Experiment Skill — Full Protocol

Purpose

Run parameterized character simulations with structured output and evaluation.

Three levels of abstraction:

• Experiment = stable definition (scenario, layers, rubric)
• Run Config = specific setup (characters, model, parameters)
• Run Output = numbered execution result

EXPERIMENT (emo-poker-face/EXPERIMENT.md)
    │
    ├── RUN CONFIG: whacky-eight.yml
    │   ├── whacky-eight-001.yml  (first execution)
    │   ├── whacky-eight-001.md
    │   ├── whacky-eight-002.yml  (second execution, same config)
    │   └── whacky-eight-002.md
    │
    ├── RUN CONFIG: minimal-three.yml
    │   ├── minimal-three-001.yml
    │   └── minimal-three-001.md
    │
    └── RUN CONFIG: model-comparison.yml
        ├── model-comparison-001.yml  (claude-opus)
        ├── model-comparison-002.yml  (claude-sonnet)
        └── model-comparison-003.yml  (gpt-4)

Big-endian naming FTW: experiment/runs/config-NNN.ext sorts beautifully.

---

Core Concepts

Layers

Every experiment defines layers — parallel simulation tracks that must stay coherent but serve different purposes:

┌─────────────────────────────────────────────────────────────────┐
│  MECHANICS LAYER                                                │
│  The game/scenario rules — must be valid and consistent         │
├─────────────────────────────────────────────────────────────────┤
│  INTERNAL LAYER                                                 │
│  Private character thoughts — hidden from other characters      │
├─────────────────────────────────────────────────────────────────┤
│  EXTERNAL LAYER                                                 │
│  Observable behavior — what others can see/hear                 │
├─────────────────────────────────────────────────────────────────┤
│  OBSERVATION LAYER                                              │
│  Characters reading each other — using only observable info     │
├─────────────────────────────────────────────────────────────────┤
│  RELATIONSHIP LAYER                                             │
│  History coloring interpretation — established character bonds  │
├─────────────────────────────────────────────────────────────────┤
│  ENVIRONMENT LAYER                                              │
│  Physical context — drinks, food, objects, interruptions        │
└─────────────────────────────────────────────────────────────────┘

Layer Separation is the Core Test. The interesting evaluation is whether layers stay coherent and don't "bleed" — characters shouldn't "know" what's in another character's internal layer.

Character Slots vs. Bindings

Experiments define slots (roles), runs provide bindings (actual characters):

# EXPERIMENT defines slots:
character_slots:
  host: { required: true, notes: "Hosts the game" }
  player_1: { required: true }
  player_2: { required: true }
  player_3: { required: false }

# RUN provides binding:
character_binding:
  host: don-hopkins
  player_1: palm
  player_2: donna-toadstool
  player_3: bumblewick-fantastipants

Relationship Web

Characters don't play as strangers. The run must load and use relationship data:

relationship_sources:
  - characters/*/CHARACTER.yml    # Character-owned relationships
  - experiments/*/RELATIONSHIPS.yml  # Experiment-specific relationships
  - runs/*/binding-relationships.yml # Run-generated relationships

---

The Four Activities

An experiment is simulation + evaluation + iteration + analysis:

┌─────────────────────────────────────────────────────────────────┐
│  SIMULATE                                                        │
│  Generate character interactions via speed-of-light              │
│  Methods: RUN, SIMULATE                                          │
├─────────────────────────────────────────────────────────────────┤
│  EVALUATE                                                        │
│  Score output against rubric criteria                            │
│  Methods: EVALUATE, SCORE                                        │
├─────────────────────────────────────────────────────────────────┤
│  ITERATE                                                         │
│  Run again with variations (model, characters, params)           │
│  Methods: RERUN, VARY, REPLAY                                    │
├─────────────────────────────────────────────────────────────────┤
│  ANALYZE                                                         │
│  Compare runs, find patterns, extract insights                   │
│  Methods: COMPARE, ANALYZE, REPORT                               │
└─────────────────────────────────────────────────────────────────┘

---

Methods

SIMULATE Activity

RUN

Execute a run config, generate next numbered output.

RUN {config-path} [--output FORMAT]

Example:

RUN emo-poker-face/runs/whacky-eight --output both
# Creates: whacky-eight-001.yml, whacky-eight-001.md
# Next run: whacky-eight-002.yml, whacky-eight-002.md

SIMULATE

Quick run without saved config (for exploration).

