# Evidence Linking

> SOP for linking evidence pages to causal claims — creates supported_by or contradicts edges.

- Skill: `yogsoth-ai/evidence-linking` (Agent Skill)
- Install (CLI): `npx skillmds@latest add yogsoth-ai/evidence-linking`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yogsoth-ai/evidence-linking/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: yogsoth-ai (https://skillmd.com/u/yogsoth-ai)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/yogsoth-ai/evidence-linking

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# Evidence Linking

Link evidence pages to the causal claims they support or contradict.

## Tool

`vault_add_edge`

## Protocol

1. Identify the claim (causal edge or claim page) that the evidence addresses
2. Determine relationship: supported_by or contradicts
3. Call vault_add_edge from evidence page to claim page
4. Set weight based on evidence strength (hierarchy: RCT > observational > theoretical)
5. **Inline wikilink:** Ensure the evidence page body contains `[[dir/slug]]` pointing to the claim (dir/slug = target path minus `.md`). Place inline at semantically relevant location. Skip if already present.

## HARD-GATE

<HARD-GATE>
Evidence must be linked to a specific claim, not to a general topic.
</HARD-GATE>

## Yield

Returns: `{ claim: string, evidence: string, relationship: string, weight: number }`