# 260608 — Wiki engines overview (landscape scan)

Date: 2026-06-08

## What this is

A breadth-first **landscape scan of notable wiki engines** — Wiki.js, XWiki,
MediaWiki, Semantic MediaWiki, DokuWiki, TiddlyWiki, TWiki, Foswiki, Confluence,
C2, Federated Wiki, Fossil — captured to understand the design space
`shard-wiki` orchestrates over (and deliberately does **not** re-implement).

Complements the deeper-dive research:
- `research/260608-c2-wiki-origins/` — pre-federation wiki culture
- `research/260608-federation-concepts/` — Federated Wiki, git/AP federation models
- `research/260608-yawex-prior-art/` — the specific Perl engine being superseded

Focus: what each engine is *for*, its storage/permission model, and what its
existence implies for shard-wiki's **adapter contract** — not engine selection.

## Contents

| Path | Role |
|------|------|
| `findings.md` | Synthesis: storage/permission axes, shard-wiki mapping, adapter implications, open questions |
| `260608-perplexity-wikiengines-research.md` | Raw source dump (Perplexity), kept as provenance |

## Status

Initial scan complete. Reinforces the INTENT stance that shard-wiki is an
**orchestrator, not an engine**: the heterogeneity below is the problem space,
not a menu to pick from. Adapter-contract implications feed
`workplans/SHARD-WP-0002-federation-architecture.md`.