ensemble-release

ensemble-release is a skill for Claude Code, Codex from FortiumPartners/ensemble. It costs 27 tokens per session (1,912 once invoked), scanned A, original, MIT.

A release workflow that coordinates checks, smoke tests, deployment, verification, and rollback. It supports standard releases, urgent fixes, and rollbacks using versioned release branches.

In plain words
What is it for?
Use it to validate a semantic version, choose a release type and branch, run quality and smoke-test gates, deploy, verify the result, and roll back when necessary.
Why use it?
It organizes the steps and specialist checks needed to release changes safely and catch problems before or after deployment.

Skill for Claude CodeCodex

Written for Claude Code and Codex: user-invocable in frontmatter, but also installed under .codex/. Also seen: mentions Codex.

Part of the ensemble-codex plugin — 40 skills shipped together

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.

agentmods
npx agentmods add skills/fortiumpartners/ensemble/ensemble-release
Any agent
npx skills add FortiumPartners/ensemble --skill ensemble-release
Clone the repo
git clone --depth 1 https://github.com/FortiumPartners/ensemble

Made for: Claude Code, Codex.

Or install ensemble-codex, the plugin that ships this one along with the rest of its 40 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 ensemble-release

README.md
[![agentmods](https://agentmods.dev/badge/skills/fortiumpartners/ensemble/ensemble-release.svg)](https://agentmods.dev/skills/fortiumpartners/ensemble/ensemble-release)
Your own site
<a href="https://agentmods.dev/skills/fortiumpartners/ensemble/ensemble-release"><img src="https://agentmods.dev/badge/skills/fortiumpartners/ensemble/ensemble-release.svg" alt="Measured on agentmods" height="20"></a>
Per session 27 Skills are progressive disclosure: only the name and description are preloaded; the body loads when the skill is used.
When invoked 1,912 The whole file, excluding the scripts and references it only reads on demand.
Security scan A 0 findings. Scan, not verified.
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 $0.00027 $0.01912
Opus 5 $0.00014 $0.00956
Sonnet 5 $0.00005 $0.00382
Haiku 4.5 $0.00003 $0.00191

Measured 6d ago against content hash fed232ac1009, method: parsed. Prices are Anthropic first-party input rates as of 2026-09-06, from the pricing page.

Security

Grade A, and why

ensemble-release 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 6d 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.

packages/codex/.codex/skills/commands/ensemble-release/SKILL.md · 292 lines

How it starts

The opening of the file, as written. The whole thing — 292 lines — stays where its author put it; the contents beside it link to each section on GitHub.

Ensemble Command: /ensemble:release

This Codex skill mirrors the Ensemble slash command /ensemble:release. Follow the workflow below, adapt to the current repository, and keep outputs structured.

This command orchestrates the complete release workflow from quality gates through deployment and verification. It delegates to release-agent for workflow orchestration, coordinating with specialized agents (code-reviewer, test-runner, playwright-tester, deployment-orchestrator) to ensure safe, reliable releases with comprehensive smoke test coverage and automated rollback.

Workflow

Phase 1: Release Initialization

1. Version Validation Validate semantic version format (X.Y.Z)

  • Parse --version argument
  • Validate semantic versioning format
  • Check for version conflicts (tag/branch exists)

2. Release Type Validation Validate release type and workflow selection

  • Parse --type argument (standard, hotfix, rollback)
  • Determine base branch (main, develop, production)
  • Determine target branch (release/vX.Y.Z, hotfix/vX.Y.Z)
  • Validate branch arguments if provided

3. Release Branch Creation Create release branch via git-workflow

  • Create release branch from base
  • Push to remote
  • Verify branch created successfully

Delegation: @git-workflow Base and target branches, release version

4. Changelog Generation Generate changelog from git history

  • Parse commits since last release
  • Categorize changes (breaking, new, enhancement, bugfix)
  • Generate markdown formatted changelog
  • Add changelog to release branch

Phase 2: Quality Gates

1. Security Scan Execute security vulnerability scan via code-reviewer

  • Scan for OWASP Top 10 vulnerabilities
  • Check for critical and high-severity issues
  • Generate security report
  • Block on critical/high issues

Read the full file on GitHub · 292 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. 6d ago First seen · 292 lines · 27 tokens per session scan A fed232ac1009

Subscribe to this mod's changes

ensemble-release is a skill published in the GitHub repository FortiumPartners/ensemble (11 stars, last pushed 1mo ago), licensed MIT. It adds 27 tokens to every session and 1,912 once invoked, about $0.0001 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 2026-08-30.

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