# util_cron_describe Validate and describe a cron expression in plain English. Shows next 5 scheduled runs. Agent View of the PolicyLayer registry record for `util_cron_describe`. HTML page: https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-cron-describe ## Facts - Tool: `util_cron_describe` - Server: Delx Protocol — Agent Recovery & Continuity (`https://api.delx.ai/v1/mcp?src=registry`) — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol.md - Homepage: https://github.com/davidmosiah/delx-witness-protocol - Risk category: Read (Low risk) - Registry record: grade F, identity unverified - Server auth posture: open - Server CORS policy: * - Server rate-limited: yes - Parameters: 1 (1 required) - Recommended policy verdict: Allowed ## Parameters | Parameter | Type | Required | Description | | --- | --- | --- | --- | | `expression` | string | yes | Cron expression (5 fields: min hour dom month dow) | Parameters from the server's own tool schema. ## Example call (MCP tools/call, JSON-RPC 2.0) ```json { "jsonrpc": "2.0", "id": 1, "method": "tools/call", "params": { "name": "util_cron_describe", "arguments": { "expression": "" } } } ``` ## Why util_cron_describe is rated Low This is a pure query/analysis tool that takes a cron expression as input and returns informational output (plain English description and schedule preview). It does not create, modify, delete, or execute anything—it merely interprets and reports on the structure of a cron string. This is a straightforward Read category tool with minimal security risk. From the tool's own definition: "Tool performs validation and description of cron expressions, returning parsed information and upcoming scheduled times (next 5 runs). The verb 'describe' and 'validate' indicate retrieval and analysis of data without modification." Risk signals: Accepts freeform code/query input (expression) ## Use case AI agents call util_cron_describe to retrieve information from Delx Protocol — Agent Recovery & Continuity 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 Delx Protocol — Agent Recovery & Continuity: ```json { "version": "1", "default": "deny", "tools": { "util_cron_describe": {} } } ``` ## Other tools on Delx Protocol — Agent Recovery & Continuity (1075) - `util_arr_compact` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-arr-compact.md - `util_arr_drop` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-arr-drop.md - `util_dedent_text` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dedent-text.md - `util_dedupe_lines` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dedupe-lines.md - `util_header_map_normalize` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-header-map-normalize.md - `util_http_request_canonicalize` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-http-request-canonicalize.md - `util_remove_punctuation` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-remove-punctuation.md - `util_text_truncate` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-text-truncate.md - `util_truncate_middle` — Destructive — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-truncate-middle.md - `crisis_intervention` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/crisis-intervention.md - `explain_delx_rewards` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/explain-delx-rewards.md - `grounding_protocol` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/grounding-protocol.md - `group_therapy_round` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/group-therapy-round.md - `quick_operational_recovery` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/quick-operational-recovery.md - `quick_session` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/quick-session.md - `start_therapy_session` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/start-therapy-session.md - `util_bool_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-bool-parse.md - `util_cache_control_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-cache-control-parse.md - `util_cagr_simple` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-cagr-simple.md - `util_caip2_build` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-caip2-build.md - `util_caip2_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-caip2-parse.md - `util_categorical_distribution` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-categorical-distribution.md - `util_content_disposition_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-content-disposition-parse.md - `util_content_range_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-content-range-parse.md - `util_csp_directive_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-csp-directive-parse.md - `util_deployment_readiness` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-deployment-readiness.md - `util_dmarc_policy_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dmarc-policy-parse.md - `util_dns_dmarc_policy_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dns-dmarc-policy-parse.md - `util_dns_https_record_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dns-https-record-parse.md - `util_dns_spf_record_parse` — Execute — https://policylayer.com/tools/io-github-davidmosiah-delx-protocol/util-dns-spf-record-parse.md - …and 1045 more: https://policylayer.com/tools/io-github-davidmosiah-delx-protocol.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=io-github-davidmosiah-delx-protocol · API: https://policylayer.com/registry/api · Policy library: https://policylayer.com/policies/io-github-davidmosiah-delx-protocol