Skill

wiki-content-coherence

Detects duplication via Jaccard similarity, structural defects like heading skips, and content drift in single wiki pages. Stage 2.5 in wiki-orchestrator or standalone for coherence checks.

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Markdown

documentation

npx claudepluginhub bordenet/superpowers-plus --plugin superpowers-plus

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This skill uses the workspace's default tool permissions.

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Detect duplication and structural drift in a single wiki page. Stage 2.5 in

SKILL.md

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Last CommitMay 1, 2026

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wiki-content-coherence

Detect duplication and structural drift in a single wiki page. Stage 2.5 in wiki-orchestrator (between content generation and link verification). Advisory gate; HIGH severity → user review before publish.

When to Use

When asked to check a single wiki page for duplication, redundant sections, or structural drift
Triggered by: check wiki page coherence, refactor wiki page, deduplicate wiki content, audit wiki page structure, wiki:coherence-check
Stage 2.5 in wiki-orchestrator; HIGH severity findings block publish until reviewed
Wrong skill? Multi-page refactor → wiki-refactor · Fact accuracy → wiki-verify

Scope

Single page only. Skip pages <500 words. Abort >10,000 words.

Procedure

1 — Fetch and split

tools/wiki-read.sh get "$PAGE_ID" | jq -r '.text' > page.md
# Split on H2/H3; keep sections ≥50 words

2 — Duplication check (Jaccard on top-8 tokens per section)

Tokenize each section → drop stop-words → drop tokens <4 chars → take top 8 by frequency → compare all pairs: J = |A ∩ B| / |A ∪ B|.

Jaccard	Severity	Action
≥ 0.80	HIGH	Consolidate into a single section
0.60–0.79	MEDIUM	Merge unique details or differentiate
0.40–0.59	LOW	Log only

3 — Structural integrity

Check	Flag when
Heading nesting	H2 → H4 jump (H3 skipped)
Orphaned section	H3 appears before any H2
Length anomaly	Section >5× median or <20 words
Topic drift	Heading-fingerprint vs body Jaccard <0.15

4 — Report + gate decision

## Coherence Report — <title>
| # | Section A | Section B | Jaccard | Severity |
|---|-----------|-----------|---------|----------|
| 1 | Overview  | Summary   | 0.85    | HIGH     |
Structural: 1 heading skip (H2→H4), 1 length anomaly
Gate: HIGH finding → user review required

HIGH → halt pipeline, present report, wait for user. Otherwise log and continue.

5 — Remediate duplicates (when confirmed)

Pick the section with richer content; keep it
Merge unique details from the weaker section into it
Delete the weaker section
Re-run heading hierarchy check

Failure modes

Failure	Fix
Threshold too low, misses near-duplicates	Tune: 0.40 LOW · 0.60 MEDIUM · 0.80 HIGH
False positive on intentional repetition	Whitelist repeat-by-design sections (warnings, license blocks)
Structural defects missed by Jaccard	Pair with manual review for layout/flow
"All duplicates are intentional"	If two sections say the same, readers are confused

Companion skills

wiki-orchestrator (Stage 2.5) · link-verification (Stage 3) · wiki-debunker