# External Tool Coordination

> Coordinate external AI tool integration (OpenAI Codex, Google Gemini) for cross-model adversarial review and delegated implementation.

- Skill: `a5c-ai/external-tool-coordination` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add a5c-ai/external-tool-coordination`
- Raw SKILL.md: https://api.skillmd.com/api/skills/a5c-ai/external-tool-coordination/raw
- Safety review: pending (external: skill-scanner PASS, skillspector PASS)
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- Author: a5c-ai (https://skillmd.com/u/a5c-ai)
- Updated: 2026-09-09
- Page: https://skillmd.com/skills/a5c-ai/external-tool-coordination

---


- For cross-model adversarial review (writer reviewed by different model)
- When delegating implementation to cheaper external models
- For escalation chains across tools

## Capabilities

- **Delegated Implementation** - Send work units to external AI tools for implementation
- **Cross-Model Review** - Implementation by Model A, adversarial review by Model B
- **Escalation Chains** - Tool A -> Tool B -> Claude -> human
- **Cost Optimization** - Route simpler tasks to cheaper models

## Configuration

Requires `.metaswarm/external-tools.yaml`:
```yaml
tools:
  - name: codex
    type: openai
    capabilities: [implement, review]
  - name: gemini
    type: google
    capabilities: [implement, review]
escalation:
  chain: [codex, gemini, claude, human]
```

## Agents Used

- `agents/swarm-coordinator/` - Multi-tool orchestration

## Tool Use

Invoke as part of: `methodologies/metaswarm/metaswarm-swarm-coordinator`