Get the list of topics for a repository
AI agents call list_repo_topics to retrieve information from Forgejo without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool queries and retrieves metadata (topics) associated with a repository. It performs a read-only operation with no capability to modify, delete, or execute code. The blast radius of misuse is minimal—an AI agent could only enumerate repository topics, which is non-sensitive metadata typically visible to users with repository access.
From the tool's definition Tool name 'list_repo_topics' and description 'Get the list of topics for a repository' indicate a retrieval operation with no side effects.
Documented attack patterns abuse exactly the kind of access list_repo_topics gives an agent:
PolicyLayer is an MCP gateway — it sits between your AI agents and Forgejo, and nothing reaches the server without passing your rules. This is the rule we recommend for list_repo_topics:
{
"version": "1",
"default": "deny",
"tools": {
"list_repo_topics": {}
}
}list_repo_topics is read-only, so it stays allowed — but everything else on the server is denied unless you say otherwise.
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Get the list of topics for a repository. It is categorised as a Read tool in the Forgejo MCP Server, which means it retrieves data without modifying state.
Register the Forgejo MCP server in PolicyLayer and add a rule for list_repo_topics: 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 Forgejo. Nothing to install.
list_repo_topics is a Read tool with low risk. Read-only tools are generally safe to allow by default.
Yes. Add a rate_limit block to the list_repo_topics 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 list_repo_topics. 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.
list_repo_topics is provided by the Forgejo MCP server (sqcows/forgejo-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Start from Forgejo, add the rest of your stack, and see everything your agents can call. Then put policy on all of it.
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103 Forgejo tools catalogued and risk-classified — across an index of 43,000+ MCP servers.