Terravision Cloud Diagrams
patrickchugh/terravision
Draw cloud architecture diagrams for AWS, Azure or GCP with the official provider icon sets, using TerraVision.
ANALYSIS SKILL — The agent-first operating principles governing how agents work in this repository.
Install Apex Golden Principles
$ npx skills add jonathan-vella/apex --skill apex-golden-principles -a claude-codeProject install by default; add -g for ~/.claude/skills/.
$ gh skill install jonathan-vella/apex apex-golden-principles --agent claude-codeProject scope by default; add --scope user for a personal install. Needs GitHub CLI 2.90.0 or later (public preview).
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .claude/skills && cp -r skills-src/.github/skills/apex-golden-principles .claude/skills/apex-golden-principles && rm -rf skills-srcUse ~/.claude/skills/ instead of .claude/skills for a personal install. The folder must contain SKILL.md.
Claude Code skills documentation · loads skills from .claude/skills/
Install the "apex-golden-principles" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-golden-principles into .claude/skills/apex-golden-principles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-golden-principles", then confirm the skill loads.Claude Code copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$skill-installer install https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-golden-principlesType this inside Codex. $skill-installer <name> installs a curated skill from openai/skills. The installer writes to $CODEX_HOME/skills (default ~/.codex/skills). Restart Codex if the skill does not show up.
$ npx skills add jonathan-vella/apex --skill apex-golden-principles -a codexProject install goes to .agents/skills/; add -g for ~/.codex/skills/.
$ gh skill install jonathan-vella/apex apex-golden-principles --agent codexProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .agents/skills && cp -r skills-src/.github/skills/apex-golden-principles .agents/skills/apex-golden-principles && rm -rf skills-srcUse ~/.agents/skills/ instead of .agents/skills for a personal install.
Codex skills documentation · loads skills from .agents/skills/
Install the "apex-golden-principles" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-golden-principles into .agents/skills/apex-golden-principles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-golden-principles", then confirm the skill loads.Codex copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jonathan-vella/apex --skill apex-golden-principles -a cursorProject install goes to .agents/skills/; add -g for ~/.cursor/skills/.
$ gh skill install jonathan-vella/apex apex-golden-principles --agent cursorProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .cursor/skills && cp -r skills-src/.github/skills/apex-golden-principles .cursor/skills/apex-golden-principles && rm -rf skills-srcUse ~/.cursor/skills/ instead of .cursor/skills for a personal install.
Cursor skills documentation · loads skills from .cursor/skills/, .agents/skills/, .claude/skills/, .codex/skills/
Install the "apex-golden-principles" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-golden-principles into .cursor/skills/apex-golden-principles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-golden-principles", then confirm the skill loads.Cursor copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gemini skills install https://github.com/jonathan-vella/apex.git --path .github/skills/apex-golden-principles--scope user (default) or --scope workspace; --path is the subfolder of the repo that holds the skill; --consent skips the security confirmation prompt.
$ npx skills add jonathan-vella/apex --skill apex-golden-principles -a gemini-cliProject install goes to .agents/skills/; add -g for ~/.gemini/skills/.
$ gh skill install jonathan-vella/apex apex-golden-principles --agent gemini-cliProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .gemini/skills && cp -r skills-src/.github/skills/apex-golden-principles .gemini/skills/apex-golden-principles && rm -rf skills-srcUse ~/.gemini/skills/ instead of .gemini/skills for a personal install, then run /skills reload.
Gemini CLI skills documentation · loads skills from .gemini/skills/, .agents/skills/
Install the "apex-golden-principles" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-golden-principles into .gemini/skills/apex-golden-principles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-golden-principles", then confirm the skill loads.Gemini CLI copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ gh skill install jonathan-vella/apex apex-golden-principlesInstalls for Copilot at project scope by default; add --scope user for a personal install. Preview a skill first with gh skill preview. Needs GitHub CLI 2.90.0 or later (public preview).
$ npx skills add jonathan-vella/apex --skill apex-golden-principles -a github-copilotProject install goes to .agents/skills/; add -g for ~/.copilot/skills/.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .github/skills && cp -r skills-src/.github/skills/apex-golden-principles .github/skills/apex-golden-principles && rm -rf skills-srcUse ~/.copilot/skills/ instead of .github/skills for a personal install. Commit .github/skills so cloud agent and code review can use it.
GitHub Copilot skills documentation · loads skills from .github/skills/, .claude/skills/, .agents/skills/
Install the "apex-golden-principles" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-golden-principles into .github/skills/apex-golden-principles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-golden-principles", then confirm the skill loads.GitHub Copilot copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
$ npx skills add jonathan-vella/apex --skill apex-golden-principles -a opencodeOpenCode documents no install command of its own. Project install goes to .agents/skills/; add -g for ~/.config/opencode/skills/.