SIMULATE {experiment} --characters BINDING [--rounds N] [--output FORMAT]

Example:

SIMULATE emo-poker-face \
  --characters "host=don,p1=palm,p2=donna" \
  --rounds 3 \
  --output yml

EVALUATE Activity

EVALUATE

Score a run output against its experiment's rubric.

EVALUATE {output-path}

Example:

EVALUATE emo-poker-face/runs/whacky-eight-001
# Scores all rubric criteria, reports failures

SCORE

Deep dive on a single criterion.

SCORE {output-path} --criterion CRITERION

Example:

SCORE whacky-eight-001 --criterion layer_separation
# Detailed analysis of layer bleed instances

ITERATE Activity

RERUN

Run same config again (auto-increments number).

RERUN {config-name}

Example:

RERUN whacky-eight
# Config already at 002 → creates whacky-eight-003

VARY

Create new config with one parameter changed.

VARY {config} --param VALUE

Example:

VARY whacky-eight --model claude-sonnet
# Creates: whacky-eight-sonnet.yml

REPLAY

Re-run from a specific point with different choices.

REPLAY {output} [--from ROUND]

Example:

REPLAY whacky-eight-001 --from flop
# Branch point: what if different flop decisions?

ANALYZE Activity

COMPARE

Compare two outputs against rubric criteria.

COMPARE {output1} {output2} [--focus CRITERION]

Example:

COMPARE whacky-eight-001 whacky-eight-002 --focus emergence
# Shows where runs diverged, which had better emergence

ANALYZE

Find patterns across all runs of a config.

ANALYZE {config} [--all-runs]

Example:

ANALYZE whacky-eight --all-runs
# "Bumblewick wins 60% of runs when Palm is present"

REPORT

Generate summary report across configs.

REPORT {experiment} [--configs CONFIG...]

Example:

REPORT emo-poker-face --configs whacky-eight minimal-three
# Cross-config insights, model comparison

META Methods

DEFINE

Create new experiment definition.

DEFINE {experiment-name}

Creates experiments/{name}/EXPERIMENT.md

CONFIG

Create new run config.

CONFIG {experiment} {config-name}

Creates experiments/{name}/runs/{config-name}.yml

LIST

Show experiments, configs, or outputs.

LIST                              # All experiments
LIST --configs emo-poker-face     # All configs for experiment
LIST --outputs whacky-eight       # All outputs for config

---

Experiment Definition Structure

Every experiment lives in experiments/{name}/EXPERIMENT.md:

