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investigate

Facilitates systematic debugging and root cause analysis through a structured four-phase approach for effective problem resolution.

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The investigate skill was audited on Jun 3, 2026 and we found 54 security issues across 3 threat categories. Review the findings below before installing.

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Security Issues

medium line 40

Template literal with variable interpolation in command context

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40```bash
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279```bash
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575```bash
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Template literal with variable interpolation in command context

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581```bash
low line 41

Access to hidden dotfiles in home directory

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41_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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43mkdir -p ~/.gstack/sessions
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Access to hidden dotfiles in home directory

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44touch ~/.gstack/sessions/"$PPID"
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Access to hidden dotfiles in home directory

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45_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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46find ~/.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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47_PROACTIVE=$(~/.claude/skills/gstack/bin/gstack-config get proactive 2>/dev/null || echo "true")
low line 48

Access to hidden dotfiles in home directory

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48_PROACTIVE_PROMPTED=$([ -f ~/.gstack/.proactive-prompted ] && echo "yes" || echo "no")
low line 51

Access to hidden dotfiles in home directory

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51_SKILL_PREFIX=$(~/.claude/skills/gstack/bin/gstack-config get skill_prefix 2>/dev/null || echo "false")
low line 55

Access to hidden dotfiles in home directory

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55source <(~/.claude/skills/gstack/bin/gstack-repo-mode 2>/dev/null) || true
low line 58

Access to hidden dotfiles in home directory

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58_LAKE_SEEN=$([ -f ~/.gstack/.completeness-intro-seen ] && echo "yes" || echo "no")
low line 60

Access to hidden dotfiles in home directory

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60_TEL=$(~/.claude/skills/gstack/bin/gstack-config get telemetry 2>/dev/null || true)
low line 61

Access to hidden dotfiles in home directory

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61_TEL_PROMPTED=$([ -f ~/.gstack/.telemetry-prompted ] && echo "yes" || echo "no")
low line 66

Access to hidden dotfiles in home directory

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66mkdir -p ~/.gstack/analytics
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Access to hidden dotfiles in home directory

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68echo '{"skill":"investigate","ts":"'$(date -u +%Y-%m-%dT%H:%M:%SZ)'","repo":"'$(basename "$(git rev-parse --show-toplevel 2>/dev/null)" 2>/dev/null || echo "unknown")'"}' >> ~/.gstack/analytics/skill
low line 71

Access to hidden dotfiles in home directory

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71for _PF in $(find ~/.gstack/analytics -maxdepth 1 -name '.pending-*' 2>/dev/null); do
low line 73

Access to hidden dotfiles in home directory

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73if [ "$_TEL" != "off" ] && [ -x "~/.claude/skills/gstack/bin/gstack-telemetry-log" ]; then
low line 74

Access to hidden dotfiles in home directory

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74~/.claude/skills/gstack/bin/gstack-telemetry-log --event-type skill_run --skill _pending_finalize --outcome unknown --session-id "$_SESSION_ID" 2>/dev/null || true
low line 81

Access to hidden dotfiles in home directory

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81eval "$(~/.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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87~/.claude/skills/gstack/bin/gstack-learnings-search --limit 3 2>/dev/null || true
low line 93

Access to hidden dotfiles in home directory

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93~/.claude/skills/gstack/bin/gstack-timeline-log '{"skill":"investigate","event":"started","branch":"'"$_BRANCH"'","session":"'"$_SESSION_ID"'"}' 2>/dev/null &
low line 99

Access to hidden dotfiles in home directory

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99_ROUTING_DECLINED=$(~/.claude/skills/gstack/bin/gstack-config get routing_declined 2>/dev/null || echo "false")
medium line 113

Access to hidden dotfiles in home directory

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113`~/.claude/skills/gstack/[skill-name]/SKILL.md` for reading skill files.
medium line 115

Access to hidden dotfiles in home directory

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115If 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
low line 124

Access to hidden dotfiles in home directory

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124touch ~/.gstack/.completeness-intro-seen
medium line 141

Access to hidden dotfiles in home directory

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141If 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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152If B→A: run `~/.claude/skills/gstack/bin/gstack-config set telemetry anonymous`
medium line 153

Access to hidden dotfiles in home directory

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153If 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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157touch ~/.gstack/.telemetry-prompted
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Access to hidden dotfiles in home directory

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173If A: run `~/.claude/skills/gstack/bin/gstack-config set proactive true`
medium line 174

Access to hidden dotfiles in home directory

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174If 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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178touch ~/.gstack/.proactive-prompted
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Access to hidden dotfiles in home directory

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223If B: run `~/.claude/skills/gstack/bin/gstack-config set routing_declined true`
low line 280

Access to hidden dotfiles in home directory

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280eval "$(~/.claude/skills/gstack/bin/gstack-slug 2>/dev/null)"
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Access to hidden dotfiles in home directory

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382~/.claude/skills/gstack/bin/gstack-learnings-log '{"skill":"SKILL_NAME","type":"operational","key":"SHORT_KEY","insight":"DESCRIPTION","confidence":N,"source":"observed"}'
medium line 397

Access to hidden dotfiles in home directory

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397`~/.gstack/analytics/` (user config directory, not project files). The skill
low line 406

Access to hidden dotfiles in home directory

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406rm -f ~/.gstack/analytics/.pending-"$_SESSION_ID" 2>/dev/null || true
low line 408

Access to hidden dotfiles in home directory

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408~/.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
low line 411

Access to hidden dotfiles in home directory

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411echo '{"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-
low line 414

Access to hidden dotfiles in home directory

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414if [ "$_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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415~/.claude/skills/gstack/bin/gstack-telemetry-log \
medium line 434

Access to hidden dotfiles in home directory

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434- Writing to `~/.gstack/` (config, analytics, review logs, design artifacts, learnings)
medium line 475

Access to hidden dotfiles in home directory

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475~/.claude/skills/gstack/bin/gstack-review-read
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Access to hidden dotfiles in home directory

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534_CROSS_PROJ=$(~/.claude/skills/gstack/bin/gstack-config get cross_project_learnings 2>/dev/null || echo "unset")
low line 537

Access to hidden dotfiles in home directory

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537~/.claude/skills/gstack/bin/gstack-learnings-search --limit 10 --cross-project 2>/dev/null || true
low line 539

Access to hidden dotfiles in home directory

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539~/.claude/skills/gstack/bin/gstack-learnings-search --limit 10 2>/dev/null || true
medium line 554

Access to hidden dotfiles in home directory

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554If A: run `~/.claude/skills/gstack/bin/gstack-config set cross_project_learnings true`
medium line 555

Access to hidden dotfiles in home directory

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555If B: run `~/.claude/skills/gstack/bin/gstack-config set cross_project_learnings false`
low line 696

Access to hidden dotfiles in home directory

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696~/.claude/skills/gstack/bin/gstack-learnings-log '{"skill":"investigate","type":"TYPE","key":"SHORT_KEY","insight":"DESCRIPTION","confidence":N,"source":"SOURCE","files":["path/to/relevant/file"]}'
low line 119

External URL reference

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119thing when AI makes the marginal cost near-zero. Read more: https://garryslist.org/posts/boil-the-ocean"
low line 123

External URL reference

SourceSKILL.md
123open https://garryslist.org/posts/boil-the-ocean
Scanned on Jun 3, 2026
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Categorysales
UpdatedJune 15, 2026
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