Manage platform authentication. Add, remove, or list accounts.
AI agents use web_auth to create or update resources in Spectrawl — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your Spectrawl environment.
The tool manages authentication accounts — adding and removing accounts are write operations that modify stored credentials/session data. 'Remove' could be considered destructive, but since authentication entries can typically be re-added, it is treated as reversible. 'List' is a read sub-action, but the dominant capability is write (add/remove).
From the tool's definition Manage platform authentication. Add, remove, or list accounts.
Documented attack patterns abuse exactly the kind of access web_auth gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Spectrawl, and nothing reaches the server without passing your rules. This is the rule we recommend for web_auth:
{
"version": "1",
"default": "deny",
"tools": {
"web_auth": {
"limits": [
{
"counter": "web_auth_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}web_auth stays usable, but capped — an agent stuck in a loop can't make hundreds of changes a minute. Everything else on the server is denied unless you say otherwise.
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Manage platform authentication. Add, remove, or list accounts. It is categorised as a Write tool in the Spectrawl MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the Spectrawl MCP server in PolicyLayer and add a rule for web_auth: 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 Spectrawl. Nothing to install.
web_auth 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 web_auth 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 web_auth. 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.
web_auth is provided by the Spectrawl MCP server (pyx-corp/spectrawl). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Spectrawl, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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5 Spectrawl tools catalogued and risk-classified — across an index of 43,000+ MCP servers.