upgrade-zymtrace-backend

upgrade-zymtrace-backend is a skill for Claude Code from zystem-io/zymtrace-skills. It costs 143 tokens per session (4,204 once invoked), scanned A, original, Apache-2.0.

An upgrade guide for an already-installed zymtrace backend running through Helm, a Kubernetes package manager.

In plain words
What is it for?
Use it for image-only, chart-only, or combined zymtrace upgrades, including migrations and post-upgrade checks.
Why use it?
It helps update service images, charts, and database schemas while preserving configuration and providing rollback steps if the upgrade fails.

Skill for Claude Code

Written for Claude Code: ${CLAUDE_PLUGIN_ROOT} variable. Also seen: positional $N argument.

Runs only inside its plugin — its command needs a path that Claude Code sets for a plugin’s own hooks and for nothing else. Install the plugin, not this.

Part of the zymtrace plugin — 10 skills, 1 agent shipped together

Good fit Use it for image-only, chart-only, or combined zymtrace upgrades, including migrations and post-upgrade checks.

Compare 6 skills from other repositories ↓
Install

Getting it into your agent

This one installs as part of its plugin. Adding the marketplace and installing the plugin brings it with everything else the plugin ships.

Claude Code
/plugin marketplace add zystem-io/zymtrace-skills
Claude Code
/plugin install zymtrace

Made for: Claude Code.

Or install zymtrace, the plugin that ships this one along with the rest of its 10 skills, 1 agent.

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 upgrade-zymtrace-backend

README.md
[![agentmods](https://agentmods.dev/badge/skills/zystem-io/zymtrace-skills/upgrade-zymtrace-backend/github.svg)](https://agentmods.dev/skills/zystem-io/zymtrace-skills/upgrade-zymtrace-backend)
Your own site
<a href="https://agentmods.dev/skills/zystem-io/zymtrace-skills/upgrade-zymtrace-backend"><img src="https://agentmods.dev/badge/skills/zystem-io/zymtrace-skills/upgrade-zymtrace-backend/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 upgrade-zymtrace-backend

Your own site · 80×15
<a href="https://agentmods.dev/skills/zystem-io/zymtrace-skills/upgrade-zymtrace-backend"><img src="https://agentmods.dev/badge/skills/zystem-io/zymtrace-skills/upgrade-zymtrace-backend.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 143 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 4,204 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 1 finding. 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 $0.00143 $0.04204
Opus 5 $0.00072 $0.02102
Sonnet 5 $0.00029 $0.00841
Haiku 4.5 $0.00014 $0.00420

Measured 11d ago against content hash da9046596d6b, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-11, from the pricing page.

Security

Grade A, and why

upgrade-zymtrace-backend scanned grade A with 1 finding 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.

The scan reads SKILL.md. This mod also ships 1 executable file (scripts/preflight-upgrade.sh), listed below but not scanned — reading those needs a real analyzer, not pattern matching.

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.

Makes network callslowCapability

Not a fault in itself. Listed so you know the mod talks to something, and to what.

- [ ] Gateway responds: `curl -fsI http://<host>` returns 2xx/3xx/4xx (not 5xx / connection-refused / timeout).
zymtrace/skills/upgrade-zymtrace-backend/SKILL.md · 272 lines

How it starts

The opening of the file, as written. The whole thing — 272 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Upgrade zymtrace Backend

Helps the user upgrade an already-installed zymtrace backend. Three paths:

Path What changes When to use
A. Image-only bump services.common.imageTag (and pulled image) Apply a patch/hotfix on the same chart. Lowest risk.
B. Chart version bump Helm chart version + templates + defaults New chart features, schema additions, new config keys.
C. Combined Chart + image together The common case for moving between zymtrace minor/major releases.

Deep details (backup, rollback, schema migrations, the migrate job) live in ${CLAUDE_PLUGIN_ROOT}/skills/upgrade-zymtrace-backend/reference.md.

Fresh install? Use the install-zymtrace-backend skill instead.

Sources of truth

Pre-flight: verify the tools

Claude runs
helm version --short && kubectl version --client
kubectl cluster-info | head -2
helm list -A | grep -i zymtrace

If helm/kubectl are missing → point to install docs; do not install for them. If helm list -A | grep -i zymtrace shows no zymtrace release → wrong skill, route to install-zymtrace-backend.

Check for a customer-provided values file

Before any chart-version bump (Path B / C), ask:

Do you have the values file Zymtrace originally sent you (often named custom-values.yaml, backend-values.yaml, or <company>-values.yaml)?

If yes → use that file directly with helm upgrade --install ... -f <their-file>. Read it first to confirm it matches what's currently deployed (helm get values <REL> -n <NS>).

Read the full file on GitHub · 272 lines

Files

What ships with it

2 files beside SKILL.md in the same directory: the scripts, references and assets a skill reads on demand. Not counted in the per-session cost; read them before you install if any of them is executable.

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 · 272 lines · 143 tokens per session scan A da9046596d6b

Subscribe to this mod's changes

upgrade-zymtrace-backend is a skill published in the GitHub repository zystem-io/zymtrace-skills (5 stars, last pushed 28d ago), licensed Apache-2.0. It adds 143 tokens to every session and 4,204 once invoked, about $0.0007 per session on Opus 5. A static security scan graded it A with 1 finding (makes network calls). No closer match exists in the catalogue, so it is treated as the original; first seen 2026-08-31.

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