changelog-formatting

changelog-formatting is a skill for Claude Code, Codex from mattppal/shipping-szn. It costs 41 tokens per session (1,763 once invoked), scanned A, original, MIT.

A formatting tool for turning raw release notes into Replit’s changelog structure. A changelog is a record of product updates, organized so readers can quickly find what changed.

In plain words
What is it for?
Use it to prepare Replit changelog entries with the required metadata, update list, platform sections, media formatting, and no Slack links.
Why use it?
It removes repetitive work around frontmatter, sections, links, media paths, and formatting rules.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one.

Needs its repository: it runs a file that does not travel with it, so clone the repository first. The line is ./media/YYYY-MM-DD/filename → /images/changelog/YYYY-MM-DD/filename.

Good fit Use it to prepare Replit changelog entries with the required metadata, update list, platform sections, media formatting, and no Slack links.

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Install

Getting it into your agent

It runs from inside its repository, so the clone comes first — what it calls does not travel with the file alone.

Clone the repo
git clone --depth 1 https://github.com/mattppal/shipping-szn
agentmods
npx agentmods add skills/mattppal/shipping-szn/changelog-formatting

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for changelog-formatting

README.md
[![agentmods](https://agentmods.dev/badge/skills/mattppal/shipping-szn/changelog-formatting/github.svg)](https://agentmods.dev/skills/mattppal/shipping-szn/changelog-formatting)
Your own site
<a href="https://agentmods.dev/skills/mattppal/shipping-szn/changelog-formatting"><img src="https://agentmods.dev/badge/skills/mattppal/shipping-szn/changelog-formatting/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for changelog-formatting

Your own site · 80×15
<a href="https://agentmods.dev/skills/mattppal/shipping-szn/changelog-formatting"><img src="https://agentmods.dev/badge/skills/mattppal/shipping-szn/changelog-formatting.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 41 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,763 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5.1 $0.00041 $0.01763
Opus 5 $0.00020 $0.00881
Sonnet 5 $0.00008 $0.00353
Haiku 4.5 $0.00004 $0.00176

Measured 11d ago against content hash b13811523d92, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

changelog-formatting scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured 11d ago.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.rulesync/skills/changelog-formatting/SKILL.md · 258 lines

How it starts

The opening of the file, as written. The whole thing — 258 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Changelog Formatting Skill

This skill helps you format changelog content according to Replit's template structure.

Overview

Convert raw changelog content into properly structured documentation following:

  1. Correct frontmatter with date and metadata
  2. Proper section organization ("What's new" TOC, then "Platform" and "Teams and Enterprise" sections)
  3. Correct media path formatting and Frame wrappers
  4. Consistent formatting and style
  5. No Slack links in final output (remove all Slack announcement links)

Quick Start

1. Add Frontmatter

Use the add_changelog_frontmatter tool - don't write frontmatter manually:

# The tool will create:
---
title: October 30, 2025
description: 2 min read
---

2. Create "What's new" TOC

Immediately after frontmatter, add a "## What's new" section with anchor-linked bullet points for ALL updates (both Platform and Teams/Enterprise):

## What's new

* [Feature One](#feature-one)
* [Feature Two](#feature-two)
* [Enterprise Feature](#enterprise-feature)

Anchor format: Convert feature name to lowercase, replace spaces with hyphens.

3. Categorize Updates into Sections

After the TOC, organize content into two main sections:

  • ## Platform: General features, tools, improvements
  • ## Teams and Enterprise: SSO, SAML, SCIM, Identity, Access Management, Viewer Seats, Groups, Permissions

4. Structure Content

Each section should have ### subsections for each feature:

## Platform

### Feature One

Description of the feature.

### Feature Two

Description of the feature.

## Teams and Enterprise

### Enterprise Feature

Description of the feature.

5. Format Media (CRITICAL)

Process for each media reference:

  1. Verify the file exists first:

    • Check if ./docs/updates/media/YYYY-MM-DD/filename exists on the filesystem
    • If the file doesn't exist, REMOVE the reference from the markdown
    • Only process media that actually exists
  2. Convert local paths to public CDN paths:

    ./media/YYYY-MM-DD/filename → /images/changelog/YYYY-MM-DD/filename
    

Read the full file on GitHub · 258 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. 11d ago First seen · 258 lines · 41 tokens per session scan A b13811523d92

Subscribe to this mod's changes

changelog-formatting is a skill published in the GitHub repository mattppal/shipping-szn (2 stars, last pushed 7mo ago), licensed MIT. It adds 41 tokens to every session and 1,763 once invoked, about $0.0002 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.