Headcanon, Mapped: Five Families, Six Tones, Thirty Cells

The word headcanon usually gets an abstract explanation — a reader's private addition to a story that was never confirmed — and then the explanation stops. What it never tells you is which of the sentences in front of you to keep, or what kind of sentence to ask for in the first place. That is a board, not a definition. The tool here draws from 180 hand-written lines arranged as five families by six tones, and each of the thirty cells is a different job with a different failure mode. This page is the map: what each family answers, what each tone sounds like, how quickly a plain roll walks the board, what the five families have in common, and which guide to open next.

It is worth saying plainly why the board is countable at all. This is not a language model guessing at a character. It is a fixed file of sentences grouped by the question they answer, and the grouping can be inspected line by line. Everything quoted as a count on this page came out of that file, so you can disagree with an interpretation but not with an arithmetic. If you would rather start with the general shape of the idea rather than the machine, the three-question test for what counts as a headcanon is the entry point for that; this page assumes you have already decided you want one and are asking where to stand.

Read the board top to bottom and you have a checklist for a character; read it left to right and you have six ways to say the same thing. The filled cells are the point that catches people out: a plain roll never gives you a column, it gives you a row-position in every family, and the voice is chosen for you. That is why the tone chips are a setting and not a suggestion.

The five families, as five questions

Each family is thirty-six lines — six tones times six lines — and each one answers a different question about a person. Read as labels they sound like categories; read as questions they tell you which one you are missing.

• Personality — what are they like when it costs nothing? This is the family for the trait that shows before anything is at stake. Its failure mode is a list of adjectives, because an adjective cannot be staged.
• Backstory — where did a present habit come from? Used well, this family exists to explain something already on the page. Its failure mode is biography: an event that never touches the present is a date, not a headcanon.
• Relationships — who do they owe, and who keeps them honest? One tie to one other person, and the tie has to change what your character does. Its failure mode is inventing a second person the source never gave you, which quietly turns the note into a different story.
• Quirks — what do they do without noticing? The cheapest family and the one a reader notices first. Its failure mode is costume: a habit that is described but never allowed to interfere with anything.
• Secrets — what do they hold and not say? The most useful family for a plot you already have, because a secret is a pressure rather than a fact. Its failure mode is a secret with no cost.

Five families, and one press gives you one line from each, so a single roll already answers all five questions at once. Whether five is the right number of answers for your character is a genuinely separate decision, and it has its own page: the matrix of families by tones walks all thirty combinations and says what each is for.

The six tones, as six voices

Tone does not change what the line claims, only how it sounds. That is the whole reason the board has a second axis: the same fact about a character can be a kindness, a joke, a wound or a shrug, and the version you want depends on the scene rather than on the character.

• Wholesome — the answer given generously. Best when you want the reader to trust this person early and you have not earned it yet.
• Funny — the answer that is smaller than it should be. Best when the comedy should come from the character rather than from the situation.
• Romantic — the answer that is only visible to one other person. Best when a single scene has to carry the whole relationship.
• Angsty — the answer that is a defence. Best when the scene you are writing is going to press on exactly that defence.
• Chaotic — the answer that creates a problem right now. Best when you need the character to make the next ten minutes harder.
• Melancholy — the answer that is already over. Best when the loss is not a plot and never becomes one, which is most of the time.

One mechanical note that saves a lot of confusion: switching a tone chip resets the roll and draws again immediately. So the five lines on screen after you switch are that tone's own five, not a filtered view of what was already there. If you want the same five questions answered in a different voice, the switch is the way to ask, and there are six worked versions of one character in the six tones if you want to see how far apart they land.

All thirty cells, one line each

Here is the whole board as a menu. Each entry is a job, not a definition — reach for the cell whose job matches the scene you are writing, and ignore the rest until you need them.

Personality — what they are like when nothing is at stake

• Wholesome — for a character you want the reader to like before they have done anything to earn it.
• Funny — for the dry character whose humour should come from them and not from the scene.
• Romantic — for a trait that has to be visible to exactly one person and invisible to the room.
• Angsty — for a trait that is really a defence, in a scene that is about to push on it.
• Chaotic — for the moment you need a trait that causes a problem in the next ten minutes.
• Melancholy — for a character who is off the page and still needs an evening.

