How to run a plain language gap analysis across an organisation with Iso 24495

Who it is forA compliance or communications lead who must assess plain language across many organisational documents and repeat the check over time.

The problemWithout a consistent scoring method, teams cannot compare plain language maturity or show progress between reviews.

The outcomeA maturity assessment with deterministic scoring and an append-only audit trend, based on the provisional Part 4 guidance.

What you need first

An agent that reads the Agent Skills format, such as Claude Code or Codex CLI
Access to GitHub to add the marketplace from its HTTPS address
Bun, only if you want to run the Part 4 tooling

Steps

Install Bun from https://bun.sh
Clone the repository and open its root folder
Run bun test to check the tooling before you rely on it
Invoke the iso-24495-4 skill by name and point it at your document set.
Keep the audit trend file, since each run is appended to it.

Prompt for your agent

Using the iso-24495 repository, apply the iso-24495-4 skill to the document set at <target directory>. Return the five-dimension maturity scores and the findings behind each score. Verify that the bun test suite passes before you trust the output.

Caveat. The Part 4 skill is provisional guidance based on an unpublished committee draft, so its scores are not a measure of ISO conformance.