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 runxhq/runx --skill chief-of-staffgit clone --depth 1 https://github.com/runxhq/runxWrote 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/runxhq/runx/chief-of-staff)<a href="https://agentmods.dev/skills/runxhq/runx/chief-of-staff"><img src="https://agentmods.dev/badge/skills/runxhq/runx/chief-of-staff/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/runxhq/runx/chief-of-staff"><img src="https://agentmods.dev/badge/skills/runxhq/runx/chief-of-staff.svg" alt="Reviewed on agentmods" width="80" height="20"></a>- NVIDIA SkillSpector pass
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 | $0.00019 | $0.00871 |
| Opus 5 | $0.00010 | $0.00436 |
| Sonnet 5 | $0.00004 | $0.00174 |
| Haiku 4.5 | $0.00002 | $0.00087 |
Grade A, and why
chief-of-staff 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 12d 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.
How it starts
The opening of the file, as written. The whole thing — 93 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Chief of Staff
Turn a bounded view of mail and calendar context into an operator-ready action packet: what deserves attention, which replies are worth drafting, where time can be offered, and which risks need a human decision. The point is not to summarize an inbox. It is to reduce it to the few decisions and follow-ups that matter.
This skill works over context that another product or provider reader has already hydrated and redacted. It does not fetch a mailbox, send a reply, accept an invitation, or change a calendar. Those are separate provider actions with their own authority and approval.
When to use it
Use chief-of-staff for an executive or operator review pass over a known set of
threads, events, and availability. It is useful when priorities must remain
traceable to source items and when proposed actions need to be handed to a human
or a later provider skill.
Do not use it as an always-on mailbox agent, as permission to answer on
someone's behalf, or to infer missing conversation context. If the supplied
snippets cannot support a safe recommendation, the correct result is
needs_context.
How it works
- Supply redacted threads, events, and availability with stable source digests and observation times.
- Deterministic admission rejects duplicate, missing, malformed, or stale evidence and indexes the exact source references available to the review.
- The synthesis ranks actions, drafts unsent replies, proposes only supplied available times, and surfaces risks instead of retelling every item.
- Finalization rejects invented thread or event references and any proposed time outside the supplied availability snapshot.
- Legal, billing, HR, security, and account-access matters always retain a manual-review flag; model judgment cannot downgrade that boundary.
The packet labels upstream digests as caller-supplied provenance. A digest proves stable binding, not that Runx fetched or independently verified the provider record.
Inputs and result
What ships with it
2 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.
- 12d ago First seen · 93 lines · 19 tokens per session scan A 9fadb6380a76
chief-of-staff is a skill published in the GitHub repository runxhq/runx (87 stars, last pushed 3d ago), licensed Apache-2.0. It adds 19 tokens to every session and 871 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 2026-08-30.
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