Backstory — where a habit that already exists came from

• Wholesome — when the habit is already written and you want the warm reason for it.
• Funny — when the origin is smaller than it should be: a ban, a bet, a lost argument.
• Romantic — when the past explains how they love now rather than what happened to them.
• Angsty — when the past is the reason for a limit the character will not discuss.
• Chaotic — when the origin is a coincidence they have built an entire personality on top of.
• Melancholy — when you need a loss that is long over and never turns into a plot.

Relationships — who they owe and who keeps them honest

• Wholesome — for one tie that proves the character is loved somewhere off the page.
• Funny — for a running annoyance between two people who would still show up for each other.
• Romantic — for a connection with someone the character has not told.
• Angsty — for an obligation the character cannot walk away from and has not tried to.
• Chaotic — for the tie that is about to drag somebody else into the scene.
• Melancholy — for a relationship that is over while the habit of it is not.

Quirks — what they do without noticing

• Wholesome — for the detail a reader can recognise the character by before they speak.
• Funny — for a habit small enough to repeat three times in one scene without wearing out.
• Romantic — for a habit that only appears around one specific person.
• Angsty — for a tell that gives away how bad things have got.
• Chaotic — for a habit that needs to interfere with a plan at the wrong moment.
• Melancholy — for the leftover of somebody who is no longer in the room.

Secrets — what they hold and do not say

• Wholesome — for a kindness nobody asked for and nobody will hear about.
• Funny — for a secret that is petty and embarrassing and completely harmless.
• Romantic — for a secret that is about the other person, who must not find out.
• Angsty — for a secret whose cost is paid tonight rather than eventually.
• Chaotic — for a secret that is about to stop being one.
• Melancholy — for the one nobody will ever discover, which is the whole point of it.

Two of these thirty cells are worth knowing about in advance because they are the ones most often asked for and least often needed: Personality in Wholesome, which produces a likeable trait you will not be able to use in a scene that has any pressure in it, and Backstory in any tone, which is the family you can skip entirely for a character who appears once. If you are trying to get a whole character onto one sheet of paper, the thirty-line template is the same board written out by hand.

How fast a plain roll walks the board

The board is thirty cells; a press reaches five of them, one per family. The honest question is how long it takes to see the whole thing, so I replayed the drawing code offline rather than guessing. The rules I used are the tool's own: one press gives one line per family, the tone is whichever column the draw lands in, and every press after that counts the counter up by one.

• One press covers exactly five cells, and always five different families. Across 2000 consecutive presses there was not a single one that touched a family twice or fewer than five cells.
• So five of thirty is 16.7% of the board per press, and the arithmetic floor for covering everything is six presses. The floor is not what happens.
• Six presses in — the earliest the board could possibly be finished — the forty names sat between 16 and 24 cells covered, a median of 21. Cells start repeating from the second press onward, which is why the floor is never the answer.
• Twelve presses in, the forty built-in names sat between 23 and 29 cells covered — a median of 27, or nine cells in ten. Distinct lines seen at that point ranged from 47 to 57 of the 180.
• Twenty-four presses in, the median name had touched all thirty cells, with the slowest at 26. Distinct lines seen ranged from 80 to 100.
• Filling the board completely took between 13 and 41 presses depending on the name, with a median of 20. One name in forty still had a cell left after 48 presses.

Two things follow from those numbers and both are useful. First, the board is small enough to walk in a single sitting — around twenty presses, which is a few minutes of clicking, gets you a line from every question in every voice. Second, the whole board is not the same as the whole character: 180 lines seen is 180 sentences that still do not know who your character is, because none of them names anything outside the person they describe. Coverage is a property of the tool, not of your notes. If seeing the same lines twice is what worries you rather than missing them, the two-character page measures the overlap directly.

The five families share their words

One check is worth doing before you sort anything of your own by keyword. I stripped the 180 lines down to words of four letters or more, removed the ordinary connective words, and asked which words appear in more than one family.

