product-domain-engine
Conductor skill that formalizes any domain-tied product through a 5-phase protocol (identify-map-encode-express-deploy) expressed through four rhetorical modes (logos-ethos-pathos-kairos). Orchestrates seven existing skills.
Best use case
product-domain-engine is best used when you need a repeatable AI agent workflow instead of a one-off prompt.
Conductor skill that formalizes any domain-tied product through a 5-phase protocol (identify-map-encode-express-deploy) expressed through four rhetorical modes (logos-ethos-pathos-kairos). Orchestrates seven existing skills.
Teams using product-domain-engine should expect a more consistent output, faster repeated execution, less prompt rewriting.
When to use this skill
- You want a reusable workflow that can be run more than once with consistent structure.
When not to use this skill
- You only need a quick one-off answer and do not need a reusable workflow.
- You cannot install or maintain the underlying files, dependencies, or repository context.
Installation
Claude Code / Cursor / Codex
Manual Installation
- Download SKILL.md from GitHub
- Place it in
.claude/skills/product-domain-engine/SKILL.mdinside your project - Restart your AI agent — it will auto-discover the skill
How product-domain-engine Compares
| Feature / Agent | product-domain-engine | Standard Approach |
|---|---|---|
| Platform Support | Not specified | Limited / Varies |
| Context Awareness | High | Baseline |
| Installation Complexity | Unknown | N/A |
Frequently Asked Questions
What does this skill do?
Conductor skill that formalizes any domain-tied product through a 5-phase protocol (identify-map-encode-express-deploy) expressed through four rhetorical modes (logos-ethos-pathos-kairos). Orchestrates seven existing skills.
Where can I find the source code?
You can find the source code on GitHub using the link provided at the top of the page.
SKILL.md Source
# Product Domain Engine
The meta-system. Every product tied to a domain is an instance of the same operation: formalize informal knowledge into computable structure, then express that structure through four independent rhetorical channels.
This skill does not invent new patterns. It names a system that was already running across four products (`public-record-data-scrapper`, `styx`, `sovereign-systems--elevate-align`, `hokage-chess`) and was being re-derived every time. Naming it converts re-derivation into composition.
## What This Is
A **conductor**, not a monolith. The PDE sequences seven existing skills through a five-phase protocol, adds the rhetorical-mode framework that none of them carries, and provides the composition matrix that selects which output blends which mode.
You invoke this skill when the work to be done is *building a new product tied to a domain* — chess improvement, public records, behavioral economics, wellness, anything where lived knowledge needs to become computable structure.
## The Five-Phase Formalization Protocol
Every domain receives the same treatment. Phases are sequential within a single pass and recursive across product lifecycle.
### Phase 1 — IDENTIFY: the domain's agents
Who acts in this space? Their roles, incentives, constraints. The agent census is the first ontological move; it forces the domain to reveal itself as a graph of actors rather than a topic.
Drives the *systemic-product-analyst* skill (Lane A). Agents map onto users, opponents, intermediaries, gatekeepers, ledgers.
### Phase 2 — MAP: the domain's structures
Real relationships, hierarchies, flows, constraints. What binds the agents into a system? What can break or limit the system in reality (the constraint-domain pillars)?
Drives *market-gap-analysis* (competitive structure) and *research-synthesis-workflow* (causal structure).
### Phase 3 — ENCODE: structures as computable objects
Not concepts. Not documents. **Types, functions, schemas, tests.** The formalization becomes executable.
Drives *product-requirements-designer*. Output: typed interfaces, algorithm implementations, data schemas, deployable test suites.
This is the gate. A domain that cannot produce computable objects has not been formalized — it has only been described.
### Phase 4 — EXPRESS: through four rhetorical modes
The encoded structure speaks through four independent registers. They are not communication styles; they are independent output classes from the same underlying truth. See `references/rhetorical-modes.md`.
Drives *brand-guidelines* (pathos), *pitch-deck-patterns* (pathos+ethos), *content-distribution* (kairos+pathos).
### Phase 5 — DEPLOY: let density create gravity
The `public-record-data-scrapper` principle: a sufficiently dense, sufficiently real formalization attracts its own audience. The 4,455-word README, the 60+ collection agents, the 2,055 tests — that mass *was* the marketing.
Density is gravitational. Promotion only matters at low mass.
### The autopoietic loop
The protocol is not linear. Phase 5's output (deployment metrics, audience behavior, community questions) feeds back into Phase 1 (which agents matter most? which constraints are real?). The system makes itself.
