setup-gbrain

69 / 100 · Review before installing

Check before installing. Some of what it can do is expected: a coding skill usually runs build and test commands.

By garrytan/gstack (GitHub) · coding · 141,312 stars · scanned at commit bc858ff

Set up gbrain for this coding agent: install the CLI, initialize a local PGLite or Supabase brain, register MCP, capture per-remote trust policy. (gstack)

Works with any agent that supports SKILL.md skills.

What this skill can do

Runs commands on your computer

This is disclosed by the author in the skill's SKILL.md or README. Expected for a coding skill.

Found in 24 places.

setup-gbrain/SKILL.md, line 31~/.claude/skills/gstack/bin/gstack-skill-start --skill "setup-gbrain" --model "claude"
setup-gbrain/SKILL.md, line 67~/.claude/skills/gstack/bin/gstack-question-log '{"skill":"setup-gbrain","question_id":"<id>","question_summary":"<summary-slug>","category":"<approval|clarific
setup-gbrain/SKILL.md, line 76~/.claude/skills/gstack/bin/gstack-question-preference --write '{"question_id":"<id>","preference":"<pref>","source":"inline-user"}'

Show 17 more

setup-gbrain/SKILL.md, line 92~/.claude/skills/gstack/bin/gstack-skill-end --skill "setup-gbrain" --outcome OUTCOME \
setup-gbrain/SKILL.md, line 149~/.claude/skills/gstack/bin/gstack-gbrain-detect
setup-gbrain/SKILL.md, line 202[ -f ~/.claude/skills/gstack/bin/gstack-code-intelligence ] \
setup-gbrain/SKILL.md, line 286~/.claude/skills/gstack/bin/gstack-gbrain-install
setup-gbrain/SKILL.md, line 318DOCTOR=$(~/.claude/skills/gstack/bin/gstack-gbrain-detect --doctor)
setup-gbrain/SKILL.md, line 343claude mcp remove gbrain -s user 2>/dev/null || true
setup-gbrain/SKILL.md, line 372GBRAIN_BIN=$(command -v gbrain)
setup-gbrain/SKILL.md, line 416current_tier=$(~/.claude/skills/gstack/bin/gstack-gbrain-repo-policy get)
setup-gbrain/SKILL.md, line 434~/.claude/skills/gstack/bin/gstack-gbrain-repo-policy set "$REMOTE" "$TIER"
setup-gbrain/SKILL.md, line 464URL_FORM=${URL_FORM_SUPPORTED:-false}
setup-gbrain/SKILL.md, line 498GBRAIN_DATABASE_URL= DATABASE_URL= ~/.claude/skills/gstack/bin/gstack-gbrain-source-wireup --strict
setup-gbrain/SKILL.md, line 569SLUG="setup-gbrain-smoke-test-$(date +%s)"
setup-gbrain/SKILL.md, line 593_HASH=$(~/.claude/skills/gstack/bin/gstack-config endpoint-hash 2>/dev/null)
setup-gbrain/SKILL.md, line 608~/.claude/skills/gstack/bin/gstack-config set brain_trust_policy@$_HASH personal
setup-gbrain/SKILL.md, line 634~/.claude/skills/gstack/bin/gstack-config set brain_trust_policy@$_HASH <personal|shared>
setup-gbrain/SKILL.md, line 641_CURRENT_SYNC=$(~/.claude/skills/gstack/bin/gstack-config get artifacts_sync_mode 2>/dev/null || echo off)
setup-gbrain/SKILL.md, line 659GSTACK_STATE_ROOT=$(~/.claude/skills/gstack/bin/gstack-paths --get GSTACK_STATE_ROOT); : "${GSTACK_STATE_ROOT:?gstack-paths failed; reinstall with ./setup or /g

and 4 more places

Connects to the internet

This is disclosed by the author in the skill's SKILL.md or README.

Found in 6 places.

setup-gbrain/SKILL.md, line 556curl -s -X POST -H 'Content-Type: application/json' \
setup-gbrain/SKILL.md, line 752projects=$(curl -s -H "Authorization: Bearer $SUPABASE_ACCESS_TOKEN" \
setup-gbrain/SKILL.md, line 764curl -s -X DELETE -H "Authorization: Bearer $SUPABASE_ACCESS_TOKEN" \

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setup-gbrain/SKILL.md.tmpl, line 469curl -s -X POST -H 'Content-Type: application/json' \
setup-gbrain/SKILL.md.tmpl, line 665projects=$(curl -s -H "Authorization: Bearer $SUPABASE_ACCESS_TOKEN" \
setup-gbrain/SKILL.md.tmpl, line 677curl -s -X DELETE -H "Authorization: Bearer $SUPABASE_ACCESS_TOKEN" \

Downloads and installs other software

The author does not mention this.

