writing-long-files

Write large files in segments with anchor lines and batch verification.

Updated May 27, 2026
One-click install
npx skills add https://github.com/RuifengFu/agent-skills --skill writing-long-files
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: writing-long-files
Source: https://github.com/RuifengFu/agent-skills/tree/main/hermes/writing-long-files
Command: npx skills add https://github.com/RuifengFu/agent-skills --skill writing-long-files

SYSTEM DOCUMENTATION & REQUIREMENTS

💡 This Skill includes scripts (resource) components.

What problem does it solve?

Handles the challenge of writing very long files that might fail or get truncated when written as a single piece.

Core Features & Use Cases

  • Segmented Writing: Writes large files in segments to avoid issues with timeouts and truncation.
  • Anchor Line Technique: Uses unique anchor lines to identify where to append content.
  • Batch Verification: Provides verification after each batch is written.
  • Writing Style Guidance: Offers guidelines for writing long-form documents for research and business reports.

Quick Start

Start by writing the first chunk of the file. Use write_file(path="long-report.md", content="First section of the document...END_OF_SECTION_1"). After writing all chunks, use patch(path="long-report.md", old_string="END_OF_SECTION_1", new_string="END_OF_SECTION_1\n\n...second section...") for subsequent sections.

Frequently Asked Questions about writing-long-files

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

FAQPage Schema
How do I write large files without getting truncated or timing out?

To write large files without truncation or timeouts, write the content in segments using unique anchor lines. Append subsequent batches by patching the file at the anchor, verifying data integrity after each write.

What is the anchor line technique for segmented data handling?

The anchor line technique uses unique text markers to identify where to append new content in a file. You write an anchor like END_OF_SECTION_1, then use a patch function to replace it with the next segment and a new anchor.

How do I compile large research documents that exceed single execution limits?

Compile large research documents by writing the first chunk to a file, then using a patch method to append subsequent sections at designated anchor lines. This segmented approach bypasses single execution limits for long-form reports.

Does writing long files in segments work for distributed computing environments?

Yes, segmented file writing is designed for distributed computing environments. It mitigates risks of timeouts and truncation during large-scale data generation by writing and verifying content in manageable batches.

What are the limitations of writing large files as a single piece?

Writing large files as a single piece risks truncation and execution timeouts. When file operations exceed single execution limits, the process may fail or generate incomplete text files, requiring segmented writing to ensure data integrity.