Glossary

Plain-language definitions of the terms you'll meet across Polaris. For how these fit together, see Concepts & Roles.

Advisor : The read-only agent that answers questions and runs verbs against the published corpus, always with citations. Named Counselor in code. → Advisor guide

Brain : A single tenant's governed knowledge base. Each tenant user is bound to one brain.

Brain state : Where a brain is in its life: empty (no content), building (has drafts), or published (a certified version is live).

Candidate : A source that Scout discovered (or you uploaded), awaiting a decision to target (send for curation) or reject.

Certify : The step that runs a safety hard-gate over the draft and, on success, publishes a new version. → Librarian

Change set : A bundle of proposed knowledge units (facts, rubrics, graph entities) extracted from one document, awaiting human review in the Librarian.

Citation : The source passage that grounds a served claim. Polaris is cite-then-verify: an answer isn't served unless it's supported.

Corpus : The body of published knowledge a brain serves from.

Escalation : An item within a change set that requires an explicit reviewer decision before the change set can be committed.

Flag : A drift or integrity issue that Sentinel raised against an already-ingested source (freshness, temporal, grounding, conflict, under-support).

Grounding : Whether a claim is actually supported by its cited source. Broken grounding is one thing Sentinel flags.

HITL (human-in-the-loop) : The principle that a human reviews and approves every change before it reaches the corpus. The Librarian is the gate.

Knowledge unit : An individual fact or rubric inside a change set that you include or exclude during review.

Librarian : The single write gate — ingests documents, hosts the review gate, and certifies/publishes. → Librarian guide

Rubric : A criterion the brain uses to assess or evaluate — one kind of knowledge unit.

Scout : The outward discovery agent that finds net-new web sources and stages them as candidates. → Scout guide

Sentinel : The monitoring agent that watches known sources for drift and raises flags. → Sentinel guide

Sweep : A Sentinel run that re-checks watched sources and produces flags.

Target : To send a candidate from Scout into the Librarian's curation queue.

Tenant : A customer of the platform. Each tenant operates one brain; platform admins operate the fleet of tenants.

Version : An immutable, certified snapshot of the corpus. The Advisor and Wiki serve from published versions only.

Wiki : The human-readable, cited, searchable view of the published brain, generated at publish time. → Wiki guide