# Call Claude

> Delegate a prompt to Claude via `claude -p`. Use when the user wants to offload a task to Claude from another agent (Codex, Cursor, another Claude session), get a second opinion, or run a parallel implementation. Default model is opus.

- Skill: `stablyai/call-claude` (Agent Skill, multi-file: 2 files)
- Install (CLI): `npx skillmds@latest add stablyai/call-claude`
- Raw SKILL.md: https://api.skillmd.com/api/skills/stablyai/call-claude/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: AI & ML
- License: MIT
- Author: stablyai (https://skillmd.com/u/stablyai)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/stablyai/call-claude

---


# call-claude

Delegate an arbitrary prompt to **Claude** and return the output.

## Arguments

**Required**: a prompt.

**Optional flags** (parsed from the user's message):

| Flag | Values | Default |
|------|--------|---------|
| `--model` | `opus`, `sonnet`, `haiku`, or a full model ID | `opus` |
| `--effort` | `low`, `medium`, `high`, `xhigh`, `max` | _(omitted)_ |

## Process

1. **Parse** the user's message — extract the prompt and any `--model` / `--effort` overrides.
2. **Invoke** the wrapper script that ships alongside this SKILL.md:
   ```bash
   "$(dirname "$0")/call-claude.sh" [--model <alias>] [--effort <level>] "<prompt>"
   ```
   For multi-line prompts, pipe via stdin:
   ```bash
   echo "<prompt>" | "$(dirname "$0")/call-claude.sh" --model opus
   ```
3. **Return** Claude's full output to the user. Don't summarize unless asked.

`claude -p` is non-interactive and prints the final answer to stdout, so the wrapper output can be captured directly.

## Prerequisite

[Claude Code](https://claude.com/claude-code) must be installed — verify with `claude --version`.

## Examples

```bash
# Default (opus)
./call-claude.sh "explain what this repo does"

# Override model
./call-claude.sh --model sonnet "summarize the README"

# Override model + effort
./call-claude.sh --model opus --effort high "design a caching layer"
```