YŪREI TECH // DOMAIN-SPECIFIC AUTONOMOUS AGENTS

One cell.
A thousand cells.
One organism.

Yūrei Tech builds domain-specific autonomous agents — and the platforms they live inside. Each agent owns one domain and decides for itself. Together they bind into a mesh that shares what it learns. They wait like ghosts in your infrastructure: unseen, always on. You never notice them. That is the point.

SEE THE PRODUCTS READ THE MANIFESTO
ALONE

Each cell decides for itself — no round-trips, no waiting for a human.

TOGETHER

Cells bind into a mesh — what one learns, all of them know.

UNSEEN

The ghost never sleeps — and never gets in your way.

01 · Manifesto

Software that no longer waits to be asked.

A generalist model that knows a little about everything is a demo. An agent that knows one domain to the bone — its telemetry, its adversaries, its regulations, its edge cases — is a colleague. We build the second kind, and we build the platform underneath it so the agent has real authority instead of a chat window.

Autonomy without accountability is a liability, so every cell shows its reasoning, keeps an audit trail, and asks for a human when the stakes cross a line you set. Everything else it handles alone — quietly, in seconds, at three in the morning.

02 · What we build

DOMAIN-SPECIFIC

One domain, all the way down.

Each agent is trained, tooled and evaluated against a single field of work. Depth beats breadth when a wrong call has consequences.

AUTONOMOUS

Acts, then reports.

Detect, investigate, decide, execute — with the evidence attached. You get a decision to review, not a haystack of logs to search.

PLATFORMS

Products, not plugins.

We own the platform the agent runs in, so autonomy, privacy and audit are designed in from the first line — not bolted onto someone else's stack.

03 · The products — in development

HODOR CYBER
THE AUTONOMOUS SOCIN DEVELOPMENT

Detect, investigate and respond — in seconds.

A full security suite run by an agent instead of a queue. It assembles the whole story of an attack, isolates the host, and hands a human a decision — with the timeline, the blast radius and the confidence attached.

  • 01Telemetry, detection and triage in one platform — no SIEM tax.
  • 02Autonomous containment with four-eyes approval where you require it.
  • 03Every action reasoned, logged and reversible.
A YŪREI TECH PRODUCT
CRITICAL INC-2048 · 00:07 TO CONTAIN

Ransomware staging on win-srv-04

Agent traced lateral movement from a phished credential to shadow-copy deletion. Host isolated autonomously.

● ISOLATED AWAITING 4-EYES CONF 0.97
Credential reuse flagged — signal from HODOR MAIL
Lateral path reconstructed across 3 hosts
Host isolated · credentials revoked
Inbox · 12 E2E · KEYS ON DEVICE
  • Investor update — Q3 numbers
    Draft ready in your voice · awaiting review
    INVESTORS
  • Standup notes — auto-summarized
    3 action items extracted
    TEAM
  • Payment details changed — held
    Impersonation pattern · quarantined before delivery
    BLOCKED
SIGNAL PUSHED TO HODOR CYBER · SENDER DOMAIN NOW BLOCKED FLEET-WIDE
HODOR MAIL
MAIL, BUILT AS A SECURITY PRODUCTIN DEVELOPMENT

Private and secure — by design.

A full mail platform whose real job is defence. Every thread triaged and summarized on arrival, replies drafted in your voice, and impersonation, payload and payment-fraud attempts stopped before they reach a human.

  • 01Encrypted by default, keys on device, minimal retention.
  • 02Your mail is never training data. Not ours, not anyone's.
  • 03The inbox agent is a sensor — every catch feeds the mesh.
A YŪREI TECH PRODUCT

04 · The mesh

Fully independent — and able to talk to each other.

Each platform stands on its own. Connect them and their agents share signals over the mesh: a phishing payload caught in the inbox becomes an active detection across your fleet before anyone opens a ticket.

HODOR CYBER
SENSORS · DETECTIONS · RESPONSE
MESH LINK
HODOR MAIL
IDENTITY · CONTENT · INTENT
SHARED CONTEXT

One identity graph, one threat picture — mail and infrastructure stop arguing about who the user was.

SIGNED SIGNALS

Agents exchange signed, scoped findings — never raw mailboxes, never your content.

GROWING FAMILY

Every new domain agent joins the same mesh. Two cells today, an organism as we ship.

DESIGN PARTNER PROGRAM · 2026

Both platforms are in active development.

We are taking on a small number of design partners for Hodor Cyber and Hodor Mail. If you run a security team or a company that lives in its inbox, we would like to build with you.

We store your address only to contact you about the design partner program. How we handle it.