pbr

A structured workflow for Claude Code that divides development into planning, implementation, and verification, with help from separate subagents. Subagents are specialised AI workers handling parts of a task.

In plain words
What is it for?
Planning changes, delegating research or coding tasks, running implementation steps, and checking whether the final result matches the goal.
Why use it?
It reduces confusion when long coding tasks lose track of decisions, context, or unfinished work.

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 SienkLogic/plan-build-run
agentmods
npx agentmods add plugins/sienklogic/plan-build-run/pbr
Clone the repo
git clone --depth 1 https://github.com/SienkLogic/plan-build-run

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

pbr 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 2d 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/pbr/.claude-plugin/plugin.json · 39 lines

What it actually says

{
  "name": "pbr",
  "version": "2.22.0",
  "description": "Plan-Build-Run — Structured development workflow for Claude Code. Solves context rot through disciplined subagent delegation, structured planning, atomic execution, and goal-backward verification.",
  "author": {
    "name": "SienkLogic",
    "email": "[email protected]"
  },
  "homepage": "https://github.com/SienkLogic/plan-build-run",
  "repository": "https://github.com/SienkLogic/plan-build-run",
  "license": "MIT",
  "keywords": [
    "claude-code",
    "context-engineering",
    "development-workflow",
    "subagent-delegation"
  ],
  "userConfig": {
    "default_mode": {
      "title": "Default Mode",
      "description": "Default workflow mode: autonomous (hands-free) or interactive (pause at gates)",
      "type": "string",
      "sensitive": false
    },
    "context_window": {
      "title": "Context Window",
      "description": "Your model's context window size in tokens (e.g., 200000 or 1000000)",
      "type": "string",
      "sensitive": false
    },
    "default_depth": {
      "title": "Default Depth",
      "description": "Default research/planning depth: quick, standard, or comprehensive",
      "type": "string",
      "sensitive": false
    }
  }
}
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. 2d ago First seen · 39 lines scan A 76e30c6f4c70

Subscribe to this mod's changes

pbr is a plugin published in the GitHub repository SienkLogic/plan-build-run (17 stars, last pushed 5mo 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 2026-08-30.