zyrax-guard: Skill for Claude Code

.agents/skills/production-readiness/SKILL.md

production-readiness is a skill for Claude Code, Codex from tiagosilva07/zyrax-guard. It costs 71 tokens per session (612 once invoked), scanned A, original, MIT.

A checklist for deciding whether code is ready to run for real users. It reviews correctness, failures, security, logging, monitoring, and the ability to handle load.

In plain words
What is it for?
Use it before deploying, opening a pull request for live traffic, finishing a feature, or asking whether code is production-ready. It applies to Go, React or TypeScript, and C#/.NET projects.
Why use it?
Code can work in a developer's environment while still failing on unusual input, hiding errors, exposing secrets, or breaking under traffic. The checklist makes these risks visible before release.

Skill for Claude CodeCodex

Written for no agent in particular: nothing here depends on one. Also seen: installed under .agents/ (shared by several agents).

This is tiagosilva07/zyrax-guard's own configuration. It tells Claude Code and Codex how to work on zyrax-guard itself, so it is not a mod to install elsewhere. Copy it as a starting point and replace the rules that are about this project. Everything zyrax-guard configures →

Reuse

Borrowing it

Nothing to install: this file belongs to tiagosilva07/zyrax-guard. Take a copy, put it at the same path in your own repository, and replace the rules that are about this project with yours.

Copy the file
curl -O https://raw.githubusercontent.com/tiagosilva07/zyrax-guard/main/.agents/skills/production-readiness/SKILL.md
Clone the repo
git clone --depth 1 https://github.com/tiagosilva07/zyrax-guard

Made for: Claude Code, Codex.

Wrote this? Show the measurements

A badge with what this costs and how it scanned, read live from this page, so it follows the numbers instead of freezing them. Markdown for a README, HTML for a documentation site or a project page.

agentmods badge for production-readiness

README.md
[![agentmods](https://agentmods.dev/badge/skills/tiagosilva07/zyrax-guard/production-readiness/github.svg)](https://agentmods.dev/skills/tiagosilva07/zyrax-guard/production-readiness)
Your own site
<a href="https://agentmods.dev/skills/tiagosilva07/zyrax-guard/production-readiness"><img src="https://agentmods.dev/badge/skills/tiagosilva07/zyrax-guard/production-readiness/github.svg" alt="Measured on agentmods" height="20"></a>

Or the 80×15 button, for a site that already has a row of RSS and ATOM ones. Only the verdict fits; the numbers stay here.

agentmods 80×15 button for production-readiness

Your own site · 80×15
<a href="https://agentmods.dev/skills/tiagosilva07/zyrax-guard/production-readiness"><img src="https://agentmods.dev/badge/skills/tiagosilva07/zyrax-guard/production-readiness.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 71 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 612 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. A grade says what 26 rules found in the file — not that it is safe.
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 5.1 $0.00071 $0.00612
Opus 5 $0.00036 $0.00306
Sonnet 5 $0.00014 $0.00122
Haiku 4.5 $0.00007 $0.00061

Measured 11d ago against content hash 3581999cff99, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

production-readiness 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 11d ago.

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.

.agents/skills/production-readiness/SKILL.md · 60 lines

How it starts

The opening of the file, as written. The whole thing — 60 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Production-readiness gate

Run this before code reaches real users. Anything unchecked is a conscious risk someone has to accept — not an oversight.

Correctness

  • Tests cover the new logic, including the failure paths — and they pass.
  • Build is clean (no warnings treated as acceptable noise).
  • Edge cases handled: empty, null/nil, very large, concurrent, boundary values.
  • No debug code, dead code, or commented-out blocks left behind.

Error handling

  • Errors are handled or propagated with context — never silently swallowed.
  • User-facing failures are graceful and recoverable; no raw stack traces shown.
  • External calls (DB, network, third party) have timeouts and a failure path.
  • Retries are bounded and idempotent where used.

Security

  • No secrets in code, logs, or client bundles.
  • All external input validated; queries parameterized.
  • AuthN/AuthZ checks on every protected path.
  • (If sensitive surface) ran the security-auditor.

Observability

  • Structured logs at the right level — enough to debug an incident, not so much they leak data or drown signal.
  • Key metrics emitted (latency, error rate, throughput on hot paths).
  • Health/readiness endpoints exist (services).

Performance & scale

  • No obvious N+1 queries or unbounded loops on hot paths.
  • Pagination/limits on anything that can grow unbounded.
  • (If hot path under load) baseline measured; see the perf-optimizer.

Operability

  • Config via env/secret manager, not hardcoded.
  • Graceful shutdown handled.
  • Rollback path exists and is known.
  • DB migrations are backward-compatible (can roll back without data loss).

Stack quick-hits

  • Go: go vet + -race clean on concurrent code; contexts plumbed through; errors wrapped.
  • React/TS: loading/empty/error states present; no any without justification; bundle size sane.
  • C#/.NET: no sync-over-async; IDisposable honored; nullable warnings addressed.

Read the full file on GitHub · 60 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. 11d ago First seen · 60 lines · 71 tokens per session scan A 3581999cff99

Subscribe to this mod's changes

production-readiness is a skill published in the GitHub repository tiagosilva07/zyrax-guard (2 stars, last pushed 1mo ago), licensed MIT. It adds 71 tokens to every session and 612 once invoked, about $0.0004 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 2026-08-31.