Quick-reference for using external AI models with Task tool. CRITICAL - PROXY_MODE is NOT a Task parameter - it goes in the PROMPT...
Models are learned per context and reused automatically:
cat .claude/multimodel-team.json 2>/dev/null
Flow:
contextPreferences[context] has models → USE THEM (no asking)Override triggers: "use different models", "change models", "update preferences"
External AI models are invoked via Bash+claudish CLI. This is deterministic and 100% reliable.
claudish --model {MODEL_ID} --stdin --quiet < prompt.md > result.md
In /team orchestration:
Task(subagent_type: "dev:researcher")Bash(claudish --model {MODEL_ID} --stdin)Works with ANY agent — deterministic, no LLM compliance needed.
# Pattern
claudish --model {MODEL_ID} --stdin --quiet < prompt.md > result.md 2>stderr.log; echo $? > result.exit
# Examples
claudish --model x-ai/grok-code-fast-1 --stdin --quiet < task.md > grok.md 2>grok-err.log; echo $? > grok.exit
claudish --model google/gemini-3-pro-preview --stdin --quiet < task.md > gemini.md 2>gemini-err.log; echo $? > gemini.exit
claudish --model openai/gpt-5.2-codex --stdin --quiet < task.md > gpt5.md 2>gpt5-err.log; echo $? > gpt5.exit
CLI Reference:
claudish [options]
--model <id> AI model to use (e.g., x-ai/grok-code-fast-1)
--stdin Read prompt from stdin
--quiet Minimal output
Parallel Execution in /team:
All Bash calls are launched in a SINGLE message with run_in_background: true:
// Internal model via Task
Task({
subagent_type: "dev:researcher",
description: "Internal Claude vote",
run_in_background: true,
prompt: "{VOTE_PROMPT}\n\nWrite to: {SESSION_DIR}/internal-result.md"
})
// External models via Bash+claudish (all in same message)
Bash({
command: "claudish --model x-ai/grok-code-fast-1 --stdin --quiet < {SESSION_DIR}/vote-prompt.md > {SESSION_DIR}/grok-result.md 2>{SESSION_DIR}/grok-stderr.log; echo $? > {SESSION_DIR}/grok.exit",
run_in_background: true
})
Bash({
command: "claudish --model google/gemini-3-pro-preview --stdin --quiet < {SESSION_DIR}/vote-prompt.md > {SESSION_DIR}/gemini-result.md 2>{SESSION_DIR}/gemini-stderr.log; echo $? > {SESSION_DIR}/gemini.exit",
run_in_background: true
})
| Mistake | Why It Fails | Fix |
|---|---|---|
Missing --stdin flag |
claudish expects prompt as argument, truncated for large prompts | Use --stdin with < prompt-file.md |
| Not capturing exit code | No way to detect failures | Add ; echo $? > result.exit |
| Not capturing stderr | Error details lost | Add 2>stderr.log |
$(cat file.md) in Task prompt |
Shell expansion doesn't work in JSON string parameters | Read file content first, then include in prompt |
Note: Model IDs change frequently. Use
claudish --top-modelsfor current list.
# Get current available models
claudish --top-models # Best value paid models
claudish --free # Free models
# Example model IDs (verify with commands above)
x-ai/grok-code-fast-1 # Grok (fast coding)
minimax/minimax-m2.5 # MiniMax M2.5
google/gemini-3-pro-preview # Gemini Pro
openai/gpt-5.2-codex # GPT-5.2 Codex
z-ai/glm-4.7 # GLM 4.7
deepseek/deepseek-v3.2 # DeepSeek v3.2
Prefix routing: Use direct API prefixes for cost savings:
oai/(OpenAI),g/(Gemini),mmax/(MiniMax),kimi/(Kimi),glm/(GLM).
After collecting results from external models, always verify:
cat {model-slug}.exit → should be 0wc -c < {model-slug}-result.md → should be >50 bytescat {model-slug}-stderr.log → should be empty or just infoVerification checklist:
For each external model result:
☐ Exit code is 0
☐ Result file exists and has >50 bytes
☐ Response contains substantive analysis (not just acknowledgment)
☐ No error messages in stderr log