ltcai 9.1.0

Lattice AI — local-first Digital Brain that keeps your knowledge durable across any AI model.

Lattice AI

Lattice AI 9.1.0 is the local-first Digital Brain platform. Code Review Completion & Fail-Closed Runtime closes every actionable finding from the July 11 review: security boundaries now deny by default, runtime and chat state have typed ownership, frontend failures stay visible and tested, and repository/release hygiene is enforced across the 9.1.0 line.

Lattice AI는 모델이 바뀌어도 내 지식과 맥락을 보존하는 로컬 우선 AI 브레인입니다.

The 9.1.0 release adds request-scoped model routing, workspace-isolated graph identities and frontend caches, fail-closed admin gates, SSRF-safe web capture, private local state permissions, and reproducible release/test isolation. The same release introduces a human-first UI: a visible knowledge journey from conversation or source capture into the living Brain, its real relationship graph, and memory-grounded automation; the empty Brain home now keeps that complete loop inside one viewport, with continuous vital motion and behavior-driven listening, recall, synthesis, and action states. Task navigation and technical detail stay calm and approachable. Telegram access requires an explicit chat allowlist and server session token; public invitation access uses signed, expiring authorization instead of a static cookie; and unknown or unreadable Knowledge Graph scope fails closed.

Your model is the voice you use today. Your Brain is the asset you keep. Lattice AI preserves conversations, documents, decisions, project context, relationships, and workflows on your computer by default. Cloud models, model downloads, update checks, and other external communication happen only after explicit consent.

It is not a ChatGPT clone, a model launcher, a graph database, or a note app. It is a Living Brain: chatting or adding a file, folder, note, or web page grows durable memory; the real graph shows how that knowledge connects; and reviewed, user-enabled automations can act from the same evidence.

Why You Need It

You need Lattice AI when:

• you ask different AI models about the same project and lose the context each time;
• your decisions are scattered across chats, notes, PDFs, folders, and tools;
• you want to switch models without rebuilding memory from zero;
• you want your AI Brain to stay on your computer by default;
• you want backup, restore, inspect, and export paths for your Brain.

이런 사람에게 필요합니다:

• 매번 AI를 바꿀 때마다 프로젝트 맥락을 다시 설명하는 사람
• 문서, 대화, 결정, 파일이 여기저기 흩어져 있는 사람
• 내 지식을 특정 AI 서비스 안에 묶어두고 싶지 않은 사람
• 로컬에 저장되는 개인 AI 브레인을 원하는 사람

What You Can Do

• Chat with a Brain that remembers useful context instead of treating every session as disposable.
• Add documents, selected local folders, notes, screenshots, and web pages with source-aware memory.
• Watch new knowledge enter the Brain and appear in a lightweight, real relationship graph before opening the full graph explorer.
• See the Brain breathe, pulse, listen, recall, synthesize, and act while the source, graph, composer, and next memory-grounded action remain visible in a single desktop or mobile viewport.
• Create evidence-linked Brain automation drafts for memory digests, project reviews, and follow-up suggestions, then explicitly enable them when ready.
• Use a recommended local model without learning model internals first.
• Keep advanced controls, audit logs, roles, and retention in a separate Admin surface.
• Export or back up your Brain as an encrypted .latticebrain archive.

One-Minute Flow

1. Launch the app and wake the Brain.
2. Create or open a local profile.
3. Let Lattice explain what this computer can run.
4. Start with the recommended model as the Brain's voice, or skip and choose later.
5. Talk to your Brain or add a file, folder, note, or web page.
6. Watch the source become memory and connect to the visible knowledge graph.
7. Ask, delegate, review, or explicitly enable a memory-grounded automation.
8. Back up, inspect, export, or restore the Brain when you need ownership actions.

Living Brain Flow

The screenshots below are the latest checked-in visual evidence captures. They keep the first-run Brain flow, memory graph, source capture, model library, system view, admin console, and review center visible as release gates while 9.1.0 completes the July 11 code review with fail-closed access control, typed runtime/model state, a decomposed chat API, honest frontend error states and unit tests, and repository/release hygiene. The captures below are the checked-in 9.1.0 visual release evidence for that product flow.

1. Wake Brain

The first screen makes the Brain the product. It explains the three-step path: confirm owner, check the computer, choose the Brain voice.

