What is langcare-prenatal?

A structured workflow for reviewing prenatal visits according to the stage of pregnancy.

Use it to review gestational age, weight, blood pressure, fetal heart rate, lab results, ultrasound history, aspirin or vitamin use, and risks such as preeclampsia.

It organizes pregnancy measurements, tests, medicines, fetal checks, and risk factors around the current trimester.

langcare-prenatal — Skill for Claude Code and Codex by langcare

Install

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.

Any agent

npx skills add langcare/langcare-mcp-fhir --skill prenatal

Clone the repo

git clone --depth 1 https://github.com/langcare/langcare-mcp-fhir

Made for: Claude Code, Codex.

Wrote 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.

README.md

[![agentmods](https://agentmods.dev/badge/skills/langcare/langcare-mcp-fhir/prenatal/github.svg)](https://agentmods.dev/skills/langcare/langcare-mcp-fhir/prenatal)

Your own site

<a href="https://agentmods.dev/skills/langcare/langcare-mcp-fhir/prenatal"><img src="https://agentmods.dev/badge/skills/langcare/langcare-mcp-fhir/prenatal/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.

Your own site · 80×15

<a href="https://agentmods.dev/skills/langcare/langcare-mcp-fhir/prenatal"><img src="https://agentmods.dev/badge/skills/langcare/langcare-mcp-fhir/prenatal.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 951 The whole file, excluding the scripts and references it only reads on demand.

Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.

Origin original No closer match found in the catalogue.

Token cost

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	$0.00071	$0.00951
Opus 5.5	$0.00028	$0.00380
Sonnet 5.5	$0.00014	$0.00190
Haiku 4.5	$0.00007	$0.00095

Measured 2mo ago against content hash 296960648745, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

langcare-prenatal 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 2mo 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.

cma/skills/specialty/prenatal/SKILL.md · 71 lines

How it starts

The opening of the file, as written. The whole thing — 71 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Prenatal Visit Workflow

When to Use This Skill

Use when a clinician needs a structured prenatal visit assessment organized by current gestational age and trimester with ACOG-aligned lab tracking and risk assessment.

Clinical Workflow

Use fhir_read to retrieve Patient demographics (maternal age -- flag if >=35 for AMA)
Use fhir_search to pull pregnancy Condition (SNOMED 77386006) and determine gestational age from onset or EDD Observation (LOINC 11778-8)
Use fhir_search to pull vital signs trend: BP (preeclampsia monitoring), weight (gain trajectory per IOM guidelines)
Use fhir_search to pull fetal Observations: fetal heart rate (LOINC 11996-6), fundal height (LOINC 11948-7)
Use fhir_search to pull prenatal laboratory results organized by trimester milestone (see references/acog-schedule.md)
Assess preeclampsia risk: BP trend, urine protein, aspirin prophylaxis status
Use fhir_search to pull active MedicationRequest: verify prenatal vitamin, aspirin if indicated, Rhogam timing
Use fhir_search to pull Procedure resources for ultrasound history
Present structured visit summary with current trimester context, risk flags, and upcoming milestones

FHIR Resources

Patient -- Maternal age
Condition -- Pregnancy diagnosis, complications (GDM, preeclampsia, preterm risk)
Observation -- Vitals (BP, weight), fetal (FHR, fundal height), labs (by trimester), EDD
MedicationRequest -- Prenatal vitamins, aspirin, Rhogam, insulin
Procedure -- Ultrasounds, amniocentesis
DiagnosticReport -- Ultrasound reports, lab panels

FHIR Query Examples

Pull Pregnancy Condition

fhir_search(resourceType="Condition", queryParams="patient=[patient-id]&code=77386006&clinical-status=active")

Pull EDD

fhir_search(resourceType="Observation", queryParams="patient=[patient-id]&code=11778-8&_sort=-date&_count=1")

Pull Fetal Heart Rate

fhir_search(resourceType="Observation", queryParams="patient=[patient-id]&code=11996-6&_sort=-date&_count=5")

Read the full file on GitHub · 71 lines

Files

What ships with it

1 file 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.

references/acog-schedule.md 4.2 KB

Changes

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.

2mo ago First seen · 71 lines · 71 tokens per session scan A 296960648745

Subscribe to this mod's changes

langcare-prenatal is a skill published in the GitHub repository langcare/langcare-mcp-fhir (71 stars, last pushed 6mo ago), licensed MIT. It adds 71 tokens to every session and 951 once invoked, about $0.0003 per session on Opus 5.5. 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.

langcare-prenatal next to 6 skills from other repositories
Mod	Type	Stars	Last push	Licence	Scan	Tokens	Works with
langcare-prenatallangcare/langcare-mcp-fhir	Skill	71	6mo ago	MIT	A	71	Claude Code, Codex
imagegenopenai/codex	Skill	133k	yesterday	Apache-2.0	A	113	Codex
playwright-climicrosoft/playwright	Skill	99k	yesterday	Apache-2.0	A	19	Claude Code
local-ai-agentsmicrosoft/ai-agents-for-beginners	Skill	79k	4d ago	MIT	A	200	Claude Code, Codex
systematic-debuggingobra/superpowers	Skill	313k	3d ago	MIT	A	21	Claude Code
next-cache-components-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	95	Claude Code
next-partial-prefetching-adoptionvercel/next.js	Skill	143k	yesterday	MIT	A	103	Claude Code