second-opinions
This skill is for Claude only. Codex and Gemini CLI should not invoke it.
Second Opinions
Delegate tasks to OpenAI Codex (MCP) and/or Google Gemini (CLI) for independent perspectives from different model families. Works for code review, plan evaluation, doc editing, codebase analysis, or any arbitrary task.
Modes: both (default), codex, gemini
When To Use
- Code review before committing, opening a PR, or merging
- Plan or architecture review from multiple perspectives
- Documentation review or content editing
- Codebase analysis (patterns, race conditions, dead code)
- Any task benefiting from parallel exploration by external models
Scope
More from vinta/hal-9000
commit
Use when making any git commit. Always pass a brief description of what changed as the argument.
73update-allowed-tools
Use when creating or editing a skill that uses Bash commands, external tools, or skill invocations and the allowed-tools frontmatter may be incomplete
49sync-skills
(hal-9000) Use when a skill in skills/ has its name or description changed, or is added or removed — syncs README.md, settings.json, and hal_dotfiles.json
46magi
Use when brainstorming ideas, features, or directions for a project where independent perspectives from different model families (Claude/Codex/Gemini) would surface blind spots and spark creative options the user hasn't considered — especially "what cool things can I add", "what should I build next", "give me ideas for X
44explore-codebase
Use when navigating unfamiliar code, tracing call flows or symbol definitions, finding files by name or pattern, or locating all references before refactoring
35magi-ex
Use when brainstorming ideas, features, or directions for a project where independent perspectives from different model families (Claude/Codex/Gemini) would surface blind spots and spark creative options the user hasn't considered — especially "what cool things can I add", "what should I build next", "give me ideas for X
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