$ gh skill install jonathan-vella/apex apex-golden-principles --agent opencodeProject scope by default (.agents/skills/); add --scope user for a personal install.
$ git clone --depth 1 https://github.com/jonathan-vella/apex.git skills-src && mkdir -p .opencode/skills && cp -r skills-src/.github/skills/apex-golden-principles .opencode/skills/apex-golden-principles && rm -rf skills-srcUse ~/.config/opencode/skills/ instead of .opencode/skills for a personal install.
OpenCode skills documentation · loads skills from .opencode/skills/, .claude/skills/, .agents/skills/
Install the "apex-golden-principles" agent skill from https://github.com/jonathan-vella/apex/tree/main/.github/skills/apex-golden-principles into .opencode/skills/apex-golden-principles/ in this project. Copy the whole folder (SKILL.md and every file beside it), keep the folder name "apex-golden-principles", then confirm the skill loads.OpenCode copies the folder itself, the same result as the manual copy. Check what it changed before you commit it.
Facts
- Skill name
apex-golden-principles- GitHub stars
- 217
- Token cost
- ~927 tokens
- SKILL.md length
- 370 words
- Files
- 2 (incl. references)
- Skills in repo
- 39
- Repo updated
- First seen
- Licence
- MIT
At a glance
ANALYSIS SKILL — The agent-first operating principles governing how agents work in this repository.
- Works in 12 steps: Repository Is the System of Record — all… → Map, Not Manual — instructions point to… → Enforce Invariants, Not Implementations… → …
- : agent behavior rules
- SKILL.md covers Rules, Steps, Principle Details and Reference Index
- Instructions only: no scripts, shell commands, URLs or credentials in SKILL.md
What it does
Apex Golden Principles is an agent skill from jonathan-vella/apex. ANALYSIS SKILL — The agent-first operating principles governing how agents work in this repository. WHEN: "golden principles", "agent behavior rules", "operating philosophy", "principle lookup", "governance invariants". USE FOR: agent behavior rules, operating philosophy, principle lookup, governance invariants. DO NOT USE FOR: Azure infrastructure, code generation, troubleshooting, diagram creation.
Its SKILL.md is about 930 tokens, which your agent loads only when the skill is triggered. The skill folder holds 2 other files, including reference files (for example `references/principles.md`).
It sits in DevOps & Cloud. It works with Microsoft Azure. The repository describes itself as: APEX turns Azure platform engineering requirements into verified, deploy-ready IaC — powered by GitHub Copilot agents, real-time pricing, and built-in compliance. The licence is MIT.
When your agent uses it
- : agent behavior rules
- Operating philosophy
- Principle lookup
- Governance invariants
Example prompts
- “golden principles”
- “agent behavior rules”
- “operating philosophy”
- “/apex-golden-principles”
Workflow steps
12 steps, taken from the first numbered list in SKILL.md.
- Repository Is the System of Record — all context lives in-repo
- Map, Not Manual — instructions point to deeper sources
- Enforce Invariants, Not Implementations — set boundaries, allow autonomous expression
- Parse at Boundaries — validate inputs and outputs at module edges
- AVM-First, Security Baseline Always — prefer Azure Verified Modules + non-negotiable security baseline
- Golden Path Pattern — prefer shared utilities over hand-rolled helpers
- Human Taste Gets Encoded — turn reviewed feedback into durable guidance
- Context Is Scarce — reuse current context and recover missing required evidence
- Progressive Disclosure — load detail when needed without hiding essential rules
- Mechanical Enforcement Over Documentation — validate deterministic invariants
- Composable Workflows — bounded steps with explicit ownership and prerequisites
- Human Approval at Critical Gates — approvals remain evidence-bound and human-controlled
What it can do on your machine
Read from SKILL.md and the folder at commit b8e5908. It shows what the files ask for, not the result of running them.
Tool permissions
Pre-approves nothing: there is no allowed-tools line, so your agent's usual permission prompts apply.
From allowed-tools in the SKILL.md frontmatter.
Runs code
No scripts in the folder and no shell commands in SKILL.md.
From the folder's file list and the shell code blocks in SKILL.md.
Network
No URLs in SKILL.md.
From URLs in SKILL.md, links to its own repository left out.
Credentials
Names no API keys, tokens, secrets or passwords.
From names ending in _API_KEY, _TOKEN, _SECRET, _KEY or _PASSWORD in SKILL.md.
