fhir-upstream-proxy SKILL.md skillA
fhir-upstream-proxy from aks129/healthclawguardrails is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add aks129/healthclawguardrails/fhir-upstream-proxy@git:20260414.cf87ffdPins git:20260414.cf87ffd in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- aks129/healthclawguardrails
- Path
skills/fhir-upstream-proxy/SKILL.md- Versions recorded
- 3
- Latest version
- git:20260414.cf87ffd, committed Apr 14, 2026
- First version recorded
- Feb 22, 2026
- Size
- 4,094 bytes
- Repository stars
- 31
- License
- MIT
Connect to real FHIR servers through the MCP guardrail proxy. Use when: (1) Connecting to HAPI FHIR, SMART Health IT, or Epic sandbox servers, (2) Proxying AI agent requests to production EHR systems with guardrails, (3) Ensuring upstream server URLs never leak to clients, (4) Understanding how redaction, audit, and step-up auth apply to upstream data.
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
# FHIR Upstream Server Proxy
Connect to real FHIR servers while keeping the full MCP guardrail stack active.
```
Client -> MCP Server -> Flask (guardrails) -> Upstream FHIR Server
|
redaction, audit, step-up,
tenant isolation, disclaimers,
URL rewriting
```
## When to Use This Skill
- You need to connect an AI agent to a real FHIR server (HAPI, SMART, Epic)
- You want automatic PHI redaction on upstream server responses
- You need audit trails for agent access to production clinical data
- You want URL rewriting so upstream server details never leak to clients
## Configuration
Set the `FHIR_UPSTREAM_URL` environment variable to enable proxy mode:
```bash
# HAPI FHIR R4 (open, no auth)
FHIR_UPSTREAM_URL=https://hapi.fhir.org/baseR4 python main.py
# SMART Health IT (open, no auth)
FHIR_UPSTREAM_URL=https://r4.smarthealthit.org python main.py
# HAPI FHIR R5 (open, no auth)
FHIR_UPSTREAM_URL=https://hapi.fhir.org/baseR5 python main.py
# Local HAPI instance
FHIR_UPSTREAM_URL=http://localhost:8080/fhir python main.py
# Docker Compose with upstream
…Read the whole file at its exact version.
How to install
mdr add aks129/healthclawguardrails/fhir-upstream-proxy@sha256:b5a5fd54027801bbThe line at the top of this page pins the label git:20260414.cf87ffd, 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_3han6zx4ryfw3psw)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 3 versions of this file, between Feb 22, 2026 and Apr 14, 2026, about one every 25 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260414.cf87ffd latest | 2026-04-14 | cf87ffd | 4,094 B | A | view · diff |
| git:20260329.38d7dda | 2026-03-29 | 38d7dda | 4,125 B | A | view · diff |
| git:20260222.10535b9 | 2026-02-22 | 10535b9 | 4,123 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 (4094 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
aks129/healthclawguardrails · 31 stars · license MIT · pushed 2026-10-20 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_3han6zx4ryfw3psw GET https://markdownregistry.com/api/v1/resolve?ref=aks129/healthclawguardrails/fhir-upstream-proxy GET https://markdownregistry.com/api/v1/blob/b5a5fd54027801bb21384fd18ade1d9890b4bca5760a25ad560986a29e5ebcd5
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.