impact_analyze
Analyze the impact of changing a file before making edits. Scans dependents, exported symbols, and usage patterns to estimate risk level (low/medium/high/critical). Returns: affected files, exported symbols at risk, suggested test targets, and overall risk assessment.
This record as markdown: /tools/20alexl-claude-engram/impact-analyze.md
What impact_analyze does on Claude Engram
AI agents call impact_analyze to retrieve information from Claude Engram without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere.
Why impact_analyze is rated Low
impact_analyze is purely informational—it reads/scans existing code structure and patterns to provide an impact assessment before changes are made. It does not execute code, modify files, delete data, or commit financial transactions. The tool is a planning aid that estimates risk but does not itself implement any changes. This is a Read operation with minimal blast radius.
From the tool's definition Tool performs analysis and scanning of code dependencies and usage patterns to estimate impact. Verbs: 'Analyze', 'Scans dependents', 'estimate risk level', 'Returns: affected files, exported symbols at risk'.
Attacks that exploit this kind of access
The rule that runs impact_analyze safely
PolicyLayer is an MCP gateway: it sits between your AI agents and Claude Engram, and checks every tool call against a rule you set before the call runs. Nothing changes on the server itself. For impact_analyze, this is the rule to start with:
impact_analyze 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 Claude Engram, apply this rule, and every impact_analyze call is checked against it from then on.
Questions about impact_analyze
Analyze the impact of changing a file before making edits. Scans dependents, exported symbols, and usage patterns to estimate risk level (low/medium/high/critical). Returns: affected files, exported symbols at risk, suggested test targets, and overall risk assessment. It is categorised as a Read tool in the Claude Engram MCP Server, which means it retrieves data without modifying state.
Register the Claude Engram MCP server in PolicyLayer and add a rule for impact_analyze: 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 Claude Engram. Nothing to install.
impact_analyze 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 impact_analyze 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 impact_analyze. 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.
impact_analyze is provided by the Claude Engram MCP server (20alexl/claude-engram). PolicyLayer sits as a proxy in front of this server to enforce policies before tool calls reach the server.
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