chore: install openagent opencode

Signed-off-by: Dmytro Stanchiev <git@dmytros.dev>

.opencode/context/openagents-repo/lookup/subagent-framework-maps.md

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+<!-- Context: openagents-repo/lookup | Priority: high | Version: 1.0 | Updated: 2026-02-15 -->
+
+# Lookup: Subagent Framework Maps
+
+**Purpose**: Quick reference for adding subagents to eval framework  
+**Last Updated**: 2026-01-09
+
+---
+
+## Critical: THREE Maps Must Be Updated
+
+When adding a new subagent, update these THREE locations:
+
+### 1. Parent Map (run-sdk-tests.ts ~line 336)
+**Purpose**: Maps subagent → parent agent for delegation testing
+
+```typescript
+const subagentParentMap: Record<string, string> = {
+  'contextscout': 'openagent',     // Core subagents → openagent
+  'task-manager': 'openagent',
+  'documentation': 'openagent',
+  
+  'coder-agent': 'opencoder',      // Code subagents → opencoder
+  'tester': 'opencoder',
+  'reviewer': 'opencoder',
+};
+```
+
+### 2. Path Map (run-sdk-tests.ts ~line 414)
+**Purpose**: Maps subagent name → file path for test discovery
+
+```typescript
+const subagentPathMap: Record<string, string> = {
+  'contextscout': 'ContextScout',
+  'task-manager': 'TaskManager',
+  'coder-agent': 'CoderAgent',
+};
+```
+
+### 3. Agent Map (test-runner.ts ~line 238)
+**Purpose**: Maps subagent name → agent file for eval-runner
+
+```typescript
+const agentMap: Record<string, string> = {
+  'contextscout': 'ContextScout.md',
+  'task-manager': 'TaskManager.md',
+  'coder-agent': 'CoderAgent.md',
+};
+```
+
+---
+
+## Error Messages
+
+| Error | Missing From | Fix |
+|-------|--------------|-----|
+| "No test files found" | Path Map (#2) | Add to `subagentPathMap` |
+| "Unknown subagent" | Parent Map (#1) | Add to `subagentParentMap` |
+| "Agent file not found" | Agent Map (#3) | Add to `agentMap` |
+
+---
+
+## Testing Commands
+
+```bash
+# Standalone mode (forces mode: primary)
+bun --bun run eval:sdk -- --subagent=contextscout
+
+# Delegation mode (tests via parent)
+bun --bun run eval:sdk -- --subagent=contextscout --delegate
+```
+
+---
+
+## Related
+
+- `guides/testing-subagents.md` - Full testing guide
+- `guides/adding-agent.md` - Creating new agents