Finds what will hurt in a Django project - cascade impact, N+1 queries, unsafe migrations, unscoped tenant reads - as an MCP server and a CLI. Tested against 18 public projects.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add django-chainsaw --env DJANGO_CHAINSAW_PROJECT_PATH='<DJANGO_CHAINSAW_PROJECT_PATH>' --env DJANGO_CHAINSAW_SETTINGS_MODULE='<DJANGO_CHAINSAW_SETTINGS_MODULE>' -- uvx django-chainsaw-mcp~/.codex/config.toml
[mcp_servers.django-chainsaw]
command = "uvx"
args = ["django-chainsaw-mcp"]
env = { DJANGO_CHAINSAW_PROJECT_PATH = "<DJANGO_CHAINSAW_PROJECT_PATH>", DJANGO_CHAINSAW_SETTINGS_MODULE = "<DJANGO_CHAINSAW_SETTINGS_MODULE>" }
# codex mcp add django-chainsaw --env DJANGO_CHAINSAW_PROJECT_PATH='<DJANGO_CHAINSAW_PROJECT_PATH>' --env DJANGO_CHAINSAW_SETTINGS_MODULE='<DJANGO_CHAINSAW_SETTINGS_MODULE>' -- uvx django-chainsaw-mcp~/.cursor/mcp.json
{
"mcpServers": {
"django-chainsaw": {
"command": "uvx",
"args": [
"django-chainsaw-mcp"
],
"env": {
"DJANGO_CHAINSAW_PROJECT_PATH": "<DJANGO_CHAINSAW_PROJECT_PATH>",
"DJANGO_CHAINSAW_SETTINGS_MODULE": "<DJANGO_CHAINSAW_SETTINGS_MODULE>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"django-chainsaw": {
"type": "stdio",
"command": "uvx",
"args": [
"django-chainsaw-mcp"
],
"env": {
"DJANGO_CHAINSAW_PROJECT_PATH": "<DJANGO_CHAINSAW_PROJECT_PATH>",
"DJANGO_CHAINSAW_SETTINGS_MODULE": "<DJANGO_CHAINSAW_SETTINGS_MODULE>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"django-chainsaw": {
"command": "uvx",
"args": [
"django-chainsaw-mcp"
],
"env": {
"DJANGO_CHAINSAW_PROJECT_PATH": "<DJANGO_CHAINSAW_PROJECT_PATH>",
"DJANGO_CHAINSAW_SETTINGS_MODULE": "<DJANGO_CHAINSAW_SETTINGS_MODULE>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"django-chainsaw": {
"command": "uvx",
"args": [
"django-chainsaw-mcp"
],
"env": {
"DJANGO_CHAINSAW_PROJECT_PATH": "<DJANGO_CHAINSAW_PROJECT_PATH>",
"DJANGO_CHAINSAW_SETTINGS_MODULE": "<DJANGO_CHAINSAW_SETTINGS_MODULE>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"django-chainsaw": {
"command": "uvx",
"args": [
"django-chainsaw-mcp"
],
"env": {
"DJANGO_CHAINSAW_PROJECT_PATH": "<DJANGO_CHAINSAW_PROJECT_PATH>",
"DJANGO_CHAINSAW_SETTINGS_MODULE": "<DJANGO_CHAINSAW_SETTINGS_MODULE>"
}
}
}
}Environment variables
DJANGO_CHAINSAW_PROJECT_PATHDJANGO_CHAINSAW_SETTINGS_MODULE
Replace the placeholders with your own credentials and keep them out of version control.