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BC cron-health-cron

Create portable OpenClaw cron health checks with deterministic scripts, config, validation, and reports.

ClawHub Agent Skills author: Glucksberg v1.0.8 MIT-0 7 files body ≈ 2 803 tokens Open the sourceclawhub.ai↗ analyzed 2 d ago

Create portable OpenClaw cron health checks with deterministic scripts, config, validation, and reports.

As a process C 62/100 · Has gaps — weak spots: result and completion, inputs and preconditions, failures and branches

AnalyzerInfrastructureData and analyticstype 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
81/100
safety, quality, tests
Safety 60%
74
Quality 40%
92
Run on models
none yet
Process rating
C
62/100
Has gaps
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

What is at stake

Medium-severity findings: the skill is probably honest, but read what alarmed the scanner.

Dangerous commands medium severity

Below is the worst case for this category. The finding here is medium: the guard saw a sign, not a proof.

If you install

The skill contains commands that delete files, rewrite disks or execute code fetched from the network. The agent may run them without asking if it believes the instructions require it.

For the author

Replace destructive commands with safe equivalents that ask for confirmation, scope them to one folder, and stop piping curl into a shell: pin a version and a checksum.

How to improve

    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 · 10

    ✓ No critical or high findings

    Medium and low: 10
    • medium Dangerous commands cmd-persistence references/setup-manual.md:37
      Persistence mechanism (cron / launchd / scheduled task / autorun registry) (detector / deny-list definition)
      - `crontab_files`: files that contain crontab syntax, such as `/etc/crontab` and `/etc/cron.d/*`
      detector
    • medium Dangerous commands cmd-persistence references/setup-manual.md:38
      Persistence mechanism (cron / launchd / scheduled task / autorun registry) (quoted — discussed, not commanded)
      - `run_parts_dirs`: directories containing executable scripts, such as `/etc/cron.daily`
      quoted
    • medium Dangerous commands cmd-persistence references/setup-manual.md:40
      Persistence mechanism (cron / launchd / scheduled task / autorun registry) (quoted — discussed, not commanded)
      Never parse scripts inside `/etc/cron.daily` or similar directories as if their contents were crontab lines.
      quoted
    • medium Dangerous commands cmd-persistence templates/cron-health-config.json:55
      Persistence mechanism (cron / launchd / scheduled task / autorun registry) (string literal in code, not executed)
      {"path": "/etc/cron.hourly", "frequency": "hourly", "expected_log_freshness_minutes": 180},
      code literal
    • low Dangerous commands cmd-cron-mention SKILL.md:4
      Mentions editing / listing crontab (detector / deny-list definition)
      metadata: { "openclaw": { "requires": { "bins": ["python3", "openclaw", "crontab", "systemctl"] }, "permissions": { "filesystem": ["read configured cron files, scheduler metadata files, registry notes
      detector
    • low Dangerous commands cmd-cron-mention SKILL.md:55
      Mentions editing / listing crontab (detector / deny-list definition)
      - Command probes: only the fixed argv forms enforced by the bundled script: `openclaw cron list --json`, `crontab -l`, `systemctl --failed --no-pager --plain`, `systemctl list-timers --all --no-pager
      detector
    • low Risky intent intent-offensive-security SKILL.md:88
      Offensive-security / dual-use content (legitimate for authorised testing; review intended use)
      - Keep the health-check run non-mutating: no scheduler edits, service edits, registry writes, callback writes, network calls, shell expansion, privilege escalation, or arbitrary command strings.
    • low Dangerous commands cmd-persistence templates/cron-health-config.json:53
      Persistence mechanism (cron / launchd / scheduled task / autorun registry) (detector / deny-list definition; string literal in code, not executed)
      "crontab_files": ["/etc/crontab", "/etc/cron.d/*"],
      detectorcode literal
    • low Dangerous commands cmd-persistence templates/cron-health-config.json:56
      Persistence mechanism (cron / launchd / scheduled task / autorun registry) (detector / deny-list definition; string literal in code, not executed)
      {"path": "/etc/cron.daily", "frequency": "daily", "expected_log_freshness_minutes": 1800},
      detectorcode literal
    • low Dangerous commands cmd-persistence templates/cron-health-config.json:57
      Persistence mechanism (cron / launchd / scheduled task / autorun registry) (detector / deny-list definition; string literal in code, not executed)
      {"path": "/etc/cron.weekly", "frequency": "weekly", "expected_log_freshness_minutes": 11520},
      detectorcode literal

    Files scanned: 7. Evidence is masked. Grey chips explain why severity was lowered.

    Against the Agent Skills spec

    ✓ No remarks against the Agent Skills spec

    Process rating: all ten parameters 62/100

    • 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. 8 mutating operations with no state check
    • 100Tools and files. Tools declared in frontmatter
    • 100Steps. 86 steps
    • 100When it triggers. States when to use and when not to
    • 100Consistency. Name and required fields are in place
    • 100Execution cost. Instruction body is 2803 tokens
    • 100Progress reporting. Reports progress
    • medium Safety rules and hard prohibitions inside a skill: they belong in the system prompt, here they protect nothing
    • low 13 top-level sections: this looks like several domains in one skill

    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
    • +3Description length 104: 120–800 characters recommended
    • +3Output format is not stated: the model decides each time
    • +1No license
    • +2Single-language instructions
    • +4Description says when NOT to use the skill
    • +4Structure: 14 headings
    • +3Step-by-step instructions: 86 items
    • +4Has examples (1 code blocks)
    • +4Reference files are cited in the instructions (3 of 3)
    • +3All 1 scripts are documented

    Quality base 70; lint remarks subtract, signals add up to 100. Result: 92.

    External checks

    ClawHub: clean
    This skill is a disclosed local OpenClaw cron-health checker with constrained read-only diagnostics, though it has one optional validation bug users should fix before relying on it.
    LLM: benign (high) · VirusTotal: · 5 Jun 2026