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logline

logline

github.com/bybren-llcCreative & media7043 installsUpdated 12w ago
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About logline

A screenwriting skill for shaping movie concepts into concise loglines. It helps writers prepare pitches, clarify a story's central conflict, and test whether its hook communicates the premise.

Key features

  1. 01Apply a four-part hook structure
  2. 02Use logline formulas by genre
  3. 03Identify protagonist, goal, conflict, and stakes
  4. 04Check clarity and common pitfalls
  5. 05Validate against a quality checklist

Use cases

  1. 01Draft a logline for a screenplay
  2. 02Prepare a film pitch
  3. 03Revise a vague or overlong hook
  4. 04Assess whether a premise conveys its genre

Install

Copy the command and run it in a terminal.

$npx skills add https://github.com/bybren-llc/story-systems-template --skill logline

After installing, type/loglinein Claude Code to confirm it loaded.

Bundled filesREADME.md

Details

From the project README

Logline Skill

Invocation Triggers

Apply this skill when:

  • Distilling a story to its essential hook
  • Preparing pitch materials
  • Testing if a concept is clear and compelling
  • Marketing a screenplay

What is a Logline?

A logline (also called a "hook") is a one to two sentence description of your movie that captures the essence of the story in a way that makes people want to see it.

The Four Components of a Hook

Per WTFB methodology, every effective hook contains these four elements:

1. Characters
  • Who are they?
  • What do they want?
  • What are their goals?
2. Conflict
  • What is the main obstacle to achieving their goal?
  • Who or what opposes them?
3. Setting
  • Time period
  • Genre
  • Style/tone
4. Action
  • What exciting things happen?
  • Never be boring!

Logline Formula

[ADJECTIVE] [PROTAGONIST TYPE] must [GOAL/ACTION]
when [INCITING INCIDENT/CONFLICT],
or else [STAKES].
Alternative Formula
When [SETUP], a [PROTAGONIST] must [OBJECTIVE]
before [ANTAGONIST] [THREAT].
Genre-Specific Formula
A [GENRE] about [PROTAGONIST] who [SITUATION]
until [CATALYST] forces them to [ACTION]
against [ANTAGONIST/OBSTACLE].

Classic Logline Examples

Raiders of the Lost Ark

"An archeologist is hired by the U.S. government to find the Ark of the Covenant before the Nazis."

Breakdown:

  • Character: Archeologist (implies adventure, intelligence)
  • Conflict: Race against Nazis
  • Setting: Implied WWII era, adventure genre
  • Action: "Find" + competing with Nazis = excitement
Gladiator

"A Roman general is betrayed and his family killed by an insane emperor. Now a gladiator, he comes to Rome for revenge."

Breakdown:

  • Character: Roman general (status, skill)
  • Conflict: Betrayal, loss, revenge against emperor
  • Setting: Roman era, epic drama
  • Action: Gladiator combat, revenge journey

Logline Development Worksheet

Step 1: Core Elements
PROTAGONIST: ___________________________________
(Be specific: not "a man" but "a disgraced surgeon")

GOAL: ___________________________________
(What do they actively pursue?)

ANTAGONIST/OBSTACLE: ___________________________________
(Person, force, or circumstance opposing them)

STAKES: ___________________________________
(What happens if they fail?)

UNIQUE ELEMENT: ___________________________________
(What makes THIS story different?)
Step 2: Draft Loglines

Draft 1 (Basic):

___________________________________________________
___________________________________________________

Draft 2 (Add specificity):

___________________________________________________
___________________________________________________

Draft 3 (Add stakes):

___________________________________________________
___________________________________________________

Final Logline:

___________________________________________________
___________________________________________________

Logline Quality Checklist

Must Have
  • Protagonist clearly identified
  • Goal/objective stated
  • Conflict/obstacle present
  • Implies genre
  • One to two sentences maximum
  • Creates desire to know more
Should Have
  • Unique hook or twist
  • Stakes implied or stated
  • Active voice (character DOES something)
  • Specific rather than vague
Must Avoid
  • No questions ("What if...?")
  • No character names (unless famous)
  • No theme statements
  • No backstory
  • No "and then" chains

Common Logline Mistakes

MistakeExampleFix
Too vague"A man faces challenges""A retired hitman hunts the men who killed his dog"
Too longMultiple sentencesCut to one powerful sentence
No conflict"A woman discovers her past""A woman must confront the cult that raised her"
Passive"A story about love""A dying man races to reconnect with his estranged daughter"
Lists events"First X, then Y, then Z"Focus on central conflict
Theme not story"An exploration of grief""A widow must solve her husband's murder"

Genre-Specific Tips

Action/Thriller
  • Emphasize physical stakes and ticking clock
  • "Must stop X before Y happens"
Comedy
  • Hint at the comedic situation or irony
  • Include the fish-out-of-water element
Drama
  • Focus on internal conflict made external
  • Emphasize emotional stakes
Horror
  • Establish the threat
  • Imply isolation or helplessness
Romance
  • Show the obstacle to love
  • Include what makes this couple unique

Logline Testing

Share your logline and ask:

  1. Do they understand the genre?
  2. Do they know who the protagonist is?
  3. Can they identify the conflict?
  4. Do they want to know what happens?
  5. Can they picture the movie?

If "no" to any, revise.

Validation Checklist

  • Logline is 25 words or fewer
  • Protagonist is specific and interesting
  • Goal is clear and active
  • Conflict/obstacle is compelling
  • Stakes are implied or stated
  • Genre is clear
  • Creates curiosity to see the film
  • No character names used
  • Active voice throughout

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