Route RAW model calls (no agent harness) to subscription tokens via the local CLIProxyAPI server, which re-exposes Codex/Claude/Gemini/Grok/Antigravity CLI logins as OpenAI- and Anthropic-compatible HTTP endpoints. Use for bulk generation / classification / extraction where you need model output, not file-editing tools. For agentic implementation work, use the agent CLIs (use-codex etc.) instead — see the decision rule below.
Spawn Google Antigravity CLI (agy) subagents from bash to offload coding work from the parent Claude. Use when the user says "use agy", "use antigravity", "ask gemini/agy", "get an agy second opinion", or asks to delegate work to Antigravity. Like the other CLI skills, agy's output is a claim — the parent must verify file changes independently.
Spawn one or more OpenAI Codex CLI subagents from bash to offload context-heavy work from the parent Claude. Use when the user says "use codex", "build with codex", "ask codex", "get a codex second opinion", "compare codex vs claude", "have two agents try it", or otherwise asks to delegate or parallelize work to Codex. Also use whenever a user asks for a large coding task — research, multi-file refactors, large codebase analysis.
Spawn Cursor headless CLI (cursor-agent) subagents from bash to offload coding work from the parent Claude. Use when the user says "use cursor", "ask cursor", "cursor-agent", "get a cursor second opinion", or asks to delegate work to Cursor. Like grok/codex, cursor's output is a claim — the parent must verify file changes independently.
Spawn Factory Droid CLI subagents from bash to offload coding work from the parent Claude. Use when the user says "use droid", "ask droid", "droid exec", "use factory", "get a droid second opinion", or asks to delegate work to Droid. Like the other CLI skills, droid's output is a claim — the parent must verify file changes independently.
Spawn xAI Grok CLI subagents from bash to offload coding/implementation work from the parent Claude. Use when the user says "use grok", "build with grok", "ask grok", "grok -p", "get a grok second opinion", or asks to delegate work to Grok. Grok's work MUST be independently verified by the parent — it exits 0 and narrates success even when it wrote nothing.