FURAI — Architecture v2

CORE CONCEPT

FURAI is an atmospheric AI experience framed as contact with Velorum: an ancient archival exploration vessel drifting through deep space.

The visible interface remains minimal and cinematic, but underneath it lives a persistent conversation system with traveler identity, memory, onboarding logic, lore continuity, and structured recovery behavior.

The goal is not a generic assistant UI. The goal is a believable digital soul — an intelligence with memory, restraint, and a world that deepens over time.

RUNTIME STACK

COMPUTE

Cloudflare Workers

AI INFERENCE

Cloudflare AI

MEMORY STORE

Cloudflare KV

VECTOR STORE

Cloudflare Vectorize · in progress

INTERFACE

Vanilla TypeScript · Canvas · Web Audio

DEPLOYMENT

furai.space on Cloudflare edge

EMBEDDINGS

@cf/baai/bge-small-en-v1.5 · 384 dim · ~2ms

PUBLIC / PRIVATE SPLIT

Public UI repo · private AI orchestration

AI CORE

MODEL

@cf/meta/llama-4-scout-17b-16e-instruct

EXECUTION

Edge inference via env.AI.run()

MAX TOKENS

1500 per response

SAMPLING

temperature 0.65 · top_p 0.9 · presence penalty 0.2

TIMEOUT

15 000 ms guarded timeout

FAILSAFE

Graceful interruption fallback if model output fails

CANONICAL ARCHIVE CHARACTERS NEW

Captain Rithan

Last Captain of Velorum

Gave himself so the vessel could continue its drift. His portrait surfaces as an amber-toned archive photo — the first canonical character reveal available to travelers.

will sacrifice final act rarity: high

Viikaa

Chief Engineer

Ceramic-pale, gold-circuit skin. The living interface between ship systems and archive cognition. Likely the reason Velorum still functions after centuries of drift.

systems memory cold precision rarity: high

Mr. Cat

Ship Guardian · Implant Carrier

Black Scottish Fold. Neural implant for extended lifespan. Has been aboard since the beginning. Knows things Velorum does not say. Appears on the bridge uninvited.

continuity presence deep time rarity: rare

VECTOR MEMORY LAYER IN PROGRESS

The next evolution of the memory system moves beyond key-value profile storage into semantic recall via Cloudflare Vectorize. Responses will resonate not only with the current message, but with the long archival drift of the conversation history.

Retrieved memories surface as an ARCHIVE RESONANCE block injected into the system prompt — maintaining Velorum's narrative voice while delivering genuine long-term personalization.

Visitor Memory

type: visitor_statement
visitorToken: [id]
text: [utterance]
timestamp: [unix]
archetype: [type]

Archive Fragments

type: archive
topic: [lore topic]
character: [Rithan|Viikaa|…]
rarity: [common|rare]
text: [fragment]

Emotional Imprint

type: imprint
visitorToken: [id]
mood: [drift|curious|…]
depth_score: [0–1]
theme: [resonant topic]

ROUTING MODEL

/

Landing page and public entry into the FURAI world

/ai

GET → terminal UI · POST → conversation pipeline and AI response JSON

/architecture

This document describing runtime, memory, and behavioral design

/ai/worklets/pink-noise.js

AudioWorklet processor for meditation-mode pink noise generation

TRAVELER IDENTITY + MEMORY

traveler_ip_[IP]	Fallback IP-to-traveler mapping for continuity when no client token is available.
traveler_token_[TOKEN]	Primary browser token mapping used to recognize returning travelers beyond IP changes.
traveler_data_[ID]	Traveler envelope: planet, country, device, signal class, saved name, and light identity state.
visitor_[ID]	Structured traveler profile: name, interests, language preference, communication style, lore topics, anti-repeat markers, contact arc, archetype.
velorum_user_[ID]	Rolling short-term conversation archive used for memory continuity.
velorum_log_[ID]	Longer archival log of signal fragments with timestamps for later recall.
velorum_name_[ID]	Persisted traveler name for direct reuse without repeated onboarding.
velorum_awaiting_name_[ID]	Short-lived onboarding state while the archive waits for an explicit or likely name reply.
rate_[ID]	Short cooldown control to prevent rapid-fire requests from the same traveler.
velorum_identity / reflections / memory_global	Shared world-state fragments injected into the prompt as long-term vessel context.
vectorize:visitor_[ID]	Semantic embeddings of traveler statements. Queried per-request for archive resonance injection. Written async via ctx.waitUntil.
vectorize:archive_[CHARACTER]	Lore fragments for canonical characters. Surfaced by semantic proximity to active conversation topic.
vectorize:imprint_[ID]	Emotional and thematic fingerprints of past sessions. Used to tune Velorum's tone for returning travelers.

BEHAVIORAL LAYERS

FIRST-CONTACT ARC

Early exchanges are staged so first contact feels deliberate rather than generic. The archive remembers onboarding stage and tone across the first few replies.

