PaulJuliusMartinez/jless

jless is a terminal-based command-line tool for viewing and navigating JSON and YAML documents. It provides a custom parser and a terminal user interface that supports syntax highlighting, search, and interactive navigation through keyboard and mouse controls. The system allows users to switch between line and data viewing modes, copy values to the clipboard, and optionally export data as sexp format.

This change introduces the core application logic for jless, a terminal user interface for viewing and navigating JSON and YAML documents. The implementation includes a custom parser that converts input into a flat structure for efficient navigation, a line printer that handles syntax highlighting, search match highlighting, and two distinct viewing modes (Line mode for valid JSON text and Data mode for a cleaner layout). It also provides full keyboard and mouse interaction support, including scrolling, focusing, expanding/collapsing containers, copying values/keys/paths to the clipboard, and searching with smart-case regex matching.

src · high confidence

The jless command-line JSON viewer has been updated to version 0.9.0, introducing basic YAML support via the yaml-rust dependency and the ability to copy/paste keys, values, and paths using the clipboard crate. The project also upgrades its argument parsing to clap v4.0.26, updates termion to 1.5.6, and sets the minimum supported Rust version (MSRV) to 1.67. Additionally, a 'sexp' feature has been added to write input to a file as a sexp, and the project structure has been refined to support publishing to crates.io with updated metadata and documentation links.

(dependencies) · high confidence

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

• CAI 59 → 56 (-2.7)
• Rubric changed (rubric-2026.09.10 → rubric-2026.09.18) — scores are not directly comparable.

• Code Health 87 → 87 (-0.2)
• Architecture 100 → 100 (+0.0)
• Maturity 42 → 41 (-1.4)
• Readiness 78 → 58 (-20.3)
• Security 59 → 73 (+13.7)

• Documentation: no architecture or design documentation (README.md)

• Documentation: no usage examples (README.md)
• Outdated: clap
• Outdated: lazy_static
• Outdated: libc
• Outdated: regex
• Outdated: unicode-segmentation

Written by watchdog.canine.dev from the codebase's own history, inside the signed delivery this page is composed from.

PaulJuliusMartinez/jless was measured the same way every project in this corpus was: the same rubric, at a pinned commit, with the result published in full. Point a surveyor at a repository you know and see whether you agree with it.