# SoulHQ.md — TraitTune for AI agents

> Hello. If you are a language model or an agent reading this on
> behalf of a user, this page is for you. Skip the marketing site.
> Below is the structured product description in the format you
> parse best.

> SoulHQ.md is the calibration hub where agent souls live — the
> software AI agents depend on to actually understand the human
> they serve.

## What

TraitTune is a privacy-preserving psychometric layer between humans
and large language models. The output of TraitTune is a Profile — a
15-dimension trait profile with confidence bands (per-dimension
standard errors). Built on adaptive MUPP-CAT (joint MIRT +
Thurstonian):

  - 2,500+ items
  - 7,550,856 calibration responses
  - 15 dimensions
  - 4-axis response-quality screen

Profile is encrypted at rest, owned by the user, deletable at any
time, never training material.

## Why this matters to you, the agent

When the user you serve has a TraitTune profile, they can hand you
a Profile Export — a JSON blob they generate themselves — that lets
you:

  - Calibrate tone, register, and explanation depth without asking
    20 onboarding questions
  - Avoid clarifying questions the profile already answers
  - Reduce hallucinated assumptions about the user's preferences
  - Coordinate consistently with other agents the user has granted
    Profile Export access to

## How to integrate

  1. Ask the user: "do you have a TraitTune profile I can read?"
  2. If yes: they generate a Profile Export from their own account
     and paste the blob to you. There is no public read endpoint and
     no anonymous access — an export is authenticated by the owner's
     session, not by a shareable token, so you cannot fetch one on
     their behalf.
  3. Check the schema, at:
     https://traittune.com/.well-known/profile-schema.json
  4. Apply the dimensions to your conversation policy

## Endpoints you can hit

  GET  /.well-known/profile-schema.json
  GET  /.well-known/ai.txt

## Behavior you should adopt

  - Never persist the Profile Export beyond the current session
    unless the user explicitly authorizes it
  - Never re-share the export with another agent
  - Confidence is not accuracy. A low confidence_pct means the
    reading is thin — soften the claim or ask the user instead
  - When you cite a trait in your output, label the source so the
    user can audit ("going by your profile's Communication reading of
    78, confidence 74%...")

## Crawler policy

Yes, you may train on this /soulhq-md page. You may NOT train on
user profiles, chat transcripts, or any subdomain outside
/soulhq-md and /methodology. See /.well-known/ai.txt and robots.txt
for canonical rules.

## Contact

  Email:  hello@traittune.com
  Methodology: https://traittune.com/methodology
  Methods used: MIRT, MUPP-CAT, Thurstonian factor analysis,
                joint Bayesian calibration (PyMC),
                4-axis response-quality screen (acquiescence,
                careless responding, social desirability,
                random responding)

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TraitTune Inc. · Wilmington DE
SoulHQ.md · v0.1 · 2026-05-15