derive-quality-rules

derive-quality-rules is a command for Claude Code from sigistry/marketplace. It costs 14 tokens per session (226 once invoked), scanned A, original, MIT.

A command that proposes data-quality rules from examples in a FHIR project. FHIR is a healthcare data standard, and the proposed rules are conventions for review rather than clinical truth.

In plain words
What is it for?
Use it to inspect profiles, identifiers, references, extensions, bundles, and completeness, then suggest reviewers and suitable CI or manual checks.
Why use it?
It helps turn repeated patterns in local records into visible checks without silently treating one example as a medical or business requirement.

Command for Claude Code

Written for Claude Code: argument-hint in frontmatter.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the records plugin — 3 skills, 5 commands, 1 agent shipped together

Good fit Use it to inspect profiles, identifiers, references, extensions, bundles, and completeness, then suggest reviewers and suitable CI or manual checks.

Compare 6 commands from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add sigistry/marketplace
Claude Code
/plugin install records

Made for: Claude Code.

Or install records, the plugin that ships this one along with the rest of its 3 skills, 5 commands, 1 agent.

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.

agentmods badge for derive-quality-rules

README.md
[![agentmods](https://agentmods.dev/badge/commands/sigistry/marketplace/derive-quality-rules.svg)](https://agentmods.dev/commands/sigistry/marketplace/derive-quality-rules)
Your own site
<a href="https://agentmods.dev/commands/sigistry/marketplace/derive-quality-rules"><img src="https://agentmods.dev/badge/commands/sigistry/marketplace/derive-quality-rules.svg" alt="Measured on agentmods" height="20"></a>
Per session 14 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 226 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.

ModelPer sessionOnce invoked
Fable 5.1 $0.00014 $0.00226
Opus 5 $0.00007 $0.00113
Sonnet 5 $0.00003 $0.00045
Haiku 4.5 $0.00001 $0.00023

Measured 5d ago against content hash ba69859ddba4, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

derive-quality-rules 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 5d 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.

plugins/records/commands/derive-quality-rules.md · 27 lines

What it actually says

Derive FHIR Quality Rules

Use the fhir-ci-quality skill and read skills/fhir-validation/references/quality-rules.md.

Target: $ARGUMENTS or directories reported by the detector.

When a local directory is available, prefer:

node "${CLAUDE_PLUGIN_ROOT}/skills/fhir-validation/scripts/derive-quality-rules.mjs" "$ARGUMENTS"

Derive proposed, reviewable quality rules from local evidence:

  1. Sample resources by type, profile, and directory.
  2. Identify repeated local conventions for meta.profile, identifiers, references, extensions, Bundle shape, and completeness.
  3. Mark every rule as proposed policy, not authoritative clinical truth.
  4. Identify reviewer type: technical, domain, terminology, privacy, or security.
  5. Suggest CI fit: Records CLI, Records API, existing script, or manual review.

Do not infer clinical coding policy, status values, or business rules from one example.

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.

  1. 5d ago First seen · 27 lines · 14 tokens per session scan A ba69859ddba4

Subscribe to this mod's changes

derive-quality-rules is a command published in the GitHub repository sigistry/marketplace (3 stars, last pushed 4d ago), licensed MIT. It adds 14 tokens to every session and 226 once invoked, about $0.0001 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 2026-09-03.

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