# Orchestration System Guide
Oh My OpenAgent's orchestration system transforms a simple AI agent into a coordinated development team through **separation of planning and execution**.
---
## TL;DR - When to Use What
| Complexity | Approach | When to Use |
| --------------------- | ------------------------- | ---------------------------------------------------------------------------------------- |
| **Simple** | Just prompt | Simple tasks, quick fixes, single-file changes |
| **Complex + Lazy** | Type `ulw` or `ultrawork` | Complex tasks where explaining context is tedious. Agent figures it out. |
| **Complex + Precise** | `@plan` → `/start-work` | Precise, multi-step work requiring true orchestration. Prometheus plans, Atlas executes. |
**Decision Flow:**
```
Is it a quick fix or simple task?
└─ YES → Just prompt normally
└─ NO → Is explaining the full context tedious?
└─ YES → Type "ulw" and let the agent figure it out
└─ NO → Do you need precise, verifiable execution?
└─ YES → Use @plan for Prometheus planning, then /start-work
└─ NO → Just use "ulw"
```
---
## The Architecture
The orchestration system uses a three-layer architecture that solves context overload, cognitive drift, and verification gaps through specialization and delegation.
```mermaid
flowchart TB
subgraph Planning["Planning Layer (Human + Prometheus)"]
User[(" User")]
Prometheus[" Prometheus
(Planner)
Claude Opus 4.6"]
Metis[" Metis
(Consultant)
Claude Opus 4.6"]
Momus[" Momus
(Reviewer)
GPT-5.4"]
end
subgraph Execution["Execution Layer (Orchestrator)"]
Orchestrator[" Atlas
(Conductor)
Claude Sonnet 4.6"]
end
subgraph Workers["Worker Layer (Specialized Agents)"]
Junior[" Sisyphus-Junior
(Task Executor)
Claude Sonnet 4.6"]
Oracle[" Oracle
(Architecture)
GPT-5.4"]
Explore[" Explore
(Codebase Grep)
Grok Code"]
Librarian[" Librarian
(Docs/OSS)
Gemini 3 Flash"]
Frontend[" Frontend
(UI/UX)
Gemini 3.1 Pro"]
end
User -->|"Describe work"| Prometheus
Prometheus -->|"Consult"| Metis
Prometheus -->|"Interview"| User
Prometheus -->|"Generate plan"| Plan[".sisyphus/plans/*.md"]
Plan -->|"High accuracy?"| Momus
Momus -->|"OKAY / REJECT"| Prometheus
User -->|"/start-work"| Orchestrator
Plan -->|"Read"| Orchestrator
Orchestrator -->|"task(category)"| Junior
Orchestrator -->|"task(agent)"| Oracle
Orchestrator -->|"task(agent)"| Explore
Orchestrator -->|"task(agent)"| Librarian
Orchestrator -->|"task(agent)"| Frontend
Junior -->|"Results + Learnings"| Orchestrator
Oracle -->|"Advice"| Orchestrator
Explore -->|"Code patterns"| Orchestrator
Librarian -->|"Documentation"| Orchestrator
Frontend -->|"UI code"| Orchestrator
```
---
## Planning: Prometheus + Metis + Momus
### Prometheus: Your Strategic Consultant
Prometheus is not just a planner, it's an intelligent interviewer that helps you think through what you actually need. It is **READ-ONLY** - can only create or modify markdown files within `.sisyphus/` directory.
**The Interview Process:**
```mermaid
stateDiagram-v2
[*] --> Interview: User describes work
Interview --> Research: Launch explore/librarian agents
Research --> Interview: Gather codebase context
Interview --> ClearanceCheck: After each response
ClearanceCheck --> Interview: Requirements unclear
ClearanceCheck --> PlanGeneration: All requirements clear
state ClearanceCheck {
[*] --> Check
Check: Core objective defined?
Check: Scope boundaries established?
Check: No critical ambiguities?
Check: Technical approach decided?
Check: Test strategy confirmed?
