How do I install the Plan Synthesize skill?

Run npx skillmds@latest add hoangsonww/plan-synthesize in your terminal (requires Node.js), paste this page's agent-chat prompt into Claude, Cursor, or any MCP-connected agent, or download the SKILL.md file and copy it into your agent's skills directory.

What does the Plan Synthesize skill do?

Synthesize competing plans from multiple frontier models into a single best-of-all-worlds hybrid. Use after /plan has produced 2+ competing plans in .flywheel/plans/. It is listed under Coding & Dev Tools on SkillMD.

Is Plan Synthesize safe to use?

This skill has not completed SkillMD's automated safety review yet. SkillMD never runs a skill's scripts for you; review the SKILL.md before installing.

Which AI agents work with Plan Synthesize?

This skill is tagged as working with Claude Code, Claude.ai, OpenAI Codex. SKILL.md is an open format, so most agents that read a skills directory can load it too.

Is Plan Synthesize free to use?

Yes. Installing skills from SkillMD is free, and the skill stays under its author's original license.

Who published Plan Synthesize?

hoangsonww (@hoangsonww) published this skill. Their other Agent Skills are listed on their SkillMD profile.

Plan Synthesize by hoangsonww — Agent Skill

Name: Plan Synthesize
Author: hoangsonww

File contents

/plan-synthesize — best-of-all-worlds

Feed competing plans into a single GPT Pro session and produce a hybrid that integrates the strongest ideas from every input.

Workflow

Pick a primary. Choose the best of the competing plans as your "base" — usually GPT Pro's. Its content gets the git-diff revisions applied to it.
Open the synthesis prompt. Read .flywheel/prompts/plan-synthesize-best-of-all-worlds.md. Copy it into a fresh GPT Pro (web) conversation.
Paste the base plan, then each competitor. Label each clearly.
Receive git-diff revisions. GPT Pro will produce a list of diff-style changes integrating the best ideas.
Apply in-place with Claude / Codex. Use the prompt in .flywheel/prompts/plan-integrate-synthesis.md. The agent applies the diffs to .flywheel/plans/<date>-<slug>-gpt-pro.md (renaming it to -hybrid.md is a good practice) and reports which revisions it wholeheartedly agrees with, somewhat agrees with, or disagrees with.
Iterate. Use .flywheel/prompts/plan-refine.md in fresh GPT Pro conversations 4–5 more times until convergence.
Sanity overshoot. Once per synthesis, run .flywheel/prompts/overshoot-mismatch-hunt.md to catch elements the model silently dropped.

Output

A single hybrid plan at .flywheel/plans/<date>-<slug>-hybrid.md. This is the one you'll feed into /plan-to-beads.

Frequently asked questions

Plan Synthesize