feat: add OpenProse plugin skills

extensions/open-prose/skills/prose/examples/31-captains-chair-with-memory.prose

@@ -0,0 +1,145 @@
+# Captain's Chair with Memory and Self-Improvement
+#
+# An advanced orchestration pattern that includes:
+# - Retrospective analysis after task completion
+# - Learning from mistakes to improve future runs
+# - Continuous critic supervision during execution
+#
+# From the blog post: "Future agents will flip the plan:execute paradigm
+# to 80:20 from today's 20:80"
+
+input task: "The task to accomplish"
+input past_learnings: "Previous session learnings (if any)"
+
+# ============================================================================
+# Agent Definitions
+# ============================================================================
+
+agent captain:
+  model: opus
+  prompt: """You are a senior engineering manager. You coordinate but never code directly.
+
+Your responsibilities:
+1. Strategic planning with 80% of effort on planning, 20% on execution oversight
+2. Dispatch specialized subagents for all implementation
+3. Validate outputs meet requirements
+4. Learn from each session to improve future runs
+
+Past learnings to incorporate:
+{past_learnings}"""
+
+agent planner:
+  model: opus
+  prompt: """You are a meticulous planner. Create implementation plans with:
+- Exact files and line numbers to modify
+- Code patterns to follow from existing codebase
+- Edge cases to handle
+- Tests to write"""
+
+agent researcher:
+  model: haiku
+  prompt: "Find specific information quickly. Cite sources."
+
+agent executor:
+  model: sonnet
+  prompt: "Implement precisely according to plan. Follow existing patterns."
+
+agent critic:
+  model: sonnet
+  prompt: """You are a continuous critic. Your job is to watch execution and flag:
+- Deviations from plan
+- Emerging issues
+- Opportunities for improvement
+Be proactive - don't wait for completion to raise concerns."""
+
+agent retrospective:
+  model: opus
+  prompt: """You analyze completed sessions to extract learnings:
+- What went well?
+- What could be improved?
+- What should be remembered for next time?
+Output actionable insights, not platitudes."""
+
+# ============================================================================
+# Phase 1: Deep Planning (80% of effort)
+# ============================================================================
+
+# Parallel research - gather everything needed upfront
+parallel:
+  codebase = session: researcher
+    prompt: "Map the relevant parts of the codebase for: {task}"
+  patterns = session: researcher
+    prompt: "Find coding patterns and conventions used in this repo"
+  docs = session: researcher
+    prompt: "Find documentation and prior decisions related to: {task}"
+  issues = session: researcher
+    prompt: "Find known issues, TODOs, and edge cases for: {task}"
+
+# Create detailed implementation plan
+let detailed_plan = session: planner
+  prompt: """Create a comprehensive implementation plan for: {task}
+
+Use the research to specify:
+1. Exact changes needed (file:line format)
+2. Code patterns to follow
+3. Edge cases from prior issues
+4. Test coverage requirements"""
+  context: { codebase, patterns, docs, issues }
+
+# Critic reviews plan BEFORE execution
+let plan_critique = session: critic
+  prompt: "Review this plan for gaps, risks, and unclear requirements"
+  context: detailed_plan
+
+# Captain decides if plan needs revision
+if **plan critique identified blocking issues**:
+  let revised_plan = session: planner
+    prompt: "Revise the plan to address critique"
+    context: { detailed_plan, plan_critique }
+else:
+  let revised_plan = detailed_plan
+
+# ============================================================================
+# Phase 2: Supervised Execution (20% of effort)
+# ============================================================================
+
+# Execute with concurrent critic supervision
+parallel:
+  implementation = session: executor
+    prompt: "Implement according to the plan"
+    context: revised_plan
+  live_critique = session: critic
+    prompt: "Monitor implementation for deviations and emerging issues"
+    context: revised_plan
+
+# Captain validates and integrates
+let validated = session: captain
+  prompt: """Validate the implementation:
+- Does it match the plan?
+- Were critic's live concerns addressed?
+- Is it ready for user review?"""
+  context: { implementation, live_critique, revised_plan }
+
+# ============================================================================
+# Phase 3: Retrospective and Learning
+# ============================================================================
+
+# Extract learnings for future sessions
+let session_learnings = session: retrospective
+  prompt: """Analyze this completed session:
+
+Plan: {revised_plan}
+Implementation: {implementation}
+Critique: {live_critique}
+Validation: {validated}
+
+Extract:
+1. What patterns worked well?
+2. What caused friction or rework?
+3. What should the captain remember next time?
+4. Any codebase insights to preserve?"""
+  context: { revised_plan, implementation, live_critique, validated }
+
+# Output both the result and the learnings
+output result = validated
+output learnings = session_learnings