feat: initial seed of domain-specific contrib skills

org-skill-gtd.org

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+:PROPERTIES:
+:ID:       bbcacb7b-c0ff-4f7e-8bf4-c6ba152a19ce
+:CREATED:  [2026-03-30 Mon 21:16]
+:EDITED:   [2026-04-07 Tue 13:42]
+:END:
+#+TITLE: SKILL: Getting Things Done (GTD) (Universal Literate Note)
+#+STARTUP: content
+#+FILETAGS: :gtd:execution:workflow:psf:
+
+* Overview
+This skill defines the *GTD Execution Hub*, the single source of truth for all commitments. It governs how the agent perceives priorities and tracks progress through the PSF Consensus Loop using the `org-gtd` v4.0 DAG architecture.
+
+* Phase A: Demand (PRD)
+:PROPERTIES:
+:STATUS: FROZEN
+:END:
+
+** 1. Purpose
+Define the interfaces for task perception, project tracking, and commitment management.
+
+** 2. User Needs
+- *Allen-Sovereign Methodology:* Frictionless capture and rigorous clarification.
+- *DAG Structure:* Support for `org-gtd` v4.0 dependency graphs (:TRIGGER:, :BLOCKER:).
+- *Shadow Orchestration:* Tracking of `:PSF-STATE:` properties for engineering projects.
+- *Institutional Memory Integration:* Extraction of learnings before project completion.
+
+** 3. Success Criteria
+*** TODO Commitment Scanning
+*** TODO PSF-State Transition Verification
+*** TODO Stalled Project Identification
+
+
+* Phase B: Blueprint (PROTOCOL)
+:PROPERTIES:
+:STATUS: SIGNED
+:END:
+
+
+* Phase B: Blueprint (PROTOCOL)
+:PROPERTIES:
+:STATUS: DRAFT
+:END:
+
+** 1. Architectural Intent
+The GTD Execution Hub will be implemented as a collection of functions operating on the `org-gtd` v4.0 DAG. It will provide a consistent interface for task capture, clarification, and execution status monitoring.  Key elements include:
+
+- *Capture and Clarify:* Functions to create, process, and integrate new tasks into the DAG.
+- *Dependency Management:*  Functions to navigate and update dependencies based on `:TRIGGER:` and `:BLOCKER:` properties.
+- *PSF-State Tracking:*  Functions to monitor and report on `:PSF-STATE:` transitions.
+- *Completion Review:* Functions to summarize completed projects and extract lessons learned.
+
+The system should be modular and extensible, allowing for easy integration with other PSF components and external data sources.
+
+** 2. Semantic Interfaces (Lisp Signatures)
+
+*** Function: `gtd/capture-task`
+Capture a new task and integrate it into the appropriate context.
+
+    :signature `((description string) (context keyword) &optional (project org-id)) :returns org-id`
+    :description "Capture a new task described by DESCRIPTION and add it to CONTEXT.  If PROJECT is specified, link the new task as a subtask of PROJECT."
+
+*** Function: `gtd/clarify-task`
+Process a newly captured task, adding details and dependencies.
+
+    :signature `((task-id org-id) (details alist)) :returns org-id`
+    :description "Clarify a task, adding details and dependencies specified in the DETAILS alist. Example: '((:priority \