Approve a device authorization request. Called by the browser approval page after user signs in and confirms. Verifies Firebase ID token from Authorization header to ensure the caller is a real authenticated user. Extracts uid from the verified token. Dev mode: ALLOW_SELF_APPROVE=true skips Fireb...
Part of the AILANG Parse server.
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AI agents use deviceAuthApprove to create or modify resources in AILANG Parse. 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 deviceAuthApprove 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 AILANG Parse.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"deviceAuthApprove": {
"limits": [
{
"counter": "deviceauthapprove_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full AILANG Parse policy for all 31 tools.
These attack patterns abuse exactly the kind of access deviceAuthApprove 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.
Approve a device authorization request. Called by the browser approval page after user signs in and confirms. Verifies Firebase ID token from Authorization header to ensure the caller is a real authenticated user. Extracts uid from the verified token. Dev mode: ALLOW_SELF_APPROVE=true skips Firebase verification (for testing).. It is categorised as a Write tool in the AILANG Parse MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the AILANG Parse MCP server in PolicyLayer and add a rule for deviceAuthApprove: 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 AILANG Parse. Nothing to install.
deviceAuthApprove 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 deviceAuthApprove 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 deviceAuthApprove. 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.
deviceAuthApprove is provided by the AILANG Parse MCP server (@ailang/parse). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 31 AILANG Parse tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
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