recompiling what moved, and nothing else: “3 items to reinstall, 5 unchanged”.

The only promise we keep by email: we write to you when one of your platforms changes. Not before.

§ 06

Passes, not a subscription

One-time purchase, duration stated next to the price. At expiry the account returns to Free and the profile is never deleted.

Free

0 €

no time limit

  • 1 context profile
  • Privacy review
  • 1 platform of your choice, compiled and installable
  • Installation guide and witness prompts

Pass Pro Founder

39 €

one time, 12 months of access

  • All 3 V1 platforms
  • Several profiles and versioning
  • Recompilation and guides kept current
  • Platform update alerts

reserved for the first 100 buyers

Pass Team Founder

290 €

one time, 12 months, up to 5 members

  • Workspace
  • Company Context and Role Pack
  • Shared rules and administration
  • Member onboarding

Pass Pro at 69 €, one time, 12 months, is prepared and will be activated after the first 100 passes. Purchase opens with the product.

Teams

Four layers, kept separate by the engine. This is the layer no vendor's personal memory will provide.

Company Context
Role Pack
Personal Context
Project Context
§ 07

Clarifications

What we claim, and what we do not. The position is narrow, and true.

This is not a prompt library

We do not sell text. We keep a structure; the text is its output, disposable and recompilable.

Models decide nothing

They extract and rephrase, on masked text. Architecture, scope, destination and limits are deterministic.

No API to wire up

Everything happens in the chat window, with exact paths and a copy button.

Copy-paste stays manual

We have no access to your ChatGPT, Claude or Gemini account, and pretending otherwise would be a lie.

No measured gain promised

We state what the product does and what it does not. Anything uncertain is marked uncertain.

You leave with your profile

Export of the context profile and of every Configuration. Permanent deletion, stated plainly before it happens.

Next step

Your AI can remember. McKyntext decides what deserves to be.

The diagnostic opens soon: 10 to 12 questions, a privacy review, a versioned profile, one platform configured.

read how it works again