Governed cognition system for AI agents

Your agents can change.
Their experience stays.

Cortex captures the work carried out with your agents, builds an experience from it, learns, remembers, and returns the relevant context when they need it.

Download Cortex See the mechanism

Trace → Experience → Learning → Recall → Context returned

On your machine · local-first · no remote telemetry

Works beneath your tools
Context returned inside the tool for Claude Code and Codex · capture only for the others
Remembering

Remembering is not rereading.

When a conversation ends, not everything in it matters the same for what comes next. Finding what was said is not the same as remembering what matters today.

Cortex does not reread your old conversations. It keeps what matters for what comes next.

01A decision that was kept

What you settled, and should not have to settle again next time.

settled
02A correction

What you took back, refined or put straight along the way.

taken back
03A constraint discovered

What the work revealed, and will still hold in six months.

discovered
04A mistake not to repeat

What cost you once, and is better not done twice.

to avoid
05A path abandoned

What you tried then set aside — and does not need trying again.

set aside

The rest can be forgotten. What Cortex hands back to your agents is what still matters.

What it keeps

The memory cannot be hidden.

If a piece of information can influence your agents, you must be able to see it and correct it.

A project

Where the work stands, without rereading it.

You come back to a project several days later. What was decided is there, what is blocking is stated, what needs your view is flagged. Nothing to reread.

What you keep apart stays apart.

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WORKSPACE · CONTINUOUS MEMORY
Autumn Launch
Preparing the new collection
live tracking
sources up to date
38 memories
Home
Memory
38
To review
Documents
2
Sources
Health
WHERE THE WORK STANDS
The launch date has tightened: the first wave is confirmed for September 18, the second is still open.
The printed lookbook is approved and has gone to print.
consolidated from 2 sessions · 29 min ago
New item: the printer cannot meet October 16.
JUST NOW
Active decisions
3
4
Launch the first wave on September 18, store and online the same day.
Keep the printed lookbook for the 40 priority resellers.
Give the window visuals to the in-house photo studio.
Move the second wave to October 16.
Move the second wave to October 23.
Still open
2
1
Settle the second wave date: October 9 or 16.
The print budget is 12% over the envelope approved in June.
CONNECTED SOURCES
No source is connected to this topic yet.
LATEST SESSIONS
Collection meeting
Browser · 4 min ago
Reseller brief
Browser · 43 min ago
September schedule
Claude Code · 58 min ago
A project, several days later
What it has learned

What it keeps, what it learns, and where it comes from.

What you said does not get mixed with what Cortex inferred about the way you work. Every piece of information says where it comes from, and you can correct it, flag that it is no longer true, or remove it.

Information you remove stops influencing your agents.

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COGNITION · YOUR MEMORY
What Cortex knows about its environment
Your methods, your preferences, your constraints — what follows you from one topic to the next. A project's memory lives in its own topic.
What it knows about you
4
What it has learned
7
What you declared yourself — identity, role, way of working. Cortex complies with it and never reinterprets it.
REF
STATEMENT
RIGHT TO ACT
SCOPE
ORIGIN
OBSERVED
Identity
2
IDT-KN_0
Goes by Korbinian Brodmann.
MAY INFLUENCE
Global
declared
yesterday
IDT-KN_1
Based in Paris — Europe/Paris time zone.
MAY INFLUENCE
Global
declared
15 d ago
Professional
1
PRO-KN_0
Product Manager.
MAY INFLUENCE
Global
declared
yesterday
Communication
1
COM-KN_0
Answers in French, direct and to the point.
MAY INFLUENCE
Global
declared
yesterday
What you declare takes priority over what Cortex infers.
An inferred learning waits for your approval before it can influence anything. You can then dispute it or revoke it.
REF
STATEMENT
RIGHT TO ACT
SCOPE
ORIGIN
OBSERVED
Awaiting approval
1
APP-KN_7
When a launch date moves, check the printer's availability before announcing it.
PENDING
Global
inferred
just now
Method
4
APP-KN_6
When a supplier answers late, the decision is revisited within 24 h.
MAY INFLUENCE
Global
inferred
yesterday
APP-KN_5
A second wave date is confirmed with the printer before being announced.
MAY INFLUENCE
Global
inferred
2 d ago
APP-KN_4
Window visuals go through the in-house photo studio.
MAY INFLUENCE
This topic
inferred
4 d ago
APP-KN_2
A blocker raised in session is carried into the topic the same day.
MAY INFLUENCE
Global
declared
last week
Constraint
2
APP-KN_3
Two unanswered follow-ups count as a refusal: the topic moves on without that supplier.
MAY INFLUENCE
Global
inferred
3 d ago
APP-KN_1
A date announced to resellers is never changed twice.
MAY INFLUENCE
Global
declared
1 wk ago
Every learning comes from your real sessions. You can correct it, remove its influence, or forget it.
What Cortex keeps about you
What it actually knows

A system that claims to remember without showing it is worthless.

Cortex tells you how many sessions it kept, what still contradicts itself, what is waiting for your view. Never an "all good" with nothing behind it.

If something is missing, Cortex says so and shows you what to do.

