meteor-blaze

meteor-blaze is a skill for Claude Code from meteor/agent-skills. It costs 155 tokens per session (2,022 once invoked), scanned A, original, MIT.

A guide to Blaze, Meteor's template-based interface system. It covers Spacebars templates, reactive data updates, events, lifecycle hooks, subscriptions, and asynchronous states.

In plain words
What is it for?
Building or debugging Meteor 3 interfaces with Blaze templates, helpers, events, Tracker, ReactiveVar, subscriptions, dynamic templates, and hot reloading.
Why use it?
It helps keep template state, server data, browser effects, and asynchronous work organized so interfaces update and clean up correctly.

Skill for Claude Code

Written for Claude Code: shipped in a Claude Code plugin.

Part of the meteor plugin — 17 skills shipped together

Good fit Building or debugging Meteor 3 interfaces with Blaze templates, helpers, events, Tracker, ReactiveVar, subscriptions, dynamic templates, and hot reloading.

Compare 6 skills from other repositories ↓
Install with agentmods
npx agentmods add skills/meteor/agent-skills/meteor-blaze
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.

Any agent
npx skills add meteor/agent-skills --skill meteor-blaze
Clone the repo
git clone --depth 1 https://github.com/meteor/agent-skills

Made for: Claude Code.

Or install meteor, the plugin that ships this one along with the rest of its 17 skills.

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 meteor-blaze

README.md
[![agentmods](https://agentmods.dev/badge/skills/meteor/agent-skills/meteor-blaze/github.svg)](https://agentmods.dev/skills/meteor/agent-skills/meteor-blaze)
Your own site
<a href="https://agentmods.dev/skills/meteor/agent-skills/meteor-blaze"><img src="https://agentmods.dev/badge/skills/meteor/agent-skills/meteor-blaze/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 meteor-blaze

Your own site · 80×15
<a href="https://agentmods.dev/skills/meteor/agent-skills/meteor-blaze"><img src="https://agentmods.dev/badge/skills/meteor/agent-skills/meteor-blaze.svg" alt="Reviewed on agentmods" width="80" height="20"></a>
Per session 155 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 2,022 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. Third-party audits
  • NVIDIA SkillSpector pass 7 Sept 2026
How audits are shown
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 $0.00155 $0.02022
Opus 5 $0.00077 $0.01011
Sonnet 5 $0.00031 $0.00404
Haiku 4.5 $0.00015 $0.00202

Measured 8d ago against content hash 0481e254c63d, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-08, from the pricing page.

Security

Grade A, and why

meteor-blaze 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 8d 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.

skills/meteor-blaze/SKILL.md · 208 lines

How it starts

The opening of the file, as written. The whole thing — 208 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Blaze interfaces for Meteor 3

Blaze compiles Spacebars templates into JavaScript and updates small View regions when their reactive dependencies invalidate. Keep state, subscriptions, DOM effects, and async work owned by a template instance. Use public Template, Blaze, Spacebars, and Tracker APIs in application code.

Decision flow

  1. For a new app, run meteor create --blaze <name>. Inspect the generated package.json, .meteor/packages, client entry, and rspack.config.js before changing packages or build settings.
  2. Import each template's .html from the JavaScript module that registers its helpers, events, and lifecycle hooks. Import that module from the client entry graph.
  3. Keep synchronous Minimongo reads in ordinary helpers. If a helper returns a Promise, render explicit pending, rejected, and resolved states.
  4. Put ReactiveVar, ReactiveDict, this.autorun, and this.subscribe on the template instance. Put DOM initialization in onRendered and undo external effects in onDestroyed.
  5. Pass named data and callbacks into reusable child templates. Keep publication and mutation authority on the server.
  6. Identify the bundler before diagnosing refresh behavior. blaze-hot can replace templates in the Meteor-bundler graph; Rspack currently performs a full live reload for Blaze. Route general build, migration, database, or test-runner work to the owning skill.

Current scaffold

meteor create --blaze my-app
cd my-app
meteor

Meteor 3.4+ creates Blaze apps with Rspack by default. Earlier Meteor 3 releases may use the Meteor bundler. The current scaffold declares explicit client and server meteor.mainModule entries, imports .html from the client entry, enables the modern build stack, and includes blaze-html-templates, tracker, reactive-var, hot-module-replacement, blaze-hot, and rspack. Treat the generated files for the selected Meteor release as the baseline. Those packages do not enable Blaze HMR in the Rspack graph. Blaze edits there trigger a fast full page reload and reset page-local state. blaze-hot replacement behavior applies when the Meteor bundler owns the module.

Read the full file on GitHub · 208 lines

Files

What ships with it

4 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. 8d ago First seen · 208 lines · 155 tokens per session scan A 0481e254c63d

Subscribe to this mod's changes

meteor-blaze is a skill published in the GitHub repository meteor/agent-skills (7 stars, last pushed 5d ago), licensed MIT. It adds 155 tokens to every session and 2,022 once invoked, about $0.0008 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.

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