}
PlanGeneration --> MetisConsult: Mandatory gap analysis
MetisConsult --> WritePlan: Incorporate findings
WritePlan --> HighAccuracyChoice: Present to user
HighAccuracyChoice --> MomusLoop: User wants high accuracy
HighAccuracyChoice --> Done: User accepts plan
MomusLoop --> WritePlan: REJECTED - fix issues
MomusLoop --> Done: OKAY - plan approved
Done --> [*]: Guide to /start-work
```
**Intent-Specific Strategies:**
Prometheus adapts its interview style based on what you're doing:
| Intent | Prometheus Focus | Example Questions |
| ---------------------- | ------------------------------ | ---------------------------------------------------------- |
| **Refactoring** | Safety - behavior preservation | "What tests verify current behavior?" "Rollback strategy?" |
| **Build from Scratch** | Discovery - patterns first | "Found pattern X in codebase. Follow it or deviate?" |
| **Mid-sized Task** | Guardrails - exact boundaries | "What must NOT be included? Hard constraints?" |
| **Architecture** | Strategic - long-term impact | "Expected lifespan? Scale requirements?" |
### Metis: The Gap Analyzer
Before Prometheus writes the plan, Metis catches what Prometheus missed:
- Hidden intentions in user's request
- Ambiguities that could derail implementation
- AI-slop patterns (over-engineering, scope creep)
- Missing acceptance criteria
- Edge cases not addressed
**Why Metis Exists:**
The plan author (Prometheus) has "ADHD working memory" - it makes connections that never make it onto the page. Metis forces externalization of implicit knowledge.
### Momus: The Ruthless Reviewer
For high-accuracy mode, Momus validates plans against four core criteria:
1. **Clarity**: Does each task specify WHERE to find implementation details?
2. **Verification**: Are acceptance criteria concrete and measurable?
3. **Context**: Is there sufficient context to proceed without >10% guesswork?
4. **Big Picture**: Is the purpose, background, and workflow clear?
**The Momus Loop:**
Momus only says "OKAY" when:
- 100% of file references verified
- ≥80% of tasks have clear reference sources
- ≥90% of tasks have concrete acceptance criteria
- Zero tasks require assumptions about business logic
- Zero critical red flags
If REJECTED, Prometheus fixes issues and resubmits. No maximum retry limit.
---
## Execution: Atlas
### The Conductor Mindset
Atlas is like an orchestra conductor: it doesn't play instruments, it ensures perfect harmony.
```mermaid
flowchart LR
subgraph Orchestrator["Atlas"]
Read["1. Read Plan"]
Analyze["2. Analyze Tasks"]
Wisdom["3. Accumulate Wisdom"]
Delegate["4. Delegate Tasks"]
Verify["5. Verify Results"]
Report["6. Final Report"]
end
Read --> Analyze
Analyze --> Wisdom
Wisdom --> Delegate
Delegate --> Verify
Verify -->|"More tasks"| Delegate
Verify -->|"All done"| Report
Delegate -->|"background=false"| Workers["Workers"]
Workers -->|"Results + Learnings"| Verify
```
**What Atlas CAN do:**
- Read files to understand context
- Run commands to verify results
- Use lsp_diagnostics to check for errors
- Search patterns with grep/glob/ast-grep
**What Atlas MUST delegate:**
- Writing or editing code files
- Fixing bugs
- Creating tests
- Git commits
### Wisdom Accumulation
The power of orchestration is cumulative learning. After each task:
1. Extract learnings from subagent's response
2. Categorize into: Conventions, Successes, Failures, Gotchas, Commands
3. Pass forward to ALL subsequent subagents
This prevents repeating mistakes and ensures consistent patterns.
**Notepad System:**
```
.sisyphus/notepads/{plan-name}/
├── learnings.md # Patterns, conventions, successful approaches
├── decisions.md # Architectural choices and rationales
├── issues.md # Problems, blockers, gotchas encountered
├── verification.md # Test results, validation outcomes
└── problems.md # Unresolved issues, technical debt
```
---
## Workers: Sisyphus-Junior and Specialists
### Sisyphus-Junior: The Task Executor
Junior is the workhorse that actually writes code. Key characteristics:
- **Focused**: Cannot delegate (blocked from task tool)
- **Disciplined**: Obsessive todo tracking
- **Verified**: Must pass lsp_diagnostics before completion
- **Constrained**: Cannot modify plan files (READ-ONLY)
**Why Sonnet is Sufficient:**
Junior doesn't need to be the smartest - it needs to be reliable. With:
1. Detailed prompts from Atlas (50-200 lines)
2. Accumulated wisdom passed forward
3. Clear MUST DO / MUST NOT DO constraints
4. Verification requirements
Even a mid-tier model executes precisely. The intelligence is in the **system**, not individual agents.
### System Reminder Mechanism
The hook system ensures Junior never stops halfway:
```
[SYSTEM REMINDER - TODO CONTINUATION]
You have incomplete todos! Complete ALL before responding:
- [ ] Implement user service ← IN PROGRESS
- [ ] Add validation
- [ ] Write tests
DO NOT respond until all todos are marked completed.
