dataverse-sync

dataverse-sync is a skill for Claude Code, Codex from letitbk/claude-academic-setup. It costs 31 tokens per session (1,037 once invoked), scanned A, original, MIT.

A file-sync helper for Harvard Dataverse, an online archive for research data. It uses Dataverse's API to manage files in a dataset.

In plain words
What is it for?
Use it to list dataset files, upload new files, replace existing files, or delete files in a Harvard Dataverse dataset. Requests require a Dataverse API token.
Why use it?
It removes the need to manually upload, replace, or delete dataset files through the archive's website. It also provides a way to work with dataset metadata and file details from a local repository.

Skill for Claude CodeCodex

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.

agentmods
npx agentmods add skills/letitbk/claude-academic-setup/dataverse-sync
Any agent
npx skills add letitbk/claude-academic-setup --skill dataverse-sync
Clone the repo
git clone --depth 1 https://github.com/letitbk/claude-academic-setup

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 dataverse-sync

README.md
[![agentmods](https://agentmods.dev/badge/skills/letitbk/claude-academic-setup/dataverse-sync.svg)](https://agentmods.dev/skills/letitbk/claude-academic-setup/dataverse-sync)
Your own site
<a href="https://agentmods.dev/skills/letitbk/claude-academic-setup/dataverse-sync"><img src="https://agentmods.dev/badge/skills/letitbk/claude-academic-setup/dataverse-sync.svg" alt="Measured on agentmods" height="20"></a>
Per session 31 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,037 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. Scan, not verified.
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 $0.00031 $0.01037
Opus 5 $0.00015 $0.00518
Sonnet 5 $0.00006 $0.00207
Haiku 4.5 $0.00003 $0.00104

Measured 4d ago against content hash 7831f59bd586, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

dataverse-sync scanned grade A with 1 finding 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 4d 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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

response = requests.get(url, params=params, headers=headers)
skills/dataverse-sync/SKILL.md · 141 lines

How it starts

The opening of the file, as written. The whole thing — 141 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Harvard Dataverse API Sync

Overview

Sync local files with a Harvard Dataverse dataset using the Native API.

Key API Endpoints

Action Endpoint Method
Get dataset metadata /api/datasets/:persistentId/?persistentId={DOI} GET
Add file /api/datasets/:persistentId/add?persistentId={DOI} POST
Replace file /api/files/{file_id}/replace POST
Delete file /api/files/{file_id} DELETE

Authentication

All requests require the X-Dataverse-key header with your API token:

headers = {"X-Dataverse-key": "your-api-token"}

Common Operations

Get Dataset Files

import requests

url = "https://dataverse.harvard.edu/api/datasets/:persistentId/"
params = {"persistentId": "doi:10.7910/DVN/XXXXXX"}
headers = {"X-Dataverse-key": API_TOKEN}

response = requests.get(url, params=params, headers=headers)
data = response.json()
files = data["data"]["latestVersion"]["files"]

for f in files:
    file_id = f["dataFile"]["id"]
    md5 = f["dataFile"].get("md5", "")
    filename = f.get("label", f["dataFile"].get("filename"))
    directory = f.get("directoryLabel", "")

Add File

import json

url = "https://dataverse.harvard.edu/api/datasets/:persistentId/add"
params = {"persistentId": DOI}
headers = {"X-Dataverse-key": API_TOKEN}

json_data = json.dumps({
    "directoryLabel": "path/to/directory",  # Optional
    "categories": [],
})

with open(filepath, "rb") as f:
    files = {
        "file": (filename, f),
        "jsonData": (None, json_data, "application/json"),
    }
    response = requests.post(url, params=params, headers=headers, files=files)

Delete File

url = f"https://dataverse.harvard.edu/api/files/{file_id}"
headers = {"X-Dataverse-key": API_TOKEN}
response = requests.delete(url, headers=headers)

Compare Files Using MD5

import hashlib

def compute_md5(filepath):
    md5_hash = hashlib.md5()
    with open(filepath, "rb") as f:
        for chunk in iter(lambda: f.read(8192), b""):
            md5_hash.update(chunk)
    return md5_hash.hexdigest()

Read the full file on GitHub · 141 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. 4d ago First seen · 141 lines · 31 tokens per session scan A 7831f59bd586

Subscribe to this mod's changes

dataverse-sync is a skill published in the GitHub repository letitbk/claude-academic-setup (43 stars, last pushed 2mo ago), licensed MIT. It adds 31 tokens to every session and 1,037 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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