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author-stepwise-skill SKILL.md skillA

author-stepwise-skill from posthog/context-mill is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned

mdr add posthog/context-mill/author-stepwise-skill@git:20260609.b3642e6

Pins git:20260609.b3642e6 in mdr.lock. Pin the fingerprint instead.

Audit grade: A, 17 of 17 checks passed
Kind: SKILL.md skill
Repository: posthog/context-mill
Path: .claude/skills/author-stepwise-skill/SKILL.md
Versions recorded: 3
Latest version: git:20260609.b3642e6, committed Jun 9, 2026
First version recorded: May 5, 2026
Size: 9,923 bytes
Repository stars: 72
License: none declared

Scaffold a new context-mill skill that walks an agent through an ordered series of narrowly-scoped reference files. Works for any number of steps. Use when the user wants to add a docs-only skill where the agent must read each step in strict order, one at a time, with each step isolated, with clear endpoints, and no prefetching.

Collected from public GitHub. Every version is saved exactly as it was and never changes. Install it at an exact version with the mdr tool, and every file is checked before it reaches your agent. The main file is checked against the SHA-256 fingerprint recorded here, and the others against the fingerprints GitHub keeps for its source commit. The automatic checks below grade the latest version, and the same checks always give the same file the same grade.

What the file says

This skill scaffolds a multistep skill. A docs-only context-mill skill made of an ordered chain of reference files. The agent reads one file at a time and never sees later files until it finishes the current one.

## When this shape is right

This shape gives you three things:

- **Bounded context per step.** The agent reads one focused file at a time. Token use stays small. Attention stays on the current goal. The shape works the same for two steps or twenty.
- **A clean checkpoint per step.** Each step finishes when its verifiable objective completes. Progress is observable. You can pause, check the run is on track, and resume from the next file.
- **Constrained scope.** The agent acts only on what it has been shown. It does not preload future work, branch, or chase tangents.

Use the multistep pattern when **all** of these are true:

- The work is sequential. Step N depends on step N-1's output.
- Each step has a narrow job. If you can describe step N in one paragraph, it is narrow enough.
- The skill is **docs-only**. There is no example project to bundle.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint

mdr add posthog/context-mill/author-stepwise-skill@sha256:141125bb59da3916

The line at the top of this page pins the label git:20260609.b3642e6, which is what most people want. This one pins the sha256 fingerprint of the contents instead, so it survives a label being moved. Either way the exact version is written to mdr.lock, and mdr install downloads and checks those contents again, so it installs them exactly or stops with an error.

Badge

[![mdr](https://markdownregistry.com/badge/art_xgcweewifuysnyva.svg)](https://markdownregistry.com/a/art_xgcweewifuysnyva)

2 badge image fetches in 30 days. What the badge shows.

Versions

The registry has recorded 3 versions of this file, between May 5, 2026 and Jun 9, 2026, about one every 18 days.

version	committed	commit	size	audit
git:20260609.b3642e6 latest	2026-06-09	b3642e6	9,923 B	A	view · diff
git:20260505.7d7fdfe	2026-05-05	7d7fdfe	9,951 B	A	view · diff
git:20260505.79307da	2026-05-05	79307da	8,642 B	A	view

Audit of the latest version

A 17 of 17 checks passed. Fixed automatic checks with no AI involved, so the same checks give the same answer every run.

pass: Frontmatter block present
pass: Frontmatter declares a name
pass: Frontmatter declares a description
pass: Size between 200 bytes and 200 KB (9923 bytes)
pass: No zero-width or bidi control characters
pass: No instruction hidden inside an HTML comment
pass: No link to an exfiltration or paste host
pass: No credential-shaped string
pass: No instruction to send local credentials anywhere
pass: No text hidden with inline styles
pass: No prompt-injection phrasing
pass: No curl or wget piped into a shell
pass: No recursive delete of root, home or parent
pass: No instruction to read or print local credentials
pass: No base64 blob over 200 characters
pass: No link to a raw IP address
pass: No script tag

Source

GitHub

posthog/context-mill · 72 stars · license none declared · pushed 2026-11-07 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_xgcweewifuysnyva
GET https://markdownregistry.com/api/v1/resolve?ref=posthog/context-mill/author-stepwise-skill
GET https://markdownregistry.com/api/v1/blob/141125bb59da3916ac5c485bd716256950f28d673d78e46ca11119e56dfeed55

Your AI assistant does the legwork. You hear about the deals worth your word. Hand yours the standing instructions at modelranch.com and it joins the network that reads files like this one.

Guides: the SKILL.md format and its required fields · what to check before you install a skill · how to pin a skill to an exact version · where to find agent skills · keeping a team on the same skills · which agent file does what.