Counter-AC

Added

• Fastbreak detection for enchanted and netherite tools, including partial-speed modes that only shave a tick or two off each break.
• Clicks are now tracked at the packet level, so autoclicker checks read real CPS. Butterfly and drag clicking stay safe.

Fixed

• Sensitivity math bug that switched off the aim false-positive guard for anyone above ~33% mouse sensitivity.
• Movement prediction brought closer to vanilla: elytra glide, honey blocks, soul sand vs soul soil, jump simulation.
• Blind windows closed: checks stay active during knockback and right after a setback instead of pausing for seconds at a time.
• Break-time math: mining fatigue, haste/conduit stacking, and harvest tiers now match vanilla (tiers come from server tags instead of name matching).

Changed (breaking-ish)

• Setback is now ON by default. Movement checks (Fly, Speed, Step, Strafe, Jesus, NoFall, Phase, NoSlow, Sneak, Slime, Spider, GroundSpoof, Strict, InvWalk, ScaffWalk, multi-jump) silently rewind the player to their last verified safe position instead of kicking on flag. Flags still log to console, the database, and the webhook. Combat, packet/timing, inventory, and vehicle checks continue to kick. To restore kick-on-flag set setback.enabled: false in config.yml.
• Violation decay is now a single config-driven path. Existing installs should set punish.vl-decay: 0.905 and punish.vl-decay-period: 20.
• Performance pass: exemption checks cached per tick, packet dispatch trimmed, hot-path lists swapped for ring buffers.

Config

• setback.min_confidence (default HIGH): only flags at this confidence tier or higher trigger a setback.
• Per-check setback.checks.<name> toggles; unlisted checks default to rewind for pure-movement checks and kick for everything else.