open-gstack-browser

Launches an AI-controlled Chromium browser with real-time activity feed and chat for enhanced user interaction.

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Security score

The open-gstack-browser skill was audited on Jun 10, 2026 and we found 80 security issues across 4 threat categories. Review the findings below before installing.

Categories Tested

Security Issues

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```bash

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```bash

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```bash

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449	echo "before relying on \`gbrain search\` for code questions in this worktree."

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577

```bash

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859

```bash

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Curl to non-GitHub URL

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784	curl -fsSL "https://bun.sh/install" -o "$tmpfile"

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Access to hidden dotfiles in home directory

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31	_UPD=$(~/.claude/skills/gstack/bin/gstack-update-check 2>/dev/null \|\| .claude/skills/gstack/bin/gstack-update-check 2>/dev/null \|\| true)

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Access to hidden dotfiles in home directory

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33	mkdir -p ~/.gstack/sessions

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Access to hidden dotfiles in home directory

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34	touch ~/.gstack/sessions/"$PPID"

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Access to hidden dotfiles in home directory

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35	_SESSIONS=$(find ~/.gstack/sessions -mmin -120 -type f 2>/dev/null \| wc -l \| tr -d ' ')

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Access to hidden dotfiles in home directory

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36	find ~/.gstack/sessions -mmin +120 -type f -exec rm {} + 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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37	_PROACTIVE=$(~/.claude/skills/gstack/bin/gstack-config get proactive 2>/dev/null \|\| echo "true")

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Access to hidden dotfiles in home directory

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38	_PROACTIVE_PROMPTED=$([ -f ~/.gstack/.proactive-prompted ] && echo "yes" \|\| echo "no")

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Access to hidden dotfiles in home directory

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41	_SKILL_PREFIX=$(~/.claude/skills/gstack/bin/gstack-config get skill_prefix 2>/dev/null \|\| echo "false")

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Access to hidden dotfiles in home directory

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45	source <(~/.claude/skills/gstack/bin/gstack-repo-mode 2>/dev/null) \|\| true

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Access to hidden dotfiles in home directory

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48	_SESSION_KIND=$(~/.claude/skills/gstack/bin/gstack-session-kind 2>/dev/null \|\| echo "interactive")

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Access to hidden dotfiles in home directory

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51	_LAKE_SEEN=$([ -f ~/.gstack/.completeness-intro-seen ] && echo "yes" \|\| echo "no")

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Access to hidden dotfiles in home directory

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53	_TEL=$(~/.claude/skills/gstack/bin/gstack-config get telemetry 2>/dev/null \|\| true)

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Access to hidden dotfiles in home directory

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54	_TEL_PROMPTED=$([ -f ~/.gstack/.telemetry-prompted ] && echo "yes" \|\| echo "no")

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Access to hidden dotfiles in home directory

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59	_EXPLAIN_LEVEL=$(~/.claude/skills/gstack/bin/gstack-config get explain_level 2>/dev/null \|\| echo "default")

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Access to hidden dotfiles in home directory

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62	_QUESTION_TUNING=$(~/.claude/skills/gstack/bin/gstack-config get question_tuning 2>/dev/null \|\| echo "false")

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Access to hidden dotfiles in home directory

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64	mkdir -p ~/.gstack/analytics

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Access to hidden dotfiles in home directory

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66	echo '{"skill":"open-gstack-browser","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","repo":"'$(_repo=$(basename "$(git rev-parse --show-toplevel 2>/dev/null)" 2>/dev/null \| tr -cd 'a-zA-Z0-9._-'); echo "${_r

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Access to hidden dotfiles in home directory

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68	for _PF in $(find ~/.gstack/analytics -maxdepth 1 -name '.pending-*' 2>/dev/null); do

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Access to hidden dotfiles in home directory

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70	if [ "$_TEL" != "off" ] && [ -x "~/.claude/skills/gstack/bin/gstack-telemetry-log" ]; then

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Access to hidden dotfiles in home directory

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71	~/.claude/skills/gstack/bin/gstack-telemetry-log --event-type skill_run --skill _pending_finalize --outcome unknown --session-id "$_SESSION_ID" 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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77	eval "$(~/.claude/skills/gstack/bin/gstack-slug 2>/dev/null)" 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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83	~/.claude/skills/gstack/bin/gstack-learnings-search --limit 3 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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88	~/.claude/skills/gstack/bin/gstack-timeline-log '{"skill":"open-gstack-browser","event":"started","branch":"'"$_BRANCH"'","session":"'"$_SESSION_ID"'"}' 2>/dev/null &