Found in 2 places.

setup-gbrain/memory.md, line 187If gitleaks is not installed (run `brew install gitleaks` on macOS, or
setup-gbrain/memory.md, line 188`apt install gitleaks` on Linux) and you passed `--scan-secrets` anyway,

Changes files outside its own folder

The author does not mention this.

Found in 12 places.

setup-gbrain/sections/brain-init.md, line 219mv "$HOME/.gbrain/config.json" "$BACKUP"
setup-gbrain/sections/brain-init.md, line 230if [ -n "${BACKUP:-}" ] && [ -f "$BACKUP" ]; then mv "$BACKUP" "$HOME/.gbrain/config.json"; fi
setup-gbrain/sections/brain-init.md, line 231echo "gbrain init failed. Existing config (if any) was restored. PGLite at ~/.gbrain/pglite/ may be in a partial state — \`rm -rf ~/.gbrain/pglite\` to reset."

Show 9 more

setup-gbrain/sections/brain-init.md.tmpl, line 217mv "$HOME/.gbrain/config.json" "$BACKUP"
setup-gbrain/sections/brain-init.md.tmpl, line 228if [ -n "${BACKUP:-}" ] && [ -f "$BACKUP" ]; then mv "$BACKUP" "$HOME/.gbrain/config.json"; fi
setup-gbrain/sections/brain-init.md.tmpl, line 229echo "gbrain init failed. Existing config (if any) was restored. PGLite at ~/.gbrain/pglite/ may be in a partial state — \`rm -rf ~/.gbrain/pglite\` to reset."
setup-gbrain/sections/engine-remediation.md, line 46mv "$HOME/.gbrain/config.json" "$BACKUP"
setup-gbrain/sections/engine-remediation.md, line 58mv "$BACKUP" "$HOME/.gbrain/config.json"
setup-gbrain/sections/engine-remediation.md, line 60echo "PGLite directory at ~/.gbrain/pglite/ may be in a partial state — \`rm -rf ~/.gbrain/pglite\` if needed before retrying." >&2
setup-gbrain/sections/engine-remediation.md.tmpl, line 44mv "$HOME/.gbrain/config.json" "$BACKUP"
setup-gbrain/sections/engine-remediation.md.tmpl, line 56mv "$BACKUP" "$HOME/.gbrain/config.json"
setup-gbrain/sections/engine-remediation.md.tmpl, line 58echo "PGLite directory at ~/.gbrain/pglite/ may be in a partial state — \`rm -rf ~/.gbrain/pglite\` if needed before retrying." >&2

Safer alternatives

Low-risk skills in the same category (coding) that look related. Check that one does what you need.

Install

Paste this into your terminal. It downloads exactly the version we scanned, not whatever is newest.

if [ -e ~/.agents/skills/'setup-gbrain' ] || [ -L ~/.agents/skills/'setup-gbrain' ]; then echo 'A skill folder named setup-gbrain already exists — not replacing it' >&2; false; else d=$(mktemp -d) && git clone --quiet --filter=blob:none --no-checkout 'https://github.com/garrytan/gstack' "$d" && git -C "$d" checkout --quiet 'bc858ffc659bcc61558f60d0e023a009817dd48f' -- 'setup-gbrain' && mkdir -p ~/.agents/skills && cp -R "$d"/'setup-gbrain' ~/.agents/skills/'setup-gbrain' && rm -rf "$d"; fi

Codex reads ~/.agents/skills directly. For Claude Code, Cursor, Copilot, Gemini CLI, Antigravity or OpenCode, also link it. For Claude Code: ln -s ~/.agents/skills/'setup-gbrain' ~/.claude/skills/'setup-gbrain' (other agents: ~/.cursor/skills, ~/.copilot/skills, ~/.gemini/skills, ~/.gemini/config/skills, ~/.config/opencode/skills). Or install through the finder skill, which does both.

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Score history

Date	Version	Score
2026-11-12	`bc858ff`	69
2026-11-11	`f0cd9f8`	69
2026-11-10	`6b32714`	69
2026-11-09	`c25580e`	69
2026-11-08	`9740bfd`	69
2026-11-08	`d479c5b`	69
2026-11-06	`0c41ced`	59