refactor: consolidate agent architecture and archive legacy templates

- Remove general-purpose agent in favor of universal-executor
- Enhance workflow session completion with better state management
- Improve context-gather with advanced filtering and validation
- Archive legacy prompt templates for reference

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>

.claude/commands/workflow/tools/context-gather.md

@@ -76,17 +76,19 @@ Execute complete context-search-agent workflow for implementation planning:
 3. **Analysis**: Extract keywords, determine scope, classify complexity
 
 ### Phase 2: Multi-Source Context Discovery
-Execute all 3 discovery tracks:
-- **Track 1**: Reference documentation (CLAUDE.md, architecture docs)
-- **Track 2**: Web examples (use Exa MCP for unfamiliar tech/APIs)
-- **Track 3**: Codebase analysis (5-layer discovery: files, content, patterns, deps, config/tests)
+Execute all 4 discovery tracks:
+- **Track 1**: Historical archive analysis (query manifest.json for lessons learned)
+- **Track 2**: Reference documentation (CLAUDE.md, architecture docs)
+- **Track 3**: Web examples (use Exa MCP for unfamiliar tech/APIs)
+- **Track 4**: Codebase analysis (5-layer discovery: files, content, patterns, deps, config/tests)
 
 ### Phase 3: Synthesis, Assessment & Packaging
 1. Apply relevance scoring and build dependency graph
-2. Synthesize 3-source data (docs > code > web)
+2. Synthesize 4-source data (archive > docs > code > web)
 3. Integrate brainstorm artifacts (if .brainstorming/ exists, read content)
 4. Perform conflict detection with risk assessment
-5. Generate and validate context-package.json
+5. **Inject historical conflicts** from archive analysis into conflict_detection
+6. Generate and validate context-package.json
 
 ## Output Requirements
 Complete context-package.json with:
@@ -95,7 +97,7 @@ Complete context-package.json with:
 - **assets**: {documentation[], source_code[], config[], tests[]} with relevance scores
 - **dependencies**: {internal[], external[]} with dependency graph
 - **brainstorm_artifacts**: {guidance_specification, role_analyses[], synthesis_output} with content
-- **conflict_detection**: {risk_level, risk_factors, affected_modules[], mitigation_strategy}
+- **conflict_detection**: {risk_level, risk_factors, affected_modules[], mitigation_strategy, historical_conflicts[]}
 
 ## Quality Validation
 Before completion verify:
@@ -141,7 +143,112 @@ Refer to `context-search-agent.md` Phase 3.7 for complete `context-package.json`
 - **assets**: Categorized files with relevance scores (documentation, source_code, config, tests)
 - **dependencies**: Internal and external dependency graphs
 - **brainstorm_artifacts**: Brainstorm documents with full content (if exists)
-- **conflict_detection**: Risk assessment with mitigation strategies
+- **conflict_detection**: Risk assessment with mitigation strategies and historical conflicts
+
+## Historical Archive Analysis
+
+### Track 1: Query Archive Manifest
+
+The context-search-agent MUST perform historical archive analysis as Track 1 in Phase 2:
+
+**Step 1: Check for Archive Manifest**
+```bash
+# Check if archive manifest exists
+if [[ -f .workflow/.archives/manifest.json ]]; then
+  # Manifest available for querying
+fi
+```
+
+**Step 2: Extract Task Keywords**
+```javascript
+// From current task description, extract key entities and operations
+const keywords = extractKeywords(task_description);
+// Examples: ["User", "model", "authentication", "JWT", "reporting"]
+```
+
+**Step 3: Search Archive for Relevant Sessions**
+```javascript
+// Query manifest for sessions with matching tags or descriptions
+const relevantArchives = archives.filter(archive => {
+  return archive.tags.some(tag => keywords.includes(tag)) ||
+         keywords.some(kw => archive.description.toLowerCase().includes(kw.toLowerCase()));
+});
+```
+
+**Step 4: Extract Watch Patterns**
+```javascript
+// For each relevant archive, check watch_patterns for applicability
+const historicalConflicts = [];
+
+relevantArchives.forEach(archive => {
+  archive.lessons.watch_patterns?.forEach(pattern => {
+    // Check if pattern trigger matches current task
+    if (isPatternRelevant(pattern.pattern, task_description)) {
+      historicalConflicts.push({
+        source_session: archive.session_id,
+        pattern: pattern.pattern,
+        action: pattern.action,
+        files_to_check: pattern.related_files,
+        archived_at: archive.archived_at
+      });
+    }
+  });
+});
+```
+
+**Step 5: Inject into Context Package**
+```json
+{
+  "conflict_detection": {
+    "risk_level": "medium",
+    "risk_factors": ["..."],
+    "affected_modules": ["..."],
+    "mitigation_strategy": "...",
+    "historical_conflicts": [
+      {
+        "source_session": "WFS-auth-feature",
+        "pattern": "When modifying User model",
+        "action": "Check reporting-service and auditing-service dependencies",
+        "files_to_check": ["src/models/User.ts", "src/services/reporting.ts"],
+        "archived_at": "2025-09-16T09:00:00Z"
+      }
+    ]
+  }
+}
+```
+
+### Risk Level Escalation
+
+If `historical_conflicts` array is not empty, minimum risk level should be "medium":
+
+```javascript
+if (historicalConflicts.length > 0 && currentRisk === "low") {
+  conflict_detection.risk_level = "medium";
+  conflict_detection.risk_factors.push(
+    `${historicalConflicts.length} historical conflict pattern(s) detected from past sessions`
+  );
+}
+```
+
+### Archive Query Algorithm
+
+```markdown
+1. IF .workflow/.archives/manifest.json does NOT exist → Skip Track 1, continue to Track 2
+2. IF manifest exists:
+   a. Load manifest.json
+   b. Extract keywords from task_description (nouns, verbs, technical terms)
+   c. Filter archives where:
+      - ANY tag matches keywords (case-insensitive) OR
+      - description contains keywords (case-insensitive substring match)
+   d. For each relevant archive:
+      - Read lessons.watch_patterns array
+      - Check if pattern.pattern keywords overlap with task_description
+      - If relevant: Add to historical_conflicts array
+   e. IF historical_conflicts.length > 0:
+      - Set risk_level = max(current_risk, "medium")
+      - Add to risk_factors
+3. Continue to Track 2 (reference documentation)
+```
 
 ## Usage Examples