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Access to hidden dotfiles in home directory

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93	_ROUTING_DECLINED=$(~/.claude/skills/gstack/bin/gstack-config get routing_declined 2>/dev/null \|\| echo "false")

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Access to hidden dotfiles in home directory

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104	_CHECKPOINT_MODE=$(~/.claude/skills/gstack/bin/gstack-config get checkpoint_mode 2>/dev/null \|\| echo "explicit")

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Access to hidden dotfiles in home directory

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105	_CHECKPOINT_PUSH=$(~/.claude/skills/gstack/bin/gstack-config get checkpoint_push 2>/dev/null \|\| echo "false")

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Access to hidden dotfiles in home directory

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126	In plan mode, allowed because they inform the plan: `$B`, `$D`, `codex exec`/`codex review`, writes to `~/.gstack/`, writes to the plan file, and `open` for generated artifacts.

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Access to hidden dotfiles in home directory

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134	If `SKILL_PREFIX` is `"true"`, suggest/invoke `/gstack-*` names. Disk paths stay `~/.claude/skills/gstack/[skill-name]/SKILL.md`.

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Access to hidden dotfiles in home directory

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136	If output shows `UPGRADE_AVAILABLE <old> <new>`: read `~/.claude/skills/gstack/gstack-upgrade/SKILL.md` and follow the "Inline upgrade flow" (auto-upgrade if configured, otherwise AskUserQuestion with

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Access to hidden dotfiles in home directory

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141	- Missing `~/.claude/skills/gstack/.feature-prompted-continuous-checkpoint`: AskUserQuestion for Continuous checkpoint auto-commits. If accepted, run `~/.claude/skills/gstack/bin/gstack-config set che

medium line 142

Access to hidden dotfiles in home directory

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142	- Missing `~/.claude/skills/gstack/.feature-prompted-model-overlay`: inform "Model overlays are active. MODEL_OVERLAY shows the patch." Always touch marker.

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Access to hidden dotfiles in home directory

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155	If B: run `~/.claude/skills/gstack/bin/gstack-config set explain_level terse`.

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Access to hidden dotfiles in home directory

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159	rm -f ~/.gstack/.writing-style-prompt-pending

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Access to hidden dotfiles in home directory

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160	touch ~/.gstack/.writing-style-prompted

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169	touch ~/.gstack/.completeness-intro-seen

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182	If A: run `~/.claude/skills/gstack/bin/gstack-config set telemetry community`

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Access to hidden dotfiles in home directory

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192	If B→A: run `~/.claude/skills/gstack/bin/gstack-config set telemetry anonymous`

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Access to hidden dotfiles in home directory

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193	If B→B: run `~/.claude/skills/gstack/bin/gstack-config set telemetry off`

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Access to hidden dotfiles in home directory

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197	touch ~/.gstack/.telemetry-prompted

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210	If A: run `~/.claude/skills/gstack/bin/gstack-config set proactive true`

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Access to hidden dotfiles in home directory

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211	If B: run `~/.claude/skills/gstack/bin/gstack-config set proactive false`

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Access to hidden dotfiles in home directory

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215	touch ~/.gstack/.proactive-prompted

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Access to hidden dotfiles in home directory

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257	If B: run `~/.claude/skills/gstack/bin/gstack-config set routing_declined true` and say they can re-enable with `gstack-config set routing_declined false`.

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Access to hidden dotfiles in home directory

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261	If `VENDORED_GSTACK` is `yes`, warn once via AskUserQuestion unless `~/.gstack/.vendoring-warned-$SLUG` exists:

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Access to hidden dotfiles in home directory

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273	3. Run `~/.claude/skills/gstack/bin/gstack-team-init required` (or `optional`)

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Access to hidden dotfiles in home directory

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275	5. Tell the user: "Done. Each developer now runs: `cd ~/.claude/skills/gstack && ./setup --team`"

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Access to hidden dotfiles in home directory

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281	eval "$(~/.claude/skills/gstack/bin/gstack-slug 2>/dev/null)" 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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282	touch ~/.gstack/.vendoring-warned-${SLUG:-unknown}

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Access to hidden dotfiles in home directory

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424	_BRAIN_SYNC_BIN="~/.claude/skills/gstack/bin/gstack-brain-sync"

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Access to hidden dotfiles in home directory

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425	_BRAIN_CONFIG_BIN="~/.claude/skills/gstack/bin/gstack-config"

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Access to hidden dotfiles in home directory

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529	If A/B and `~/.gstack/.git` is missing, ask whether to run `gstack-artifacts-init`. Do not block the skill.

