cp-skill-ground SKILL.md skillA

cp-skill-ground from zby/commonplace is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add zby/commonplace/cp-skill-ground@git:20260928.765df35

Pins git:20260928.765df35 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
zby/commonplace
Path
kb/instructions/cp-skill-ground/SKILL.md
Versions recorded
9
Latest version
git:20260928.765df35, committed Sep 28, 2026
First version recorded
Aug 25, 2026
Size
7,432 bytes
Repository stars
92
License
CC-BY-4.0

Ground one source-side claim by retaining minimum verbatim quotes or requiring the pinned snapshot. Use when a note needs source support or retained quotes; choose this skill, not cp-skill-ingest, for quote retention.

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

# Ground a source-dependent claim

`$ARGUMENTS` supplies both inputs. Stop and ask if either is missing.

**Target:** exact repo-relative ingest path or canonical source URL.

**Claim needed:** source-side proposition or question. Do not include target
prose or a target-specific transfer argument.

This skill may reuse or append verbatim quotes and is the only procedure
that writes an ingest's Quotes section. It never edits the target artifact,
never changes any other part of an ingest, and never interprets a paraphrase
stored in an ingest as source support.

## Composition contract

This skill owns source resolution and retained source evidence, not target-side
interpretation. Its direct callers include `cp-skill-write`,
`cp-skill-write-multistage`, and
`assess-a-claim-bearing-artifact-against-external-literature.md`. It may invoke
`cp-skill-ingest` for a canonical URL with no ingest and may return the
conditional `re-ingest.md` route. `Target`, `Claim needed`, the three result
literals, ingest-creation authority, and Quotes ownership are shared interfaces.
Before changing one, inspect these composition siblings under the instruction
collection's edit-time rule.

## Procedure
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add zby/commonplace/cp-skill-ground@sha256:38576a6539433c68

The line at the top of this page pins the label git:20260928.765df35, 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_5ow2qkttzdidbkhs.svg)](https://markdownregistry.com/a/art_5ow2qkttzdidbkhs)

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

Versions

The registry has recorded 9 versions of this file, between Aug 25, 2026 and Sep 28, 2026, about one every 4 days.

versioncommittedcommitsizeaudit
git:20260928.765df35 latest2026-09-28 765df35 7,432 BA view · diff
git:20260927.63741092026-09-27 6374109 7,688 BA view · diff
git:20260925.d1cf3e82026-09-25 d1cf3e8 7,454 BA view · diff
git:20260925.7a010572026-09-25 7a01057 6,816 BA view · diff
git:20260925.e6103222026-09-25 e610322 6,807 BA view · diff
git:20260826.c9cdc702026-08-26 c9cdc70 6,933 BA view · diff
git:20260826.3d5ab6b2026-08-26 3d5ab6b 6,338 BA view · diff
git:20260825.32309702026-08-25 3230970 5,892 BA view · diff
git:20260825.71f8fe92026-08-25 71f8fe9 4,611 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 (7432 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

zby/commonplace · 92 stars · license CC-BY-4.0 · pushed 2026-11-04 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_5ow2qkttzdidbkhs
GET https://markdownregistry.com/api/v1/resolve?ref=zby/commonplace/cp-skill-ground
GET https://markdownregistry.com/api/v1/blob/38576a6539433c68d71c5df70b2e5e6e68e4a2bcaf5faf9d43875ce7bc1c47e7

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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