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Cumul – Concatenate all files in a directory for LLMs

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Cumul – Concatenate all files in a directory for LLMs

Cumul is a lightweight CLI tool that concatenates text files in a directory into a single file, optimized for providing context to Large Language Models (LLMs). It respects .gitignore, filters out binaries and non-text files, adds path headers, and generates a summary report. Key features: Exclude patterns via options (e.g., -e .json,.md). Custom output prefix (e.g., -p my). Built in Zig for efficiency. Install via: curl -fsSL https://raw.githubusercontent.com/xcaeser/cm/main/install.sh | bash Usage: cm [directory] outputs <directory-name>-cumul.txt. Developed to streamline LLM workflows in development. Feedback welcome.

Visit productView on Hacker NewsAug 29, 2025
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best fitHighest predicted score across all platforms for this description.
Product HuntOn track for Day 1 leaderboard · Strong signals: model, user, models · Missing: mac, agents, macos
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AppSumoMay struggle as an AppSumo deal · Missing: plus, platform, intuitive
36%36% predicted probability of success on AppSumo, based on ML models trained on real launch data.
Hacker NewsMay not resonate with HN audience · Strong signals: io · Missing: https docs, excited, just released
35%35% predicted probability of success on Hacker News, based on ML models trained on real launch data.
nativeThis product was originally launched on this platform.
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25%25% predicted probability of success on TrustMRR, based on ML models trained on real launch data.
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16%16% predicted probability of success on Acquire.com, based on ML models trained on real launch data.
BetaListMay not resonate with beta-testers · Missing: web3, chat, crypto
1%1% predicted probability of success on BetaList, based on ML models trained on real launch data.

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