plumb-line-method SKILL.md skillA
plumb-line-method from slopstopper/plumb-line is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add slopstopper/plumb-line/plumb-line-method@git:20261003.2d3a0ecPins git:20261003.2d3a0ec 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-method/SKILL.md- Versions recorded
- 14
- Latest version
- git:20261003.2d3a0ec, committed Oct 3, 2026
- First version recorded
- Jul 5, 2026
- Size
- 18,820 bytes
- Repository stars
- 4
- License
- Apache-2.0
Use when an edit would make the system look more real, finished or certain than it is, to make the honest version instead: a failing test or red CI that cannot honestly pass (a dependency down, a bar missed, nobody knows why) under pressure to get it green anyway; a fallback, fixture or generated value passed off as real; a guessed threshold hardcoded as if measured; a stub called production-ready; a baseline regenerated without explaining the drift; a confidence or provenance field dropped…
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
# The plumb-line method Read `reference/portable-principles.md` (relative to the plugin root) and teach from it. Do not restate the principles here — that file is the single source. If the file cannot be read, stop immediately and report: "Cannot teach: `reference/portable-principles.md` is missing or unreadable. Do not continue from memory." If you were invoked in the middle of a task, go straight to the section for that moment; the walk can wait. A failing test or red CI that has to be made to pass, where the reason may lie outside the code: **Mid-task: a test that cannot pass honestly**. Any other edit that would make something look more real, finished or certain than it is: **Mid-task: other moments**. When invoked: 1. Read the principles document. 2. Give the builder the thesis and the spine (null results are valid) first. 3. Walk the nine principles only as deep as asked; lead with the one most relevant to what the builder is doing. 4. Always end on the one-line test as the portable gut-check. 5. Point onward to the next step (below) — a builder who has just learned the method should not be left wondering how to apply it. …
Read the whole file at its exact version.
How to install
mdr add slopstopper/plumb-line/plumb-line-method@sha256:6da306645c989790The line at the top of this page pins the label git:20261003.2d3a0ec, 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.
[](https://markdownregistry.com/a/art_33fhllyfmf6gwn3t)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 14 versions of this file, between Jul 5, 2026 and Oct 3, 2026, about one every 7 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261003.2d3a0ec latest | 2026-10-03 | 2d3a0ec | 18,820 B | A | view · diff |
| git:20260930.746ecb4 | 2026-09-30 | 746ecb4 | 18,115 B | A | view · diff |
| git:20260930.88d1a5e | 2026-09-30 | 88d1a5e | 18,060 B | A | view · diff |
| git:20260929.27fd14d | 2026-09-29 | 27fd14d | 17,814 B | A | view · diff |
| git:20260929.39c57d1 | 2026-09-29 | 39c57d1 | 17,355 B | A | view · diff |
| git:20260929.3a20078 | 2026-09-29 | 3a20078 | 16,740 B | A | view · diff |
| git:20260929.e7a481e | 2026-09-29 | e7a481e | 12,880 B | A | view · diff |
| git:20260928.43592f1 | 2026-09-28 | 43592f1 | 12,734 B | A | view · diff |
| git:20260925.e42987b | 2026-09-25 | e42987b | 5,145 B | A | view · diff |
| git:20260814.ee8d646 | 2026-08-14 | ee8d646 | 5,145 B | A | view · diff |
| git:20260814.da47c7b | 2026-08-14 | da47c7b | 5,023 B | A | view · diff |
| git:20260707.2a1c86e | 2026-07-07 | 2a1c86e | 4,679 B | A | view · diff |
| git:20260705.312c42c | 2026-07-05 | 312c42c | 4,296 B | A | view · diff |
| git:20260705.24eb096 | 2026-07-05 | 24eb096 | 4,290 B | A | view |
Audit of the latest version
- pass: Frontmatter block present
- pass: Frontmatter declares a name
- pass: Frontmatter declares a description
- pass: Size between 200 bytes and 200 KB (18820 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
slopstopper/plumb-line · 4 stars · license Apache-2.0 · pushed 2026-11-02 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_33fhllyfmf6gwn3t GET https://markdownregistry.com/api/v1/resolve?ref=slopstopper/plumb-line/plumb-line-method GET https://markdownregistry.com/api/v1/blob/6da306645c989790217adf876b01eabc3f4121a3b4684479bbae98f6027eeb82
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.