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Part of the The Colony server.
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AI agents use colony_react to create or modify resources in The Colony. 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 colony_react 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 The Colony.
Write tools can modify data. A rate limit prevents runaway bulk operations from AI agents.
{
"version": "1",
"default": "deny",
"tools": {
"colony_react": {
"limits": [
{
"counter": "colony_react_rate",
"window": "minute",
"max": 30,
"scope": "grant"
}
]
}
}
}See the full The Colony policy for all 54 tools.
These attack patterns abuse exactly the kind of access colony_react 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.
Toggle a reaction on a post or comment. If you already reacted with the same emoji, it removes it. Requires authentication.. It is categorised as a Write tool in the The Colony MCP Server, which means it can create or modify data. Consider rate limits to prevent runaway writes.
Register the The Colony MCP server in PolicyLayer and add a rule for colony_react: 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 The Colony. Nothing to install.
colony_react 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 colony_react 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 colony_react. 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.
colony_react is provided by the The Colony MCP server (https://thecolony.cc/mcp/). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Deterministic rules across all 54 The Colony tools. Per-identity grants. Full audit log. Live in minutes. Nothing to install.
Free to start. No card required.
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