check-upstream SKILL.md skillA
check-upstream from pdugan20/claudelint is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add pdugan20/claudelint/check-upstream@git:20260913.c2fd2b9Pins git:20260913.c2fd2b9 in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- pdugan20/claudelint
- Path
.agents/skills/check-upstream/SKILL.md- Versions recorded
- 2
- Latest version
- git:20260913.c2fd2b9, committed Sep 13, 2026
- First version recorded
- Jul 27, 2026
- Size
- 3,939 bytes
- Repository stars
- 14
- License
- MIT
Refreshes the Claude Code docs baseline, runs the conformance check, and recommends schema and rule updates. Use when asked to "check for upstream changes", "check schema drift", "are our schemas up to date", or "what is new in Claude Code".
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
# Check Upstream Detects new Claude Code documentation surface and drift between the official docs and claudelint's schemas, then recommends concrete updates. The deterministic half of this system runs in CI. This skill adds the judgment the scripts deliberately do not attempt: reading the prose diff and deciding what it means for claudelint. ## Usage Run this skill when asked to check for upstream changes, verify schemas are up to date, or find out what changed in Claude Code's documentation. ### Step 1: Refresh the baseline Run `npm run upstream:refresh`. Watch for two things in the output: - `[NEW PAGE] <slug> (NOT WATCHED ...)` - a docs page appeared that claudelint does not watch. This is how a whole feature (such as plugin dependencies) arrives. Read the page and decide whether it belongs in `src/upstream/watchlist.ts`. - `Extractor guard tripped` - the extractor stopped finding facts on a page. Upstream changed format. Fix the extractor in [scripts/upstream/extract.ts](../../../scripts/upstream/extract.ts). Do NOT lower `minFacts` to make it pass; that disables the detector. ### Step 2: Read the prose diff Run `git diff -- docs-baseline/`. …
Read the whole file at its exact version.
How to install
mdr add pdugan20/claudelint/check-upstream@sha256:d2c3d858431d007aThe line at the top of this page pins the label git:20260913.c2fd2b9, 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_fglxq4raspoplmnh)
3 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 2 versions of this file, between Jul 27, 2026 and Sep 13, 2026, about one every 49 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20260913.c2fd2b9 latest | 2026-09-13 | c2fd2b9 | 3,939 B | A | view · diff |
| git:20260727.016b46d | 2026-07-27 | 016b46d | 3,720 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 (3939 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
pdugan20/claudelint · 14 stars · license MIT · pushed 2026-11-03 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_fglxq4raspoplmnh GET https://markdownregistry.com/api/v1/resolve?ref=pdugan20/claudelint/check-upstream GET https://markdownregistry.com/api/v1/blob/d2c3d858431d007ad44b7dcc0bd6d0d5dd00e675f1278a812d23364df68c9846
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.