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Individual skill

proving-claims

Builds claim-to-evidence trace rows with statuses, gaps, tests, evals, reviews, and narrower non-claims. Use when a packet asserts something a reviewer must trust. Do not use to make the final ship decision, judge public legal wording, or invent evidence that does not exist.

skills/proving-claims/SKILL.md

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Last checked
Nov 6, 2026

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Repository last updated
Nov 6, 2026
License
MIT

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# Proving Claims

## Overview

Evidence should answer named claims. It should not just create a vague sense that the change is fine. This skill turns each claim into a proof you can trace. It keeps six things apart: a fact, an assumption, an unknown, a source claim (something a source says), local proof (something you checked yourself), and decision authority (who gets to decide).

Boundary: this skill builds the claim-to-evidence trace that feeds other decisions. It does not decide whether to ship (`checking-release-readiness`), determine whether public legal/safety wording overpromises (`checking-legal-and-safety-wording`), validate source lineage (`checking-source-claims`), or create packet files (`creating-change-records`).

## Decision contract

- **Claim checked:** every material claim is tied to evidence, a stated gap, or a deliberate deferral, no claim reaches past its evidence, and the load-bearing claim's evidence is reproducible by an independent party or independently authored — not the actor's own narration.
- **Artifact observed:** `basis.md`, test, and review evidence -> claim-to-evidence rows with a status (`pass`/`fail`/`gap`/`deferred`/`not applicable`/`planned`) in `trace.md`/`verification.md`.
- **Decision affected:** warn -- the evidence posture that later `ship.md` release-readiness weighs.
- **Failure class:** overreaching-claim (a claim stated past its evidence, or a `fail`/unowned `gap` carried as shippable).