# Presentation Evidence

> Builds a traceable claim ledger from the brief and source inventory, then classifies what is safe to say in the main talk, notes, backup, or not at all. Use when the evidence gate is current for a presentation project or when a router asks for a supported claim ledger.

- Skill: `samulee003/presentation-evidence-2` (Agent Skill, multi-file: 3 files)
- Install (CLI): `npx skillmds@latest add samulee003/presentation-evidence-2`
- Raw SKILL.md: https://api.skillmd.com/api/skills/samulee003/presentation-evidence-2/raw
- Safety review: pending
- Works with: Claude Code, Claude.ai, OpenAI Codex
- Category: Coding & Dev Tools
- Author: samulee003 (https://skillmd.com/u/samulee003)
- Updated: 2026-09-17
- Page: https://skillmd.com/skills/samulee003/presentation-evidence-2

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# Build the evidence ledger

Use when `evidence` is the current gate.

- Read repo instructions, `PRESENTATION-BRIEF.md`, `SOURCE-INVENTORY.md`, and the cited source files before writing new claims.
- Read the current mode from `STATUS.md`; do not assume the mode selected at intake is still current.
- General mode keeps evidence proportionate.
- Record provenance and sufficient qualification for material claims.
- Write `EVIDENCE-LEDGER.md` from `templates/EVIDENCE-LEDGER.md`.
- Create one row per material claim, not one row per source file.
- Record the exact source, source type, caveat, allowed use, and the slide or range the claim may support.
- Add dates, definitions, units, or methods when they are necessary to keep a material claim honest.
- Use `references/claim-safety.md` for research-enhanced claim safety.

Research-enhanced mode alone adds A/B/C/D claim safety.

- `A`: directly supportable in the main talk.
- `B`: reasonable interpretation with careful wording.
- `C`: contested or context-dependent, notes or backup only.
- `D`: unsafe or unsupported, reject.
- Record exact dates, definitions, units, denominators, and methods.
- Record correlation-versus-causation review.
- Record competing measures and stale-value checks.
- Apply official and primary-source preference before secondary summaries.
- Add backup/reference safeguards for contested, overflow, or Q&A-only material.

- Move unsupported but useful material to notes or backup only when the wording stays honest.
- Reject claims that cannot be supported proportionately for the presentation’s mode.
- Stop once every material claim is supported, carefully qualified, moved to notes or backup, or rejected.