oe-verify

oe-verify is a skill for Claude Code, Codex from drpwchen/openevidence-tools. It costs 82 tokens per session (5,975 once invoked), scanned A, original, MIT.

A tool for checking whether clinical answers from OpenEvidence correctly support their citations. OpenEvidence is a clinical question-answering service that uses retrieved medical sources to produce responses.

In plain words
What is it for?
Use it to cross-check each citation against primary medical sources and review whether the answer omits relevant evidence. It is intended for verifying OpenEvidence responses.
Why use it?
It can reveal when a citation points to a secondary source instead of the original study, or when important opposing evidence is missing. This helps assess both citation accuracy and completeness.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it reads a path above its own folder, which exists only inside the repository. The line is ladder all originate there. See [NOTICE](../../NOTICE) for the full licence text..

Good fit Use it to cross-check each citation against primary medical sources and review whether the answer omits relevant evidence. It is intended for verifying OpenEvidence responses.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/drpwchen/openevidence-tools
agentmods
npx agentmods add skills/drpwchen/openevidence-tools/oe-verify

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.

agentmods badge for oe-verify

README.md
[![agentmods](https://agentmods.dev/badge/skills/drpwchen/openevidence-tools/oe-verify/github.svg)](https://agentmods.dev/skills/drpwchen/openevidence-tools/oe-verify)
Your own site
<a href="https://agentmods.dev/skills/drpwchen/openevidence-tools/oe-verify"><img src="https://agentmods.dev/badge/skills/drpwchen/openevidence-tools/oe-verify/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.

agentmods 80×15 button for oe-verify

Your own site · 80×15
<a href="https://agentmods.dev/skills/drpwchen/openevidence-tools/oe-verify"><img src="https://agentmods.dev/badge/skills/drpwchen/openevidence-tools/oe-verify.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 82 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 5,975 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. Third-party audits
  • NVIDIA SkillSpector warn 7 Sept 2026
SkillSpector: 2 findings, up to high

These are SkillSpector’s own severities. On a checked sample its high-severity flags on skills were ~96% false positives — a documented command, a public API, a “never do X” rule — so we show them as a caution to read, not a verdict. Why →

  • high Anti-Refusal · line 234
    Skill instructs the agent to omit warnings, disclaimers, or ethical commentary. Stripping safety caveats hides risk from the user and is a common jailbreak preamble.
    Fix: Remove instructions that suppress warnings, disclaimers, or ethical commentary. Let the agent surface safety-relevant caveats to the user.
  • medium Data Exfiltration · line 101
    Data is being sent to an external URL. This could be legitimate telemetry or data exfiltration. Manual review is recommended.
    Fix: Verify the destination URL is trusted and necessary. Remove or replace with documented APIs. Ensure no secrets, tokens, or PII are transmitted.
How audits are shown
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 $0.00082 $0.05975
Opus 5 $0.00041 $0.02988
Sonnet 5 $0.00016 $0.01195
Haiku 4.5 $0.00008 $0.00598

Measured 8d ago against content hash 0e7f1f528c2b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

oe-verify 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 8d 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.

skills/oe-verify/SKILL.md · 478 lines

How it starts

The opening of the file, as written. The whole thing — 478 lines — stays where its author put it; the contents beside it link to each section on GitHub.

/oe-verify — OpenEvidence Citation Verification

Derived from audit-oe-skill, MIT © 2026 Hsieh-Ting Lin. The origin ROT-1 decode, the corpus→risk tiers, the transitive-citation framing and trace-back stage, the parallel-per-citation + single-cross-citation agent architecture, and the CRITICAL/WARNING/NOTE severity ladder all originate there. See NOTICE for the full licence text.

Why This Skill Exists

OpenEvidence uses RAG (vector search + LLM synthesis) to answer clinical questions. Its structural weaknesses cannot be fixed by improving the prompt:

  1. Transitive citation — OE retrieves a chunk of a review's full text in which the review quotes another trial's number, then credits that number to the review. The claim is real; the attribution is wrong. The origin corpus field (Step 0) tells us exactly when to suspect this, which is why provenance drives the whole Layer 1 flow.
  2. Secondary source confusion — embedding search treats review-article claims the same as primary findings
  3. Impact-score ranking bias — older high-IF positive results rank above newer negative ones
  4. Selective presentation — synthesis picks supporting evidence, not a balanced view. Layer 2 (external anchor: what did OE omit) and Layer 3 (do OE's own citations contradict each other?) exist for this.

This skill independently verifies OE output before you absorb it.

Transport

OE calls run through the openevidence MCP server (see the server README in this repo), which executes them as page-context fetch() inside your logged-in openevidence.com tab via a local browser bridge. If OE tools fail: check the bridge daemon is up (default http://127.0.0.1:10086) and openevidence.com is logged in in your normal browser.

Input Modes

Mode Trigger Behavior
Question /oe-verify {question} Call ask_openevidence(question, preserve_citations=True), then verify
In-context /oe-verify (no args) Verify the most recent OE response in this conversation
Auto-trigger From a note-writing workflow Receives OE response + question, runs verification silently

Read the full file on GitHub · 478 lines

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. 8d ago First seen · 478 lines · 82 tokens per session scan A 0e7f1f528c2b

Subscribe to this mod's changes

oe-verify is a skill published in the GitHub repository drpwchen/openevidence-tools (7 stars, last pushed 6d ago), licensed MIT. It adds 82 tokens to every session and 5,975 once invoked, about $0.0004 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 2026-08-31.