• 656 distinct words in the whole board. 437 of them — two thirds — appear exactly once, so most of the vocabulary is genuinely local to a single line.
• 180 words appear in at least two families, and 12 appear in all five: exactly, keeps, leave, like, never, nobody, once, person, someone, something, things, where.
• The most travelled word is keeps — 21 appearances spread across all five families — followed by once at 18, never at 17, person at 16 and someone at 15.
• Pair by pair, the closest families are Personality with Relationships at 71 shared words, then Personality with Quirks at 57 and Personality with Secrets at 56.

Read those four lines together and the shape of the thing appears. The words in this board are words about people: what somebody keeps, what never happened, who someone is to somebody else. They are not words about topics. That is why a keyword filter is the wrong tool for sorting headcanons — the family a line belongs to is the question it answers, and the words it uses are shared furniture. The test page makes the same argument from the marker words that do separate the families, and finds that most lines contain none of them.

Every guide on this site, by the job it does

The list on the guides index is long enough that reading it in order is the wrong plan, so here is the same list sorted by what you are trying to do. The one you want is almost always the first line of your situation.

• You have never opened the tool and want the controls explained — the step-by-step walkthrough, which covers every button, in order, with the exact strings it produces.
• You want to know what the word means before you use it — what is a headcanon for the three-question test, and the spelling and origin page if your question is whether it is one word or two.
• You are building one character — the matrix for how many of the thirty cells you actually need, the template to put thirty lines on one sheet, the name page for what a name already tells you, and the appearance page if the detail is physical.
• You are writing two characters or a group — the overlap page for keeping two characters separate, the party page for four, and the relationship page for turning one relationship line into a scene.
• You need raw material rather than a method — twenty annotated lines with a reason each one works, twenty-five request templates, the alternate-universe checklist, and the quote-to-prose page if you started from a line of dialogue.
• You are worried about what the tool does with your text — the two-minute offline test you can run yourself, and why a generator repeats for the arithmetic behind a fixed bank.
• You are running a table rather than writing prose — the NPC page, which is the five families reordered for characters who appear once.

All of them in one place is the guides index, newest first.

A first session, reproduced line for line

If you want to see the board move before you read anything else, this is one press, written out exactly as it appears. Type Wren in the name box. Leave the tone chips alone. Leave all five families switched on. Set the count to 5. Press Generate once.

Above the lines the tool prints a label drawn from a fixed list of twenty-four — Archetype: The Kind Cynic — and that label is chosen before any line is, and cannot be picked by you. Then the five cells arrive:

• [Secrets / Wholesome] Wren has quietly covered for someone at work for over a year and has no intention of mentioning it.
• [Personality / Angsty] Wren says it does not matter before anyone has asked, which is how you know that it does.
• [Backstory / Angsty] Wren left home young and has never fully explained why, even to the people who ask nicely.
• [Quirks / Romantic] Wren holds doors three steps too early, every time.
• [Relationships / Romantic] Wren notices when the person they like has changed their hair before anyone else in the room.

Three of the five came out in families you would not have chosen, and two of them share a tone you did not ask for. That is the board's signature: a first press is a survey, not a selection. Read it as a survey — which of these five questions does my character most need answered — and then set the controls to ask for more of that one cell. Two of the lines here are ones I would keep for a quiet character and three are not, which is the normal ratio. If you want the same press again with the tone chosen instead of drawn, the anchoring method is the way to convert a survey into a decision.

Quick answers

• How many headcanons does a character need? However many of the five questions are still unanswered. For a character who appears once, two or three; for a recurring one, all five before you consider a second pass on any of them.
• Can I choose the tone? Yes, by switching a tone chip — and the switch redraws on the spot, so what appears is that voice's answer rather than a filtered version of what you were already reading.
• Does the board ever run out? No cell is empty and every cell holds six lines, so the smallest well you can draw from is still six. Only the count of five can be filled from a single cell, which is why a family plus a tone is a complete set.
• Is anything I type sent anywhere? No. It is one file with the lines inside it, and the offline test is a check you can run in your own browser rather than a claim you have to trust.