Slash Commands im SDK

import { query } from "@anthropic-ai/claude-agent-sdk";

for await (const message of query({
  prompt: "Hello Claude",
  options: { maxTurns: 1 }
})) {
  if (message.type === "system" && message.subtype === "init") {
    console.log("Available slash commands:", message.slash_commands);
    // Includes built-in commands plus bundled skills, for example:
    // ["clear", "compact", "context", "usage", "code-review", "verify", ...]
  }
}

import asyncio
from claude_agent_sdk import query, ClaudeAgentOptions, SystemMessage


async def main():
    async for message in query(prompt="Hello Claude", options=ClaudeAgentOptions(max_turns=1)):
        if isinstance(message, SystemMessage) and message.subtype == "init":
            print("Available slash commands:", message.data["slash_commands"])
            # Includes built-in commands plus bundled skills, for example:
            # ["clear", "compact", "context", "usage", "code-review", "verify", ...]


asyncio.run(main())

import { query } from "@anthropic-ai/claude-agent-sdk";

// Build up conversation history first
try {
  for await (const message of query({
    prompt: "What does the README in this directory cover?",
    options: { maxTurns: 2 }
  })) {
    if (message.type === "result" && message.subtype === "success") {
      console.log(message.result);
    }
  }
} catch (error) {
  // A single-shot query() throws after yielding an error result,
  // so the follow-up query below still runs.
  console.error(`Session ended with an error: ${error}`);
}

// Send a slash command as a follow-up to the same conversation
for await (const message of query({
  prompt: "/compact",
  options: { continue: true, maxTurns: 1 }
})) {
  if (message.type === "result") {
    console.log("Command executed, result subtype:", message.subtype);
    // Example output: Command executed, result subtype: success
  }
}

import asyncio
from claude_agent_sdk import query, ClaudeAgentOptions, ResultMessage


async def main():
    # Build up conversation history first
    try:
        async for message in query(
            prompt="What does the README in this directory cover?",
            options=ClaudeAgentOptions(max_turns=2),
        ):
            if isinstance(message, ResultMessage) and message.subtype == "success":
                print(message.result)
    except Exception as error:
        # A single-shot query() raises after yielding an error result,
        # so the follow-up query below still runs.
        print(f"Session ended with an error: {error}")

    # Send a slash command as a follow-up to the same conversation
    async for message in query(
        prompt="/compact",
        options=ClaudeAgentOptions(continue_conversation=True, max_turns=1),
    ):
        if isinstance(message, ResultMessage):
            print("Command executed, result subtype:", message.subtype)
            # Example output: Command executed, result subtype: success


asyncio.run(main())

import { query } from "@anthropic-ai/claude-agent-sdk";

// Compaction needs existing history, so have a conversation first
try {
  for await (const message of query({
    prompt: "Explain what this project does",
    options: { maxTurns: 2 }
  })) {
    if (message.type === "result" && message.subtype === "success") {
      console.log(message.result);
    }
  }
} catch (error) {
  // A single-shot query() throws after yielding an error result,
  // so the follow-up query below still runs.
  console.error(`Session ended with an error: ${error}`);
}

// Compact the same conversation
for await (const message of query({
  prompt: "/compact",
  options: { continue: true, maxTurns: 1 }
})) {
  if (message.type === "system" && message.subtype === "compact_boundary") {
    console.log("Compaction completed");
    console.log("Pre-compaction tokens:", message.compact_metadata.pre_tokens);
    console.log("Trigger:", message.compact_metadata.trigger);
    // Example output:
    // Compaction completed
    // Pre-compaction tokens: 1842
    // Trigger: manual
  }
}

import asyncio
from claude_agent_sdk import query, ClaudeAgentOptions, ResultMessage, SystemMessage


async def main():
    # Compaction needs existing history, so have a conversation first
    try:
        async for message in query(
            prompt="Explain what this project does",
            options=ClaudeAgentOptions(max_turns=2),
        ):
            if isinstance(message, ResultMessage) and message.subtype == "success":
                print(message.result)
    except Exception as error:
        # A single-shot query() raises after yielding an error result,
        # so the follow-up query below still runs.
        print(f"Session ended with an error: {error}")

