land-stack SKILL.md skillA
land-stack from edbertchan/catstack is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.
mdr add edbertchan/catstack/land-stack@git:20261013.b9ab23aPins git:20261013.b9ab23a in mdr.lock. Pin the fingerprint instead.
- Audit grade
- A, 17 of 17 checks passed
- Kind
- SKILL.md skill
- Repository
- edbertchan/catstack
- Path
product/skills/land-stack/SKILL.md- Versions recorded
- 6
- Latest version
- git:20261013.b9ab23a, committed Oct 13, 2026
- First version recorded
- Sep 3, 2026
- Size
- 7,800 bytes
- Repository stars
- 6
- License
- none declared
Land (queue/merge) a stacked pull request safely, on any repo using a PR-stacking workflow (Mergify, Graphite, or similar). Trigger when asked to land, merge, ship, or queue a PR or PR stack. Enforces that you act only on SHA-verified PR numbers — never a PR found by branch name.
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
# land-stack Use this skill whenever the user asks to **land / merge / ship / queue** a PR or a PR stack. Generalized from a real incident in a repo using Mergify Stacks — the specifics below (label names, `gh` commands) assume that tooling, but the discipline transfers to any stacking workflow: adapt the discovery/merge commands to whatever queue tool the repo actually uses. ## Hard rule **Never identify the PR to land by branch name.** Two different PRs can share a branch name (an auto-generated workflow branch PR and the intended stack PR). You must land by **SHA-verified PR number**, and every PR must pass a guard before any write (label, thread-resolve, queue, merge). ## Steps 1. **Resolve PR numbers, bottom of stack first.** If the user gives numbers or URLs, use those. If they do not, make a best-effort read-only discovery pass and suggest the numbers yourself: - Enumerate open PRs broadly, e.g. `gh pr list --state open --json number,baseRefName,headRefName,headRefOid,title --limit 100`. - Filter to the repo's actual stack-branch naming convention (e.g. `stack/`). - Prefer candidates whose `headRefOid` exists in the local clone, so the code …
Read the whole file at its exact version.
How to install
mdr add edbertchan/catstack/land-stack@sha256:618363300a5659e9The line at the top of this page pins the label git:20261013.b9ab23a, 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_d4hjsqh4xq3a7dfb)
2 badge image fetches in 30 days. What the badge shows.
Versions
The registry has recorded 6 versions of this file, between Sep 3, 2026 and Oct 13, 2026, about one every 8 days.
| version | committed | commit | size | audit | |
|---|---|---|---|---|---|
| git:20261013.b9ab23a latest | 2026-10-13 | b9ab23a | 7,800 B | A | view · diff |
| git:20260929.b0d44d5 | 2026-09-29 | b0d44d5 | 7,061 B | A | view · diff |
| git:20260915.d61c6aa | 2026-09-15 | d61c6aa | 6,488 B | A | view · diff |
| git:20260912.c0fb784 | 2026-09-12 | c0fb784 | 6,482 B | A | view · diff |
| git:20260911.b9b2228 | 2026-09-11 | b9b2228 | 5,362 B | A | view · diff |
| git:20260903.a49c4d6 | 2026-09-03 | a49c4d6 | 4,768 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 (7800 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
edbertchan/catstack · 6 stars · license none declared · pushed 2026-10-22 · branch main
API
GET https://markdownregistry.com/api/v1/artifacts/art_d4hjsqh4xq3a7dfb GET https://markdownregistry.com/api/v1/resolve?ref=edbertchan/catstack/land-stack GET https://markdownregistry.com/api/v1/blob/618363300a5659e9f2b84d63af21a1c5c7f443dbaeeea38610563da3f6811b00
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.