Borrowing it
Nothing to install: this file belongs to monarch-initiative/dismech. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.
curl -O https://raw.githubusercontent.com/monarch-initiative/dismech/main/.claude/skills/create-definitions-from-ohdsi/SKILL.mdgit clone --depth 1 https://github.com/monarch-initiative/dismechWrote 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/monarch-initiative/dismech/create-definitions-from-ohdsi)<a href="https://agentmods.dev/skills/monarch-initiative/dismech/create-definitions-from-ohdsi"><img src="https://agentmods.dev/badge/skills/monarch-initiative/dismech/create-definitions-from-ohdsi/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/monarch-initiative/dismech/create-definitions-from-ohdsi"><img src="https://agentmods.dev/badge/skills/monarch-initiative/dismech/create-definitions-from-ohdsi.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 | $0.00068 | $0.00397 |
| Opus 5 | $0.00034 | $0.00198 |
| Sonnet 5 | $0.00014 | $0.00079 |
| Haiku 4.5 | $0.00007 | $0.00040 |
Grade A, and why
create-definitions-from-ohdsi 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.
What it actually says
Create Definitions From OHDSI
Use this skill to convert OHDSI/ATLAS cohort definitions into dismech definitions blocks and to map FHIR/CQL logic into the same structure.
Quick start
- Export an ATLAS/WebAPI cohort definition JSON.
- Generate a YAML fragment:
uv run python .claude/skills/create-definitions-from-ohdsi/scripts/ohdsi_cohort_to_definition.py /path/to/cohort.json --wrap
- Paste the fragment into the target disorder file under
definitions. - Normalize to dismech norms (add evidence snippets, scope, criteria set names, and any available term objects).
- Validate:
just validate kb/disorders/<Disease>.yaml
Workflow guardrails
- Keep logic concise: express cohort entry, inclusion rules, and exit criteria in
criteria_sets. - Use
minimum_requiredfor numeric logic; put temporal logic indescription. - Add evidence snippets from abstracts when the algorithm is derived from a publication.
- Only add
termobjects when the CURIE is in a configured prefix (ICD10CM, NCIT, HP, etc.).
References
- Mapping guide:
references/model-mapping.md(FHIR/OHDSI/CQL to dismech)
Scripts
scripts/ohdsi_cohort_to_definition.py: Convert ATLAS/WebAPI cohort JSON to a dismech definition fragment.- Use
--wrapto emit a top-leveldefinitionskey.
- Use
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.
- 10d ago First seen · 42 lines · 68 tokens per session scan A e96d48620493
create-definitions-from-ohdsi is a skill published in the GitHub repository monarch-initiative/dismech (60 stars, last pushed today), licensed BSD-3-Clause. It adds 68 tokens to every session and 397 once invoked, about $0.0003 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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