README.md
Covenant rule checking, hash-chained audit logs, and integrity verification.
@nobulex/mcp-server
Nobulex MCP compliance server — covenant rule checking, hash-chained audit logs, and integrity verification for any MCP-compatible agent.
Tools
| Tool | Description |
|---|---|
set_rules |
Set covenant rules using permit/forbid/require syntax |
check_action |
Check if an action is allowed or blocked by current rules |
get_audit_log |
Return the full hash-chained audit trail |
verify_log |
Verify integrity of the audit chain (detect tampering) |
Rule Syntax
forbid delete_user Users cannot be deleted
permit read_data Safe to read
require approval Must get approval first
forbid admin.* All admin actions blocked
forbid * Lockdown mode
Rules are evaluated in order — first match wins. Unmatched actions are allowed by default.
Setup
Claude Desktop
Add to your claude_desktop_config.json:
{
"mcpServers": {
"nobulex": {
"command": "npx",
"args": ["-y", "@nobulex/mcp-server"]
}
}
}
Config file locations:
- macOS:
~/Library/Application Support/Claude/claude_desktop_config.json - Windows:
%APPDATA%\Claude\claude_desktop_config.json
Cursor
Add to your Cursor MCP settings:
{
"mcpServers": {
"nobulex": {
"command": "npx",
"args": ["-y", "@nobulex/mcp-server"]
}
}
}
Any MCP Client
The server uses stdio transport. Run it with:
npx @nobulex/mcp-server
Development
npm install
npm run build
npm test
License
MIT
Tools (4)
set_rulesSet covenant rules using permit, forbid, and require syntax.check_actionCheck if an action is allowed or blocked by current rules.get_audit_logReturn the full hash-chained audit trail.verify_logVerify integrity of the audit chain to detect tampering.Configuration
claude_desktop_config.json
{"mcpServers": {"nobulex": {"command": "npx", "args": ["-y", "@nobulex/mcp-server"]}}}Try it
→Set a rule to forbid all admin actions.
→Check if the action 'delete_user' is currently allowed.
→Retrieve the full audit log to review recent agent activity.
→Verify the integrity of the audit log to ensure no tampering has occurred.