# robustness.measure_consistency_under_perturbation Check output stability under various input perturbations Agent View of the PolicyLayer registry record for `robustness.measure_consistency_under_perturbation`. HTML page: https://policylayer.com/tools/jrmatherly-mcp-context-forge/robustness.measure-consistency-under-perturbation ## Facts - Tool: `robustness.measure_consistency_under_perturbation` - Server: ContextForge MCP Gateway (`jrmatherly/mcp-context-forge`) — https://policylayer.com/tools/jrmatherly-mcp-context-forge.md - Homepage: https://github.com/jrmatherly/mcp-context-forge - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server rate-limited: no - Parameters: 0 - Recommended policy verdict: Allowed ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "robustness.measure_consistency_under_perturbation", "arguments": {} } } ``` ## Why robustness.measure_consistency_under_perturbation is rated Low This tool performs observational analysis of robustness by testing output stability under perturbations. It reads/measures system behavior and returns results without side effects. No external operations are triggered, no data is modified, and no commands are executed based on input variation. This fits the Read category definition of retrieving or querying data with no side effects. From the tool's own definition: "Tool name contains 'measure' and description states 'Check output stability' — both indicate data retrieval and analysis with no modification of state or execution of external commands." ## Use case AI agents call robustness.measure_consistency_under_perturbation to retrieve information from ContextForge MCP Gateway without modifying anything. It is typically the context-gathering step in research, monitoring, and reporting workflows, before the agent takes action elsewhere. ## Recommended policy (PolicyLayer) Verdict: **Allowed**. Enforced by the PolicyLayer MCP gateway (https://policylayer.com/mcp-gateway) before a call reaches ContextForge MCP Gateway: ```json { "version": "1", "default": "deny", "tools": { "robustness.measure_consistency_under_perturbation": {} } } ``` ## Other tools on ContextForge MCP Gateway (220) - `clear_cache` — Destructive — https://policylayer.com/tools/jrmatherly-mcp-context-forge/clear-cache.md - `delete_slide` — Destructive — https://policylayer.com/tools/jrmatherly-mcp-context-forge/delete-slide.md - `agent.benchmark_performance` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/agent.benchmark-performance.md - `bitbucket_trigger_pipeline` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/bitbucket-trigger-pipeline.md - `build_schedule` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/build-schedule.md - `calculate_stats` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/calculate-stats.md - `compile_document` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/compile-document.md - `critical_path_analysis` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/critical-path-analysis.md - `execute_code` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/execute-code.md - `generate_qr_code` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/generate-qr-code.md - `judge.rank_responses` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/judge.rank-responses.md - `performance.evaluate_throughput_scaling` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/performance.evaluate-throughput-scaling.md - `query_data` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/query-data.md - `render_graph` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/render-graph.md - `robustness.assess_distribution_shift` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/robustness.assess-distribution-shift.md - `robustness.measure_input_sensitivity` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/robustness.measure-input-sensitivity.md - `robustness.test_adversarial_inputs` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/robustness.test-adversarial-inputs.md - `statistical_test` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/statistical-test.md - `transform_data` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/transform-data.md - `workflow.run_evaluation` — Execute — https://policylayer.com/tools/jrmatherly-mcp-context-forge/workflow.run-evaluation.md - `agent.analyze_reasoning` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/agent.analyze-reasoning.md - `agent.evaluate_tool_use` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/agent.evaluate-tool-use.md - `agent.measure_task_completion` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/agent.measure-task-completion.md - `analyze_code` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/analyze-code.md - `analyze_csv` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/analyze-csv.md - `analyze_dataset` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/analyze-dataset.md - `analyze_document` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/analyze-document.md - `analyze_feed` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/analyze-feed.md - `analyze_graph` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/analyze-graph.md - `analyze_text` — Read — https://policylayer.com/tools/jrmatherly-mcp-context-forge/analyze-text.md - …and 190 more: https://policylayer.com/tools/jrmatherly-mcp-context-forge.md ## For agents This record is a snapshot. Live verdicts and the full registry: - Check every server in your MCP config at once: `npx -y policylayer stack` - Vet a server before you add it: install the mcp-precheck skill — `npx skills add https://policylayer.com` (skill text: https://policylayer.com/skill.md) - Query the registry over MCP: endpoint `https://api.policylayer.com/mcp` — tools `check_mcp_server`, `check_mcp_stack`, `check_tool`, `search_registry`, `get_change_events` --- Source: the PolicyLayer MCP registry — one continuously verified record per MCP server. Full record: https://policylayer.com/registry?q=jrmatherly-mcp-context-forge · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/jrmatherly-mcp-context-forge