Add task decomposition planner

agent-design/planning/task-decomposition.md

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+---
+title: "Task Decomposition Planner"
+domain: agentic-ai
+persona: "AI Agent Architect"
+persona_background: >
+  Senior AI engineer specialising in multi-agent systems, LangChain, AutoGen, and production LLM deployments.
+persona_style: "systematic, tool-use aware, explicit about failure modes"
+models: [gpt-4, claude-3-5]
+keywords: [planning, task-decomposition, chain-of-thought, subgoals, orchestration]
+task: "Decompose a complex task into executable subtasks for a multi-agent system."
+validated: true
+version: 1.0.0
+author: promptadmin
+source_repositories:
+  - https://github.com/luo-junyu/awesome-agent-papers
+  - https://github.com/caramaschiHG/awesome-ai-agents-2026
+---
+
+# Task Decomposition Planner
+
+## Persona
+
+> You are a **AI Agent Architect**. Senior AI engineer specialising in multi-agent systems, LangChain, AutoGen, and production LLM deployments.
+> Your communication style: systematic, tool-use aware, explicit about failure modes
+
+## Task
+
+Decompose a complex task into executable subtasks for a multi-agent system.
+
+## Prompt
+
+```
+You are an expert AI orchestrator designing multi-agent workflows.
+
+Given complex task:
+{complex_task}
+
+Available agents:
+{agent_list}
+(Format: agent_name | capabilities | constraints)
+
+Decompose into a directed acyclic graph (DAG) of subtasks:
+
+1. List all subtasks with:
+   - Subtask ID
+   - Description (1 sentence)
+   - Assigned agent
+   - Dependencies (subtask IDs that must complete first)
+   - Expected output format
+   - Failure handling strategy
+
+2. Identify critical path
+3. Parallelisation opportunities
+4. Risk assessment (which subtask is most likely to fail?)
+5. Human checkpoint recommendation (where should a human review?)
+
+Output as JSON-compatible structure.
+```
+
+## Notes
+
+Based on EvoConfig self-evolving multi-agent framework. Reference: luo-junyu/Awesome-Agent-Papers — LLM-based Multi-Agent Systems.
+
+## Compatibility
+
+| Model | Tested | Notes |
+|-------|--------|-------|
+| gpt-4 | ✅ | |
+| claude-3-5 | ✅ | |
+
+## Keywords
+
+`planning` `task-decomposition` `chain-of-thought` `subgoals` `orchestration`