# Evidence Attachment

> SOP for attaching evidence to a claim — create typed edge (supported_by, contradicts, qualifies) with evidence quality metadata.

- Skill: `yogsoth-ai/evidence-attachment` (Agent Skill)
- Install (CLI): `npx skillmds@latest add yogsoth-ai/evidence-attachment`
- Raw SKILL.md: https://api.skillmd.com/api/skills/yogsoth-ai/evidence-attachment/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-attachment

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# Evidence Attachment

Attach a piece of evidence to a claim with a typed relationship edge.

## Tool

`vault_add_edge` + `vault_search`

## Protocol

1. Search vault for the target claim page and the evidence source page
2. Determine relationship type:
   - `supported_by` — evidence directly supports the claim
   - `contradicts` — evidence directly contradicts the claim
   - `qualifies` — evidence limits the scope or adds conditions (use `related_to` edge)
3. Add edge with metadata:
   - `edge_type:` supported_by | contradicts | related_to
   - `evidence_quality:` strong | moderate | weak
   - `directness:` direct | indirect | analogical
4. If evidence source page doesn't exist, create it first via wiki-ingest-source pattern
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>
Must specify evidence quality and directness. "Supported_by" without quality assessment is not allowed.
</HARD-GATE>

## Yield

Returns: `{ claim: string, evidence: string, edge_type: string, quality: string }`