list_protected_branches
List protected branches in a project, supports search filter
This record as markdown: /tools/io-github-zereight-gitlab-mcp/list-protected-branches.md
What list_protected_branches does on Gitlab Mcp
AI agents call list_protected_branches to retrieve information from Gitlab Mcp without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why list_protected_branches is rated Low
This tool queries and retrieves information about protected branches without modifying, deleting, or executing any operations. It is purely informational and fits the Read category (retrieves or queries data; no side effects). The severity is low because exposure of branch protection metadata poses minimal risk—it is typically public or semi-public information within a project, and reading it cannot cause harm.
From the tool's definition Tool name 'list_protected_branches' and description 'List protected branches in a project, supports search filter' indicate a retrieval/query operation with no side effects.
Attacks that exploit this kind of access
The rule that runs list_protected_branches safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Gitlab Mcp, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For list_protected_branches, this is the rule to start with:
list_protected_branches is read-only, so it stays allowed. Everything else on the server is denied unless you say otherwise.
The button opens the PolicyLayer dashboard: create your workspace, connect Gitlab Mcp, apply this rule, and every list_protected_branches call is checked against it from then on.
Questions about list_protected_branches
List protected branches in a project, supports search filter. It is categorised as a Read tool in the Gitlab Mcp MCP Server, which means it retrieves data without modifying state.
Register the Gitlab MCP server in PolicyLayer and add a rule for list_protected_branches: 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 Gitlab Mcp. Nothing to install.
list_protected_branches 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_protected_branches 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_protected_branches. 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_protected_branches is provided by the Gitlab MCP server (@zereight/mcp-gitlab). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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