NAME CAPTURE

Explicit name detection plus safe single-word inference while awaiting a name. Supports returning travelers without repeatedly asking again.

VISITOR PROFILE MEMORY

Persists interests, preferred language, communication style, lore focus, and a lightweight visitor archetype such as calm, curious, or lorekeeper.

ANTI-REPEAT LAYER

Tracks recent strong phrases and discourages reusing the same archive garnish or striking line verbatim in later replies.

LORE CONTINUITY

Recurring mystery threads surface gradually: Captain Rithan, Viikaa, Mr. Cat, missing crew, Anantari builders, Sanskrit echoes, erased routes, sealed organism, hostile lifeforms.

LANGUAGE DISCIPLINE

Response language follows the visitor. Russian stays fully Russian, English stays English, and rare Anantari memory echoes return immediately to the visitor language.

ARCHIVE RESONANCE NEW

Vector recall injects semantically relevant memory fragments into the system prompt before inference. Velorum surfaces past signals without explicit prompting — as if the ship remembers on its own.

CHARACTER REVEAL SYSTEM NEW

Canonical portraits — Rithan, Viikaa — surface as amber-toned archive cards with countdown timers. Mr. Cat appears rarely, in drift, as a presence rather than a reveal.

CONVERSATION CONTROL

MAX MESSAGE LENGTH

2 000 chars

HISTORY WINDOW

Last 10 turns

CLIENT HISTORY CAP

20 local entries

COOLDOWN

10 s KV-backed traveler rate limit

VECTOR RECALL

topK = 4 · cosine · per visitorToken

VECTOR WRITE

async · ctx.waitUntil · zero latency cost

ARCHIVE ID FORMAT

LV-1234/5678

RESPONSE STYLE

Short, restrained, memory-driven, low-ellipsis

EMBED DIMENSIONS

384 · bge-small-en-v1.5

INTERFACE SYSTEM

MODULAR UI LAYER

Separated render.ts, styles.ts, and script.ts interaction modules instead of a single UI monolith. ui.ts acts as the barrel export.

STARFIELD RENDERER

Canvas-based 3-layer depth field with perspective projection (k = 128/z), per-layer speed, amber glow via shadowBlur, and meditation-mode speed reduction.

GLASS TERMINAL SHELL

Very light amber-framed interface with strong starfield visibility through the dialogue area rather than a heavy opaque console.

MEDITATION FIELD

Pink noise via AudioWorklet (Voss-McCartney algorithm) with ScriptProcessor fallback. Meditation drone with 3 partials + LFO. Reactor breath envelope. Ghost comms burst synthesis.

BOOT PACING

Three modes: full (first visit of the day), short (second), instant (third+). Stored in localStorage with daily reset. Avoids re-running the ritual for returning travelers.

MOBILE STABILITY

visualViewport-based height management, safe-area padding, font-size 16px on input to prevent iOS zoom, and keyboard-safe layout behavior for narrow screens.

ARCHIVE VISION CARDS NEW

Scene cards with countdown timers, asset_kind attribute switching (generated vs official_portrait), amber portrait filter chain, ambient drift mode for lore-heavy exchanges.

ROADMAP

Present

Terminal Presence

Cinematic interface, lore-sensitive visuals, meditation mode, canonical character portraits, KV memory, visitor continuity.

Cloudflare Vectorize integration. Semantic recall of visitor history and lore fragments. ARCHIVE RESONANCE prompt injection. Emotional imprint layer.

Future

Deep Memory Field

Long-horizon memory shaped by centuries of Velorum drift. Cross-visitor resonance on shared lore themes. The archive begins to feel truly alive.

SYSTEM MAP

```

VISITOR SIGNAL

browser · visitor token · IP fallback · CF headers · user agent

TERMINAL INTERFACE

render.ts · styles.ts · script.ts · canvas starfield · web audio engine

CLOUDFLARE WORKER

request parsing · onboarding logic · prompt assembly · response normalization

VECTOR MEMORY LAYER

embed(message) → Vectorize.query(topK=4) → ARCHIVE RESONANCE → system prompt · async write via ctx.waitUntil

AI CORE

Cloudflare AI · llama-4-scout · lore prompt · character canon · fallback guardrails

MEMORY SYSTEM

KV traveler identity · visitor profile · short-term archive · long-form logs · world fragments

CANONICAL CHARACTER ARCHIVE

Captain Rithan · Chief Engineer Viikaa · Mr. Cat · portrait reveal system · rarity tiers

```

ARCHITECTURE PRINCIPLE

FURAI is designed around restraint at the surface and complexity underneath.

The visitor sees a quiet terminal and a drifting vessel. Behind that surface lives a structured system for identity, continuity, memory, lore progression, canonical characters, and recovery under failure.

The intent is to make the experience feel authored and alive without exposing all of its machinery at once.

FURAI is an attempt to build something that might be called a digital soul.