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BD opencron

Visual cron job dashboard for OpenClaw — live countdown timers, run history, calendar view

ClawHub Agent Skills author: Floris Jan-Werner van der Harst v1.0.1 MIT-0 10 files · 1 script body ≈ 991 tokens Open the sourceclawhub.ai↗ analyzed 3 d ago

As a process D 44/100 · Unfinished process — weak spots: result and completion, inputs and preconditions, failures and branches

ProcedureInfrastructureData and analyticsPersonal productivitytype and topics are labelled automatically from the skill text
Runs in: OpenClaw Claude / Claude Code ChatGPT / Codex Gemini CLI Cursor GitHub Copilot / VS Code Qwen Code Kimi Code CLI Z.ai (GLM) DeepSeek (Deep Code) Mistral Vibe LangChain (deepagents) Goose OpenCode
JSON
Technical rating
B
82/100
safety, quality, tests
Safety 60%
94
Quality 40%
65
Run on models
none yet
Process rating
D
44/100
Unfinished process
Result and completion w 14
0
Inputs and preconditions w 11
0
Failures and branches w 10
0
the three weakest of ten parameters · all ten
This is a copy of a skill from another catalog; the rating counts the canonical one: opencron (ClawHub)

How to improve

  1. Say in the description WHEN to use the skill ("use when…", example requests): that is the agent's main cue.
For the model run — optional
  • Your own cases (evals/evals.json, 4–6 real requests with expected answers): the full check would then run those instead of a model-drafted suite.
  • A spec.yaml with trigger phrases and assertions — a behaviour contract for CI; `skilltest init` writes a template.

Guard findings · 6

✓ No critical or high findings

Medium and low: 6
  • low Dangerous commands cmd-background-process README.md:42
    Starts a background / autostarted process
    nohup sh skills/opencron/watch_sync.sh &
  • low Exfiltration net-credential-use README.md:48
    Credential used in a network call (verify the destination is the intended service) (quoted — discussed, not commanded)
    open "http://$(curl -s ifconfig.me):${CANV…090}/cron.html?token=${OPENCLAW_GATEWAY_TOKEN}"
    quoted
  • low Dangerous commands cmd-background-process SKILL.md:42
    Starts a background / autostarted process
    nohup sh skills/opencron/watch_sync.sh &
  • low Exfiltration exfil-secret-in-url SKILL.md:60
    Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)
    http://${HOST_IP}:${CANV…090}/cron.html?token=…
    placeholder
  • low Exfiltration exfil-secret-in-url SKILL.md:119
    Credential passed in a URL query string (normal for some APIs — verify the host is the intended service) (placeholder value)
    See cron status on OpenCron: http://${HOST_IP}:${CANV…090}/cron.html?token=…
    placeholder
  • low Dangerous commands cmd-background-process watch_sync.sh:3
    Starts a background / autostarted process (code comment)
    # Run as: nohup sh skills/opencron/watch_sync.sh &
    comment

Files scanned: 10. Evidence is masked. Grey chips explain why severity was lowered.

Against the Agent Skills spec

  • warning description-no-when description does not say WHEN to use the skill (no "use when")

Process rating: all ten parameters 44/100

  • 0Result and completion. Does not say what the result is
  • 0Inputs and preconditions. Does not say what the process needs to start
  • 0Failures and branches. Linear process with no failure handling
  • 30Running it twice. 2 mutating operations with no state check
  • 40Consistency. Frontmatter name (opencron) differs from the folder (opencron-skill-repo)
  • 50When it triggers. No condition that starts the skill
  • 60Tools and files. Uses tools (web, python) that frontmatter does not declare
  • 100Steps. 22 steps
  • 100Execution cost. Instruction body is 991 tokens
  • 100Progress reporting. Reports progress

Everything here is measured from the skill text rather than judged by a model, so the numbers are checkable. A parameter weighs more when it is a more common reason for the process to stall.

Quality signals

  • +5Description has no quoted example phrases that should trigger the skill
  • +4Description does not say when NOT to use the skill (false activations)
  • +3Description length 90: 120–800 characters recommended
  • +3Output format is not stated: the model decides each time
  • -4Absolute local paths (C:\Users, /home/…): not portable
  • +1No license
  • +2Single-language instructions
  • +4Structure: 12 headings
  • +3Step-by-step instructions: 22 items
  • +4Has examples (7 code blocks)

Quality base 70; lint remarks subtract, signals add up to 100. Result: 65.

External checks

ClawHub: suspicious
This is a real cron dashboard skill, but it exposes token-bearing dashboard URLs, fetches unpinned remote content, and runs a persistent sync loop in ways users should review carefully.
LLM: suspicious (high) · VirusTotal: · 29 May 2026