2. Login

Choose the owner of the Brain. The profile is not a SaaS account by default; it is the local identity for the knowledge you keep.

3. Recommended Models

Start with a short list: safest recommendation, faster model, stronger model. Advanced details stay available without overwhelming first-time users.

4. Install And Load

Download and load only after consent. Lattice explains model size, local execution, and network use before work starts.

5. Brain Chat

Talk normally or add a source from a single, living canvas. The default home fits the complete knowledge lifecycle into one viewport: source controls feed the breathing Brain, real nodes and animated relationships stay visible beside it, and the composer plus grounded next action remain within reach. Brain motion and its visible life signal follow real listening, recall, synthesis, and action state. Detailed memory rings, provenance, conversation history, and model/runtime proof open as overlays only when requested.

6. Review Center

Automation results are staged for review before they become durable decisions. Snooze, unsnooze, run now, approve, and dismiss actions stay explicit.

Brain Depths

The user travels inward from everyday memory to deeper structure:

Level	User name	What the user gets
Level 1	Now memory	The living Brain presence and current conversation context
Level 2	Older memory	Durable memories with source-aware recall
Level 3	Topics	Recurring themes across chats and documents
Level 4	Relationships	How decisions, people, files, and ideas connect
Level 5	Full knowledge graph	Nodes, edges, search, and focused detail for advanced exploration

Walkthrough:

Screenshot index and capture notes: output/release/v9.1.0/SCREENSHOT_INDEX.md

Install

Run from Python:

pip install ltcai
LTCAI

Run from npm:

npm install -g ltcai
ltcai

Open the local app:

http://127.0.0.1:4825/app

Apple Silicon local model extras:

pip install "ltcai[local]"

Architecture At A Glance

• Product category: local-first Digital Brain.
• Core capability: private AI memory layer for conversations, documents, decisions, relationships, workflows, and project context.
• UX metaphor: a visible source-to-memory-to-graph-to-automation journey centered on the Living Brain, not a generic chat or operations dashboard.
• Product navigation: desktop task navigation and a mobile bottom bar expose Chat, Sources, Memory, and Work; model, workspace, and admin controls live in the secondary menu.
• Desktop shell: Tauri 2 starts a localhost sidecar.
• Frontend: React, TypeScript, Vite, TanStack Query, Zustand, Cytoscape.js, React Flow, and generated OpenAPI types.
• Backend: FastAPI on localhost is the UI source of truth.
• Brain Core: independent lattice_brain package for graph, memory, context, conversations, ingestion, runtime, workflow, storage, and portability.
• Storage: SQLite is the live local Brain store; PostgreSQL/pgvector tooling is optional scale-mode planning/migration support, not the default live graph backend.
• Portability: encrypted .latticebrain archives plus backup, restore, inspect, verify, import dry-run, and confirmed restore/import flows.
• Trust boundary: local-first by default; cloud calls, downloads, Telegram, Brain Network, Docker/Postgres setup, and update checks are opt-in.
• Admin separation: normal Brain use stays separate from users, audit logs, policies, security events, retention, and index rebuilds.

See ARCHITECTURE.md for the current architecture.

Local Development

npm install
npm run dev

Main validation set:

npm run check:python
npm run lint
npm run typecheck
npm run test:unit
npm run test:integration
npm run test:visual
npm run desktop:tauri:check
npm run docs:check-links

npm run lint includes the Python Ruff baseline, frontend TypeScript lint gate, visual smoke syntax checks, and i18n literal checks.

See docs/DEVELOPMENT.md for developer workflow details.

Current Release

The current release is 9.1.0 — Code Review Completion & Fail-Closed Runtime:

• Telegram rejects every chat and callback outside LATTICEAI_TELEGRAM_ALLOWED_CHAT_IDS, and its local API bridge requires LATTICEAI_SERVER_SESSION_TOKEN instead of scanning stored sessions.
• Public invitation authorization is signed and expiring, default invitation credentials are removed, Knowledge Graph scope lookup fails closed, and desktop/knowledge/network tools use explicit policy and consent boundaries.
• App assembly exports typed runtime stages, model routing uses injected typed state, and chat history, documents, streaming, and contracts are split into focused modules.
• The React workspace distinguishes unavailable services from empty Brain data, gates success callbacks on real success, and has Vitest coverage for API result shapes, proof state, conversation state, primitives, and i18n.
• Large frontend i18n/CSS/Brain hooks and repeated runtime utilities are split, obsolete aliases and local VSIX artifacts are removed, and review documents live under docs/reviews/ as immutable history.

