(all install paths will be in the comments)
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this is the factory that builds everything else.
describe what you want in plain english โ claude builds the skill, tests it, packages it. you never have to write a skill.md by hand again. drop in an SOP and it becomes a reusable skill instantly. install: /plugin install skill-creator
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fixes the #1 failure in claude code: rushed, sloppy output.
forces claude to plan first, work in isolation, write tests before code, then review its own work twice. gets you from 60% โ 80% on the first pass. fewer debugging cycles = less time, lower token costs.
150k+ stars on GitHub btw
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fixes context rot.
you know when claude starts forgetting requirements halfway through a session and cutting corners? GSD spawns fresh sub-agents for each task so your main session stays clean and every task gets a full context window. also has an autonomous mode if you want to hand it a spec and walk away.
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already built into claude code. most people aren't using it.
/review = fast structured code review after you build something. free beyond normal tokens.
/ultra review = uploads your branch to a cloud sandbox, spins up parallel reviewer agents, each attacking from a different angle. bugs have to be independently verified before they hit your list. no false positives.
need claude code 2.1.86+. costs $5โ20/run after 3 free ones on Pro/Max.
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keeps garbage out of your context window.
raw tool outputs get routed through a sandbox. a 56kb playwright snapshot becomes 299 bytes. 315kb of session output becomes 5kb total. also tracks every file edit, decision, and error in a local SQL database so when claude compacts the conversation, it doesn't lose anything.
sessions that used to fall apart at 30 minutes now run 3 hours clean.
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carries knowledge across every future session.
claude normally starts from scratch every time. ClaudeMem hooks into the session lifecycle, captures what happened, compresses it into semantic summaries stored in a local SQLite db with vector search, then injects the relevant parts back in when you open a new session. also auto-generates and updates your CLAUDE.md files while you work. if you're new though don't install all 6 at once! pick one, build something with it, and show a business owner the output. they don't care about your process. they care about their 10 hours back.