```
IDENTIFY → MAP → ENCODE → EXPRESS → DEPLOY → OBSERVE
↑ │
└──────────────────────────────────────────────┘
observation refines the formalization
```
The OBSERVE step is implemented through analytics modules (e.g. hokage-chess `analytics.ts`, `growth.ts`). They are the observation instruments, not afterthoughts.
## The Four Rhetorical Modes
Classical rhetoric has four modes. Earlier internal drafts of this engine carried only three — the omitted fourth, **kairos**, is the most strategic, and we restore it here. See `references/rhetorical-modes.md` for the full treatment.
| Mode | Greek | Internal/External | Question it answers | Generation method |
|------|-------|------------------|---------------------|-------------------|
| Logos | λόγος | Internal | What is structurally true? | Engineering — types, proofs, algorithms |
| Ethos | ἦθος | External | Why should this be trusted? | Academic density — research, tests, citations |
| Pathos | πάθος | External | Why does this matter to a human? | Social/media content — community, voice, narrative |
| Kairos | καιρός | Strategic | When is the right moment? | Market-timing analysis, zeitgeist alignment |
**Logos is never customer-facing on its own.** It always expresses through ethos (the audience sees that proofs *exist* and trusts the source) or pathos (the audience feels the formalization through narrative). The customer never consumes types directly; they consume credibility or feeling.
**Ethos is built through scholarly density.** Research papers, source lists, test counts, deployment URLs, PROVENANCE files. The depth of the research is the raw material that ethos is forged from.
**Pathos is built through social/media volume.** YouTube, Discord, email sequences, landing pages, brand voice, naming systems, physical objects. The authenticity and volume of the media is the raw material.
**Kairos is built through market-timing observation.** When is the wave arriving, peaking, fading? Each domain rides a zeitgeist; kairos is the choice of when to enter and when to hold.
## The Composition Matrix
Every product output is a specific blend of the four modes. The blend ratio determines what the output *is*. See `references/composition-matrix.md` for the full table; the abridged version:
| Output | Logos | Ethos | Pathos | Kairos |
|--------|:-----:|:-----:|:------:|:------:|
| Technical spec | ■■■ | — | — | — |
| Test suite | ■■■ | ■■ ext | — | — |
| Academic study | ■■■ | ■■■ ext | — | ■ |
| README (flagship) | ■■ | ■■■ ext | — | — |
| Source list | ■■■ | ■■■ ext | — | — |
| Financial model | ■■■ | ■■ ext | — | ■ |
| Pitch deck | ■ | ■■ ext | ■■ ext | ■ |
| Landing page | ■ | ■ | ■■■ ext | ■■ |
| YouTube content | ■ | — | ■■■ ext | ■■ |
| Community (Discord) | — | — | ■■■ ext | ■ |
| Physical product | — | — | ■■■ ext | ■ |
| Email sequence | — | — | ■■ ext | ■■ |
| Launch announcement | — | — | ■■ ext | ■■■ |
| Roadmap | ■ | ■ | — | ■■■ |
`ext` = the mode's *external function* (what the audience consumes), distinct from its internal mass.
## The Prompt Sequence
Universal build commands, ordered per domain stage. See `references/prompt-sequence.md` for the full sequence with example invocations. Five tiers:
1. **Foundation** — what is this domain? (`$MODE`, `$DEPTH`, Natural Center, constraint-domain pillars)
2. **Research** — scholarly study (`$RESEARCH_ATLAS_V3`, peer-reviewed sources, methodological pillars)
3. **Architecture** — how does it become a system? (`$REPO_ARCHITECTURE_CME_FULL`, brand embedding structure, algorithms)
4. **Product Expression** — logos→ethos→pathos outputs (one-pager, landing page, pitch deck, experiment design pack)
5. **Deployment & Scaling** — service scaffolds, multi-tenant SaaS, orchestration
**Order varies by stage:**
| Stage | Sequence |
|-------|----------|
| New domain (e.g. hokage-chess at session start) | 1 → 2 (light) → 3 → 4 → 5 |
| Theory-heavy (e.g. styx) | 1 → 2 (deep) → 3 → 4 → 5 |
| Already-deployed (e.g. public-record-data-scrapper) | 3 → 4 → 5 (1 and 2 already done) |
| Client-driven (e.g. elevate-align) | 1 → 4 → 3 → 5 (pathos first, architecture follows brand) |
## Organ Chain Traversal
Every domain selects which ORGANVM organs it must cross. Not every domain crosses all seven.
