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 Hmbown/Wizards-of-the-Ghosts --skill power-word-killgit clone --depth 1 https://github.com/Hmbown/Wizards-of-the-GhostsWrote 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/hmbown/wizards-of-the-ghosts/power-word-kill)<a href="https://agentmods.dev/skills/hmbown/wizards-of-the-ghosts/power-word-kill"><img src="https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/power-word-kill/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/hmbown/wizards-of-the-ghosts/power-word-kill"><img src="https://agentmods.dev/badge/skills/hmbown/wizards-of-the-ghosts/power-word-kill.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 | $0.00107 | $0.00852 |
| Opus 5 | $0.00053 | $0.00426 |
| Sonnet 5 | $0.00021 | $0.00170 |
| Haiku 4.5 | $0.00011 | $0.00085 |
Grade A, and why
power-word-kill 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 9d 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 — 70 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Power Word Kill
End a process instantly. No negotiation, no cleanup, no save state.
What This Skill Does
In D&D, Power Word Kill instantly destroys any creature below a hit-point threshold — no saving throw, no resistance, just death. The real-world version is kill -9: the unconditional termination signal. Emergency circuit breakers. Hard account terminations. The nuclear option that exists because sometimes graceful shutdown is not available and the cost of continuing is worse than the cost of data loss. Power Word Kill is not elegant. It is not kind. It is the thing you reach for when everything else has already failed. In this grimoire, Power Word Kill is treated as a hybrid spell with a shipping-now delivery profile. Canonical reference input: Power Word Kill (spell).
When To Use
- A process, service, or system must stop immediately and graceful shutdown is not available or has already failed.
- The cost of the system continuing to run exceeds the cost of abrupt termination and potential data loss.
- An emergency requires instant action — a runaway process, a security breach in progress, a cascading failure.
Prerequisites
- No extra runtime dependencies beyond Hermes Agent and the normal toolset for this session.
Procedure
- Restate the target, the success condition, and any no-touch boundaries before taking action.
- Confirm the target is correct. Power Word Kill has no undo.
- Verify that graceful alternatives (SIGTERM, drain, decommission) have been attempted or are not viable.
- Execute the hard kill: process termination, circuit breaker trip, account lock, or emergency shutdown.
- Immediately assess blast radius: what downstream systems were affected, what state was lost, what needs recovery.
- Document what happened and why the hard kill was necessary — this is your incident report seed.
- Package the result as the deliverables below, with confidence, assumptions, and unresolved risk called out explicitly.
Deliverables
- Confirmation that the target has been terminated.
- A blast-radius assessment: what was lost, what was affected, what needs recovery.
- An incident seed documenting the kill decision and its justification.
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.
- 9d ago First seen · 70 lines · 107 tokens per session scan A b46bb26df9c7
power-word-kill is a skill published in the GitHub repository Hmbown/Wizards-of-the-Ghosts (107 stars, last pushed 5mo ago), licensed CC0-1.0. It adds 107 tokens to every session and 852 once invoked, about $0.0005 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 2026-09-03.
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reproduce
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