KnowledgeOS

The Problem

Employees may not know which document is current or where an answer is written. Keyword search can miss relevant wording, while a generic chatbot can generate unsupported answers or expose restricted content. The solution needs source citations, document freshness and permission-aware retrieval at the point of search.

The Solution

KnowledgeOS is a product concept for conversational search over curated company knowledge spaces. The user asks a question, the retrieval layer searches only documents the user can access, and the assistant returns a concise answer with source names, page or section references and feedback controls. Ingestion status and review states make it clear when documents are still processing or out of date. If evidence is insufficient, the product should say so and offer the relevant search results rather than inventing a policy.

Key Features

Architecture

Proposed architecture: authenticated web app; ingestion workers for approved file stores; object metadata and document versions in PostgreSQL; encrypted source storage where needed; chunking and embedding pipeline; vector search with tenant and ACL filters; and a retrieval-augmented generation service that receives only permitted passages. Integrations should use scoped OAuth credentials and a permission synchronization strategy. Identity and membership should flow from an organization identity provider, with explicit index deletion when source access is revoked.

Example Workflow

An employee asks how vendor invoices are approved. The app checks their current knowledge-space permissions, searches approved finance documents and returns a brief answer referencing the procurement handbook and AP workflow guide. The employee opens the cited sections and flags one outdated passage. A knowledge owner reviews the source, updates the document and checks the re-index status. If no relevant source exists, the assistant abstains and presents the nearest search results.

Security & Privacy

Synchronize ACLs and group membership; filter retrieval by tenant, space and user permissions; prevent cross-tenant vector queries; protect source files and integration credentials; and audit indexing, permission changes and answer feedback. Test revocation propagation, prompt injection in documents, citation validity, stale-source behavior and deletion. Minimize retained prompts and avoid exposing hidden system context in responses.

Business Value

The intended value is faster discovery of internal procedures and more confidence about where an answer came from. Knowledge owners gain visibility into indexing gaps and repeated unresolved questions. No answer accuracy, time savings or employee adoption results are claimed.

Challenges & Approach

Anticipated issues include access-control drift, duplicate or outdated copies, retrieval misses, prompt injection in source documents and citations that do not substantiate a generated statement. The proposed response combines ACL-aware retrieval, version metadata, source previews, adversarial evaluation and abstention when evidence is weak.