suaveplan/openspec/changes/enterprise-gaming-hitbox/tasks.md

Tasks: enterprise-gaming-hitbox

0. Pre-flight (non-negotiable)

• 0.1 Confirm clean working tree (git status reports nothing) and no in-flight worktrees with uncommitted work (git worktree list then git status in each)
• 0.2 If any worktrees exist under .claude/worktrees/, account for each one: still-active agent, work-pending-merge, or stale-and-prune. Stale worktrees MUST be removed (git worktree remove) before opening a new one — code that has been lost twice on main is the failure mode this guards against.
• 0.3 Confirm the package set in MANIFEST.md matches find packages -maxdepth 3 -name package.json count. Drift here means a prior change archived without regenerating the manifest.

Phase 1 — Scaffold

• Create gaming/combat/hitbox/ (@suaveplan/hitbox, 0.1.0, sideEffects: false)
• tsconfig.json, vitest.config.ts

Phase 2 — Error codes & constants

• src/error-codes.ts + src/constants/index.ts — default zone multipliers

Phase 3 — Types

• src/types/common.ts + common.md

Phase 4 — Intersection math

• src/utils/intersection.ts — ray-AABB, ray-sphere, ray-capsule, sphere-AABB, AABB-AABB
• Tests + docs

Phase 5 — Hitbox rig

• src/core/hitbox-rig/hitbox-rig.ts — bone update, descriptor validation, volume list
• Tests + docs

Phase 6 — Query

• src/core/query/query.ts — queryRay, querySphere, queryAABB with spatial-hash broad-phase, result sorting
• OTel instrumentation
• Tests + docs

Phase 7 — Property tests

• tests/property.test.ts — ray-sphere hit distance bounds, AABB containment

Phase 8 — Pre-publish gate

• bunx turbo lint typecheck test --filter=@suaveplan/hitbox green
• 100% coverage
• Publish: bun scripts/publish.ts --package @suaveplan/hitbox