feat: enhance AI communication with dynamic system prompts, robust retry, and TUI formatters

.agent/implementation_plan.md

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+# TUI 5 Feature Enhancements - Implementation Plan
+
+## Overview
+Implementing 5 features inspired by Mini-Agent concepts, written as **100% original code** for TUI 5's React Ink architecture.
+
+---
+
+## Phase 1: Persistent Session Memory 🥇
+
+### Files to Create
+- `lib/session-memory.mjs` - SessionMemory class
+
+### Implementation
+```javascript
+// lib/session-memory.mjs
+class SessionMemory {
+    constructor() {
+        this.memoryFile = '.openqode-memory.json';
+        this.facts = [];
+    }
+    
+    async load() { /* Load from JSON file */ }
+    async save() { /* Save to JSON file */ }
+    async remember(fact) { /* Add fact with timestamp */ }
+    async forget(index) { /* Remove fact by index */ }
+    getContext() { /* Return facts as system prompt addition */ }
+}
+```
+
+### Commands
+- `/remember <fact>` - Save important context
+- `/forget <index>` - Remove a remembered fact
+- `/memory` - Show all remembered facts
+
+---
+
+## Phase 2: Intelligent Context Summarization 🥈
+
+### Files to Create
+- `lib/context-manager.mjs` - ContextManager class
+
+### Implementation
+```javascript
+class ContextManager {
+    constructor(tokenLimit = 100000) {
+        this.tokenLimit = tokenLimit;
+    }
+    
+    countTokens(text) { /* Estimate tokens */ }
+    shouldSummarize(messages) { /* Check if > 50% limit */ }
+    async summarize(messages) { /* Call AI to summarize old messages */ }
+}
+```
+
+### UI Indicator
+Show `[Context: 45%]` in stats panel
+
+---
+
+## Phase 3: Skills Library 🥉
+
+### Files to Create
+- `skills/index.mjs` - Skills registry
+- `skills/definitions/` - Individual skill files
+
+### Built-in Skills
+| Skill | Description |
+|-------|-------------|
+| `pdf` | Generate PDF documentation |
+| `test` | Create unit tests |
+| `review` | Code review analysis |
+| `docs` | Generate documentation |
+| `refactor` | Suggest refactoring |
+
+### Commands
+- `/skills` - List available skills
+- `/skill <name>` - Execute a skill
+
+---
+
+## Phase 4: Request Logging
+
+### Implementation
+- Add `--debug` CLI flag
+- Create `.openqode-debug.log`
+- Log API calls with timestamps
+- `/debug` toggle command
+
+---
+
+## Phase 5: MCP Support (Future)
+
+Research and design phase - defer to later sprint.
+
+---
+
+## Verification
+- Test each feature in isolation
+- Verify no regressions in existing functionality
+- Push to GitHub after each phase