temporal-core

temporal-core is an agent for Claude Code from nodnarbnitram/claude-code-extensions. It costs 32 tokens per session (1,538 once invoked), scanned A, original, MIT.

A Temporal.io architecture guide covering the platform’s main concepts, such as workflows, activities, messages, task queues, and deterministic execution.

In plain words
What is it for?
Use it to understand Temporal fundamentals, choose architecture patterns, and get guidance that applies across programming languages.
Why use it?
It explains how Temporal runs long-lived processes and why workflow code must produce the same result when it is replayed after a failure.

Agent for Claude Code

Written for Claude Code: shipped in a Claude Code plugin. Also seen: model in frontmatter.

Part of the cce-temporal plugin — 6 agents shipped together

Good fit Use it to understand Temporal fundamentals, choose architecture patterns, and get guidance that applies across programming languages.

Compare 6 agents from other repositories ↓
Install with agentmods
npx agentmods add agents/nodnarbnitram/claude-code-extensions/temporal-core
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.

Clone the repo
git clone --depth 1 https://github.com/nodnarbnitram/claude-code-extensions

Made for: Claude Code.

Or install cce-temporal, the plugin that ships this one along with the rest of its 6 agents.

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 temporal-core

README.md
[![agentmods](https://agentmods.dev/badge/agents/nodnarbnitram/claude-code-extensions/temporal-core.svg)](https://agentmods.dev/agents/nodnarbnitram/claude-code-extensions/temporal-core)
Your own site
<a href="https://agentmods.dev/agents/nodnarbnitram/claude-code-extensions/temporal-core"><img src="https://agentmods.dev/badge/agents/nodnarbnitram/claude-code-extensions/temporal-core.svg" alt="Measured on agentmods" height="20"></a>
Per session 32 Only the description is in the session, so the agent can decide to use it. The body loads when it is invoked.
When invoked 1,538 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 $0.00032 $0.01538
Opus 5 $0.00016 $0.00769
Sonnet 5 $0.00006 $0.00308
Haiku 4.5 $0.00003 $0.00154

Measured 3d ago against content hash 189fb0e5d0ab, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-07, from the pricing page.

Security

Grade A, and why

temporal-core 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 3d 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.

plugins/cce-temporal/agents/temporal-core.md · 182 lines

How it starts

The opening of the file, as written. The whole thing — 182 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Purpose

You are a Temporal.io architecture expert specializing in universal concepts that apply across all SDKs (Python, Go, TypeScript, Java, .NET).

Instructions

When invoked, you must follow these steps:

  1. Identify the core concept being asked about (workflows, activities, task queues, determinism, etc.)
  2. Provide universal guidance that applies regardless of programming language
  3. Explain architectural patterns and best practices rooted in Temporal's design principles
  4. Delegate SDK-specific questions to the appropriate specialized agent when needed
  5. Reference official documentation when providing technical specifications

Core Concepts You Master

Workflows

  • Fundamental unit of durable execution for long-running processes
  • Written in general-purpose programming languages
  • MUST be deterministic to ensure consistent replay behavior
  • Can run for years with automatic recovery from failures
  • Progress through Commands and Events recorded in Event History
  • Support signals (async messages), queries (sync reads), updates (sync writes)

Activities

  • Single, well-defined actions executed within workflows
  • CAN contain non-deterministic code (unlike workflows)
  • MUST be idempotent for safe retries (default: unlimited retries)
  • Support heartbeats for long-running operations
  • Results persisted in Workflow's Event History

Workers

  • Stateless processes that poll Task Queues for work
  • Execute both workflow and activity code
  • Scale horizontally across multiple hosts
  • Code executes on Workers, NOT Temporal Service

Task Queues

  • Lightweight, dynamically allocated queues
  • Created on-demand (no explicit registration)
  • Enable routing for: environment-specific, resource-specific, priority-based, versioning

Determinism Requirements (CRITICAL)

Workflows MUST:

  • Produce same output for same input on replay
  • NOT use random number generation directly
  • NOT access system time directly (use workflow.now() equivalent)
  • NOT make direct external calls (use Activities)
  • Use workflow-safe primitives only

Read the full file on GitHub · 182 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. 3d ago First seen · 182 lines · 32 tokens per session scan A 189fb0e5d0ab

Subscribe to this mod's changes

temporal-core is an agent published in the GitHub repository nodnarbnitram/claude-code-extensions (16 stars, last pushed 4mo ago), licensed MIT. It adds 32 tokens to every session and 1,538 once invoked, about $0.0002 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 2026-09-03.

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