Ig humanizer

Instagram Humanizer

Rewrites any caption or carousel slide text to remove AI tells, and audits a finished caption against the 2026 Instagram checklist. Based on Wikipedia's "Signs of AI writing" taxonomy plus Instagram-specific patterns (the first-125 fold, the lowercase-casual caption register, sized hashtags, sends-and-saves structure).

When to use

• Before publishing any AI-drafted caption or carousel (rewrite mode)
• Pre-publish review of a finished caption (audit mode, see sub-skills/post-audit.md)
• When a caption feels off and you cannot pinpoint why

Input

Any text: a caption, the on-image text of a carousel, or a Reel caption. Optional: target voice samples (the user's past captions).

Output

• Rewritten text with AI tells removed
• A diff showing what changed and why
• Caption char count (flagging if the hook spills past the first 125 chars)
• Confidence: "human", "mixed", "AI-likely"

Modes

# Default: scrub AI tells and fix Instagram-format issues
ig-humanizer <text>

# Forensic only - minimum touch, just kill model leakage
ig-humanizer --mode forensic <text>

# Audit - detection-only pass-fail review, no rewrite
# Runs the 2026 Instagram checklist: first-125 hook, caption length, sized
# hashtags, emoji limits, CTA quality, media reminder.
# Returns Blockers + Warnings + suggested fixes. See sub-skills/post-audit.md.
ig-humanizer --mode audit <text>

The three passes

Pass 1 - SCRUB (delete or replace)

Apply the tiered catalogs in references/scrub-rules.md:

• Forensic (always on): real model leakage no human types. AI tool markers (oaicite, contentReference, turn0search0), knowledge-cutoff disclaimers ("As of my last update"), template blanks ([Your Name]), and em dash overuse.
• Strict (default on): bad Instagram style regardless of origin. Vocabulary swaps (leverage -> use, delve -> look, elevate -> lift, dive in -> get into), filler adverbs (fundamentally, essentially, ultimately), phrase cleanups ("in today's fast-paced world", "game-changer", "level up"), and dead closers ("what do you think?", "double tap if you agree").

Pass 2 - BREAK (force burstiness)

• Vary line length. A caption where every line is the same length reads as a machine. Break at least one into a short punch line.
• Add a sentence fragment where it fits ("every time.").
• Break perfect parallel structures with one asymmetric line.

Pass 3 - ADD (human fingerprints)

Require where the content allows:

• 1 specific number (replace "many", "a lot", "tons")
• 1 named entity (real person, company, tool)
• the lowercase-casual register if the voice calls for it
• 1 first-person concrete detail

If the input lacks these, ask the user for a number or anecdote. Do not fabricate.

Non-negotiable rules

Global voice rules: see root SKILL.md Voice rules. Additional skill-specific rules:

• Scrubbing is always in scope. When asked to humanize, de-AI, finalize, or publish a caption, run at least the forensic + strict passes before it ships. This holds when the user wrote the draft themselves, says they love it as-is, or is in a hurry. Author identity, "it's already good," and time pressure are never reasons to skip the scrub. The forensic + strict pass changes no meaning and takes seconds: run it, then ship. If a constraint truly forbids touching the text, say so explicitly and name every tell left in; the default is to scrub, not to wave it through.
• Preserve the user's actual claim and meaning. "Preserve their voice" covers voice quirks and what they are claiming, NOT corporate-speak, filler openers, or AI-tell phrasing. Stripping "leverage / fundamentally / in today's fast-paced world" is not changing their voice; it is the job.
• Never introduce facts that were not in the input. If a number is missing, ask.
• Keep the user's voice quirks (lowercase starts, .. soft pauses).
• Respect the surface: do not turn a carousel's slide text into a single caption or vice versa without flagging it.
• Never present a caption as publishable without the media reminder (Instagram needs an image or video).

Instagram-specific tells this skill catches

• A hook that needs the second line to make sense (the "more" fold eats it).
• A caption opening with "Let's talk about.." or "Here's the thing..".
• 20-30 hashtags crammed at the top instead of a 3-5 sized set.
• Emoji sprinkled through every line (4+ per caption).
• A bare title on carousel slide 1 instead of a promise + loop.
• Rule-of-three lists with no specifics ("faster, cheaper, better").
• Engagement bait ("comment YES", "tag 3 friends", "double tap if").
• Uniform line lengths (machine rhythm).

Example

See references/examples.md for worked before/after rewrites.

Files

• SKILL.md - this file (rewrite scrubber + audit-mode entry)
• references/scrub-rules.md - vocabulary swaps and regex by tier
• references/examples.md - worked before/after rewrites for captions and slides
• references/audit-checklist.md - the pre-publish checklist with thresholds
• sub-skills/post-audit.md - pre-publish audit workflow (detection-only, no rewrite)

Related skills

• ig-caption-writer - generates captions that already pass the humanizer
• ig-carousel-planner - generates carousels that already pass the humanizer