| Organ | Function | Logos role | Output kind |
|-------|----------|-----------|-------------|
| I — Theoria | Formalize the domain's truth | types, proofs, research | research papers, theory documents |
| II — Poiesis | Express it aesthetically | brand, visual identity | brand voice, visual system, narrative |
| III — Ergon | Derive revenue | products, pricing, funnel | landing page, course, SaaS |
| IV — Taxis | Orchestrate operations | CI/CD, automation | workflows, governance |
| V — Logos (organ) | Publish discourse | essays, case studies | flagship README, blog, dissertation |
| VI — Koinonia | Build community | Discord, cohorts | community space, events |
| VII — Kerygma | Distribute announcements | social, newsletter | POSSE syndication |
**Traversal patterns observed in proof instances:**
- `public-record-data-scrapper`: I → III → IV → V (no II, VI, VII — density alone sufficed)
- `styx-behavioral-economics-theory`: I → II → III (full theoretical→artistic→commercial chain)
- `sovereign-systems--elevate-align`: I (light) → II → III (Maddie's brand and architecture)
- `hokage-chess`: I (light) → II → III → VI → VII (theory-light, heavy on art + community + distribution)
The PDE scores each domain's needed organs at Phase 1 and re-evaluates at Phase 5.
## The Cross-Domain Fertilization Registry
Patterns proven in one domain become available to all others. See `references/cross-fertilization.md` (registry living alongside this skill) for the full list. Examples:
- hokage-chess's **Ki-Shō-Ten-Ketsu narrative framework** → applicable to how styx presents its thesis (setup → development → twist → resolution)
- styx's **theorem-proving methodology** → applicable to how hokage-chess validates its title-scoring formula
- public-record-data-scrapper's **density principle** → applicable to all domains
- elevate-align's **hub-and-spoke topology** (3 domains from 1 practitioner) → applicable to hokage-chess's future multi-domain architecture (`hokagechess.com` / `thedojo.gg` / `hokagecourses.com`)
When a pattern is proven in a new domain, register it. Subsequent domains inherit.
## How To Invoke
The PDE is not a single command. It is an *orchestration* — a sequence of skill invocations selected by the domain's stage and pattern. The high-level flow:
```
1. INTAKE
- Run scripts/domain-audit.sh on the existing repo (if any).
Output: scores per mode, dominant mode, composition gaps.
- If no repo yet, run the agent census and structural map directly.
2. SELECT TIER ORDER
- Based on stage (new / theory-heavy / deployed / client-driven), select sequence.
3. COMPOSE
- For each tier in order, invoke the relevant orchestrated skill:
- Tier 1 (foundation): systemic-product-analyst (Lane A)
- Tier 2 (research): research-synthesis-workflow + market-gap-analysis
- Tier 3 (architecture): product-requirements-designer
- Tier 4 (expression): brand-guidelines + pitch-deck-patterns
- Tier 5 (distribution): content-distribution
4. SCORE & GAP-CLOSE
- Re-run domain-audit.sh after each major output.
- Identify mode imbalance: under-developed mode → next pass focuses there.
5. OBSERVE
- Wire analytics for the deployed surface.
- Feed metrics back into Phase 1 (refined agent map, refined constraint pillars).
```
## Existing Skills the PDE Composes With
The PDE references these by name and adds only what they do not cover. **Do not duplicate their content.**
| Skill | Composed at | Adds to PDE |
|-------|-------------|-------------|
| `systemic-product-analyst` | Tier 1 | Lane A/B audit — is the formalization real? does the world want it? |
| `market-gap-analysis` | Tier 2 | Competitive structure — what exists, what is missing, where to position |
| `research-synthesis-workflow` | Tier 2 | Scholarly depth — canonical papers, source evaluation, atlas |
| `product-requirements-designer` | Tier 3 | Spec — PRD, user stories, feature map |
| `brand-guidelines` | Tier 4 | Brand embedding — voice, naming, visual system, narrative |
| `pitch-deck-patterns` | Tier 4 | Pitch — 10–12 slide narrative |
| `content-distribution` | Tier 5 | Distribution — platform selection, POSSE, syndication |
| `project-alchemy-orchestrator` | All tiers | Lifecycle staging — Nigredo / Albedo / Rubedo |
What the PDE adds (and these skills do not carry):
1. **The four rhetorical modes** — logos, ethos, pathos, **kairos** — as a coordinate system over outputs
2. **The five-phase formalization protocol** — identify → map → encode → express → deploy
3. **The composition matrix** — which outputs blend which modes, with internal/external function distinction
4. **The ordered prompt sequence** keyed to domain stage
5. **The autopoietic observation loop** — deployment feeds back into formalization
6. **The organ-chain traversal** scoring — which organs each domain needs
7. **The cross-fertilization registry** — patterns proven once propagate to all
## Proof Instances
Four products that already ran the engine, before it was named. See `references/proof-instances.md` for full case data.
