What is cross-reference-linking?

A research helper for connecting current findings with earlier studies, related publications, medical images, patient records, or pathology results. Pathology is the study of disease through laboratory samples.

Use it for prior-study comparisons, literature searches, follow-up changes over time, comparisons across imaging types, and links between imaging and clinical or pathology data.

It helps provide historical and clinical context, so current findings can be compared with what came before or with other evidence.

cross-reference-linking — Skill for Claude Code and Codex by aizech

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 aizech/clinical-skills --skill cross-reference-linking

Clone the repo

git clone --depth 1 https://github.com/aizech/clinical-skills

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/aizech/clinical-skills/cross-reference-linking/github.svg)](https://agentmods.dev/skills/aizech/clinical-skills/cross-reference-linking)

Your own site

<a href="https://agentmods.dev/skills/aizech/clinical-skills/cross-reference-linking"><img src="https://agentmods.dev/badge/skills/aizech/clinical-skills/cross-reference-linking/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/aizech/clinical-skills/cross-reference-linking"><img src="https://agentmods.dev/badge/skills/aizech/clinical-skills/cross-reference-linking.svg" alt="Reviewed on agentmods" width="80" height="20"></a>

Per session 51 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.

When invoked 549 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	$0.00051	$0.00549
Opus 5.5	$0.00020	$0.00220
Sonnet 5.5	$0.00010	$0.00110
Haiku 4.5	$0.00005	$0.00055

Measured 1mo ago against content hash 7897de7ee58a, method: parsed. Prices are Anthropic first-party input rates as of 2026-10-07, from the pricing page.

Security

Grade A, and why

cross-reference-linking 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 1mo 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.

.agents/skills/cross-reference-linking/SKILL.md · 86 lines

How it starts

The opening of the file, as written. The whole thing — 86 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Cross-Reference Linking Skill

Triggers

"compare to priors"
"find prior studies"
"correlate with"
"longitudinal comparison"
"followup from"
"related findings"
"pathology correlation"

Parameters

reference_type (required): Type of cross-reference needed
- prior_studies - Historical imaging comparison
- literature - Relevant published cases or studies
- followup - Sequential study comparison
- multimodality - Different modality correlation
- pathology - Radiology-pathology correlation
- clinical - EHR/clinical data correlation
finding_summary (required): Current finding to cross-reference
patient_id (optional): Patient identifier for prior search
date_range (optional): Time window for prior search

Cross-Reference Types

Prior Study Comparison

Modality, date, and key findings of historical studies
Size/dimension comparisons for measurable findings
Density/signal intensity comparisons
Change assessment (stable, improved, progressed)

Literature Correlation

Similar published cases
Expected imaging appearances
Atypical presentations
Prognostic implications

Pathology Correlation

Common pathologies for imaging appearance
Staging implications (TNM, etc.)
Molecular markers and imaging correlates
Treatment response patterns

Clinical Correlation

Lab values relevant to imaging findings
Symptoms and clinical history
Treatment history and timeline

Output Format

Returns structured JSON with:

Prior finding references with dates
Comparison metrics (size, characteristics)
Change assessment with confidence
Recommendations for followup
Related literature citations

Usage Examples

reference_type: prior_studies
finding_summary: 2.5 cm lung nodule right upper lobe
patient_id: MRN12345

reference_type: pathology
finding_summary: irregular spiculated mass left lower lobe

reference_type: followup
finding_summary: 1.2 cm thyroid nodule compared to 6 months prior

Read the full file on GitHub · 86 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.

evals/evals.json 2.2 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.

1mo ago First seen · 86 lines · 51 tokens per session scan A 7897de7ee58a

Subscribe to this mod's changes

cross-reference-linking is a skill published in the GitHub repository aizech/clinical-skills (6 stars, last pushed 4mo ago), licensed MIT. It adds 51 tokens to every session and 549 once invoked, about $0.0002 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 2026-08-31.

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cross-reference-linking