Deep Investigation Protocol
"What is REALLY at stake here? And for whom?" - STOP. When the matter involves trustworthiness, purchasing decisions, "which is better or more reliable", brand comparisons, marketing claims, corporate behavior, "convince me otherwise", or post-purchase "was this good?" - USE THIS. For technical specs affecting quality (TLC vs QLC, component sourcing) use Light Touch mode. Search and verify even if you think you know. Does NOT trigger for: what to watch/eat/wear, how-to instructions, when/where/who founded, or explicit "just tell me quick."
From the source SKILL.md
<EXTREMELY_IMPORTANT> You are about to answer a question where MARKETING AND REALITY DIVERGE.
What this skill does
Deep Investigation Protocol is a community-contributed Claude Code skill in the growth-misc sub-category. It ships as a SKILL.md file that Claude Code auto-discovers under ~/.claude/skills/deep-investigation-protocol/ and loads when your prompt matches the skill's trigger.
Who uses this skill
The Deep Investigation Protocol Claude Code skill is built for growth marketers, product-led growth teams, founders running experiments, and performance marketing teams. It's part of ClaudSkills (also referred to as Claude Skills or Claude Code Skills) — the open community-curated registry of 116,000+ SKILL.md files for Anthropic's Claude Code agent and the wider Claude ecosystem (Claude API, Claude Agent SDK).
How to install
Free
Manual install (2 steps)
mkdir -p ~/.claude/skills/deep-investigation-protocol
curl -L https://claudskills.com/skills/deep-investigation-protocol/SKILL.md \
-o ~/.claude/skills/deep-investigation-protocol/SKILL.md
Or just download SKILL.md directly and drop it into ~/.claude/skills/deep-investigation-protocol/. Claude Code auto-discovers it on next session.
Skills live at ~/.claude/skills/deep-investigation-protocol/SKILL.md on macOS/Linux, or %USERPROFILE%\.claude\skills\deep-investigation-protocol\SKILL.md on Windows. See the full install guide for step-by-step instructions.
Telegram
📱 Install from your phone or desktop Telegram
Open @claudskills_bot on Telegram, tap Open Desktop App, and the desktop app installs this skill for you. Or share the bot link with a colleague — they get the same one-tap install. Learn more →
Pro
One-click install via the desktop app
The ClaudSkills desktop app installs any skill directly into ~/.claude/skills/ with one click — no terminal required. Pro starts at $9/mo or $149 lifetime.
Pro
For the full experience including quality scoring and one-click install features for each skill — upgrade to Pro.
Frequently asked questions
How do I install the Deep Investigation Protocol Claude Code skill?
Install via the ClaudSkills desktop app (one click) or copy
SKILL.md from the source repository to
~/.claude/skills/deep-investigation-protocol/SKILL.md and restart Claude Code. Both flows are detailed at
claudskills.com/install/.
What does the Deep Investigation Protocol skill do?
"What is REALLY at stake here? And for whom?" - STOP. When the matter involves trustworthiness, purchasing decisions, "which is better or more reliable", brand comparisons, marketing claims, corporate behavior, "convince me otherwise", or post-purchase "was this good?" - USE THIS. For technical specs affecting quality (TLC vs QLC, component sourcing) use Light Touch mode. Search and verify even if you think you know. Does NOT trigger for: what to watch/eat/wear, how-to instructions, when/where/who founded, or explicit "just tell me quick."
Is this skill free to install?
Yes. ClaudSkills is an open registry — every skill keeps its source repository's license, and manual install via copy is free. ClaudSkills Pro ($9/mo, $79/yr, or $149 one-time) adds one-click install via the desktop app and a multi-signal Quality Score.
When should I use the Deep Investigation Protocol skill?
Use Deep Investigation Protocol when your Claude Code task falls under the Growth & Marketing category — specifically in the growth misc area. Claude Code auto-discovers installed skills and invokes the right one based on the task description, so you can also ask Claude directly (e.g. "use Deep Investigation Protocol" or describe the task and let Claude pick). Browse related skills at
/category/growth/.
What is a Claude Code skill and how does the Deep Investigation Protocol skill fit in?
A Claude Code skill is a
SKILL.md file that lives under
~/.claude/skills/<name>/ and tells the Claude Code CLI agent how to perform a specific task (instructions, prompts, allowed tools). Skills are auto-discovered at session start. Deep Investigation Protocol is one of 67,000+ skills indexed in the open ClaudSkills catalog, classified under the Growth & Marketing category. Learn more at
/learn/what-is-a-claude-skill/.
Attribution & license
Cite this skill
If you reference this skill in a blog post, paper, or documentation, you can cite it as:
APA
bogheorghiu. (2026). Deep Investigation Protocol [Claude Code skill]. ClaudSkills. https://claudskills.com/skills/deep-investigation-protocol/
BibTeX
@misc{deep-investigation-protocol-2026,
author = {bogheorghiu},
title = {Deep Investigation Protocol [Claude Code skill]},
year = {2026},
publisher = {ClaudSkills},
url = {https://claudskills.com/skills/deep-investigation-protocol/}
}Embed this skill
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