Files API Skill

Manage files with Anthropic's Files API via Python API and CLI.

Updated Nov 7, 2025
One-click install
npx skills add https://github.com/Wesley1600/ClaudeCodeFrameWork --skill files-api-skill
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Files API Skill
Source: https://github.com/Wesley1600/ClaudeCodeFrameWork/tree/main/.claude/skills/files-api
Command: npx skills add https://github.com/Wesley1600/ClaudeCodeFrameWork --skill files-api-skill

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill requires requests, and includes scripts (resource) components.

What problem does it solve?

This Skill enables persistent file storage, intermediate output management, and file sharing via Claude's Files API, eliminating the manual overhead of tracking uploaded files and their results.

Core Features & Use Cases

  • Upload & Download: Seamlessly store documents, data, and media and retrieve them by ID.
  • Intermediate Storage: Persist computation results (JSON, CSV, etc.) for reuse in later steps.
  • File Metadata & Search: Track file metadata locally and search by name, purpose, or metadata.

Quick Start

To upload a file, initialize the Files API Skill and call upload_file with your file path. You can then retrieve, search, or delete files by their IDs as part of your workflow.

Frequently Asked Questions about Files API Skill

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I upload and store files using Claude's Files API?

Upload files using the Files API Skill by initializing it and calling upload_file with your file path. The Skill handles storage, metadata tracking, and returns a file ID for retrieval, supporting documents, data, and media up to 350 MB.

Can I download and retrieve files I've uploaded to Claude's Files API?

Yes, download files by ID after uploading them through the Skill. The Skill persists file metadata locally and enables retrieval across sessions, supporting document storage, intermediate data retention, and cross-session file access.

What are the file size limits and constraints when using the Files API?

The Files API Skill enforces a 350 MB file size limit per upload. It includes exponential backoff retries and robust error handling to manage API failures, but files exceeding this threshold cannot be stored.

How do I search and manage stored files by metadata?

Track and search files by name, purpose, or metadata using the Skill's local metadata tracking system. Query stored files to organize intermediate results like JSON and CSV outputs for reuse in later workflow steps.

Can I use the Files API for intermediate storage in batch processing and ML workflows?

Yes, the Skill persists computation results and workflow artifacts for intermediate storage and reuse. It supports batch processing tasks, ML workflow artifacts, and multi-step processes requiring file retention between steps.

Does the Files API Skill provide both programmatic and command-line interfaces?

The Skill offers a programmable Python API and a CLI for file operations, enabling both automated workflows and manual command-line file management without requiring direct API calls.