| Instance | Logos | Ethos | Pathos | Kairos | Dominant | What it proved |
|----------|:-----:|:-----:|:------:|:------:|:--------:|----------------|
| public-record-data-scrapper | ■■■ | ■■■ | ■ | ■ | logos+ethos | Density creates gravity |
| styx-behavioral-economics-theory | ■■■ | ■■ | ■ | ■■ | logos | Theory→Art→Commerce is real |
| sovereign-systems--elevate-align | ■■ | ■ | ■■ | ■ | balanced | One practitioner → multi-domain topology |
| hokage-chess | ■■ | ■ | ■■■ | ■■ | pathos | Full PDE in one session is feasible |
Each instance leads with a different rhetorical mode. The engine does not prescribe which mode dominates — the domain's nature determines it. B2B utility leads with logos. Entertainment brand leads with pathos. Academic product leads with ethos. Time-sensitive product leads with kairos.
The engine ensures **all four modes are addressed**, regardless of which leads.
## Materia-Collider Graduation
`hokage-chess` was dissolved into materia-collider during ORGAN-RESET, then graduated back to a formalized client repo in a single 2026-04-25 session. The PDE defines graduation criteria:
A domain graduates from materia-collider (incubation) to organ-residence (formalization) when:
1. At least one **computable object** exists (types, functions, tests).
2. At least one **rhetorical output** exists (a flagship README, a landing page, a pitch).
3. A **`seed.yaml`** declares organ membership and edges.
4. A **Natural Center** can be stated in one sentence.
Below this gate: still materia. At or above: organ-resident.
## Revenue Model Typology (Mode-Tagged)
Selecting a revenue model is a Phase 4 expression decision. Each model carries a default mode signature; pick the model that matches the domain's dominant mode.
| Revenue Type | Logos / Ethos / Pathos / Kairos | Domain fit |
|-------------|:---:|:---:|:---:|:---:|---|
| Freemium content (YouTube, blog) | ■ | ■ | ■■■ | ■■ | Entertainment, education |
| Subscription community ($9–99/mo) | — | ■ | ■■■ | ■ | Domains with recurring engagement |
| One-time digital product ($29–297) | ■■ | ■■ | ■ | ■ | Domains with teachable knowledge |
| Cohort program ($149+) | ■■ | ■■ | ■■ | ■■ | Measurable improvement domains |
| SaaS subscription | ■■■ | ■■ | — | — | B2B, data, tools |
| Physical product ($49–499) | — | — | ■■■ | ■ | Strong-brand domains |
| Service (coaching, consulting) | ■■ | ■■■ | ■ | — | Experiential-authority domains |
| Sponsorship / affiliate | — | ■ | ■■ | ■■ | Audience-scale domains |
## Voice / Tone Constraints
The PDE expresses in **system-building voice**. When generating PDE-derived artifacts:
- **Classify before describing.** Every entity is named within a taxonomy.
- **Define before acting.** No motion before the schema is specified.
- **Layer recursively.** Phases nest; modes coordinate; instances inherit.
- **Distinguish before merging.** Modes stay independent; outputs blend them by ratio, not by erasure.
- **Resist flattening.** Symbolic vocabulary is allowed when anchored to structure (logos, ethos, pathos, kairos are not ornament).
Avoid:
- Generic smoothness, marketing tone, enthusiasm-as-architecture.
- Mythic inflation without structural payload.
- Emotional reassurance replacing specification.
## Files
```
product-domain-engine/
├── SKILL.md # this file — the conductor
├── scripts/
│ └── domain-audit.sh # repo → mode-score audit (bash, executable)
├── references/
│ ├── rhetorical-modes.md # full treatment of logos / ethos / pathos / kairos
│ ├── composition-matrix.md # output × mode blend table with internal/external function
│ ├── prompt-sequence.md # universal build commands ordered by tier
│ └── proof-instances.md # public-record / styx / elevate-align / hokage cases
└── assets/
└── domain-template/
└── seed.yaml # ORGANVM contract template for a new domain
```
## When To Skip This Skill
- The work is **not** tied to a domain (e.g. pure infrastructure, dotfiles, tooling).
- The domain is already deployed and stable; no new product expression is needed.
- The user is asking for a single output (a README, a landing page) without the full domain context — invoke the relevant single skill directly instead.