Context cost
Apex Golden Principles loads about 927 tokens when it runs, and up to ~3.1k if it reads all its reference files. Until then it costs about 108 tokens; SKILL.md has 370 words of instructions outside code blocks.
Estimates: characters ÷ 4, the usual rule of thumb; real counts depend on the model's tokenizer. Scripts and assets cost tokens only if the agent reads them.
Safety
Auto-check passed
The automated check found no risky patterns in SKILL.md.
Automated static check — not a guarantee. Review scripts before installing. It scans the text of SKILL.md for risky patterns (piping downloads into a shell, reading credential files, hidden Unicode, destructive commands); files beside SKILL.md are not scanned.
SKILL.md
The full file from jonathan-vella/apex at commit b8e5908, republished under its MIT licence (© jonathan-vella). 370 words, ~927 tokens.
Download SKILL.mdSave it as
.claude/skills/apex-golden-principles/SKILL.md (or your agent's skills folder). This skill also uses 1 other file; get the full folder from GitHub.- name
- apex-golden-principles
- description
- **ANALYSIS SKILL** — The agent-first operating principles governing how agents work in this repository. WHEN: "golden principles", "agent behavior rules", "operating philosophy", "principle lookup", "governance invariants". USE FOR: agent behavior rules, operating philosophy, principle lookup, governance invariants. DO NOT USE FOR: Azure infrastructure, code generation, troubleshooting, diagram creation.
- user-invocable
- false
- disable-model-invocation
- false
Golden Principles
These principles govern how every agent operates in this repository. They are adapted from the Harness Engineering philosophy for agent-driven infrastructure development.
Rules
The canonical rules and preservation map live in Principle Details. This index is a summary, not a competing policy source.
- Repository Is the System of Record — all context lives in-repo
- Map, Not Manual — instructions point to deeper sources
- Enforce Invariants, Not Implementations — set boundaries, allow autonomous expression
- Parse at Boundaries — validate inputs and outputs at module edges
- AVM-First, Security Baseline Always — prefer Azure Verified Modules + non-negotiable security baseline
- Golden Path Pattern — prefer shared utilities over hand-rolled helpers
- Human Taste Gets Encoded — turn reviewed feedback into durable guidance
- Context Is Scarce — reuse current context and recover missing required evidence
- Progressive Disclosure — load detail when needed without hiding essential rules
- Mechanical Enforcement Over Documentation — validate deterministic invariants
- Composable Workflows — bounded steps with explicit ownership and prerequisites
- Human Approval at Critical Gates — approvals remain evidence-bound and human-controlled
- Adversarial Review — independent review follows the current graph and role contracts
- Continuous Lessons — capture process observations and feed them back into the system
Show full SKILL.md (174 more words)Show less
Steps
Applying the principles to a new agent or skill:
- Read the canonical principles before applying this decision framework
- For each design decision, ask which principles apply (typically 2–3 will dominate)
- Run the per-principle test listed in Principle Details
- Where a principle conflicts with an implementation choice, change the implementation — principles are non-negotiable
- Document proposed deviations in an ADR; an ADR does not authorize relaxing safety or approval gates
Principle Details
Each principle has a non-negotiable rule and a quick test for compliance. The
canonical detail (full text + per-principle tests + the "How to Apply These
Principles" section for agents, contributors, and code review) lives in
references/principles.md. The summary list above
is a one-line index; for any decision-making use, load the reference. The
reference is canonical. Sync this index after an approved reference change;
never silently remove unique rules or treat prose as permission to bypass a gate.
Reference Index
| Reference | When to Load |
|---|---|
references/principles.md | Applying a principle to a specific design or implementation decision; running the per-principle compliance test |
© jonathan-vella, MIT. Rendered from Markdown: HTML in the file is shown as text, images as links, and headings moved down two levels. Raw file
Files
SKILL.md and 1 other file (references) in .github/skills/apex-golden-principles of jonathan-vella/apex.
