apex-accelerator github-actions.instructions.md

Project-specific rules for GitHub Actions, the service that runs automated jobs when code changes or scheduled events occur. They cover runners, Node.js, permissions, triggers, dependencies, and action versions.

In plain words
What is it for?
Use them when creating or changing CI/CD workflows for testing, validation, scheduled checks, and other automated repository jobs.
Why use it?
They keep automation workflows consistent and reduce failures caused by outdated runtimes, excessive permissions, or unsuitable triggers.

Instructions file for GitHub Copilot

Install

Getting it into your agent

One page per mod, every tool's command on it. A separate URL per tool would split the same page into five that compete with each other.

agentmods
npx agentmods add instructions/jonathan-vella/apex-accelerator/github-actions
Clone the repo
git clone --depth 1 https://github.com/jonathan-vella/apex-accelerator

Made for: GitHub Copilot.

Per session 1,074 This file is loaded in full into every session.
When invoked 1,074 The same file — it is already loaded in full.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Token cost

What it costs to keep this loaded

Counted locally with the o200k_base tokenizer, which is exact for GPT models; Claude uses its own tokenizer and its counts differ. Treat this as one consistent yardstick across the catalogue rather than a bill. Prices are per million input tokens.

ModelPer sessionOnce invoked
Fable 5 $0.01074 $0.01074
Opus 5 $0.00537 $0.00537
Sonnet 5 $0.00215 $0.00215
Haiku 4.5 $0.00107 $0.00107

Measured yesterday against content hash acdfee5bc1ae, method: parsed. Prices are Anthropic first-party input rates as of 2026-08-30, from the pricing page.

Security

Grade A, and why

apex-accelerator github-actions.instructions.md scanned grade A with 0 findings against 26 rules in 11 categories — prompt injection, anti-refusal, data exfiltration, privilege escalation, supply chain, agent snooping, system-prompt leakage, SSRF and excessive agency — measured yesterday.

A static scan of the body, not an audit. Every finding is printed with the line that produced it so you can judge whether it matters here. A mod is markdown that instructs an agent; that is exactly why what it instructs is worth reading.

Nothing flagged

None of the 26 patterns this scan looks for appear in this file: no shell pipes, no recursive deletes, no credential paths, no hidden text, no instruction-override or anti-refusal phrasing, no agent-config snooping. That is not a guarantee, it is the absence of the things that are checkable.

.github/instructions/github-actions.instructions.md · 107 lines

How it starts

The opening of the file, as written. The whole thing — 107 lines — stays where its author put it; the contents beside it link to each section on GitHub.

GitHub Actions Workflow Standards

Standards for creating and maintaining CI/CD workflows in this repository. For general GitHub Actions best practices, rely on GitHub Actions documentation.

Project Conventions

Runner and Node.js

  • Runner: ubuntu-latest for all jobs
  • Node.js: Version 24 with npm caching — never use 20 or older (Node.js 20 reached EOL April 2026)
  • Dependencies: npm ci (not npm install)

Permissions

  • Set permissions at workflow level (least privilege)
  • Default: contents: read
  • Add write permissions only when needed (e.g., issues: write for freshness checks)

Triggers

  • PR validation: Trigger on pull_request to main
  • Post-merge: Trigger on push to main
  • Path filters: Use paths: to scope workflows to relevant files
  • Manual: Include workflow_dispatch for on-demand runs
  • Scheduled: Use schedule with cron for periodic checks (e.g., weekly freshness)

Action Versions

  • Pin to major version tags (e.g., @v6), not @main or @latest
  • Use current versions:
Action Version
actions/checkout @v6
actions/setup-node @v6
actions/upload-artifact @v4
actions/download-artifact @v4
actions/cache @v4
actions/github-script @v8
peter-evans/create-pull-request @v8

Naming and Structure

  • Workflow file: Descriptive kebab-case (e.g., ci.yml, weekly-maintenance.yml)
  • Workflow name: Human-readable title
  • Job name: Clear, concise label
  • Step name: Descriptive action (e.g., "Validate agent frontmatter")
  • Start with a comment block describing purpose and trigger conditions

Concurrency

Use concurrency to prevent duplicate runs:

concurrency:
  group: ${{ github.workflow }}-${{ github.ref }}
  cancel-in-progress: true

Read the full file on GitHub · 107 lines

Changes

What this file has done since we first saw it

Hashed on every crawl. A supply-chain change to an agent config is a question of when, not whether, so the history is kept rather than the latest state alone.

  1. yesterday First seen · 107 lines · 1,074 tokens per session scan A acdfee5bc1ae

Subscribe to this mod's changes

apex-accelerator github-actions.instructions.md is an instructions file published in the GitHub repository jonathan-vella/apex-accelerator (50 stars, last pushed 4d ago), licensed MIT. It adds 1,074 tokens to every session, about $0.0054 per session on Opus 5. A static security scan graded it A with 0 findings. No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-30.

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