Fetch the full text excerpt for a chunk returned by search.
AI agents call get_source_excerpt to retrieve information from Caseware Kb without modifying anything — typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
This tool retrieves document excerpts from a knowledge base without creating, modifying, or deleting data. It has no side effects beyond data retrieval. While it accesses procurement documents, the blast radius of misuse is limited to information disclosure rather than operational, financial, or destructive impact. Classified as Read with low severity.
From the tool's definition Tool description states 'Fetch the full text excerpt' which retrieves data without modification. The sibling tools (find_document_gaps, get_order_documents, list_inventory_reports, search_knowledge_base) and server context confirm this server performs…
Attacks that exploit this kind of access
Fetch the full text excerpt for a chunk returned by search. It is categorised as a Read tool in the Caseware Kb MCP Server, which means it retrieves data without modifying state.
Register the Caseware Kb MCP server in PolicyLayer and add a rule for get_source_excerpt: 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 Caseware Kb. Nothing to install.
get_source_excerpt 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_source_excerpt 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_source_excerpt. 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_source_excerpt is provided by the Caseware Kb MCP server (leonardorhojas/caseware-procurement-kb). 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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