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simstim

Automate HITL workflows from PRD to implementation with phase gating.

Updated Aug 23, 2026
Search Tags:#workflow#orchestration#sdd#prd#sprint#hitl
One-click install
npx skills add https://github.com/project-purupuru/world-purupuru --skill simstim-project-purupuru
Or copy as Structured Prompt for Agent▼
Please help me install this Agent Skill.
Skill: simstim
Source: https://github.com/project-purupuru/world-purupuru/tree/main/.claude/skills/simstim-workflow
Command: npx skills add https://github.com/project-purupuru/world-purupuru --skill simstim-project-purupuru

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Orchestrates end-to-end Loa development workflows by coordinating PRD, SDD, sprint planning, and run-phase execution under Human-In-The-Loop oversight with integrated Flatline reviews.

Core Features & Use Cases

  • End-to-end HITL orchestration from PRD to implementation with phase-by-phase gating.
  • Flatline-style multi-model reviews for PRD, SDD, and Sprint artifacts.
  • Resume-capable state management and safe handoffs to /run sprint-plan for autonomous execution.

Quick Start

Run /simstim to initiate a full cycle from PRD to implementation and follow the prompts to guide each planning phase.

Frequently Asked Questions about simstim

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I orchestrate end-to-end HITL workflows from PRD to implementation?▼

Orchestrate HITL workflows by initiating a full cycle from PRD to implementation, following prompts to guide each planning phase with structured phase gating, artifact generation, and safe execution handoffs.

What is phase gating in sprint planning and how does it manage run-mode handoffs?▼

Phase gating enforces structured reviews across development cycle phases, validating PRD, SDD, and sprint artifacts through Flatline reviews to ensure safe run-mode handoffs for autonomous execution.

Can I resume a sprint planning workflow after a paused Flatline review?▼

Yes, you can resume sprint planning workflows after paused Flatline reviews because the system features resume-capable state management, allowing safe pause and continuation of Loa development cycles without losing progress.

Does the orchestration workflow support automated multi-model design reviews for SDD artifacts?▼

Yes, the orchestration workflow supports automated multi-model Flatline reviews for SDD artifacts, applying multi-model evaluation to PRD, SDD, and sprint planning outputs before gating phase progression.

What are the limitations of autonomous run-mode execution after sprint planning?▼

Autonomous run-mode execution is limited by mandatory prior HITL phase gating and Flatline reviews, preventing users from bypassing structured artifact validation or skipping prerequisite design reviews before initiating run-phase handoffs.

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