Expected artifacts for 9.1.0 release must use exact filenames:

• dist/ltcai-9.1.0-py3-none-any.whl
• dist/ltcai-9.1.0.tar.gz
• ltcai-9.1.0.tgz
• dist/ltcai-9.1.0.vsix
• src-tauri/target/release/bundle/dmg/Lattice AI_9.1.0_aarch64.dmg

Do not use wildcard artifact uploads. Package registry publishing remains owner-run.

See docs/ROADMAP_RECOMMENDATIONS.md for the strategic roadmap slices applied through 9.1.0 and the follow-up tracks.

Known Limitations

• External package registries are owner-published and can lag behind GitHub.
• PostgreSQL/pgvector is optional scale/migration tooling. SQLite remains the live local Brain store in 9.1.0.
• Docker, model downloads, cloud model calls, Telegram, Brain Network, and update checks require explicit user action.
• Conversation does not fabricate answers when no model is loaded.
• Agent/workflow simulation without a loaded LLM is deterministic and does not call a model; it is labeled as LLM-free/model-free rather than presented as autonomous model success.

Release History

Version	Theme
9.1.0	Code Review Completion & Fail-Closed Runtime: all July 11 review findings closed across fail-closed security, typed runtime/model/chat boundaries, honest frontend failures and tests, and repository hygiene
9.0.0	Code Review Closure & Runtime Cleanup: July 8 code-review follow-ups fixed, chat/runtime reliability improved, duplicated utility surfaces consolidated, runtime audit append paths moved to JSONL, and release metadata/artifacts synchronized
8.9.0	Scoped Memory & Tool Policy Hardening: authenticated history/KG reads are workspace-scoped, direct Tool API paths enforce registry policy, local approvals hash tokens at rest, AgentRuntime approval semantics are explicit, and frontend/runtime seams are split
8.8.0	Brain Core Extraction & Recall Proof Hardening: internal-only Brain shim layers are removed, AgentRuntime run contracts/retry budgets are tighter, Brain Chat gains conversation controls, and citation recall exposes matched evidence
8.7.0	Runtime State Hygiene & Release Evidence Refresh: model-runtime internals prefer typed state over legacy globals, compatibility sync is deprecated, 8.7.0 visual evidence is refreshed, and all release metadata/docs are synchronized
8.6.0	Desktop Capture & Navigation Reliability: native folder selection works from the Tauri localhost app, picker failures surface in Capture, web saving remains one-action, and the Brain shell sidebar/admin flow is CI-covered
8.5.0	Tool Registry Readiness & Config DI: ToolRegistry drift removed, tz_name flows through central Config into automation runtimes, and current-release documentation is synchronized
8.4.0	Action-Aware Brain Chat: explicit file create/write/save/edit requests from Brain Chat route into the governed workspace file tool so files are actually created instead of returned as code-only answers
8.3.0	Orchestrated Brain Readiness: managed legacy shim inventory, stronger AgentRuntime/workflow boundaries, unified graph ingestion, workspace-safe duplicate content, first-run onboarding, and explicit community/plugin growth path
8.2.0	Brain Brief: evidence-backed home briefing, honest empty-state guidance, recall/graph/model-proof next actions, and continued model/workspace runtime extraction
8.1.0	Intuitive Brain Home: living Brain, recent memory, connected topic, next action, and composer are visible in one product-first screen with refreshed 8.1.0 evidence and artifacts
8.0.0	Runtime Architecture Contract: AgentRuntime, ToolRegistry, central Config, server decomposition, and KG hardening are captured as machine-checkable release boundaries with exact 8.0.0 artifacts

Documentation

• docs/WHY_LATTICE.md - product philosophy.
• docs/TRUST_MODEL.md - local-first trust model.
• PRIVACY.md - privacy and external communication policy.
• ARCHITECTURE.md - current technical architecture.
• FEATURE_STATUS.md - current feature status and known limitations.
• docs/DEVELOPMENT.md - developer workflow.
• docs/LEGACY_COMPATIBILITY.md - root legacy shim map.
• RELEASE.md - release guide and current release notes.
• docs/CHANGELOG.md - historical changes.
• SECURITY.md - security posture.

License

MIT. See LICENSE.