Anthropic Server Tools
Anthropic provides built-in server-side tools that allow the model to perform specific actions like executing code or editing files in a sandboxed environment.
Overview
Anthropic's server tools can be enabled when calling the model. These tools are executed on Anthropic's infrastructure.
Available Server Tools
Code Execution
Anthropic provides two main tools for code execution:
- Bash (
bash_code_execution) - Allows the model to run bash commands. - Text Editor (
text_editor_code_execution) - Allows the model to create and edit files, often used in conjunction with Python execution.
To enable these tools you need to explicitly enable the code execution using the tools option:
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$result = $platform->invoke('claude-3-5-sonnet-latest', $messages, [
'tools' => [[
'type' => 'code_execution_20250825',
'name' => 'code_execution',
]],
]);Handling Results
When server tools are used, the model may return multiple content blocks. Symfony AI abstracts these into a MultiPartResult.
The individual parts can be any `ResultInterface` instances, but in practice they consist of the following result types:
- TextResult - Normal text response.
- ExecutableCodeResult - The code the model intended to run.
- CodeExecutionResult - The output of the executed code (stdout/stderr).
Example
See examples/anthropic/server-tools-code-execution.php for a complete working example.