Platform Integrity Systems

This repository contains practical notes on platform integrity for social platforms. The focus is on backend and product systems.

What this repo covers

• Rate limiting
• Behavioral risk signals
• Messaging safety constraints
• Integrity metrics

What this repo does not cover

• Content moderation taxonomies
• Policy language
• Community guidelines

Design assumptions

• Most abuse is predictable.
• Most harm is incentivized by speed and scale.
• Friction works best when it is targeted and reversible.
• Metrics often hide more than they reveal.

Files

• rate-limiting.md
  How limits reduce abuse and shape user behavior

• risk-signals.md
  Signals that suggest elevated risk without relying on content

• messaging-safety.md
  Safety tradeoffs in private communication systems

• metrics.md
  What integrity teams measure—and what they often miss