tegwick
fae3cbde8b
Cross-dive synthesis (research/260614-shard-spectrum-synthesis/) reading the two Nelson conceptual systems, four engines, and three modern tools across each other: a shard family matrix and eleven capability spectra (addressing, content identity, structure, history, native query, translation, attachment mode, operational envelope, access grant, write granularity, content types) — positions anchored at both ends by a real system, federation ops degrading by position. Through-lines: files-canonical/index-derived wins; fine-grained addressing is adoptable; transclusion=clone=embed is one primitive; structure/history federate iff in-text; attach mode is a per-binding choice; Notion proves the platform can enforce no-silent-mutation. Folded into SHARD-WP-0002: T11 reframed around the eleven spectra; T12 page model stretched four ways (prose + typed records + non-Markdown assets + query-defined); T13 adds Notion supplement; T14 rewritten as the three-mode attachment taxonomy (file-store / in-engine-host / external-API); T15 adds lossy-with-fidelity-report; new T16 (addressing, content identity, dimensional/query navigation). UC coverage UC-34-43 -> UC-34-59. Workplan now 16 tasks. No new UCs (synthesis only). Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
260614 — Shard spectrum synthesis (one capability model across nine systems)
Date: 2026-06-14
What this is
A synthesis (no new external research) that reads the nine studied systems across
each other and distills them into a single comparative model feeding the shard adapter
contract (SHARD-WP-0002).
The nine: two conceptual ancestors (Xanadu, ZigZag), four engines (XWiki, TWiki, Foswiki + the wiki-engines landscape), and three modern tools (Roam, Obsidian, Notion), against the federation/origin research.
Centerpieces:
- The shard family matrix — every candidate backend × {substrate, attach mode, addressing, structure, history, query, transclusion, →Markdown, write granularity}, with Xanadu/ZigZag as the ideal anchors.
- The eleven capability spectra — the claim that the adapter contract should model positions on spectra (addressing, content identity, structure, history, query, translation, attachment mode, operational envelope, access grant, write granularity, content types), each anchored at both ends by a real system, with federation ops degrading by position.
- UC-44–UC-59 → workplan task mapping, including one genuinely new thread (T16: addressing, content identity, dimensional/query navigation).
Contents
| Path | Role |
|---|---|
findings.md |
Family matrix, the eleven spectra, cross-cutting through-lines, UC→task fold-in, recommendations/decisions, escalated open questions |
Status
Synthesis complete. No new use cases (consolidation only). Feeds SHARD-WP-0002: T11
reframed around the eleven spectra; T12 page-model breadth (prose + typed records +
non-Markdown assets + query-defined); T13 history confirmed; T14 three-mode attachment
taxonomy; T15 lossy-with-fidelity-report; new T16 (addressing, content identity,
dimensional/query navigation). UC coverage in the workplan extended UC-34–UC-43 →
UC-34–UC-59.
Through-lines recorded: files-canonical/index-derived is the winning architecture; fine-grained addressing is real and adoptable (adopt native, fingerprint otherwise); transclusion ⇄ clone ⇄ embed is one primitive; structure/history federate iff in text; attach mode is a per-binding capability-gated choice; Notion proves the platform can enforce no-silent-mutation via scoped grants.