    # Compact the same conversation
    async for message in query(
        prompt="/compact",
        options=ClaudeAgentOptions(continue_conversation=True, max_turns=1),
    ):
        if isinstance(message, SystemMessage) and message.subtype == "compact_boundary":
            print("Compaction completed")
            print("Pre-compaction tokens:", message.data["compact_metadata"]["pre_tokens"])
            print("Trigger:", message.data["compact_metadata"]["trigger"])
            # Example output:
            # Compaction completed
            # Pre-compaction tokens: 1842
            # Trigger: manual


asyncio.run(main())

import { query } from "@anthropic-ai/claude-agent-sdk";

// Use a custom command
try {
  for await (const message of query({
    prompt: "/refactor src/auth/login.ts",
    options: { maxTurns: 3 }
  })) {
    if (message.type === "assistant") {
      console.log("Refactoring suggestions:", message.message);
    }
  }
} catch (error) {
  // A single-shot query() throws after yielding an error result,
  // so the second query below still runs.
  console.error(`Session ended with an error: ${error}`);
}

// Custom commands appear in the slash_commands list
for await (const message of query({
  prompt: "Hello",
  options: { maxTurns: 1 }
})) {
  if (message.type === "system" && message.subtype === "init") {
    console.log("Available commands:", message.slash_commands);
    // Includes built-in commands plus bundled skills and your custom commands, for example:
    // ["clear", "compact", "context", "usage", "code-review", "verify", "refactor", "security-check", ...]
  }
}

import asyncio
from claude_agent_sdk import query, ClaudeAgentOptions, AssistantMessage, SystemMessage


async def main():
    # Use a custom command
    try:
        async for message in query(
            prompt="/refactor src/auth/login.py", options=ClaudeAgentOptions(max_turns=3)
        ):
            if isinstance(message, AssistantMessage):
                for block in message.content:
                    if hasattr(block, "text"):
                        print("Refactoring suggestions:", block.text)
    except Exception as error:
        # A single-shot query() raises after yielding an error result,
        # so the second query below still runs.
        print(f"Session ended with an error: {error}")

    # Custom commands appear in the slash_commands list
    async for message in query(prompt="Hello", options=ClaudeAgentOptions(max_turns=1)):
        if isinstance(message, SystemMessage) and message.subtype == "init":
            print("Available commands:", message.data["slash_commands"])
            # Includes built-in commands plus bundled skills and your custom commands, for example:
            # ["clear", "compact", "context", "usage", "code-review", "verify", "refactor", "security-check", ...]


asyncio.run(main())

import { query } from "@anthropic-ai/claude-agent-sdk";

// Pass arguments to custom command
for await (const message of query({
  prompt: "/fix-issue 123 high",
  options: { maxTurns: 5 }
})) {
  // Command will process with $0="123" and $1="high"
  if (message.type === "result" && message.subtype === "success") {
    console.log("Issue fixed:", message.result);
  }
}

import asyncio
from claude_agent_sdk import query, ClaudeAgentOptions, ResultMessage


async def main():
    # Pass arguments to custom command
    async for message in query(prompt="/fix-issue 123 high", options=ClaudeAgentOptions(max_turns=5)):
        # Command will process with $0="123" and $1="high"
        if isinstance(message, ResultMessage):
            print("Issue fixed:", message.result)


asyncio.run(main())

import { query } from "@anthropic-ai/claude-agent-sdk";

// Run code review
try {
  for await (const message of query({
    prompt: "/review-pr",
    options: { maxTurns: 3 }
  })) {
    // Process review feedback
  }
} catch (error) {
  // A single-shot query() throws after yielding an error result,
  // so the second query below still runs.
  console.error(`Session ended with an error: ${error}`);
}

// Run specific tests
for await (const message of query({
  prompt: "/test auth",
  options: { maxTurns: 5 }
})) {
  // Handle test results
}

import asyncio
from claude_agent_sdk import query, ClaudeAgentOptions


async def main():
    # Run code review
    try:
        async for message in query(prompt="/review-pr", options=ClaudeAgentOptions(max_turns=3)):
            # Process review feedback
            pass
    except Exception as error:
        # A single-shot query() raises after yielding an error result,
        # so the second query below still runs.
        print(f"Session ended with an error: {error}")

    # Run specific tests
    async for message in query(prompt="/test auth", options=ClaudeAgentOptions(max_turns=5)):
        # Handle test results
        pass


asyncio.run(main())