index.md

Echo

Echo is a deterministic graph‑rewrite simulation engine. In Echo, “WARP” is the core idea: your world state is a graph (structure) plus attachments (data), and each tick applies deterministic rewrite rules to that graph.

Git history is the archive. This page is the live docs map.

Visual Topic Map

flowchart TD
  subgraph Entry["Entry Points"]
    E1["ELI5 ✅"]
    E2["Start Here ✅"]
    E3["WARP Primer ✅"]
  end

  subgraph Core["Core Specs"]
    S1["warp-core ✅"]
    S2["Tick Patch ✅"]
    S3["Serialization ✅/⚠️"]
    S4["Branch Tree 🗺️"]
    S5["Scheduler 🗺️"]
    S6["WVP ✅"]
  end

  subgraph Guides["Guides & Demos"]
    G2["Collision Tour ⚠️"]
  end

  E1 --> E2
  E2 --> E3
  E3 --> S1
  S1 --> S2
  S1 --> S3
  S1 --> S4
  S1 --> S6
  S2 --> S4
  S5 --> S4
  E3 --> G2

  classDef implemented fill:#d7f9e9,stroke:#1f7a4c,stroke-width:1px,color:#0b3d2e;
  classDef partial fill:#fff2cc,stroke:#b58900,stroke-width:1px,color:#4d3b00;
  classDef planned fill:#e6e6e6,stroke:#666,stroke-width:1px,color:#333;

  class E1,E2,E3,S1,S2,S6 implemented;
  class S3,G2 partial;
  class S4,S5 planned;

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Start Here (5–15 minutes)

• Newcomer (no-programming) intro: /guide/eli5
• Start Here guide: /guide/start-here
• WARP primer: /guide/warp-primer
• Architecture overview (draft, but the source of truth for intent): /architecture-outline
• Core runtime spec (warp-core): /spec-warp-core

Curated Map

Core runtime

• WARP core runtime: /spec-warp-core
• Tick patch boundary: /spec-warp-tick-patch
• Rewrite scheduler (current implementation): /scheduler-warp-core
• Merkle commit / snapshot hashing: /spec-merkle-commit
• Two-plane law: /warp-two-plane-law

Determinism

• Deterministic math policy: /SPEC_DETERMINISTIC_MATH
• Deterministic math hazards: /DETERMINISTIC_MATH
• Claim register + evidence: /determinism/DETERMINISM_CLAIMS_v0.1
• Benchmark guide: /BENCHMARK_GUIDE

Contributor workflow

• Contributor playbook: /workflows
• PR submission loop: /procedures/PR-SUBMISSION-REVIEW-LOOP
• Dependency DAGs: /dependency-dags
• Roadmap index: /ROADMAP

Theory / intent

• Architecture outline: /architecture-outline
• Continuum foundations bridge: /continuum-foundations
• Theory: /THEORY
• Methodology: /METHODOLOGY

Run Something (learn by doing)

• Collision DPO tour (static walkthrough): /collision-dpo-tour.html

Echo no longer ships the older local WVP demo stack. Browser debugger delivery is moving to warp-ttd, with Echo keeping the WASM/browser host surfaces.