plumb-line-adopt SKILL.md skillA

plumb-line-adopt from slopstopper/plumb-line is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add slopstopper/plumb-line/plumb-line-adopt@git:20260930.746ecb4

Pins git:20260930.746ecb4 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
slopstopper/plumb-line
Path
skills/plumb-line-adopt/SKILL.md
Versions recorded
18
Latest version
git:20260930.746ecb4, committed Sep 30, 2026
First version recorded
Aug 14, 2026
Size
12,028 bytes
Repository stars
4
License
Apache-2.0

Use when a builder wonders what plumb-line would do for their codebase or which part to adopt, or when, mid-task, they are building with a stand-in: stubbing a service that is not built yet, falling back to cached or last-known values when a source fails, filling a field with generated or sample data, mixing fixture, cached or LLM-produced data with real data. It answers yes, and: add it, and here is how to keep track of it (a label or marker, or plumb-line's provenance primitive where it fits).

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

# Adopt plumb-line — which part, on what

REQUIRED READING FIRST: `reference/fit-map.md` (plugin root). If this file
cannot be read, stop immediately and report: "Cannot route: `reference/fit-map.md`
is missing or unreadable. Do not recommend from memory — the fit map is the
source of truth for what the primitives are for." Read
`reference/portable-principles.md` only if the conversation needs the
principles named; the fit map is sufficient for routing.

This skill is a concierge for the whole toolkit — the four sibling skills
AND the run-time primitives. Its job is the question the docs cannot answer
for a specific repo: *"what would I use this on, here?"* It recommends only.
It never edits files, installs anything, or scaffolds code; every action
belongs to the skill it hands off to, or, for a stand-in met mid-task, to
the agent or builder doing the task.

## 1. Look — a lightweight, read-only scan

Scan the repository for **routing signals only** (this is not an audit —
do not read whole files; filenames, imports, and greps suffice):

- HTTP ingestion: `requests` / `httpx` / `fetch` / `axios` whose results
  feed computation; caching or retry-with-cache logic.
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add slopstopper/plumb-line/plumb-line-adopt@sha256:17a56319b7d91875

The line at the top of this page pins the label git:20260930.746ecb4, 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 badge

[![mdr](https://markdownregistry.com/badge/art_chti57yzug5cquwh.svg)](https://markdownregistry.com/a/art_chti57yzug5cquwh)

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

Versions

The registry has recorded 18 versions of this file, between Aug 14, 2026 and Sep 30, 2026, about one every 3 days.

versioncommittedcommitsizeaudit
git:20260930.746ecb4 latest2026-09-30 746ecb4 12,028 BA view · diff
git:20260930.88d1a5e2026-09-30 88d1a5e 11,994 BA view · diff
git:20260930.ce74be02026-09-30 ce74be0 11,834 BA view · diff
git:20260930.1c3836d2026-09-30 1c3836d 11,857 BA view · diff
git:20260930.42df28e2026-09-30 42df28e 11,851 BA view · diff
git:20260929.27fd14d2026-09-29 27fd14d 10,875 BA view · diff
git:20260929.39c57d12026-09-29 39c57d1 10,579 BA view · diff
git:20260929.3a200782026-09-29 3a20078 10,325 BA view · diff
git:20260928.e6b6ad92026-09-28 e6b6ad9 9,489 BA view · diff
git:20260928.3a8d8f82026-09-28 3a8d8f8 9,488 BA view · diff
git:20260925.e42987b2026-09-25 e42987b 9,465 BA view · diff
git:20260925.657bd7b2026-09-25 657bd7b 9,430 BA view · diff
git:20260925.1caeddb2026-09-25 1caeddb 9,268 BA view · diff
git:20260819.ce5e6572026-08-19 ce5e657 8,984 BA view · diff
git:20260819.905aa652026-08-19 905aa65 8,487 BA view · diff
git:20260814.bd9577f2026-08-14 bd9577f 7,082 BA view · diff
git:20260814.66fa28f2026-08-14 66fa28f 5,956 BA view · diff
git:20260814.da47c7b2026-08-14 da47c7b 5,487 BA 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 (12028 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

slopstopper/plumb-line · 4 stars · license Apache-2.0 · pushed 2026-11-02 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_chti57yzug5cquwh
GET https://markdownregistry.com/api/v1/resolve?ref=slopstopper/plumb-line/plumb-line-adopt
GET https://markdownregistry.com/api/v1/blob/17a56319b7d91875df14c3bb98d1e2e5f35ee69fe3b91a694784b421f469b174

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.

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Every file in slopstopper/plumb-line

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