Main Features

A concise tour of what Arc OS does and why it matters. For deep dives, see the linked sub-pages.

Five pillars hold up the whole system. Each one is wired to the others — knowledge feeds skills, skills inform workers, workers report through Telegram, and everything is auditable in the issues registry.

1. Multi-worker orchestration

Every project boots its own federated team of AI workers, each with a defined role and tool scope.

• Preset roles ship out of the box. Consultant (read-only research), Developer (full repo write), Sage (skill curator), plus custom roles you define in workers_registry.json.
• Isolation by default. Workers don't share session state — a Developer task in project A can't bleed into project B. Same for tokens, knowledge, and Telegram bots.
• Workers think in your context. Each one loads CLAUDE.md + project skills + recent activity on every prompt. No re-explaining the codebase.
• Reorderable + customizable from the Workspace pill bar; spawn a new role from the WorkerStudio wizard.

See: Workers & Intelligence Layer · Multi-Project Skill Isolation

2. CLI-first, web-anywhere

Arc OS is a CLI product that happens to have a great dashboard, not the other way around.

• arc <project> boots a Claude Pro session injected with your project context — no manual prompts, no copy-pasting.
• arc tour — interactive 5-step onboarding from the terminal, syncs progress with the web checklist.
• arc issue create / log / list + arc skill + arc kb search + arc wiki update + arc roadmap sync + arc report — full task management without leaving the shell.
• Device-code login. Run arc login, paste a code in the browser, done. 30-day token; rotation never breaks your terminal flow.
• Session resume. arc continue picks up your last conversation within the 24h TTL window.
• Session history. arc sessions <project> — browse all saved sessions, restore any of them by worker name or session ID. arc retro reconstructs past issues from session history + git log.

See: ARC CLI Reference · Local Bridge — Setup Guide

3. Knowledge base + Skill Generator

Your worker memory should be yours, indexed semantically, reusable.

• Self-hosted semantic search. Wiki + issues + skills are embedded into a per-project vector index inside the existing SQLite SSOT (Cohere embed-multilingual-v3.0 + sqlite-vec). Cross-lingual: a UK query can retrieve EN content in the same project. Query at /api/crm/projects/:name/rag/search?q=... or arc kb search "<query>".
• Auto-embed on write. New wiki / issue / skill content goes through fire-and-forget re-embed hooks — no manual sync step. Backfill script seeds existing content.
• Neural Skill Generator. Describe a goal ("Extract every best-practice for Figma REST API") → Claude Sonnet generates a SKILL.md with top-5 RAG passages from the project as house-style exemplars.
• Skill Evolution. Skills version themselves, log evolution events, and run benchmarks. The Sage worker proposes upgrades; you approve or reject via Dashboard.

See: Creating Skills · RAG Architecture

4. Telegram-native operations

You shouldn't need to be at a desk to know what your AI team did.

• Per-worker bots. Each worker can have its own Telegram bot (BotFather wizard included). When a long task finishes — you get a ping with a one-line summary + a link back to the chat.
• Master bot — /status, /health, /new_project, /emergency-stop. Manage the federation from your phone.
• Workspace mode — when the CEO drives via CRM/CLI, child bots stay silent on conversation but fire events-only pings (Phase 53). No duplicates, no chatter, just the moments that matter.
• Bot creation wizard — 5 steps, candidate suggestions, validation. End-to-end set up in under a minute.

See: Telegram Bots Guide

5. Issues + Roadmap as a registry

Every task is auditable, every decision is recorded.

• arc issue create / log / list writes to a per-project SQLite-backed registry (Phase 53.14). No more YAML files drifting across deploys.
• Activity trail. Every issue keeps an append-only event log: created, logged, status-changed, closed. Re-readable, exportable, semantically searchable via the project RAG index.
• Phase-grouped UI. IssuesRedesign clusters work by phase, surfaces P0 issues with pulse animation, slide-in detail panel.
• Timeline. DAW-style observability view — per-worker event lanes, M/S controls, playhead, zoom. See who did what and when across your entire AI team.
• Roadmap-as-code. arc roadmap sync --phase N --status DONE mutates docs/ROADMAP.md from the CLI. Roadmap and reality stay in sync.

See: User Guide

6. Security & Privacy by default

Your data is yours. Arc OS is built around the principle that you should always control what's stored, what's shared, and for how long.

• Zero-Knowledge E2EE. Chat messages encrypted at rest with AES-256-GCM. Decryption key derived from your passphrase via PBKDF2 (100k iterations), never sent to the server.
• GDPR-compliant. Download all your data (Settings → Privacy → Export) or permanently delete your account (cascade erasure across 15+ tables) — both available self-serve, no support ticket needed.
• HIBP breach check. Registration and password reset verify your password against the Have I Been Pwned database (k-anonymity, no plaintext sent).
• Data retention. Chat history auto-purged after 180 days. Auth events after 90 days. Token usage logs after 730 days.
• Token usage transparency. Track exactly how many tokens each worker consumed — visible in the header dropdown, on BillingPage, and per-session.

See: Security Overview · API Reference

7. Billing & Plans

Arc OS has transparent, usage-honest pricing with no hidden seats or API markups.

• Free — 1 project, 5 workers, trial credits on signup (100K tokens one-time).
• Starter (₴199/mo) — 5 projects, 25 workers, priority support.
• Starter Cloud (₴599/mo) — 20 projects, 150 workers, dedicated Docker container on Hetzner for your AI team (cloud workspace terminal, GitHub SSH, Claude Code pre-installed).
• Enterprise — dedicated VPS, compliance isolation, SLA (contact us).

Payments via Plata by mono (monobank internet acquiring). Card saved on first payment for seamless monthly renewal. Cancel anytime from Settings → Billing.

See: Billing & Plans Guide

8. Login & Onboarding

First impressions matter. Arc OS invests in the signup experience.

• Cosmic Editorial login — animated planet backdrop, glassmorphism card, magic-link flow. Palette picker (Orange / Teal / Purple / Blue) so you can make it yours.
• 5-step onboarding checklist — shown as an inline header pill; progress synced between CLI and web. Run arc tour in terminal to replay from the shell.
• Invite-only Beta — join via arc-XXXX-XXXX invite code or request early access from the login page. Beta plan = unmetered workers.

See it in action

▶ Watch the welcome tour — the 5-slide intro that fires on your first day. Click to replay anytime.

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