Convert a single WordPress post and write it as a Markdown file to the Astro content directory. Supports dry_run mode.
AI agents use write_post to create or update resources in WP Astro MCP — usually the action step of a workflow, after the agent has gathered context. Every call changes real data in your WP Astro MCP environment.
This tool creates new files (Markdown representations of WordPress posts) in the target filesystem. While the action is reversible (files can be deleted), it modifies the Astro project structure by adding content. The presence of dry_run mode suggests the developers recognized the potential for unintended side effects.
From the tool's definition Tool description states it will 'write it as a Markdown file to the Astro content directory' and 'Supports dry_run mode'. The verb 'write' and the explicit act of creating/persisting files to a directory confirm this is a Write operation.
Documented attack patterns abuse exactly the kind of access write_post gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and WP Astro MCP, and nothing reaches the server without passing your rules. This is the rule we recommend for write_post:
{
"version": "1",
"default": "deny",
"tools": {
"write_post": {
"limits": [
{
"counter": "write_post_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}write_post 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.
Free to start. No card required.
Convert a single WordPress post and write it as a Markdown file to the Astro content directory. Supports dry_run mode. It is categorised as a Write tool in the WP Astro MCP MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the WP Astro MCP server in PolicyLayer and add a rule for write_post: 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 WP Astro MCP. Nothing to install.
write_post 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 write_post 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 write_post. 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.
write_post is provided by the WP Astro MCP server (vapvarun/wp-astro-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from WP Astro MCP, 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.
60 WP Astro MCP tools catalogued and risk-classified — across an index of 43,000+ MCP servers.