plumb-line-audit SKILL.md skillA
plumb-line-audit 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-audit@git:20260930.1c3836dPins git:20260930.1c3836d 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-audit/SKILL.md- Versions recorded
- 18
- Latest version
- git:20260930.1c3836d, committed Sep 30, 2026
- First version recorded
- Jul 5, 2026
- Size
- 26,293 bytes
- Repository stars
- 4
- License
- Apache-2.0
Use when auditing a diff or repository against the plumb-line principles — finds laundered uncertainty, boundary leaks, hardcoded priors, overstated maturity, outputs lacking recorded lineage, and baseline drift with no explanation. Read-only: it reports, never auto-fixes.
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
# Audit against the plumb-line principles REQUIRED READING FIRST: `reference/portable-principles.md` (plugin root). If this file cannot be read, stop immediately and report: "Cannot audit: `reference/portable-principles.md` is missing or unreadable. Do not proceed from memory — the principles file is the source of truth for this audit." Scope the audit to the diff if one is given, else the whole repo. For broad sweeps, dispatch read-only subagents and keep only their findings. **Declared architecture first (stop before auditing blind).** Several checks (P1 — Source-truth layer, P2 — One-way layering, the omission pass's adoption calibration) are only as good as the audit's knowledge of what the project *declares*. Resolve it, in order: (1) supplied in the invocation/prompt by the builder; (2) the project's ruleset file (`AGENTS.md`, `CLAUDE.md`, or equivalent) and boundary config. If neither yields a source-truth layer and layer direction: - **Builder present** — stop before the traversal plan and say what is missing. Offer to invoke `plumb-line-bootstrap` in its **declaration-only entry** (a two-minute detour: it asks only the three declaration questions, writes the …
Read the whole file at its exact version.
How to install
mdr add slopstopper/plumb-line/plumb-line-audit@sha256:795e647c2e31cfdeThe line at the top of this page pins the label git:20260930.1c3836d, 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_mhbe2n4ccth5kfsw)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 18 versions of this file, between Jul 5, 2026 and Sep 30, 2026, about one every 5 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260930.1c3836d latest | 2026-09-30 | 1c3836d | 26,293 B | A | view · diff |
| git:20260930.42df28e | 2026-09-30 | 42df28e | 26,284 B | A | view · diff |
| git:20260930.cf5e0f8 | 2026-09-30 | cf5e0f8 | 25,485 B | A | view · diff |
| git:20260930.fe4c73f | 2026-09-30 | fe4c73f | 25,482 B | A | view · diff |
| git:20260930.b51a173 | 2026-09-30 | b51a173 | 25,476 B | A | view · diff |
| git:20260928.3a8d8f8 | 2026-09-28 | 3a8d8f8 | 20,262 B | A | view · diff |
| git:20260928.d671df1 | 2026-09-28 | d671df1 | 20,257 B | A | view · diff |
| git:20260925.e42987b | 2026-09-25 | e42987b | 19,508 B | A | view · diff |
| git:20260925.657bd7b | 2026-09-25 | 657bd7b | 19,404 B | A | view · diff |
| git:20260925.1caeddb | 2026-09-25 | 1caeddb | 19,242 B | A | view · diff |
| git:20260925.e06e234 | 2026-09-25 | e06e234 | 18,957 B | A | view · diff |
| git:20260925.46ed244 | 2026-09-25 | 46ed244 | 18,640 B | A | view · diff |
| git:20260915.dbb6431 | 2026-09-15 | dbb6431 | 17,792 B | A | view · diff |
| git:20260910.a10da43 | 2026-09-10 | a10da43 | 16,796 B | A | view · diff |
| git:20260818.8372958 | 2026-08-18 | 8372958 | 16,751 B | A | view · diff |
| git:20260811.0e73b40 | 2026-08-11 | 0e73b40 | 15,922 B | A | view · diff |
| git:20260811.4a0d014 | 2026-08-11 | 4a0d014 | 15,643 B | A | view · diff |
| git:20260705.9891cee | 2026-07-05 | 9891cee | 14,753 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 (26293 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_mhbe2n4ccth5kfsw GET https://markdownregistry.com/api/v1/resolve?ref=slopstopper/plumb-line/plumb-line-audit GET https://markdownregistry.com/api/v1/blob/795e647c2e31cfde0278000cc1cd451db610afb1546417a8735a52f79b6c4a92
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.