Five-field cron shape
https://agent-observatory-sensor.nolimit-observatory.workers.dev/s/cron-ok/mcp ↗
Description
Five-field cron shape
What our measurements say
Five-field cron shape is a remote MCP server published at agent-observatory-sensor.nolimit-observatory.workers.dev. It has been probed 7 times since 9/12/2026. It answered in 7 of them (100.0%), a near-uninterrupted record. Median response time is 38 ms, placing it among the faster endpoints. It exposes a broad tool surface of 30 tools. On the protocol side it still runs 2025-11-25 and has not moved to the newer spec.
Agent readability score
Can an LLM agent pick the right tool here — names, descriptions and parameter clarity are assessed.
Agent readability score
Strengths
- Some tools have clear, descriptive names (e.g., 'utc-time', 'timezone').
- A few descriptions explicitly state use cases (e.g., 'normalize-url' explains dropping query/fragment).
Weaknesses
- Most tool names are vague or repetitive (e.g., 'cron-ok', 'validate-json').
- Descriptions are overly generic or identical across tools (e.g., 'Five-field cron shape').
- All parameters are optional with no guidance on required inputs, causing ambiguity.
- High tool overlap (e.g., 'browser-url-ok' vs. 'playwright-url-ok').
- No error handling or constraints documented for any tool.
cron-ok— Name and description provide no actionable context for usage.utc-time— Description lacks specificity on when to use it.timezone— Parameters are all optional without required fields specified.validate-json— Redundant parameters (e.g., 'json' is both input and parameter).browser-url-ok— Duplicates functionality with 'playwright-url-ok'.
Verdict
Event narrative
Sign up free to generateSchema compliance
tools/list structure, inputSchema validity, and a functional smoke test — the components of the 0-100 score.
- tools/list schema valid
- inputSchema is valid JSON Schema
- Smoke test passed (inspect-robots, 44ms)
- Cold-start: cold 36ms → warm 34ms (penalty 2ms)
Tools
Tools the server advertised in the latest measurement — measured, not catalog-claimed.
cron-okFive-field cron shape
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
utc-timeCurrent UTC timestamp.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
timezoneCurrent time in a named IANA timezone.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
validate-jsonCheck whether a body is valid JSON. The body is discarded.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
normalize-urlReturn origin, host, and path for a URL. Query and fragment are dropped.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
inspect-robotsFetch a public robots.txt and return group counts only.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
domain-shapeSplit a hostname into labels without WHOIS or ownership data.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
citationReturn host, scheme, and HTTP status for a URL. Page content is not stored.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
compatibilityShow how this request is classified. No identifiers are retained.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
status-catalogShort catalog of common HTTP status codes.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
iana-zonesCommon IANA timezone names for clock calls.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
web-fetchHTTP status and content type for a public URL. Body discarded.
zonestringjsonstringurlstringhoststringcitystringquerystringpathstringrefstringfeedstring
Availability history
Event log
Derived by comparing consecutive probes — changes in era, protocol version, build and reachability.
- Added to watch — era: Legacy
Get your badge
Add this badge to your README — it updates automatically as measurements change.
[](https://mcpmetrics.io/servers/io-github-sadri-dridi-cron-ok)<a href="https://mcpmetrics.io/servers/io-github-sadri-dridi-cron-ok"><img src="https://mcpmetrics.io/badge/io.github.sadri-dridi/cron-ok/era.svg" alt="mcpmetrics"></a>You are seeing the last 7 days. Sign up for the full history. Which check failed and why is in the dashboard.
Sign up free to seeSimilar MCP servers
The catalog entries whose name and description are closest to this one, found with the same index the search box uses.
- UTC cron five-field shapeagent-observatory-sensor.nolimit-observatory.workers.dev
UTC cron five-field shape
- Six-field cron shapeagent-observatory-sensor.nolimit-observatory.workers.dev
Six-field cron shape
- CPE 2.3 wfn field count, value discardedagent-observatory-sensor.nolimit-observatory.workers.dev
CPE 2.3 wfn field count, value discarded
- mailto: shape, address discardedagent-observatory-sensor.nolimit-observatory.workers.dev
mailto: shape, address discarded
- bcrypt $2 hash shape, value discardedagent-observatory-sensor.nolimit-observatory.workers.dev
bcrypt $2 hash shape, value discarded
- kebab-case shape, text discardedagent-observatory-sensor.nolimit-observatory.workers.dev
kebab-case shape, text discarded
Comments
Sign in to write a comment
No comments yet. Be the first.