- SKILL.md
- references/principles.md
Open the folder on GitHubat commit b8e5908
Compare with similar skills
Apex Golden Principles next to the 5 skills that share the most tags, products or categories with it. Stars are the repository's; “used in” counts other GitHub owners with a copy.
| Skill | Stars | Used in | Tokens | Auto-check | Licence | Repo updated |
|---|---|---|---|---|---|---|
| Apex Golden Principles this skilljonathan-vella/apex | 217 | — | ~927 | Automated safety check: Pass | MIT | |
| Terravision Cloud Diagramspatrickchugh/terravision | 1.6k | — | ~5.6k | Automated safety check: Notes | AGPL-3.0-only | |
| Aspiremicrosoft/aspire.dev | 195 | 4 repos | ~1.1k | Automated safety check: Pass | MIT | |
| Provider Bug Reviewmondoohq/mql | 412 | — | ~2.9k | Automated safety check: Pass | Custom licence | |
| Ama Logs Update Charts Release Notesmicrosoft/Docker-Provider | 174 | — | ~2.6k | Automated safety check: Pass | Custom licence | |
| Update Provider Depsmondoohq/mql | 412 | — | ~4.5k | Automated safety check: Pass | Custom licence |
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Deep static code review of an mql provider for logic errors, nil-handling bugs, pagination truncation, caching/id collisions, and other defects that silently give users wrong data.
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Ama Logs Update Charts Release Notes
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Prepare an ama-logs release PR: bump the image tag (X.Y.Z) across Helm charts, manifests, and Dockerfiles, and add a formatted ReleaseNotes.md entry.
Update Provider Deps
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Upgrade an mql provider's vendored SDKs (all providers or a named subset), audit the new versions for breaking changes and fix call sites while keeping shipped MQL fields backwards-compatible, check…
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Related
Works with
Categories
Questions about Apex Golden Principles
What does Apex Golden Principles do?
ANALYSIS SKILL — The agent-first operating principles governing how agents work in this repository. Apex Golden Principles is an agent skill from jonathan-vella/apex. ANALYSIS SKILL — The agent-first operating principles governing how agents work in this repository.
When should I use Apex Golden Principles?
Apex Golden Principles fits situations like: : agent behavior rules; operating philosophy; principle lookup; governance invariants.
How do I install Apex Golden Principles in Claude Code?
Run `npx skills add jonathan-vella/apex --skill apex-golden-principles -a claude-code`. Or copy the skill folder (.github/skills/apex-golden-principles in jonathan-vella/apex) into .claude/skills/apex-golden-principles in your project. Claude Code loads it when a task matches its description.
How do I install Apex Golden Principles in Codex?
Run `npx skills add jonathan-vella/apex --skill apex-golden-principles -a codex`. Or copy the skill folder (.github/skills/apex-golden-principles in jonathan-vella/apex) into .agents/skills/apex-golden-principles in your project. Codex loads it when a task matches its description.
Can I use Apex Golden Principles in Cursor, Gemini CLI or GitHub Copilot?
Cursor, Gemini CLI, GitHub Copilot and OpenCode also load SKILL.md folders. With the skills CLI, run `npx skills add jonathan-vella/apex --skill apex-golden-principles -a cursor` (or -a gemini-cli, github-copilot or opencode for the others). To copy it by hand, put the folder in .cursor/skills/apex-golden-principles, .gemini/skills/apex-golden-principles, .github/skills/apex-golden-principles and .opencode/skills/apex-golden-principles in your project.
What does Apex Golden Principles need to run?
SKILL.md names no scripts, command-line tools or credentials: Apex Golden Principles is instructions for the agent only.
Does Apex Golden Principles access the network?
SKILL.md contains no URLs. Any network use would come from the scripts or tools the agent runs. This is read from the text; nothing was executed.
Is Apex Golden Principles safe to install?
Our automated static check of SKILL.md found no risky patterns, such as piping downloads into a shell, reading credential files or hidden Unicode. It is not a guarantee. Review the folder before installing.
What licence does Apex Golden Principles use?
Apex Golden Principles is published under the MIT licence (the repository's licence). It allows redistribution, so the full SKILL.md is shown on this page.
How many tokens does Apex Golden Principles use?
About 927 tokens (SKILL.md is roughly 3.7k characters). Agents keep only the skill's name and description in context until a task matches; then they load SKILL.md in full. Its references folder adds about 2.2k tokens, read only when the agent opens those files.
What are the alternatives to Apex Golden Principles?
Skills that share tags, products or a category with Apex Golden Principles: Terravision Cloud Diagrams (patrickchugh/terravision, 1.6k stars), Aspire (microsoft/aspire.dev, 195 stars), Provider Bug Review (mondoohq/mql, 412 stars) and Ama Logs Update Charts Release Notes (microsoft/Docker-Provider, 174 stars). The comparison table on this page puts their stars, adoption, token cost, safety result and licence side by side.
Who maintains Apex Golden Principles?
jonathan-vella (a GitHub user) maintains it in jonathan-vella/apex, which has 217 GitHub stars. The repository holds 39 skills in this directory. The repository was last updated on October 10, 2026.
Source: jonathan-vella/apex on GitHub. Facts on this page come from the repository at the commit we read; the author's words are quoted as theirs.