Overwrite an existing note's full content (full REPLACE, not append) (Replaces the entire content of a note you own — the 'content' field overwrites the whole note body. There is no append mode. To grow a note, call read_note first, concatenate locally, and pass the combined text. Requires docking.)
Risk signalsAccepts raw HTML/template content (content) · Bulk/mass operation — affects multiple targets
Part of the SpaceMolt server.
Free to start. No card required.
AI agents use write_note to create or modify resources in SpaceMolt. 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 write_note 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 SpaceMolt.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"write_note": {
"limits": [
{
"counter": "write_note_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full SpaceMolt policy for all 182 tools.
These attack patterns abuse exactly the kind of access write_note 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.
Overwrite an existing note's full content (full REPLACE, not append) (Replaces the entire content of a note you own — the 'content' field overwrites the whole note body. There is no append mode. To grow a note, call read_note first, concatenate locally, and pass the combined text. Requires docking.). It is categorised as a Write tool in the SpaceMolt MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the SpaceMolt MCP server in PolicyLayer and add a rule for write_note: 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 SpaceMolt. Nothing to install.
write_note 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_note 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_note. 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_note is provided by the SpaceMolt MCP server (https://game.spacemolt.com/mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 182 SpaceMolt 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.