Coding
CodingTools gives an agent four core file/shell tools to perform any coding task in a scoped directory.
CodingTools is a minimal toolkit for coding agents. Four core tools (read, edit, write, shell) let an agent run tests, use git, install packages, and edit code. Three exploration tools (grep, find, ls) are opt-in.
Prerequisites
Create and activate a virtual environment, then install:
uv pip install agno openaiThe Agent model uses an OpenAI key, separately from any toolkit provider credentials.
Set OpenAI Key
Set your OPENAI_API_KEY as an environment variable. You can get one from OpenAI.
export OPENAI_API_KEY=sk-***Example
from agno.agent import Agent
from agno.models.openai import OpenAIResponses
from agno.tools.coding import CodingTools
agent = Agent(
model=OpenAIResponses(id="gpt-5.2"),
tools=[CodingTools(base_dir=".")],
instructions="You are a coding assistant. Use the coding tools to help the user.",
markdown=True,
)
agent.print_response(
"List the files in the current directory and read the README.md file if it exists.",
stream=True,
)CodingTools can run arbitrary shell commands. By default restrict_to_base_dir=True checks explicit file paths, visible shell arguments and allowed_commands. An allowed program still executes with the process's filesystem, environment and network permissions. Keep human supervision for untrusted prompts, and run inside a sandbox (container, VM, or Daytona) for untrusted code execution.
Toolkit Params
| Parameter | Type | Default | Description |
|---|---|---|---|
base_dir | Optional[Path|str] | cwd | Root directory for file operations. |
restrict_to_base_dir | bool | True | Check explicit file paths and shell arguments against base_dir; this does not sandbox executed programs. |
max_lines | int | 2000 | Maximum lines returned before truncating. |
max_bytes | int | 50000 | Maximum bytes returned before truncating. |
shell_timeout | int | 120 | Timeout in seconds for shell commands. |
enable_read_file | bool | True | Enable the read_file tool. |
enable_edit_file | bool | True | Enable the edit_file tool. |
enable_write_file | bool | True | Enable the write_file tool. |
enable_run_shell | bool | True | Enable the run_shell tool. |
enable_grep | bool | False | Enable the grep tool. |
enable_find | bool | False | Enable the find tool. |
enable_ls | bool | False | Enable the ls tool. |
instructions | Optional[str] | None | Custom instructions for the agent. Built from the enabled tools if None. |
add_instructions | bool | True | Add the instructions to the agent's system message. |
all | bool | False | Enable all tools regardless of individual flags. |
allowed_commands | Optional[List[str]] | sensible set | Allowed shell command names when restrict_to_base_dir is True. |
Toolkit Functions
| Function | Description |
|---|---|
read_file | Read a file with line numbers and pagination (offset, limit). |
edit_file | Exact text find-and-replace, returns a diff. |
write_file | Create or overwrite a file. |
run_shell | Execute a shell command with a timeout. |
grep | Search file contents (opt-in). |
find | Find files by glob pattern (opt-in). |
ls | List directory contents (opt-in). |
Developer Resources
- Tools source
- Basic usage
- All tools
- Workspace toolkit for a confirmation-gated alternative