Commit-time policy checks for AI agent writes (ALLOW/DENY/STEP_UP) with a tamper-evident audit log.
Setup
Choose your client, copy the config, then fill in any required environment variables.
claude mcp add writ --env WRIT_API_KEY='<WRIT_API_KEY>' --env WRIT_SPONSOR_TOKEN='<WRIT_SPONSOR_TOKEN>' -- uvx writ-mcp~/.codex/config.toml
[mcp_servers.writ]
command = "uvx"
args = ["writ-mcp"]
env = { WRIT_API_KEY = "<WRIT_API_KEY>", WRIT_SPONSOR_TOKEN = "<WRIT_SPONSOR_TOKEN>" }
# codex mcp add writ --env WRIT_API_KEY='<WRIT_API_KEY>' --env WRIT_SPONSOR_TOKEN='<WRIT_SPONSOR_TOKEN>' -- uvx writ-mcp~/.cursor/mcp.json
{
"mcpServers": {
"writ": {
"command": "uvx",
"args": [
"writ-mcp"
],
"env": {
"WRIT_API_KEY": "<WRIT_API_KEY>",
"WRIT_SPONSOR_TOKEN": "<WRIT_SPONSOR_TOKEN>"
}
}
}
}.vscode/mcp.json
{
"servers": {
"writ": {
"type": "stdio",
"command": "uvx",
"args": [
"writ-mcp"
],
"env": {
"WRIT_API_KEY": "<WRIT_API_KEY>",
"WRIT_SPONSOR_TOKEN": "<WRIT_SPONSOR_TOKEN>"
}
}
}
}~/.gemini/settings.json
{
"mcpServers": {
"writ": {
"command": "uvx",
"args": [
"writ-mcp"
],
"env": {
"WRIT_API_KEY": "<WRIT_API_KEY>",
"WRIT_SPONSOR_TOKEN": "<WRIT_SPONSOR_TOKEN>"
}
}
}
}claude_desktop_config.json
{
"mcpServers": {
"writ": {
"command": "uvx",
"args": [
"writ-mcp"
],
"env": {
"WRIT_API_KEY": "<WRIT_API_KEY>",
"WRIT_SPONSOR_TOKEN": "<WRIT_SPONSOR_TOKEN>"
}
}
}
}.trae/mcp.json
{
"mcpServers": {
"writ": {
"command": "uvx",
"args": [
"writ-mcp"
],
"env": {
"WRIT_API_KEY": "<WRIT_API_KEY>",
"WRIT_SPONSOR_TOKEN": "<WRIT_SPONSOR_TOKEN>"
}
}
}
}Environment variables
WRIT_API_KEYWRIT_SPONSOR_TOKEN
Replace the placeholders with your own credentials and keep them out of version control.