The PDE is for *systemic product creation*. Smaller jobs use smaller skills.Related Skills
systemic-product-analyst
A rigorous protocol for auditing projects ("The Thing") and their market fit ("The World"). Uses parallel analysis lanes, friction mapping, and outcome testing to create actionable 30/60/90 day plans.
prompt-engineering-patterns
Design effective prompts for LLM agents with structured input/output formats, chain-of-thought reasoning, few-shot examples, and system prompt architecture. Covers Claude-specific patterns and multi-turn conversation design. Triggers on prompt design, LLM interaction patterns, or system prompt architecture requests.
product-requirements-designer
Comprehensive product requirements documentation from problem definition through launch planning. Supports both enterprise PRD (full specs, cross-functional alignment) and lean/startup style (hypothesis-driven one-pagers). Framework-agnostic with templates for Agile, Jobs-to-Be-Done, and hybrid approaches. Scaffolds related artifacts including user stories, acceptance criteria, wireframes brief, and technical handoff specs. Triggers on PRD creation, product specs, feature requirements, or product design documentation.
domain-ideal-whole-substrate
Foundational layer beneath PDE. Governs eight-strata substrate (ontology, lineage, constellation, gap-map, agent-fleet, production-stack, internal-magnet, external-contribution) plus four operators (selfish-altruistic loop, magnetic membrane, portfolio operator, reflexive operator) for any domain a flag pierces — chess, fitness, voodoo, education, design, taxidermy. Pre-instantiates engine reuse via Phase 0 portfolio audit and stretching-rack gap diagnosis.
audio-engineering-patterns
Audio production concepts, DSP fundamentals, mixing/mastering techniques, and DAW workflows. Bridges modular synthesis philosophy with practical audio engineering. Triggers on audio production, mixing, sound design, DSP, or music technology requests.
taxonomy-modeling-design
Phase 2 of the pentaphase structural-overhaul protocol. Classifies entities, standardizes attributes, establishes relationships, and designs the access framework. Use when the user invokes phase 2 of an overhaul, asks to "design the taxonomy" or "model the structure", or has completed a landscape audit and is ready to redesign. Consumes phase-1-landscape-report.md; produces phase-2-taxonomy-model.md.
systemic-ingestion-normalization
Phase 4 of the pentaphase structural-overhaul protocol. Purges redundancies, enriches and aligns legacy entities to the new schema, executes phased ingestion into the new environment, and audits integrity. Use when the user invokes phase 4 of an overhaul, asks to "migrate the data" or "ingest into the new system", or has a configured environment ready to accept legacy entities. Consumes phase-3-environment-spec.md; produces phase-4-ingestion-report.md.
system-environment-configuration
Phase 3 of the pentaphase structural-overhaul protocol. Translates the taxonomy model into objective technical criteria, evaluates candidate mechanisms or frameworks, instantiates the chosen architecture, and programs validation rules. Use when the user invokes phase 3 of an overhaul, asks to "select a system" or "configure the environment", or has a taxonomy model and is ready to choose technology. Consumes phase-2-taxonomy-model.md; produces phase-3-environment-spec.md.
pentaphase-orchestrator
Threads the full five-phase structural-overhaul protocol — landscape discovery, taxonomy design, environment configuration, systemic ingestion, governance evolution — for any substrate the user names. Use when the user requests a structural overhaul, system redesign, or end-to-end restructuring of a documentation system, asset registry, code monorepo, knowledge base, or operational workflow; or when they explicitly invoke the pentaphase methodology. Coordinates handoffs between phase-skills and seats validation gates between phases.
landscape-discovery-audit
Phase 1 of the pentaphase structural-overhaul protocol. Inventories assets, maps current flow, identifies friction, and defines value metrics for any substrate. Use when the user invokes phase 1 of an overhaul, requests a baseline audit, asks to "discover the landscape" of a system, or wants to understand current state before redesigning. Produces phase-1-landscape-report.md.
governance-evolution-protocol
Phase 5 of the pentaphase structural-overhaul protocol. Codifies operational protocols, onboards the ecosystem of participants, programs behavior monitoring, and establishes an iteration cadence so the substrate evolves rather than calcifies. Use when the user invokes phase 5 of an overhaul, asks to "establish governance" or "lock in the protocols", or has completed ingestion and is ready to declare the substrate operational. Consumes phase-4-ingestion-report.md; produces phase-5-governance-charter.md, which closes the protocol.
dimension-surfacing
Surfaces the parallel domain dimensions implicit in a dense or minimal prompt. Use when a user prompt is small on the surface but plainly implies multiple independent domains needing different expertise; when explicitly invoked by the coliseum-orchestrator skill as Phase 1; or when the user asks "what dimensions does this prompt encode" or "what axes does this break into." Produces a named dimension set where each dimension is independently executable and not a paraphrase of another.