generated from coulomb/repo-seed
tegwick
d2c73b02d9
WP-0009 git-backed DecisionLog + per-space append authority (keystone backing); WP-0010 derived views (wikilinks, BackLinks, RecentChanges, AllPages/SiteMap); WP-0011 incremental union + equivalence index + I-2 verification; WP-0012 second adapter (git-IS-store) validating the contract on a new substrate. Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
110 lines
3.3 KiB
Markdown
110 lines
3.3 KiB
Markdown
---
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id: SHARD-WP-0010
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type: workplan
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title: "derived views — wikilinks, BackLinks, RecentChanges, AllPages/SiteMap"
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domain: whynot
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repo: shard-wiki
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status: active
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owner: tegwick
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topic_slug: whynot
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created: "2026-06-15"
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updated: "2026-06-15"
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depends_on:
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- SHARD-WP-0007
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---
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# SHARD-WP-0010 — Derived views
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## Goal
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Implement the **core derived views** over the union (`FederationRequirements` ADR-03): the
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wikilink/red-link model (ADR-06), **BackLinks** (the strongest core view), **RecentChanges**,
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and **AllPages / SiteMap**. All are derived-tier (recomputable; incrementally maintainable
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later by SHARD-WP-0011) and carry provenance. Presentation stays out of core (L6).
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**Non-goal:** full-text Search (hybrid delegate-or-derive — a later workplan); ranking; a UI.
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## Context
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- Views decision: `FederationRequirements.md` ADR-03; links: ADR-06. Blueprint §8.4.
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- Builds on the union (`src/shard_wiki/union/`) + coordination journal.
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---
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## Wikilink + red-link model
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```task
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id: SHARD-WP-0010-T1
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status: todo
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priority: high
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```
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A CommonMark **wikilink extension** parser (`[[Target]]` / `[[Target|label]]`) that extracts
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link targets from a page body and resolves each via the union (ADR-01): resolved → link;
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unresolved → **red-link** (createable, UC-23). CamelCase auto-link off by default (opt-in per
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space). The link **model + resolution is core**; rendering is L6. Tests: extraction, resolve vs
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red-link, CamelCase opt-in.
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## BackLinks (core)
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```task
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id: SHARD-WP-0010-T2
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status: todo
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priority: high
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```
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A derived **BackLinks** index over the union link graph: for any identity, the set of pages
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linking to it (UC-18). Built from T1 link extraction across attached shards; entries carry
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source provenance. Tests: A→B link yields B.backlinks ⊇ {A}; red-links don't create backlinks;
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chorus pages aggregate.
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## RecentChanges (core)
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```task
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id: SHARD-WP-0010-T3
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status: todo
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priority: medium
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```
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A **RecentChanges** view merging the coordination journal (overlay/apply/alias/fork events)
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with shard change signals (mtime/`current_rev`; `notify` later), ordered, across the union
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(UC-17). Each entry carries provenance (which shard / which decision). Tests: an edit and an
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alias both appear, newest-first; per-shard attribution present.
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## AllPages / SiteMap (core)
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```task
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id: SHARD-WP-0010-T4
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status: todo
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priority: low
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```
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**AllPages** (enumerate union identities, de-duplicated by equivalence/chorus) and a simple
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**SiteMap** (namespace tree from placements). Tests: union enumeration spans shards; chorus
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collapses to one entry with divergence noted; sitemap reflects paths.
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## Wiring + integration
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```task
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id: SHARD-WP-0010-T5
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status: todo
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priority: medium
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```
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Expose `InformationSpace.backlinks(name)`, `recent_changes()`, `all_pages()`, `site_map()`.
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Integration test over two shards. Update SCOPE; `pytest` + pyflakes green.
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---
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## Acceptance criteria
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- Wikilink resolution + red-link detection work via the union (ADR-01/ADR-06).
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- BackLinks, RecentChanges, AllPages, SiteMap computed over the union, provenance-carrying,
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presentation-free (core only).
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- Views are derived/recomputable; no canonical state introduced.
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- `pytest` + pyflakes green; each task committed; state-hub synced.
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## Suggested task order
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T1 wikilinks → T2 BackLinks → T3 RecentChanges → T4 AllPages/SiteMap → T5 wiring.
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