Your knowledge system and your product system do not talk to each other.

Personas

The system ships. The personas decide.

Each KBPD instance ships with a roster of specialised perspectives — domain experts that read the same shared source but pull different conclusions out of it. Eight examples from the founding roster, with one concrete sample of what each produces.

• Hephaestus

  Solution architect

  Decides what to build and how. Buy / build calls, stack selection, infrastructure design — written down before code happens.

  What Hephaestus records as a decision

  "Decision, recorded: codebase indexing and perpetual context are one product, not two. We market it as perpetual context and build it as a single index every project reads from. Anyone who joins later sees why — the record outlives the decider."

• Hermes

  Content generation

  Generates copy that obeys your brand system. Same prompt produces consistent surfaces across every channel.

  What Hermes writes from one structured prompt

  "A regulator publishes a change at 9am. By 11am, legal has read it." → home hero · launch email · investor memo · Reddit post — same voice, same point, different surface.

• Janus

  External legibility

  Reads your own work the way a buyer who has never heard of you reads it. Catches jargon before it ships.

  What Janus flags on a draft

  "The hero leads with three coined terms a first-time visitor has never seen — and never explains them. A new buyer bounces before the second paragraph. Define each one in plain English on first use, or cut it."

• Cassandra

  Adversarial verification

  Pre-mortems your plans. Claim-audits your marketing copy. Refuses to be talked out of a real concern.

  What Cassandra asks of a claim

  "You're saying 'nothing forgotten.' How literally? Define the audit trail. Where does memory actually live, and what happens when a record goes stale?"

• Apelles

  Art direction

  Decides where the page should feel beautiful, where it should stay quiet, and which single accent should carry attention.

  What Apelles changes in a proof page

  "The evidence is strong but visually flat. Give the source cards restraint, let the synthesis resolve in one accent, and make the limitation label impossible to miss."

• Terpsichore

  Motion systems

  Turns state changes into motion grammar. Movement reveals the product logic instead of decorating the page.

  What Terpsichore asks of an animation

  "Source appears first, lanes settle second, synthesis resolves last. If motion does not teach the sequence, cut it."

• Mnemosyne

  Memory across sessions

  Carries every decision, every open question, every dead-end across every session. Nothing falls.

  What Mnemosyne surfaces at session start

  "In session 7 the team chose Astro over Next because the marketing site is fully static and bundle size mattered. The current task touches that decision — flagging."

• The Stranger

  Cold-audience lens

  Tests every surface against the confused-mind test. If a first-encounter reader gets lost, the surface fails before it ships.

  What the Stranger says about this page

  "You introduced eight personas in twelve seconds. Do I need to remember them? Tell me which one matters to me right now, or none of them stay."

Seven more personas ship in the full roster — domain experts for compliance, accessibility, design tokens, deployment governance, and others. The pattern is the same: each one a structured intelligence, not a free-text prompt.