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 humanerd-drew/opencode-drewgent --skill cron-script-fastpathgit clone --depth 1 https://github.com/humanerd-drew/opencode-drewgentWrote 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/humanerd-drew/opencode-drewgent/cron-script-fastpath)<a href="https://agentmods.dev/skills/humanerd-drew/opencode-drewgent/cron-script-fastpath"><img src="https://agentmods.dev/badge/skills/humanerd-drew/opencode-drewgent/cron-script-fastpath/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/humanerd-drew/opencode-drewgent/cron-script-fastpath"><img src="https://agentmods.dev/badge/skills/humanerd-drew/opencode-drewgent/cron-script-fastpath.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 | $0.00046 | $0.05101 |
| Opus 5.5 | $0.00018 | $0.02040 |
| Sonnet 5.5 | $0.00009 | $0.01020 |
| Haiku 4.5 | $0.00005 | $0.00510 |
Grade A, and why
cron-script-fastpath scanned grade A with 2 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 1mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Makes network callslowCapability
Not a fault in itself. Listed so you know the mod talks to something, and to what.
curl -s "${BASE_URL}/models" -H "Authorization: Bearer ${API_KEY}" \ Runs shell commandslowCapability
Expected in a hook, worth knowing in a rule or an instructions file.
directly via `subprocess.run()` and skips the LLM entirely. How it starts
The opening of the file, as written. The whole thing — 468 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Cron Script Fast-Path — LLM Bypass for Simple Shell Jobs
{{AGENT_NAME}} cron jobs run their prompt through AIAgent (LLM) by default.
For jobs whose prompt is just a shell command ("Run: python3 xxx.py"),
this is wasteful — LLM parses the prompt, runs the script, and forwards
stdout to delivery. Each run costs a full LLM round-trip.
This skill documents a surgical patch that adds a script: field
fast-path: when a job has script: "path", scheduler runs the script
directly via subprocess.run() and skips the LLM entirely.
1. When to Use
Apply when a cron job's prompt is structurally a single shell command:
- "Run: python3 ~/.{{AGENT_NAME_LOWER}}/scripts/foo.py"
- "Run: bash ~/.{{AGENT_NAME_LOWER}}/scripts/bar.sh"
- Any job where the prompt's only value-add over
subprocess.runis "Report: ..." or "If silent, [SILENT]" — both of which the script already produces in stdout.
Two independent motivations:
| Motivation | Why | When it bites hardest |
|---|---|---|
| Cost | LLM round-trip per job tick — adds up on hourly/daily cadence with a 1M-context model. | High-frequency jobs (every N minutes). |
| Reliability / timeout avoidance | LLM-based cron jobs inherit the main model. If the provider is slow to start streaming or stalls mid-response, the cron scheduler's 600s idle timeout fires — job fails with TimeoutError: ... idle for 603s (limit 600s) — last activity: waiting for provider response (streaming). The script itself would finish in <30s, but the LLM wrapper around it times out on a slow API call. |
Any job where the default model can lag. The 10-min wall is tight — even a 4-min script + 5-min LLM stall = timeout. |
Either motivation alone justifies converting. Reliability is often the stronger reason — a failing cron job is worse than a slightly more expensive one.
Do NOT use for jobs that need:
- LLM reasoning (SEO article scoring, Trend analysis, site-audit synthesis)
- Multi-step coordination with side tools (n8n, MCP, etc.)
- Reading multiple files + writing a human-friendly report
What ships with it
3 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.
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.
- 1mo ago First seen · 468 lines · 46 tokens per session scan A 290aa85c158b
cron-script-fastpath is a skill published in the GitHub repository humanerd-drew/opencode-drewgent (3 stars, last pushed 3mo ago), licensed MIT. It adds 46 tokens to every session and 5,101 once invoked, about $0.0002 per session on Opus 5.5. A static security scan graded it A with 2 findings (makes network calls, runs shell commands). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.
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