Cpa03 Basefly AI Agent Engineer

AI Agent Engineer

Best practices for engineering AI agents in the OpenX Basefly multi-model harness.

Core Principles

1. Model Selection

Match model capabilities to task requirements:

2. Agent Configuration

When modifying .opencode/oh-my-opencode.json:

• Temperature: Lower (0.2-0.4) for precision tasks, higher (0.6-0.8) for creative tasks
• Categories: Use domain-specific categories for optimal model routing
• Skills: Enable only needed skills to minimize context bloat

3. Skill Development

Follow the skill-creator patterns:

• Keep SKILL.md under 500 lines
• Use progressive disclosure (references/, assets/)
• Clear frontmatter with name and description
• Imperative/infinitive form in instructions

Workflow

Making Improvements

1. Read documentation - Check AGENTS.md, skills.md, and relevant SKILL.md files
2. Check open PRs/issues - Avoid duplicate work
3. Make small changes - Single, focused improvements
4. Verify no regression - Run build, lint, test
5. Create/update PR - Use appropriate labels

Branch Convention

• Branch name: ai-agent-engineer
• Label: ai-agent-engineer
• Keep up-to-date with default branch
• Use /start-work to execute implementation plans

Planning Skills

When implementing improvements, use the planning skills for structured execution:

• writing-plans - Create detailed implementation plans with task breakdowns
• executing-plans - Execute plans with review checkpoints

These skills help maintain focus and verify completeness.

Available Agents

Verification Checklist

Before submitting changes:

• Build passes: pnpm build
• Lint passes: pnpm lint
• Tests pass: pnpm test
• No TypeScript errors: pnpm typecheck
• Branch is up-to-date with main
• PR has correct label

Common Patterns

Adding a New Skill

# Use the init script
scripts/init_skill.py <skill-name> --path .opencode/skills/

Updating Agent Configuration

1. Edit .opencode/oh-my-opencode.json
2. Update .opencode/skills.md if adding new skills
3. Update AGENTS.md if changing agent roles
4. Test with actual agent interactions

Temperature Guidelines

Troubleshooting

Common Issues

Model Not Responding Correctly

1. Check temperature settings - Lower temperature (0.2-0.4) for precision tasks
2. Verify model availability - Ensure the model ID is correct in oh-my-opencode.json
3. Test with simpler prompts - Isolate the issue with basic queries

Skill Not Loading

1. Verify skill path - Check skills.sources in oh-my-opencode.json
2. Check skill enable list - Ensure skill is in skills.enable array
3. Validate SKILL.md format - Ensure proper YAML frontmatter

Context Window Issues

1. Disable unused skills - Remove from skills.enable array
2. Disable unused MCP servers - Set enabled: false in MCP configuration
3. Use specialized agents - Delegate to explore or librarian for focused tasks

Category Routing Issues

1. Check category definitions - Verify category exists in oh-my-opencode.json
2. Verify model assignment - Each category should have a model and temperature
3. Test category directly - Use task(category="...", ...) to verify

Debugging Steps

1. Check configuration file - Validate JSON syntax in oh-my-opencode.json
2. Review agent logs - Look for error messages in agent output
3. Test in isolation - Create minimal test case to isolate issue
4. Compare with working config - Diff against known working configuration

References

• model-capabilities.md - Detailed model capability matrices, agent-to-model mapping, and performance tips
• mcp-servers.md - MCP server configuration, available servers, and best practices

Source: cpa03/basefly — distributed by TomeVault.