Fs Read

fs-read

Read a file from the filesystem sandbox and return its content as a Note. Supports text, JSON, and PDF files.

Input

• path: Relative path under scenarios/<world_name>/fs (required)
• max_chars: Optional maximum characters to read (text and PDF files only)
• as_json: Force JSON parse (default: false, text files only)
• grobid_url: Optional GROBID server URL for enhanced PDF parsing (from world_config)

File Types

• Text files: Read as plain text
• JSON files: Returned as text (JSON string body)
• PDF files: Extracted using GROBID (if grobid_url provided) or pymupdf fallback. Returns extracted text body

Output

Success returns:

• resource_id: Note ID containing text content.
• Note content format:
  • metadata Note linked by meta Relation (path/format/size/mtime and parser metadata)
  • body text (file content)

Example content shape:

<file contents...>

Related metadata Note content shape:

{"path":"docs/readme.md","format":"text","size":1234,"mtime":"2026-02-15T10:00:00"}

Examples

{"type":"fs-read","path":"notes/todo.txt","out":"$todo"}
{"type":"fs-read","path":"data/config.json","as_json":true,"out":"$config"}
{"type":"fs-read","path":"papers/article.pdf","out":"$paper"}
{"type":"fs-read","path":"papers/article.pdf","max_chars":5000,"out":"$paper_preview"}