Getting it into your agent
One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.
npx skills add berkcangumusisik/claude-code-practices --skill cron-jobgit clone --depth 1 https://github.com/berkcangumusisik/claude-code-practicesWrote this? Show the measurements
A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.
[](https://agentmods.dev/skills/berkcangumusisik/claude-code-practices/cron-job)<a href="https://agentmods.dev/skills/berkcangumusisik/claude-code-practices/cron-job"><img src="https://agentmods.dev/badge/skills/berkcangumusisik/claude-code-practices/cron-job/github.svg" alt="Measured on agentmods" height="20"></a>Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.
<a href="https://agentmods.dev/skills/berkcangumusisik/claude-code-practices/cron-job"><img src="https://agentmods.dev/badge/skills/berkcangumusisik/claude-code-practices/cron-job.svg" alt="Reviewed on agentmods" width="80" height="20"></a>What it costs to keep this loaded
Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.
| Model | Per session | Once invoked |
|---|---|---|
| Fable 5.1 | $0.00017 | $0.00385 |
| Opus 5 | $0.00009 | $0.00192 |
| Sonnet 5 | $0.00003 | $0.00077 |
| Haiku 4.5 | $0.00002 | $0.00038 |
Grade A, and why
cron-job scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 10d ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
Create Cron Job
Job: $1
Schedule: $2 (cron expression, e.g., 0 * * * * = every hour)
- Detect scheduler:
cat package.json | grep -E '"node-cron"|"cron"|"@nestjs/schedule"|"bullmq"|"pg-boss"'
- Generate the job:
import cron from 'node-cron'
import { logger } from '@/lib/logger'
const JOB_NAME = '$1'
cron.schedule('$2', async () => {
const startTime = Date.now()
logger.info({ job: JOB_NAME }, 'Starting')
// Distributed lock (prevent concurrent runs)
const lock = await acquireLock(JOB_NAME, ttlSeconds: 300)
if (!lock) {
logger.warn({ job: JOB_NAME }, 'Already running, skipping')
return
}
try {
await runJob()
logger.info({ job: JOB_NAME, duration: Date.now() - startTime }, 'Completed')
} catch (error) {
logger.error({ job: JOB_NAME, error }, 'Failed')
// Alert if needed
} finally {
await releaseLock(JOB_NAME)
}
})
-
Include:
- Distributed locking (Redis or DB-based) to prevent concurrent execution
- Structured logging with duration
- Alert on failure (if project has alerting)
- Graceful shutdown handling
- Manual trigger endpoint for testing
-
Add to job registry so all jobs are visible in one place.
What this file has done since we first saw it
Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.
- 10d ago First seen · 58 lines · 17 tokens per session scan A f49facf32ee6
cron-job is a skill published in the GitHub repository berkcangumusisik/claude-code-practices (10 stars, last pushed 4mo ago), licensed MIT. It adds 17 tokens to every session and 385 once invoked, about $0.0001 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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