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GStack vs Agent Skills (Osmani). Rows marked Differs have different values.

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GStack

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Skill

Agent Skills (Osmani)

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TypeSkillSkill
Categories
In one lineGarry Tan's Claude Code skill stack.Production-grade engineering skills for 70+ coding agents.
Stage & funding——
GitHub starsDiffers≈138k≈111k
LicenseMITMIT
LanguageDiffersTypeScriptMDX
Last pushDiffersOct 28, 2026Oct 13, 2026
Works withDiffers
  • Claude Code
  • Claude Code
  • Cursor
  • Copilot
  • Any agent
Built on
Built on it——
Similar toDiffers
People linked11
Events00
Pros
  • DocsRole-based skills cover the sprint: /office-hours writes a design doc, /review hunts production bugs, /qa reproduces bugs in a real browser, /ship runs tests and opens the PR.[1]
  • DocsTeam mode bootstraps a repo so teammates get gstack automatically and stay on the same stable channel.[1]
  • DocsTelemetry is off by default and asked about once, with a documented privacy page.[1]
  • User reportsOne early user said it dramatically improved code quality and speed when used in Conductor.[1]
  • Docs25 skills mapped to the lifecycle (spec, plan, build, test, review, ship) behind 9 slash commands, and they auto-activate by task.[1]
  • DocsInstalls into 70+ agents through the open skills CLI, either all at once or one skill at a time.[1]
  • User reportsOne user mentions it alongside Superpowers and Matt Pocock's skills as a methodology layer for larger projects.[1]
  • MetadataMIT and actively released (0.6.14 on 2026-10-29).[1]
Cons
  • DocsRequires Bun 1.4.2+ (plus Node.js on Windows), and every Claude Code session runs an auto-update check against GitHub (throttled to once an hour).[1]
  • User reportsNon-Claude hosts have been rough: '--host cursor' was rejected even though the README listed it, and the Conductor template failed on new projects (spring 2026, since closed).[1][2][3]
  • User reportsSome users worry its telemetry gives YC signal on what people build, even though telemetry is opt-in.[1][2]
  • Docs/review collides with Claude Code's built-in command, so you have to use the namespaced /agent-skills:review.[1]
  • DocsThe optional '/build auto' implements every task after a single plan approval, removing human review between tasks (tests still run per task).[1]
  • MetadataLittle independent evaluation: its HN submission got 2 points and no comments, and skill packs like this are easy to copy.[1][2]
Best forFounders and small teams on Claude Code who want opinionated reviewer, QA and release roles with minimal setup.Developers who want senior-engineer workflows and quality gates packaged as portable skills across many agents.
Watch out forThe suggested team-mode commit makes gstack 'required' for every teammate, so agree on that before committing it.Watch for command-name clashes, and keep human review if you use /build auto.
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