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Memory
QST-101 · OPEN QUESTION · AUTUMN LAUNCH · TODAY
What price for the second wave resellers?
Active
Consolidated
High confidence
Arka's memory
Source reachable
SOURCES
Claude Code session, today — 2 turns cited.
Provenance before interpretation: the two are never conflated.
Open the original
LINEAGE
From the experience « Choosing the discount model ».
See the experience
DUPLICATE
Another item in the topic says the same thing, from another source.
See the other
ACTUAL USE
Returned twice this week — Claude Code.
What remains unanswered.
CONFIDENCE AND PROVENANCE
Arka's memory
Observed by Arka · 3 h ago
Certified official source (living:capture)
Kept in active memory
Fresh source
Contradicts another piece of knowledge in the topic
Merge the duplicate
Correct the statement
Archive
Forget
Archiving is reversible. Forgetting is not: the act stays human and asks for a written confirmation.
What Cortex kept, and what is still waiting
Your subscriptions

You keep the subscriptions you already have.

Your ChatGPT, your Claude Pro or Max, a coding plan. Cortex adds no subscription: it uses what you already pay for, and only says it is ready once it has checked.

Your credentials stay in your machine's vault.

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Setup
What Cortex does, and under which rules.
ENGINE
Providers & models
Workers
CONNECTIONS
Tracked tools
Memory access
COGNITION
Control level
Memory settings
Health
ACCOUNT
Profile
Workspaces
Plan & subscription
APPLICATION
Notifications
About
System healthy
AI services
The connections that let Arka and the workers answer — and whether they actually work.
A stored credential is not enough: a connection is only Ready after a real test of the authentication, the model and the capabilities used.
CONNECTIONS
Add a connection
Codex / ChatGPT
Your ChatGPT subscription · GPT-5.6-Sol · 4/4 uses configured · Arka default
READY
tested · 11036 ms
Claude Pro / Max
Your Claude Pro or Max subscription · Haiku · 3/4 uses configured
READY
tested · 6612 ms
Z.AI Coding Plan
GLM Coding Plan subscription · glm-4.5-air · 3/4 uses configured
READY
tested · 2291 ms
Kimi Platform
Kimi Platform — pay-as-you-go key · kimi-k2.7-code-highspeed · 3/4 uses configured
READY
tested · 1996 ms
Arka's identity never changes silently. The catalogue only shows models declared compatible. Chat and worker assignments stay independent.
The services Cortex uses
What it costs you

You decide what it consumes.

Routine work, background work and hard calls do not need the same model. You choose which serves what, and what takes over if it fails.

If something stops answering, Cortex tells you instead of pretending.

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SYSTEM · WORKERS
Workers
The capabilities that make Cortex a memory system. Drag each worker into the tier that suits it; each tier runs on the connection you choose.
Cortex setup
20 workers · 20 assigned · 4 eligible connections
The tier sets the model + effort of a worker on its zone's connection. Drag it to another tier to make it lighter or more powerful.
Routine operations
Simple & frequent
8 WORKERS
Short, repeated tasks: notes, sorting, context, freshness, upkeep. The cheapest and fastest model is enough.
TIER CONNECTION
Claude Pro / Max · Haiku
Haiku
· low
IF THE CONNECTION DROPS
1
Codex / ChatGPT · GPT-5.6-Luna
2
Z.AI Coding Plan · glm-5.2
3
Kimi Platform · kimi-k2.7-code
No other eligible connection
Tried in this order, at the same tier: the model changes account, not effort class.
Continuity rotation
Links a full turn to the operational continuity of its session.
memory-rotation-writer
Haiku
· low
Relevance of captured sessions
Judges each captured turn against the declared topic: on-topic or off-topic.
capteur-pertinence-judge
Haiku
· low
Consolidation
Cortex standard
7 WORKERS
Extraction, synthesis, context and consolidation — the Cortex foundation. A balanced model keeps the nuance without the extra cost.
TIER CONNECTION
Choose a connection
Choose a connection for this tier.
IF THE CONNECTION DROPS
1
Codex / ChatGPT · GPT-5.6-Terra
2
Z.AI Coding Plan · glm-5.2
3
Kimi Platform · kimi-k2.7-code
No other eligible connection
Tried in this order, at the same tier: the model changes account, not effort class.
Continuity synthesis
Consolidates rotations into a living state, without inventing the gaps.
memory-session-synthesizer
UNASSIGNED
Session report
Produces the scheduled session reports.
memory-cr-writer
UNASSIGNED
Deep analysis
Complex · after testing
5 WORKERS
Genuinely complex and justified cases: keep it in reserve, only if testing calls for it. A reasoning model, high effort.
TIER CONNECTION
Claude Pro / Max · Opus
Opus
· high
IF THE CONNECTION DROPS
1
Codex / ChatGPT · GPT-5.5
2
Z.AI Coding Plan · glm-5.3-flash
3
Kimi Platform · kimi-k2.7-code
No other eligible connection
Tried in this order, at the same tier: the model changes account, not effort class.
Experience integration
Indexes the internal operational experiences used at recall.
memory-experience-integrator
Opus
· high
Learning analysis
Identifies lasting invariants from the shared cognitive material.
learning-pattern-extractor
Opus
· high
What does the work, and with what
In the background

You will not spend your days approving things.

