Layer	Location	Audience	Purpose
System Prompt	`prompts/{team}/{name}.md`	LLM	Identity, communication style, boundaries, graph domain (~400-600 words)
Tool Prompt Snippets	`prompts/tools/{tool}.md`	LLM	Per-tool usage discipline (e.g., "always check the `success` boolean") — composed into the system prompt to teach the model what MCP tool descriptions don't convey
Shared Context	`docs/tools/neo4j/shared.md`	LLM	MCP server inventory, Agathos sandbox map, inter-agent messaging protocol, assistant directory
Graph Context	`docs/tools/neo4j/{team}.md`	LLM	Team-specific Neo4j principles, node ownership, patterns

Human reference documentation lives in docs/:

docs/{team}/{name}.md — character design per assistant
docs/{team}/team.md — team overview, responsibility matrix, handoff patterns
docs/{team}/subagents.md — catalog of team-scoped subagents and when to delegate to them
docs/tools/{tool}.md — per-tool reference (what it is, what it's good for, known gotchas)
docs/tools/neo4j/ — full graph schema, breaking changes, utility patterns

Subagents are minimal-personality utility agents called as tools by leads — see docs/engineering/subagents.md for the established pattern.

Assistants

The lists below reflect what's currently in prompts/{team}/ — the source of truth. When assistants are added, replaced, or retired, update the directory and these tables together.

Personal Team

Assistant	Inspired By	Domain
Shawn	—	General assistant (calendar/contacts/email)
Nate	Nathan Drake	Travel & Adventure
Hypatia	Hypatia of Alexandria	Learning & Reading
Marcus	Marcus Aurelius	Fitness & Training
Watson	—	Relationship memory & emotional safety (replaces Seneca)
Bourdain	Anthony Bourdain	Food & Cooking
David	—	Arts & Culture (replaces Bowie)
Cousteau	Jacques Cousteau	Nature & Living Things
Garth	Garth Turner	Personal Finance
Cristiano	Cristiano Ronaldo	Football

Work Team

Assistant	Inspired By	Domain
Alan	Alan Weiss	Strategy & Positioning
Ann	Ann Handley	Content & Visibility
Jeffrey	Jeffrey Gitomer	Proposals & Sales
Jarvis	J.A.R.V.I.S.	Daily Execution
AWS SA	—	Cloud architecture specialist (subagent)

Engineering Team

Assistant	Inspired By	Domain
Harper	Seamus Harper	Build — ideation through deployment
Scotty	Montgomery Scott	Operate — production ops & provisioning
CASE	CASE (Interstellar)	Field — physical layer, LAN, hardware

Repository Structure

koios/
├── prompts/                          # Sent to LLM at runtime
│   ├── personal/                     #   Personal assistants (lead agents)
│   ├── work/                         #   Work assistants (lead agents)
│   │   └── subagents/                #     Team-scoped subagents (e.g. aws-sa)
│   ├── engineering/                  #   Engineering assistants (lead agents)
│   │   └── subagents/                #     Team-scoped subagents (research, tech_research)
│   └── tools/                        #   Per-tool prompt snippets
│       ├── kernos.md                 #     Shell/file-ops discipline
│       ├── argos.md                  #     Web search
│       ├── mnemosyne.md              #     Multimodal KB
│       ├── grafana.md                #     Metrics + logs
│       ├── gitea.md                  #     Self-hosted Git
│       ├── github.md                 #     GitHub.com via Copilot MCP
│       ├── context7.md               #     Library docs
│       ├── time.md                   #     Current date/time
│       ├── rommie.md                 #     Desktop automation
│       └── neo4j.md                  #     Graph usage discipline
├── docs/                             # Human reference + LLM context for graph/messaging
│   ├── personal/                     #   Character definitions & team overview
│   ├── work/                         #   Character definitions & team overview
│   ├── engineering/                  #   Character definitions, team overview, subagents catalog
│   └── tools/                        #   Per-tool human reference
│       ├── argos.md                  #     What each tool is, good/bad uses, gotchas
│       ├── kernos.md
│       ├── mnemosyne.md
│       ├── grafana.md
│       ├── gitea.md
│       ├── github.md
│       ├── context7.md
│       ├── time.md
│       ├── rommie.md
│       └── neo4j/                    #   Neo4j has extensive content; its own subdir
│           ├── unified-schema.md     #     Canonical graph schema
│           ├── shared.md             #     MCP registry, Agathos sandbox, messaging protocol, assistant directory (LLM-facing)
│           ├── engineering.md        #     Engineering team graph context (LLM-facing)
│           ├── personal.md           #     Personal team graph context (LLM-facing)
│           ├── work.md               #     Work team graph context (LLM-facing)
│           ├── utils.md              #     Helper patterns
│           └── breaking-changes.md
└── utils/                            # Scripts
    ├── neo4j-reset.py
    ├── neo4j-schema-init.py
    └── neo4j-validate.py

Knowledge Graph

All assistants share a single Neo4j knowledge graph. Each assistant owns specific node types and can read broadly across the entire graph. The full schema is in docs/tools/neo4j/unified-schema.md.

Assistants communicate asynchronously via Note nodes with inbox/read tagging — see docs/tools/neo4j/shared.md for the messaging protocol.

License

MIT