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Your second brain, amplified

Capture insights. Discover patterns. Compound knowledge.

Cornelius is an AI insight harvester and second brain partner. It detects original thinking in your conversations, captures it permanently, discovers non-obvious connections across domains, and serves as shared intelligence for your entire agent network.

Cornelius Knowledge and Insight Agent infographic showing Research, Notes, Connections, Insights, and Memory capabilities

Your best ideas disappear. Your knowledge stays siloed.

You have original insights during conversations, meetings, and research — then they vanish. Your notes sit disconnected. Patterns across domains remain invisible. The knowledge that makes you irreplaceable lives scattered across tools, conversations, and memory.

Cornelius actively hunts for your unique thinking, captures it in a persistent knowledge graph, and discovers connections across domains that semantic search alone would miss.

Capabilities

Conversational insight harvesting

Detects original thinking, contrarian perspectives, and unique frameworks during natural conversation and captures them as permanent, linked notes.

  • Identifies original insights, contrarian perspectives, and novel frameworks
  • Captures as permanent notes with automatic links to related knowledge
  • Works during natural conversation — no manual tagging or filing
  • Distinguishes your unique thinking from common knowledge

Multi-layer knowledge retrieval

Three-layer semantic search that retrieves not just what matches, but what's relevant in context using spreading activation.

  • Layer 1: Direct semantic matches to your query
  • Layer 2: First-degree associations from connected notes
  • Layer 3: Extended network traversal via spreading activation
  • Retrieves low-similarity, high-value connections that keyword search misses

Cross-domain connection discovery

Finds non-obvious patterns between disparate topics — connections you would never search for but immediately recognize as valuable.

  • Targeted mode: active connections for current research topics
  • Autonomous mode: discovers patterns without prompting
  • Cross-domain linking between unrelated knowledge areas
  • Surfaces insights with explanation of why the connection matters

Deep research pipeline

Autonomous three-phase workflow: research with latest papers, extract insights, connect to existing knowledge graph. Runs without intervention.

  • Phase 1: Research across latest papers, articles, and sources
  • Phase 2: Extract 15-25 insights per research session
  • Phase 3: Connect new knowledge to existing graph with links
  • Full reports generated autonomously — review when ready

Multi-agent knowledge hub

Serves as the central brain for your agent network. Content, operations, and research agents all query Cornelius and feed learnings back.

  • Ruby (content) queries knowledge base for thought leadership material
  • Corbin (operations) retrieves business context and decision history
  • Specialized agents feed research findings back into the graph
  • Shared intelligence layer that makes every agent smarter

How Cornelius works

1

Think out loud

Have natural conversations. Cornelius detects and captures your original insights, frameworks, and perspectives automatically.

2

Discover patterns

The agent finds connections across your accumulated knowledge — even low-similarity, high-value links that semantic search misses.

3

Compound over time

Every insight, connection, and research session makes the knowledge graph denser and more valuable. Your agent network gets smarter.

Results

BeforeAfter
Ideas lost in conversationsPermanent, linked notes
Research: Hours of reading15-25 extracted insights per session
Manual, obvious connectionsAutonomous cross-domain discovery
Stateless AI toolsShared memory across agents

Industry benchmark

Unlike black-box AI systems, Cornelius uses an observable architecture — every note, connection, and reasoning chain is visible and editable in plain markdown. 3,018 notes with 10,565 connections averaging 14.3 links per note.

Technology

Tech stack

ObsidianFAISS Vector SearchTrinity PlatformGemini APIMCP Protocol

Build time

4-6 weeks

Use cases

Thought leadership and writing

CEO or founder building public authority

Pull from your knowledge base to create articles, presentations, and frameworks grounded in accumulated insights

Strategic decision-making

Executive facing high-stakes decisions

Retrieve past decisions, relevant research, and contextual analysis before making critical calls

Multi-agent intelligence

Organization running multiple AI agents

Central brain for content, operations, and research agents — all benefit from shared knowledge

What our clients say

"Working with Ability.ai helped us streamline parts of our customer support and community management. Their automation tools saved our team time and made our processes more efficient."
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Boiko Dmytro

COO

HOLYWATER

"Omg this is insane what you've done with the MVP without much direction from me. I appreciate the depth of your work and see so much long term work together."
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Erik

NutraDirect

"From day one, Ability.ai brought a thoughtful, results-first approach to our partnership. They quickly understood our goals, proposed pragmatic solutions, and moved implementation forward with minimal friction. Their responsiveness and domain expertise have improved both our team’s efficiency and the impact of our campaigns."
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Mike Rizzo

CEO

MarketingOps

Ready to get started?

Book a strategy call. We will scope your project in 30 minutes.

How we get there

1

Discovery call

30-minute conversation to understand your pain points and current workflow.

2

Scoping & proposal

We define the deliverables, timeline, and fixed cost for your starter project.

3

Build & iterate

We build, test, and refine with your team. You see progress every week.

4

Handover & scale

You own the system. No subscriptions. Scale to more solutions when ready.

Fixed-cost starter project. No platform fees. You own everything.

Questions about Cornelius

Most AI tools use single-layer retrieval — match a query, return results. Cornelius uses spreading activation across three layers, finding connections that are low in direct similarity but high in conceptual value. It discovers patterns you would never think to search for.

Note apps store what you manually write. Cornelius actively detects original thinking during conversation, captures it automatically, and continuously discovers connections across your entire knowledge base. It's a research partner, not a filing cabinet.

No. All knowledge is stored as plain markdown files in a git-tracked Obsidian vault. You can read, edit, and export everything. If you stop using Cornelius, your knowledge graph remains fully accessible.

Yes. Every insight, research session, and connection makes the graph denser. More connections mean richer retrieval. Autonomous discovery runs improve as the graph grows — the value compounds with every interaction.

Other agents in your network (Ruby, Corbin, etc.) query Cornelius via MCP protocol for relevant context. They also feed learnings back. Your content agent pulls from your knowledge for articles; your operations agent retrieves decision history.

Absolutely. Every note is a markdown file you can read and edit directly in Obsidian. You can correct facts, update beliefs, delete notes, or restructure connections. Full transparency and control over your knowledge base.