ci-leg-skipping-moves-minutes-it-does-not-remove-them SKILL.md skillA

ci-leg-skipping-moves-minutes-it-does-not-remove-them from wan-huiyan/agent-traffic-control is an agent skill: a SKILL.md folder an AI agent loads when a task calls for it.

Install it, pinned
mdr add wan-huiyan/agent-traffic-control/ci-leg-skipping-moves-minutes-it-does-not-remove-them@v1.0.0

Pins v1.0.0 in mdr.lock. Pin the fingerprint instead.

Audit grade
A, 17 of 17 checks passed
Kind
SKILL.md skill
Repository
wan-huiyan/agent-traffic-control
Path
plugins/agent-traffic-control/skills/ci-leg-skipping-moves-minutes-it-does-not-remove-them/SKILL.md
Versions recorded
1
Latest version
v1.0.0, committed Sep 11, 2026
Size
11,941 bytes
Repository stars
3
License
MIT

You are about to propose, price or approve a CI cost saving that works by making a job or matrix leg SKIP on pull requests — a path filter, a safe list, a changed-files gate, an exemption list. Check first whether the pipeline runs a complement or backstop on merge, on push, or nightly: many do, and then the legs a pull request skipped are exactly the legs some later run executes, so a branch that goes green once and merges bills the same total either way and the wall clock does not move at all.

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

# Skipping a CI Leg Moves Its Minutes, It Does Not Delete Them

## Problem

The bill is too high, so someone proposes the obvious fix: this job does not
need to run on this kind of change, so filter it out and save its minutes.
The reasoning is clean, the change is small, and it is usually wrong.

**A leg removed from the pull-request run is not a leg removed from the
bill if the pipeline runs it somewhere else.** Many pipelines deliberately
carry a backstop: the merge or push run executes the COMPLEMENT of what the
pull-request run skipped, precisely so that a wrong filter cannot make a leg
stop running anywhere. Under that design the minutes are redistributed, not
deleted.

**For a branch that is made ready once and merges, the total is unchanged.**
The saving exists only from the SECOND ready run onward, and its size is:

```
saving = (ready runs − 1) × the skipped legs' minutes
```

So a change that looks like "we no longer pay for this leg" is really "we pay
for this leg once per merge instead of once per ready run", and on a branch
that lands first time those are the same number.

**And on wall clock it usually saves nothing at all.** Matrix legs run in
…

Read the whole file at its exact version.

How to install

The exact contents, by fingerprint
mdr add wan-huiyan/agent-traffic-control/ci-leg-skipping-moves-minutes-it-does-not-remove-them@sha256:3d7be73e5006e142

The line at the top of this page pins the label v1.0.0, 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_4mlepen6dywaavbl.svg)](https://markdownregistry.com/a/art_4mlepen6dywaavbl)

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

Versions

The registry has recorded 1 version of this file, committed on Sep 11, 2026.

versioncommittedcommitsizeaudit
v1.0.0 latest2026-09-11 2d7d978 11,941 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 (11941 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

wan-huiyan/agent-traffic-control · 3 stars · license MIT · pushed 2026-09-22 · branch main

API

GET https://markdownregistry.com/api/v1/artifacts/art_4mlepen6dywaavbl
GET https://markdownregistry.com/api/v1/resolve?ref=wan-huiyan/agent-traffic-control/ci-leg-skipping-moves-minutes-it-does-not-remove-them
GET https://markdownregistry.com/api/v1/blob/3d7be73e5006e142515225c0b175cd076d1ad975ad3651cab84639a9925fac20

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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