dif.sh
Markdown feature flags your coding agent installs for you
dif.sh launched on August 7, 2026 with 373 votes, #47 of 23,274 launches that month and more than 99% of that year's launches.
In plain words
dif.sh is a feature flag and A/B testing tool that stores flags and experiments as Markdown files directly in code repositories. Users install it with a single command and require no signup. The system tracks flags, holdouts, and staged rollouts through versioned git files reviewable in pull requests. Coding agents automatically read the configuration on session start, carrying prior learning into new work. Segmentation, conflict detection, and analytics are built into the file format and CLI rather than requiring a separate service.
written from the facts on this page · September 2026
From the sources
Feature flags and A/B tests that live in your repo as Markdown files. One command to install, no signup.
One .md file per feature flag or A/B test, in the repo with the code. Holdouts and staged rollouts are the same format, versioned in git and reviewable in a PR. Your coding agent reads dif/context.json on session start, so prior learning travels with the work. Segmentation, conflict checks, analytics, and cleanup are part of the file format and the CLI, not a separate service you log into. Every dif build regenerates dif/context.json: active flags and experiments, variants, recent learnings. Coding agents pick it up on session start, like a CLAUDE.md for experiments. Declare audience attributes once, then include or exclude on country, plan, or returning_visitor. Values arrive at runtime;…from dif.sh
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