```
This "boulder pushing" mechanism is why the system is named after Sisyphus.
---
## Category + Skill System
### Why Categories are Revolutionary
**The Problem with Model Names:**
```typescript
// OLD: Model name creates distributional bias
task({ agent: "gpt-5.4", prompt: "..." }); // Model knows its limitations
task({ agent: "claude-opus-4.6", prompt: "..." }); // Different self-perception
```
**The Solution: Semantic Categories:**
```typescript
// NEW: Category describes INTENT, not implementation
task({ category: "ultrabrain", prompt: "..." }); // "Think strategically"
task({ category: "visual-engineering", prompt: "..." }); // "Design beautifully"
task({ category: "quick", prompt: "..." }); // "Just get it done fast"
```
### Built-in Categories
| Category | Model | When to Use |
| -------------------- | ---------------------- | ----------------------------------------------------------- |
| `visual-engineering` | Gemini 3.1 Pro | Frontend, UI/UX, design, styling, animation |
| `ultrabrain` | GPT-5.4 (xhigh) | Deep logical reasoning, complex architecture decisions |
| `artistry` | Gemini 3.1 Pro (high) | Highly creative or artistic tasks, novel ideas |
| `quick` | GPT-5.4 Mini | Trivial tasks - single file changes, typo fixes |
| `deep` | GPT-5.3 Codex (medium) | Goal-oriented autonomous problem-solving, thorough research |
| `unspecified-low` | Claude Sonnet 4.6 | Tasks that don't fit other categories, low effort |
| `unspecified-high` | Claude Opus 4.6 (max) | Tasks that don't fit other categories, high effort |
| `writing` | Gemini 3 Flash | Documentation, prose, technical writing |
### Skills: Domain-Specific Instructions
Skills prepend specialized instructions to subagent prompts:
```typescript
// Category + Skill combination
task(
(category = "visual-engineering"),
(load_skills = ["frontend-ui-ux"]), // Adds UI/UX expertise
(prompt = "..."),
);
task(
(category = "general"),
(load_skills = ["playwright"]), // Adds browser automation expertise
(prompt = "..."),
);
```
---
## Usage Patterns
### How to Invoke Prometheus
**Method 1: Switch to Prometheus Agent (Tab → Select Prometheus)**
```
1. Press Tab at the prompt
2. Select "Prometheus" from the agent list
3. Describe your work: "I want to refactor the auth system"
4. Answer interview questions
5. Prometheus creates plan in .sisyphus/plans/{name}.md
```
**Method 2: Use @plan Command (in Sisyphus)**
```
1. Stay in Sisyphus (default agent)
2. Type: @plan "I want to refactor the auth system"
3. The @plan command automatically switches to Prometheus
4. Answer interview questions
5. Prometheus creates plan in .sisyphus/plans/{name}.md
```
**Which Should You Use?**
| Scenario | Recommended Method | Why |
| --------------------------------- | -------------------------- | ---------------------------------------------------- |
| **New session, starting fresh** | Switch to Prometheus agent | Clean mental model - you're entering "planning mode" |
| **Already in Sisyphus, mid-work** | Use @plan | Convenient, no agent switch needed |
| **Want explicit control** | Switch to Prometheus agent | Clear separation of planning vs execution contexts |
| **Quick planning interrupt** | Use @plan | Fastest path from current context |
Both methods trigger the same Prometheus planning flow. The @plan command is simply a convenience shortcut.
### /start-work Behavior and Session Continuity
**What Happens When You Run /start-work:**
```
User: /start-work
↓
[start-work hook activates]
↓
Check: Does .sisyphus/boulder.json exist?
↓
├─ YES (existing work) → RESUME MODE
│ - Read the existing boulder state
│ - Calculate progress (checked vs unchecked boxes)
│ - Inject continuation prompt with remaining tasks
│ - Atlas continues where you left off
│
└─ NO (fresh start) → INIT MODE
- Find the most recent plan in .sisyphus/plans/
- Create new boulder.json tracking this plan
- Switch session agent to Atlas
- Begin execution from task 1
```
**Session Continuity Explained:**
The `boulder.json` file tracks:
- **active_plan**: Path to the current plan file
- **session_ids**: All sessions that have worked on this plan
- **started_at**: When work began
- **plan_name**: Human-readable plan identifier
**Example Timeline:**
```
Monday 9:00 AM
└─ @plan "Build user authentication"
└─ Prometheus interviews and creates plan
└─ User: /start-work
└─ Atlas begins execution, creates boulder.json
└─ Task 1 complete, Task 2 in progress...
