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google__adk-docs/docs/tools/gemini-api/code-execution.md
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Code Execution Execute code and debug using Gemini models /adk-docs/assets/tools-gemini-spark.svg

Code Execution with Gemini API

Supported in ADKPython v0.1.0Java v0.2.0

The built_in_code_execution tool enables the agent to execute code, specifically when using Gemini 2 and higher models. This allows the model to perform tasks like calculations, data manipulation, or running small scripts.

!!! warning "Warning: Single tool per agent limitation"

This tool can only be used ***by itself*** within an agent instance.
For more information about this limitation and workarounds, see
[Limitations for ADK tools](/adk-docs/tools/limitations/#one-tool-one-agent).

=== "Python"

```py
--8<-- "examples/python/snippets/tools/built-in-tools/code_execution.py"
```

=== "Java"

```java
--8<-- "examples/java/snippets/src/main/java/tools/CodeExecutionAgentApp.java:full_code"
```