agentmods.dev

stage-manager

stage-manager is a plugin for Claude Code from mnfst-ai/Stage_Manager_Skills. Its manifest loads nothing; the 16 skills it bundles cost 2,150 tokens per session together, scanned A, original, MIT.

A set of 16 skills for planning and preparing software ideas before and during coding. It helps shape specifications, check assumptions, write briefs, and organise implementation work.

In plain words
What is it for?
Use it to review a product specification, test a premise, divide work into smaller parts, prepare coding prompts, and record decisions during a project.
Why use it?
It helps find gaps, risks, and unclear decisions before they create rework. It also gives a structured way to test whether an idea is worth building.

Plugin for Claude Code

not rated 5 2mo ago A scan tokens not measured original MIT
View the source file mnfst-ai/Stage_Manager_Skills
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.

Claude Code
/plugin marketplace add mnfst-ai/Stage_Manager_Skills
agentmods
npx agentmods add plugins/mnfst-ai/stage_manager_skills/stage-manager
Clone the repo
git clone --depth 1 https://github.com/mnfst-ai/Stage_Manager_Skills

Made for: Claude Code.

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 stage-manager

README.md
[![agentmods](https://agentmods.dev/badge/plugins/mnfst-ai/stage_manager_skills/stage-manager.svg)](https://agentmods.dev/plugins/mnfst-ai/stage_manager_skills/stage-manager)
Your own site
<a href="https://agentmods.dev/plugins/mnfst-ai/stage_manager_skills/stage-manager"><img src="https://agentmods.dev/badge/plugins/mnfst-ai/stage_manager_skills/stage-manager.svg" alt="Measured on agentmods" height="20"></a>
Per session not measured What this adds to a session before it is invoked.
When invoked not measured The manifest loads nothing itself; its 16 skills cost 2,150 tokens a session between them.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

stage-manager 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/stage-manager/.claude-plugin/plugin.json · 24 lines

What it actually says

{
  "name": "stage-manager",
  "version": "0.5.0",
  "description": "Artful Making skills for vibe coders. 16 skills across the Shape-to-Stage flow cycle — shape your spec, validate your premise, brief it, stage it clean. The mirror never goes dark.",
  "author": {
    "name": "MNFST Ai",
    "url": "https://github.com/Mnfst-AI"
  },
  "homepage": "https://github.com/Mnfst-AI/Stage_Manager_Skills",
  "repository": "https://github.com/Mnfst-AI/Stage_Manager_Skills",
  "license": "MIT",
  "keywords": [
    "shaping",
    "specification",
    "vibe-coding",
    "artful-making",
    "flow-cycle",
    "stage-manager",
    "invalidation",
    "yagni",
    "validation"
  ]
}
Contents

What it installs

The manifest is a name and a version. 16 skills travel with it, and installing the plugin installs all of them — 2,150 tokens a session between them. Each is measured on its own page, and each can be installed alone.

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 · 24 lines scan A 79ee85de04d4

Subscribe to this mod's changes

stage-manager is a plugin published in the GitHub repository mnfst-ai/Stage_Manager_Skills (5 stars, last pushed 2mo ago), licensed MIT. Its token cost is not measured: this kind of file is read by the harness, not the model. 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.

Planning
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