Perform an authenticated action on a platform (post, comment, like, etc). Supports X/Twitter, Reddit, Dev.to.
AI agents use web_act 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.
This tool creates or modifies data on social platforms by posting, commenting, and liking on behalf of authenticated users. These actions are reversible in principle (posts can be deleted), so Write is the appropriate category rather than Destructive.
From the tool's definition "Perform an authenticated action on a platform (post, comment, like, etc). Supports X/Twitter, Reddit, Dev.to."
Documented attack patterns abuse exactly the kind of access web_act 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_act:
{
"version": "1",
"default": "deny",
"tools": {
"web_act": {
"limits": [
{
"counter": "web_act_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}web_act 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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Perform an authenticated action on a platform (post, comment, like, etc). Supports X/Twitter, Reddit, Dev.to. 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_act: 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_act 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_act 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_act. 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_act 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.
Free to start. No card required.
5 Spectrawl tools catalogued and risk-classified — across an index of 43,000+ MCP servers.