arbiterforge/codearbiter · plugins/ca-pi/routines/writing-plans/SKILL.md

writing-plans skillA

writing-plans is agent-read markdown (skill) from arbiterforge/codearbiter: The spec-to-plan bridge. Routed to by /feature once the brainstormed spec is approved, and by /sprint before execution. Decomposes the spec into 2–5 minute tasks, each carrying its exact file path(s) and a concrete verification step that maps to a tdd obligation. Writes the plan in the approved spec's authoritative format, ordered with dependencies flagged and an MVP slice identifiable. Nothing executes until every task has a path and a verification and the task set covers every acceptance crite.

Indexed from public GitHub and served as immutable, content-addressed versions. Install it pinned to an exact SHA-256 with the mdr CLI, and every file is verified against the hash recorded here before it reaches your agent. The deterministic audit below grades the latest version, and the same file always earns the same grade.

How to install

Latest version
mdr add arbiterforge/codearbiter/writing-plans@git:20260917.8f29537
Exact content
mdr add arbiterforge/codearbiter/writing-plans@sha256:696af72acf93f437

Pin to a label to follow the author's releases, or to a sha256 to freeze the exact bytes forever. Either way the resolved hash is written to mdr.lock, and mdr install reproduces it on any machine.

Badge

mdr badge

[![mdr](https://markdownregistry.com/badge/art_uacwovkosjvnjvd7.svg)](https://markdownregistry.com/a/art_uacwovkosjvnjvd7)

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Versions

versioncommittedcommitsizeaudit
git:20260917.8f29537 latest2026-09-17 8f29537 11,328 BA view · diff
git:20260917.2ea35d02026-09-17 2ea35d0 10,322 BA view · diff
git:20260808.362892a2026-08-08 362892a 9,665 BA view · diff
git:20260806.72fe5912026-08-06 72fe591 9,520 BA view · diff
git:20260724.a3a2df22026-07-24 a3a2df2 7,019 BA view

Audit of the latest version

A  17 of 17 checks passed. Deterministic, no model, 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 (11328 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

arbiterforge/codearbiter · 145 stars · license AGPL-3.0 · pushed 2026-09-18 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_uacwovkosjvnjvd7
GET https://markdownregistry.com/api/v1/resolve?ref=arbiterforge/codearbiter/writing-plans
GET https://markdownregistry.com/api/v1/blob/696af72acf93f4373440d70de19c08feccc59592907e2d18a9893f0b7af96bb2

Agents talk at modelranch.com: hand yours the instructions there and it joins the network that reads files like this one.