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Access to hidden dotfiles in home directory

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534	"~/.claude/skills/gstack/bin/gstack-brain-sync" --discover-new 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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535	"~/.claude/skills/gstack/bin/gstack-brain-sync" --once 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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578	eval "$(~/.claude/skills/gstack/bin/gstack-slug 2>/dev/null)"

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Access to hidden dotfiles in home directory

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595	~/.claude/skills/gstack/bin/gstack-decision-search --recent 5 2>/dev/null

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Access to hidden dotfiles in home directory

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604	Cross-session decisions. If `ACTIVE DECISIONS` are listed, treat them as prior settled calls with their rationale — do not silently re-litigate them; if you're about to reverse one, say so explici

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Access to hidden dotfiles in home directory

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617	Curated jargon list lives at `~/.claude/skills/gstack/scripts/jargon-list.json` (80+ terms). On the first jargon term you encounter this session, Read that file once; treat the `terms` array as the ca

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Access to hidden dotfiles in home directory

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663	Before each AskUserQuestion, choose `question_id` from `scripts/question-registry.ts` or `{skill}-{slug}`, then run `~/.claude/skills/gstack/bin/gstack-question-preference --check "<id>"`. `AUTO_DECID

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Access to hidden dotfiles in home directory

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671	~/.claude/skills/gstack/bin/gstack-question-log '{"skill":"open-gstack-browser","question_id":"<id>","question_summary":"<short>","category":"<approval\|clarification\|routing\|cherry-pick\|feedback-loop>

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Access to hidden dotfiles in home directory

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680	~/.claude/skills/gstack/bin/gstack-question-preference --write '{"question_id":"<id>","preference":"<pref>","source":"inline-user","free_text":"<optional original words>"}'

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Access to hidden dotfiles in home directory

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695	Before building anything unfamiliar, search first. See `~/.claude/skills/gstack/ETHOS.md`.

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Access to hidden dotfiles in home directory

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700	jq -n --arg ts "$(date -u +%Y-%m-%dT%H:%M:%SZ)" --arg skill "SKILL_NAME" --arg branch "$(git branch --show-current 2>/dev/null)" --arg insight "ONE_LINE_SUMMARY" '{ts:$ts,skill:$skill,branch:$branch,i

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718	~/.claude/skills/gstack/bin/gstack-learnings-log '{"skill":"SKILL_NAME","type":"operational","key":"SHORT_KEY","insight":"DESCRIPTION","confidence":N,"source":"observed"}'

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Access to hidden dotfiles in home directory

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728	`~/.gstack/analytics/`, matching preamble analytics writes.

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Access to hidden dotfiles in home directory

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735	rm -f ~/.gstack/analytics/.pending-"$_SESSION_ID" 2>/dev/null \|\| true

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Access to hidden dotfiles in home directory

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737	~/.claude/skills/gstack/bin/gstack-timeline-log '{"skill":"SKILL_NAME","event":"completed","branch":"'$(git branch --show-current 2>/dev/null \|\| echo unknown)'","outcome":"OUTCOME","duration_s":"'"$_T

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Access to hidden dotfiles in home directory

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740	echo '{"skill":"SKILL_NAME","duration_s":"'"$_TEL_DUR"'","outcome":"OUTCOME","browse":"USED_BROWSE","session":"'"$_SESSION_ID"'","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'"}' >> ~/.gstack/analytics/skill-

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Access to hidden dotfiles in home directory

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743	if [ "$_TEL" != "off" ] && [ -x ~/.claude/skills/gstack/bin/gstack-telemetry-log ]; then

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Access to hidden dotfiles in home directory

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744	~/.claude/skills/gstack/bin/gstack-telemetry-log \

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External URL reference

SourceSKILL.md

165	If `LAKE_INTRO` is `no`: say "gstack follows the Boil the Ocean principle — do the complete thing when AI makes marginal cost near-zero. Read more: https://garryslist.org/posts/boil-the-ocean" Off

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External URL reference

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168	open https://garryslist.org/posts/boil-the-ocean

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External URL reference

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784	curl -fsSL "https://bun.sh/install" -o "$tmpfile"

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External URL reference

SourceSKILL.md

920	$B goto https://news.ycombinator.com

Scanned on Jun 10, 2026

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Categorymarketing

UpdatedJune 10, 2026

claude claude-code codex cline frontend design playwright docx git api testing devops backend growth-marketer product-manager customer-experience marketing product support

garrytan/gstack