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.
git clone --depth 1 https://github.com/runwhen-contrib/runwhen-platform-mcpWrote 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/rules/runwhen-contrib/runwhen-platform-mcp/runwhen-task-contract)<a href="https://agentmods.dev/rules/runwhen-contrib/runwhen-platform-mcp/runwhen-task-contract"><img src="https://agentmods.dev/badge/rules/runwhen-contrib/runwhen-platform-mcp/runwhen-task-contract/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/rules/runwhen-contrib/runwhen-platform-mcp/runwhen-task-contract"><img src="https://agentmods.dev/badge/rules/runwhen-contrib/runwhen-platform-mcp/runwhen-task-contract.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 | $0.00283 | $0.00283 |
| Opus 5.5 | $0.00113 | $0.00113 |
| Sonnet 5.5 | $0.00057 | $0.00057 |
| Haiku 4.5 | $0.00028 | $0.00028 |
Grade A, and why
runwhen-task-contract scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 2mo ago.
A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.
Nothing flagged
None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.
What it actually says
runwhen-task-contract:
- Before writing any RunWhen task or script, call
get_workspace_contextto load the project's RUNWHEN.md rules. - Python tasks must define a top-level
main()that returnsList[Dict]with keys:issue title,issue description,issue severity(1-4),issue next steps. - Python SLIs must define
main()returning a float between 0 and 1. - Bash tasks must define
main()and write issue JSON to file descriptor 3 (>&3). - Bash SLIs must define
main()and write a float to file descriptor 3. - Never call
main()directly or useif __name__ == "__main__"— the runner invokes it. - Secret vars are injected as env vars pointing to file paths (e.g.
kubeconfigis a path, setKUBECONFIG=$kubeconfig). - Use
validate_scriptbeforerun_scriptto catch contract violations early. - When committing with
commit_slx, always set theaccesstag (read-writeorread-only) anddatatag (logs-bulk,config, orlogs-stacktrace).
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.
- 2mo ago First seen · 17 lines · 283 tokens per session scan A fa1eb05783e0
runwhen-task-contract is a cursor rule published in the GitHub repository runwhen-contrib/runwhen-platform-mcp (1 stars, last pushed 2d ago), licensed Apache-2.0. It adds 283 tokens to every session, about $0.0011 per session on Opus 5.5. 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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