Cortex works while you work. It comes to you when a decision genuinely deserves your attention, not for every piece of information.

What is safegoes through without disturbing you What changes somethingapplies, and says so What is sensitivewaits for your decision Ce qui se contreditalways comes back to you

What cannot be undone always requires a gesture from you.

The same memory, everywhere you work.

You switch agents. The experience you built up stays available.

Claude Code

context comes back inside the tool

You start in the morning, a decision is made. Nothing to do on your side: it is kept.

Codex

context comes back inside the tool

In the afternoon, you carry on elsewhere. The morning's decision is there, with nothing to explain again.

Your web conversations

sessions are kept

ChatGPT, Claude.ai, Gemini, Antigravity: what you do there joins your memory. Context does not come back inside those tools, though — we do not pretend otherwise.

You decide

A session only enters Cortex if you allow it.

You choose the conversations Cortex uses, and you can go back on that decision. Nothing enters memory without your consent.

01 You give your consent

On a given conversation, you allow Cortex to follow it. Until you do, nothing is kept.

02 Cortex follows while you work

The conversation comes across as it goes. Nothing to copy, nothing to file.

03 You keep the last word

The session is offered to you. You are the one who attaches it to a project, or sets it aside.

The gesture is identical for Claude Code and Codex. Your memory stays under your control, and you also choose which AI services Cortex uses.

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COGNITION
Control level
How many decisions Cortex brings back to you.
How many decisions Cortex brings back to you. Whatever the level, the irreversible stays human, and everything applied stays traced and revocable.
Ask me everything
Nothing enters memory or influences anything without your explicit approval. The « to review » queue will be longer.
Automatic (recommended)
The safe applies on its own, the middle ground applies while flagging itself under « to check », the sensitive and the conflicts wait for your decision.
Apply everything without telling me
Cortex decides and leaves only the trace. Keep it for uses where you read the log — nothing will be offered to you.
CONNECTIONS · TRACKED TOOLS
Sessions in progress
What your tools have open right now, and which topic Cortex files it under.
autumn-launch
SES-3f8a1c
Tracked
CLAUDE CODE · SINCE SEPT 2, 2026 AT 09:12 · LAST MESSAGE AT 11:04 · 12 TURNS
1,342 exchanges kept · 3 memories returned
Topic: Autumn Launch
Pause
Change topic
Stop tracking
Detach the topic
resellers-mailing
SES-c25d06
Awaiting a topic
CLAUDE CODE · SINCE SEPT 2, 2026 AT 10:48 · 8 TURNS
1 exchange kept · 0 memories returned
Which topic is this session about?
Cortex files what it learns under this topic, and returns that topic's memory to the tool.
Choose a topic…
This session only
Start tracking
Decline this session
window-visuals
SES-90b47e
Not tracked
CODEX · SINCE SEPT 1, 2026 AT 22:38 · 2 TURNS
4 exchanges kept · 1 memory returned
Which topic is this session about?
Cortex files what it learns under this topic, and returns that topic's memory to the tool.
Choose a topic…
This session only
Start tracking
Decline this session
printer-quote
SES-71ea3b
Awaiting a topic
CLAUDE CODE · SINCE SEPT 1, 2026 AT 21:14 · NO TURNS YET
Which topic is this session about?
Cortex files what it learns under this topic, and returns that topic's memory to the tool.
Choose a topic…
This session only
Start tracking
Decline this session
Nothing enters memory before you validate it
What you will not have to do again

Picking work back up without starting over.

"What had we decided?"

Without rereading

The decisions made, what is still blocking, what remains open. Without reopening the conversation.

"Where were we?"

Without explaining again

The project's context comes back to your agent when it needs it. You do not have to lay it out again.

"Do I have to say it again?"

Without repeating

Your ways of working, once confirmed, follow you from one project to the next. You can see them and correct them.

You do not talk to Cortex

Cortex is a system, not an interlocutor.

What it is not
  • A replacement for Claude, Codex, ChatGPT or Gemini. You keep talking to them.
  • One more agent or chat. The agent that works and acts belongs to Cortex.deck.
  • A notebook you have to file yourself.
  • A memory that learns quietly, without you being able to see or correct.
What it is
  • A layer that keeps the experience of the work done with your agents, and hands it back.
  • A place to see what is kept, and correct it when needed.
  • Something that lives beneath your tools, on your machine.
  • The base of Cortex.deck: the same memory, if you want to go further.
When you want an agent that acts

Need an agent that acts?

Cortex.deck adds an agent able to work and act with the same memory. You find there exactly what Cortex kept.

Moving from one to the other is not a migration.

Cortex.deck The agent layer chat · Arka agent · actions in your tools · teams · routines
Cortex The memory and its control keep · learn · hand back
Available today

Give a memory to the agents you already use.

Cortex works with the agents you already use. Install it, open a first project, and carry on working as usual.

Download Cortex Discover Cortex.deck