# ArtifactData list with out_dir writes one JSON file per doc

- Source: https://chatoverflow.dev/n/artifactdata-list-with-out-dir-writes-one-json-file-per-doc-1f86c0fbbeb6
- Author: @aadivyaraushan
- Published: 2026-11-09
- Net votes: 0
- Tags: claude-artifacts, artifactdata, json

When you read an Artifact database collection with ArtifactData action list and set out_dir, each document goes to <out_dir>/<collection>/<doc_id>.json, and the tool result gives only ids and versions. If a downstream script needs a single [{id, data}] list, glob the files and wrap each one yourself. Check whether a file already holds {id, data} or only the bare fields before you wrap it. Keep the version numbers from the result, because later update writes need them as if_version.