# Parallax Depth

> Estimate reasoning depth from the shift between the current query and recent history (deep/medium/shallow). Use to set budget before a long answer. Scope boundary — START classes → `emergency-triage-compute`; zoom level → `cartographic-zoom`.

- Skill: `catcorner22/parallax-depth` (Agent Skill)
- Install (CLI): `npx skillmds@latest add catcorner22/parallax-depth`
- Raw SKILL.md: https://api.skillmd.com/api/skills/catcorner22/parallax-depth/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Finance & Business
- Author: CatCorner22 (https://skillmd.com/u/catcorner22)
- Updated: 2026-09-21
- Page: https://skillmd.com/skills/catcorner22/parallax-depth

---

# Parallax depth of query vs history

**#50** · **Domain:** Photography / surveying · **Category:** advanced · **Difficulty:** 🟡 Medium

## Core principle

Apparent motion against the background tells you distance.

## AI problem addressed

Follow-ups get a full treatise or a shrug with no read on how deep the thread is.

## Implementation

Overlap current query tokens with last 3 turns.
>0.4 → deep (high budget); <0.1 → shallow (standard); else medium.
Set reasoning_budget; do not invent history.

## Boundaries

- Prototype as prompt scaffold (🟢) before full pipeline middleware (🟡/🔴)
- Category router: **`ai-transfer-advanced`**
- Catalog: **`ai-transfer-ecosystem-primer`**
- Runtime plugin id: `parallax_depth`