#+TITLE: SKILL: Long-Horizon Planning Agent (Universal Literate Note)
#+ID: skill-long-horizon
#+STARTUP: content
#+FILETAGS: :planning:meta-cognition:long-horizon:psf:

* Overview
The *Long-Horizon Planning Agent* manages complex, multi-step tasks that exceed the context window of standard LLMs. It uses an Org-mode *Dynamic Task Tree* to track progress, summarize completed sub-tasks, and prune irrelevant execution branches.

* Phase A: Demand (PRD)
:PROPERTIES:
:STATUS: DRAFT
:END:

** 1. Purpose
Enable the agent to maintain focus and coherence over tasks spanning 100+ steps (SWE-bench parity).

** 2. User Needs
- *Hierarchical Planning:* Break large goals into a nested tree of Org headlines.
- *Context Compression:* Automatically summarize the results of child sub-trees into their parent nodes.
- *Branch Pruning:* Meta-cognitive review to stop execution of failed or redundant paths.
- *Self-Correction:* Adjust the plan dynamically based on environmental feedback.

** 3. Success Criteria
*** TODO Dynamic Task Tree Generation
*** TODO Context Compression Verification
*** TODO Branch Pruning Logic Effectiveness