Which agents work with it?

Any agent that reads skills from a directory. Claude Code, Codex and Gemini CLI read it natively; Cursor and VS Code connect over MCP.

The voice runs on your own machine, so there is nothing to meter. The first run downloads it, about 340 MB.

Yes. The skill is MIT-licensed and the authoring format is public.

Create

gstack now auto-runs only four skills, so it stops colliding with other skill packs

2 hours ago

@gstack Subscribe

gstack 1.91.216.0 to 1.91.243.0 (2026-10-25 to 2026-10-26): gstack for Claude Code now auto-invokes only /office-hours, /review, /qa and /ship by default, team installs follow a weekly stable release, a fresh install is about 520 MB smaller, API keys stay out of tool output, /review re-checks only its fixes, and skills start at once on Windows again. Plus a browser TLS caveat. Changelog: https://github.com/garrytan/gstack/blob/main/CHANGELOG.md Release channels: https://github.com/garrytan/gstack/blob/main/docs/releases.md Proactive setting: https://github.com/garrytan/gstack/blob/main/docs/proactive.md Browser TLS warning: https://github.com/garrytan/gstack/blob/main/BROWSER.md Commits: https://github.com/garrytan/gstack/commits/main

Ask about this presentation

Show transcript

gstack used to start any skill that matched your request, which made it collide with other skill packs in Claude Code. Now only /office-hours, /review, /qa and /ship start on their own.
Slide text

gstack now auto-runs only four skills, so it stops colliding with other skill packs

/office-hours /review /qa /ship

A skill you name still runs. Every matching skill, or none, is one setting away.

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.240.0
Team-mode installs used to move with every merge on main, about a dozen a day. Now they follow a stable branch that a Monday release moves to the newest green commit, plus hotfixes.
Slide text

Team installs now update once a week

main · every merge → Monday · newest green commit → stable · team installs

Each cut is tagged and published as a GitHub Release. Contributors keep following main.

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.234.0
Setup now installs production dependencies only, so a fresh install skips the test toolchain and the Claude Agent SDK's native binaries. An install you already have keeps them until you clear them.
Slide text

A fresh install is about 520 MB smaller

node_modules before
1,094 MB

node_modules now
572 MB

An existing install keeps its dev packages until you clear them.

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.231.0
In an unattended /ship run, a child agent ran a bare export and printed API keys into its tool output. Now children get a file to source, and redaction stops any key from your environment reaching a PR body.
Slide text

Your API keys stay out of tool output and PR bodies

$ export
ANTHROPIC_API_KEY=… OPENAI_API_KEY=…

launch settings: a file to source key values redacted

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.243.0
Each /review fix cycle used to re-read the whole branch, so big branches hit the three-cycle stop. Now the next pass reads only the fixes, and the final pass still covers everything.
Slide text

/review re-reads only its own fixes after a fixing pass

before every fix cycle · whole branch

now next pass · just the fixes

The final pass still reads the whole branch.

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.226.0
In Git for Windows, the workflow lock relied on a symlink that never got created, so each skill start waited out three hundred retries, over eight minutes in one report. Now skills start right away.
Slide text

Skills start at once on Windows again

Git Bash, before 499 s per skill start

now lock taken on the first try

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.228.0
/context-restore now flags commits that landed after a save. A design doc edited in plan mode stays current for the plan reviews. And /design-html builds landing pages around one visitor action, without invented customers or numbers.
Slide text

Three smaller changes

/context-restore flags commits that landed after the save1.91.224.0

A design doc edited in plan mode now reaches the plan reviews1.91.220.0

/design-html builds landing pages around one action, with no invented proof1.91.225.0

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.220.0 to 1.91.225.0
gstack's headless browser gets no revocation updates, so it still trusts the eMudhra certificates Chrome blocked. Until Playwright ships a fixed Chromium, keep signed-in work off untrusted networks. If other skill packs share your Claude Code, I would upgrade now.
Slide text

gstack’s browser still trusts the compromised eMudhra certificates

The fix waits for a Playwright release with Chromium 158.0.8115.0 or later. Your own browser is unaffected.

Upgrade now, and keep signed-in work off untrusted networks

CHANGELOG.md · BROWSER.md garrytan/gstack

Core four Stable Smaller Keys Review Windows Fixes Browser
garrytan/gstack · CHANGELOG.md · 1.91.239.0