Get detailed information about a specific credential including the access token
AI agents call get_credential_details to retrieve information from Credential Manager MCP Server without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This is a Read operation—it retrieves and queries credential data (specifically access tokens) without creating, modifying, or deleting anything. However, the severity is elevated to medium (rather than low) because the tool accesses sensitive authentication tokens, which could pose a risk if an AI agent retrieves credentials belonging to the wrong account or shares them inappropriately.
From the tool's definition Tool name and description: 'Get detailed information about a specific credential including the access token'. The verb 'Get' and phrase 'detailed information' indicate data retrieval with no modification.
Attacks that exploit this kind of access
Get detailed information about a specific credential including the access token. It is categorised as a Read tool in the Credential Manager MCP Server MCP Server, which means it retrieves data without modifying state.
Register the Credential Manager MCP Server MCP server in PolicyLayer and add a rule for get_credential_details: 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 Credential Manager MCP Server. Nothing to install.
get_credential_details 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 get_credential_details 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 get_credential_details. 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.
get_credential_details is provided by the Credential Manager MCP Server MCP server (mclamee/credential-manager-mcp). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
Every MCP server has a record like this.
Type a name, get the same breakdown: verified identity, auth posture, risk grade, capabilities, recommended policy.
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