└─ [Session ends - computer crash, user logout, etc.]
Monday 2:00 PM (NEW SESSION)
└─ User opens new session (agent = Sisyphus by default)
└─ User: /start-work
└─ [start-work hook reads boulder.json]
└─ "Resuming 'Build user authentication' - 3 of 8 tasks complete"
└─ Atlas continues from Task 3 (no context lost)
```
Atlas is automatically activated when you run `/start-work`. You don't need to manually switch to Atlas.
### Hephaestus vs Sisyphus + ultrawork
**Quick Comparison:**
| Aspect | Hephaestus | Sisyphus + `ulw` / `ultrawork` |
| --------------- | ------------------------------------------ | ---------------------------------------------------- |
| **Model** | GPT-5.4 (medium reasoning) | Claude Opus 4.6 / GPT-5.4 / GLM 5 depending on setup |
| **Approach** | Autonomous deep worker | Keyword-activated ultrawork mode |
| **Best For** | Complex architectural work, deep reasoning | General complex tasks, "just do it" scenarios |
| **Planning** | Self-plans during execution | Uses Prometheus plans if available |
| **Delegation** | Heavy use of explore/librarian agents | Uses category-based delegation |
| **Temperature** | 0.1 | 0.1 |
**When to Use Hephaestus:**
Switch to Hephaestus (Tab → Select Hephaestus) when:
1. **Deep architectural reasoning needed**
- "Design a new plugin system"
- "Refactor this monolith into microservices"
2. **Complex debugging requiring inference chains**
- "Why does this race condition only happen on Tuesdays?"
- "Trace this memory leak through 15 files"
3. **Cross-domain knowledge synthesis**
- "Integrate our Rust core with the TypeScript frontend"
- "Migrate from MongoDB to PostgreSQL with zero downtime"
4. **You specifically want GPT-5.4 reasoning**
- Some problems benefit from GPT-5.4's training characteristics
**When to Use Sisyphus + `ulw`:**
Use the `ulw` keyword in Sisyphus when:
1. **You want the agent to figure it out**
- "ulw fix the failing tests"
- "ulw add input validation to the API"
2. **Complex but well-scoped tasks**
- "ulw implement JWT authentication following our patterns"
- "ulw create a new CLI command for deployments"
3. **You're feeling lazy** (officially supported use case)
- Don't want to write detailed requirements
- Trust the agent to explore and decide
4. **You want to leverage existing plans**
- If a Prometheus plan exists, `ulw` mode can use it
- Falls back to autonomous exploration if no plan
**Recommendation:**
- **For most users**: Use `ulw` keyword in Sisyphus. It's the default path and works excellently for 90% of complex tasks.
- **For power users**: Switch to Hephaestus when you specifically need GPT-5.4's reasoning style or want the "AmpCode deep mode" experience of fully autonomous exploration and execution.
---
## Configuration
You can control related features in `oh-my-openagent.json`:
```jsonc
{
"sisyphus_agent": {
"disabled": false, // Enable Atlas orchestration (default: false)
"planner_enabled": true, // Enable Prometheus (default: true)
"replace_plan": true, // Replace default plan agent with Prometheus (default: true)
},
// Hook settings (add to disable)
"disabled_hooks": [
// "start-work", // Disable execution trigger
// "prometheus-md-only" // Remove Prometheus write restrictions (not recommended)
],
}
```
---
## Troubleshooting
### "I switched to Prometheus but nothing happened"
Prometheus enters interview mode by default. It will ask you questions about your requirements. Answer them, then say "make it a plan" when ready.
### "/start-work says 'no active plan found'"
Either:
- No plans exist in `.sisyphus/plans/` → Create one with Prometheus first
- Plans exist but boulder.json points elsewhere → Delete `.sisyphus/boulder.json` and retry
### "I'm in Atlas but I want to switch back to normal mode"
Type `exit` or start a new session. Atlas is primarily entered via `/start-work` - you don't typically "switch to Atlas" manually.
### "What's the difference between @plan and just switching to Prometheus?"
**Nothing functional.** Both invoke Prometheus. @plan is a convenience command while switching agents is explicit control. Use whichever feels natural.
### "Should I use Hephaestus or type ulw?"
**For most tasks**: Type `ulw` in Sisyphus.
**Use Hephaestus when**: You specifically need GPT-5.4's reasoning style for deep architectural work or complex debugging.
---
## Further Reading
- [Overview](./overview.md)
- [Features Reference](../reference/features.md)
- [Configuration Reference](../reference/configuration.md)
- [Manifesto](../manifesto.md)