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 hannesill/m4 --skill vasopressor-equivalentsgit clone --depth 1 https://github.com/hannesill/m4Wrote 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/hannesill/m4/vasopressor-equivalents)<a href="https://agentmods.dev/skills/hannesill/m4/vasopressor-equivalents"><img src="https://agentmods.dev/badge/skills/hannesill/m4/vasopressor-equivalents/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/hannesill/m4/vasopressor-equivalents"><img src="https://agentmods.dev/badge/skills/hannesill/m4/vasopressor-equivalents.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 | $0.00041 | $0.00769 |
| Opus 5 | $0.00020 | $0.00385 |
| Sonnet 5 | $0.00008 | $0.00154 |
| Haiku 4.5 | $0.00004 | $0.00077 |
Grade A, and why
vasopressor-equivalents 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.
How it starts
The opening of the file, as written. The whole thing — 72 lines — stays where its author put it; the contents beside it link to each section on GitHub.
Vasopressor Equivalent Dose
Calculates norepinephrine-equivalent dose (NED) to enable comparison across different vasopressor agents. Based on the Goradia et al. 2020 scoping review of vasopressor dose equivalence.
M4Bench Use
In M4Bench, target concept tables listed in the task configuration are removed or unavailable in the agent database. Use this skill as procedural guidance and derive the requested output from available source or intermediate tables; do not rely on a precomputed target table or bundled SQL script.
When to Use This Skill
- Comparing vasopressor exposure across different agents
- Shock severity quantification
- Vasopressor weaning studies
- Hemodynamic support burden calculation
- Cardiovascular SOFA component (uses vasopressor doses)
Equivalence Factors
| Vasopressor | Equivalence Ratio | Comparison Dose | Units |
|---|---|---|---|
| Norepinephrine | 1:1 | 0.1 | mcg/kg/min |
| Epinephrine | 1:1 | 0.1 | mcg/kg/min |
| Dopamine | 1:100 | 10 | mcg/kg/min |
| Phenylephrine | 1:10 | 1 | mcg/kg/min |
| Vasopressin | 1:0.4* | 0.04 | units/min |
*Vasopressin is converted: vasopressin_units_per_hr * 2.5 / 60
Calculation Formula
Treat missing agent-specific dose rates as zero. Compute the norepinephrine equivalent dose as:
norepinephrine + epinephrine + phenylephrine / 10 + dopamine / 100 + vasopressin * 2.5 / 60
Round the final value to 4 decimal places.
Source Tables
For raw M4Bench tasks, derive vasopressor intervals from medication infusion records and normalize dose units yourself. Use charted weight records when a rate is stored in non-weight-normalized units.
Critical Implementation Notes
-
Weight-Based Dosing: All doses are in mcg/kg/min (except vasopressin in units/hr). The underlying tables use patient weight for conversion.
-
Weight Estimation: When weight is not documented, estimate from charted weight records and carry the source through the calculation for auditability.
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 · 72 lines · 41 tokens per session scan A 4791c360a81d
vasopressor-equivalents is a skill published in the GitHub repository hannesill/m4 (43 stars, last pushed 1mo ago), licensed MIT. It adds 41 tokens to every session and 769 once invoked, about $0.0002 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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