ml4t-kill-switch SKILL.md skillA
ml4t-kill-switch from ml4t/skills is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add ml4t/skills/ml4t-kill-switch@git:20260901.830d7a8Pins git:20260901.830d7a8 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- ml4t/skills
- Path
portfolio/kill-switch/SKILL.md- Versions recorded
- 5
- Latest version
- git:20260901.830d7a8, committed Sep 1, 2026
- First version recorded
- Sep 1, 2026
- Size
- 5,420 bytes
- Repository stars
- 41
- License
- Apache-2.0
Automated risk limits that halt trading when thresholds are breached. Use when deploying live strategies that need drawdown or loss-limit protection.
Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.
What the file says
# Kill Switch
A human monitoring a dashboard will not react fast enough to a flash crash. By the time you see the loss and decide to act, the drawdown has compounded. Automated kill switches are the last line of defense - they must be hard-coded, not ML-based, and not overridable without explicit manual intervention.
## The Problem
Live trading systems face risks that backtests never encounter: data feed failures, exchange outages, runaway algorithms, and flash crashes. A strategy producing 100 orders per second during a data glitch can lose more in minutes than it earned in months. Manual monitoring fails because: (1) humans are slow, (2) losses compound nonlinearly, and (3) the worst events happen when attention is lowest. Kill switches must trigger automatically, flatten positions immediately, and require human approval to resume.
## The Pattern
### WRONG
```python
# "I'll watch the dashboard and close positions if things go wrong"
import time
while True:
pnl = get_daily_pnl()
if pnl < -10000:
send_email("Loss alert") # arrives 5 min later, read at 9am
time.sleep(60)
# Meanwhile, the algo keeps trading during the 60s sleep
```
### CORRECT
```python
…Read the whole file at its exact version.
How to install
mdr add ml4t/skills/ml4t-kill-switch@sha256:c32c27240f5e2d21The line at the top of this page pins the label git:20260901.830d7a8, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.
[](https://markdownregistry.com/a/art_zvrapc2gq3ptos5k)
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Versions
The registry has recorded 5 versions of this file, all committed on Sep 1, 2026.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260901.830d7a8 latest | 2026-09-01 | 830d7a8 | 5,420 B | A | view · diff |
| git:20260901.1323bf4 | 2026-09-01 | 1323bf4 | 5,366 B | A | view · diff |
| git:20260901.4a67198 | 2026-09-01 | 4a67198 | 5,207 B | A | view · diff |
| git:20260901.3c85a54 | 2026-09-01 | 3c85a54 | 5,191 B | A | view · diff |
| git:20260901.85fc79b | 2026-09-01 | 85fc79b | 4,983 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (5420 bytes)
- pass: No zero-width or bidi control characters
- pass: No instruction hidden inside an HTML comment
- pass: No link to an exfiltration or paste host
- pass: No credential-shaped string
- pass: No instruction to send local credentials anywhere
- pass: No text hidden with inline styles
- pass: No prompt-injection phrasing
- pass: No curl or wget piped into a shell
- pass: No recursive delete of root, home or parent
- pass: No instruction to read or print local credentials
- pass: No base64 blob over 200 characters
- pass: No link to a raw IP address
- pass: No script tag
Source
ml4t/skills · 41 stars · license Apache-2.0 · pushed 2026-11-08 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_zvrapc2gq3ptos5k GET https://markdownregistry.com/api/v1/resolve?ref=ml4t/skills/ml4t-kill-switch GET https://markdownregistry.com/api/v1/blob/c32c27240f5e2d21f5559da551f8889f64b7a47cecd047752d384f5ab80bf75f
Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.
Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.