cadence

A development workflow for one developer that separates planning, coding, and checking the result. It uses additional reviewers, including other AI models, to challenge plans and code changes.

In plain words
What is it for?
Use it to plan software changes, implement them, and have the plan and resulting code reviewed at defined checkpoints.
Why use it?
It helps expose mistakes or weak assumptions before work moves through the next stage, while keeping progress in files instead of the chat history.

Plugin for Claude Code

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 crenshawdev/cadence
agentmods
npx agentmods add plugins/crenshawdev/cadence/cadence
Clone the repo
git clone --depth 1 https://github.com/crenshawdev/cadence

Made for: Claude Code.

Per session not measured What this adds to a session before it is invoked.
When invoked not measured Not applicable: nothing here is loaded into a session.
Security scan A 0 findings. Scan, not verified.
Origin original No closer match found in the catalogue.
Security

Grade A, and why

cadence 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 yesterday.

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.

.claude-plugin/plugin.json · 20 lines

What it actually says

{
  "name": "cadence",
  "displayName": "Cadence",
  "description": "A plan/execute/verify loop for a single developer in Claude Code, with adversarial review at every gate: plans and diffs get refuted by a fresh Claude subagent or a panel of outside models (OpenAI, Gemini, DeepSeek), not just approved. State lives in files, not the conversation, so you clear aggressively and keep both your context and your token bill lean.",
  "version": "3.7.8",
  "author": {
    "name": "John Crenshaw"
  },
  "homepage": "https://github.com/crenshawdev/cadence",
  "repository": "https://github.com/crenshawdev/cadence.git",
  "license": "MIT",
  "keywords": [
    "planning",
    "workflow",
    "claude-code",
    "software-development",
    "git"
  ]
}
Files

What ships with it

1 file beside plugin.json 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. yesterday First seen · 20 lines scan A 6b2fea200f9c

Subscribe to this mod's changes

cadence is a plugin published in the GitHub repository crenshawdev/cadence (4 stars, last pushed 2d 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.