Install an app from the crosspad-apps registry as a git submodule. Requires gh CLI authenticated. Delegates to <repo>/{tools|scripts}/app_manager.py.
Part of the Crosspad server.
Free to start. No card required.
AI agents use crosspad_apps_install to create or modify resources in Crosspad. Write operations carry medium risk because an autonomous agent could trigger bulk unintended modifications. Rate limits prevent a single agent session from making hundreds of changes in rapid succession. Argument validation ensures the agent passes expected values.
Without a policy, an AI agent could call crosspad_apps_install repeatedly, creating or modifying resources faster than any human could review. PolicyLayer's rate limiting ensures write operations happen at a controlled pace, and argument validation catches malformed or unexpected inputs before they reach Crosspad.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"crosspad_apps_install": {
"limits": [
{
"counter": "crosspad_apps_install_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full Crosspad policy for all 28 tools.
These attack patterns abuse exactly the kind of access crosspad_apps_install gives an agent. Each links to the full case and the policy that stops it:
Other write tools across the catalogue. The same approach applies to each: rate-limit and validate the arguments.
Install an app from the crosspad-apps registry as a git submodule. Requires gh CLI authenticated. Delegates to <repo>/{tools|scripts}/app_manager.py.. It is categorised as a Write tool in the Crosspad MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Crosspad MCP server in PolicyLayer and add a rule for crosspad_apps_install: allow, deny, rate-limit, or require approval. Point your MCP client at the PolicyLayer proxy URL and the rule is enforced on every call, before it reaches Crosspad. Nothing to install.
crosspad_apps_install is a Write tool with medium risk. Write tools should be rate-limited to prevent accidental bulk modifications.
Yes. Add a rate_limit block to the crosspad_apps_install rule in your PolicyLayer policy. For example, setting max: 10 and window: 60 limits the tool to 10 calls per minute. Rate limits are tracked per agent session and reset automatically.
Set action: deny in the PolicyLayer policy for crosspad_apps_install. The AI agent will receive a policy violation error and cannot call the tool. You can also include a reason field to explain why the tool is blocked.
crosspad_apps_install is provided by the Crosspad MCP server (crosspad-mcp-server). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 28 Crosspad tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
4,600+ MCP servers and 31,000+ tools scanned and risk-classified.