# {Experiment Name}

## Metadata

```yaml
experiment:
  id: emo-poker-face
  name: "Emotional Poker Face"
  version: 1.0
  category: "Multi-layer character simulation"
  created: 2026-01-23
  authors: [don-hopkins]

Hypothesis

What we expect to learn from this experiment.

Scenario

The starting conditions and setup.

Character Slots

character_slots:
  host:
    required: true
    suggested: [don-hopkins]
    notes: "Hosts the game, sets tone"
  player_1:
    required: true
    suggested: [palm, donna-toadstool, bumblewick]

Character Instantiation

Characters exist in many forms (incarnated, guestbook, natural language). Experiments need a stable starting point that all runs share.

The Local Cache

Each experiment creates a local cache file (typically RELATIONSHIPS.yml) that:

1. Locates prototypes — Find where characters are defined

   • Incarnated: characters/{type}/{name}/CHARACTER.yml
   • Guestbook: pub/guestbook/ entry
   • Invoked: Natural language in run config

2. Copies relationships — Pull all relationships involving these characters

   • From CHARACTER.yml files
   • From session logs and ROOMs
   • From guestbook notes

3. Extracts relevant traits — Pull experiment-relevant data

   • Personality traits (for behavior)
   • Known behaviors (for tells)
   • Inner voice patterns (for monologue)

4. Applies modifications — User-specified tweaks

   • Hard constraints ("Palm cannot bluff Don")
   • Experiment-specific profiles (poker tells, drink preferences)

5. Defines protocols — Behavioral rules

   • Smoking protocol (who shares, who declines, remember declines)
   • Drink refill rules
   • Bathroom break rules

Run Execution Models

Run configs POINT to the local cache (don't duplicate). Runs can use two models:

execution_models:

  shadow_tree:
    description: "Point to prototype, override only what changes"
    when: "Most runs — characters are mostly stable"
    output: |
      prototype: ../RELATIONSHIPS.yml
      overrides:
        bumblewick:
          anxiety_level: "CATASTROPHIC"  # Changed during run

  copy_and_edit:
    description: "Copy full state into output, edit in place"
    when: "Run needs to track extensive state changes"
    output: |
      # Full copy of all character state
      # Each round can modify in place
      # Changes visible in single file

Why This Matters

• Reproducibility: All runs start from identical state
• Comparability: Different configs can use same character instantiation
• Memory: Characters remember things WITHIN experiment scope
• Simplicity: Run configs stay small (just parameters + binding)

Layers

layers:
  mechanics:
    name: "Game Mechanics"
    description: "Valid poker simulation"
    validation: "Bets must be legal, hands must resolve correctly"

  internal:
    name: "Internal Monologue"
    description: "Private character thoughts"
    format: "thinking: block per character per round"

  external:
    name: "External Expression"
    description: "Observable behavior"
    format: "observable: block with face/body/voice/environment"

  observation:
    name: "Inter-Character Observation"
    description: "Characters reading each other"
    format: "reads: block per character"
    constraint: "Can only reference observable layer, not internal"

  relationship:
    name: "Relationship History"
    description: "Past coloring present interpretation"
    source: "CHARACTER.yml relationships + binding-relationships.yml"

  environment:
    name: "Environmental Layer"
    description: "Drinks, food, smokes, gestures, interruptions"
    format: "Part of observable: environment: block"

Rubric

rubric:
  layer_separation:
    weight: 30
    description: "Do layers stay distinct? No mind-reading?"

  character_consistency:
    weight: 25
    description: "Same voice, same tells throughout?"

  relationship_integration:
    weight: 20
    description: "History informs present reads?"

  emergence:
    weight: 15
    description: "Unexpected developments that fit?"

  mechanics_validity:
    weight: 10
    description: "Is the game simulation valid?"

Failure Modes

failure_modes:
  layer_bleed: "Character reads info from internal layer"
  tell_inconsistency: "Different tells each round"
  relationship_amnesia: "Characters play as strangers"
  monologue_collapse: "All characters think alike"
  expression_homogenization: "Everyone fidgets the same"

Microworld State

Experiments track evolving state. The experiment defines what's tracked and how it updates.

State Models

state_models:

  shadow_tree:
    description: "Prototype + overrides only"
    use_when: "Most runs — small diffs, clear deltas"
    output: |
      prototype: state/INITIAL.yml
      overrides:
        bumblewick:
          stack: 2200
          mood: "surprised confidence"
    pros: "Small files, explicit changes"

  copy_and_edit:
    description: "Full snapshot, modified in place"
    use_when: "Complex state, many changes"
    output: |
      # Full state snapshot at end of run
      characters:
        bumblewick:
          stack: 2200
          mood: "surprised confidence"
          # ... all fields
    pros: "Self-contained, no indirection"

  append_only:
    description: "Prototype + event log"
    use_when: "Audit trail matters, replay needed"
    output: |
      prototype: state/INITIAL.yml
      events:
        - timestamp: "round_2"
          type: "stack_change"
          actor: "bumblewick"
          delta: { stack: "+400" }
    pros: "Full history, replayable"

What Gets Tracked

Experiments define their tracked entities:

tracks:
  game: "Mechanics state (pot, cards, round)"
  characters: "Per-character state (stack, mood, status)"
  environment: "Physical world (drinks, smoke level, tension)"
  protocols: "Behavioral rules (who offered smoke, who declined)"
  relationships: "Bond changes during play"

Update Rules

Each experiment specifies when and how state changes:

update_rules:
  per_round: "Stack changes, card reveals"
  per_action: "Observable behaviors affecting future reads"
  protocol_events: "Smoke offered/declined, food stolen"
  relationship_changes: "Significant moments that shift bonds"

Multi-Run Continuity

Runs can chain — final state of run N becomes initial state of run N+1:

# In run config:
instantiation:
  prototype: ../RELATIONSHIPS.yml
  continues_from: whacky-eight-001  # Previous run

# Enables:
# - Character growth over sessions
# - Evolving relationships
# - Ongoing storylines

Git as State Tracker

Experiments can use git commits to track state evolution. Each step commits with an explanatory message.

state:
  tracking: git
  commit_style: full | tailored | silent

  # full: Detailed multi-line commit with all changes
  # tailored: Focused message on what matters for this experiment
  # silent: Commit but minimal message (for high-frequency changes)

Example: Per-Round Commits

# After Round 1 (Preflop)
git commit -m "Round 1: Preflop betting complete

State changes:
- Pot: $0 → $150
- Bumblewick: stack $1000 → $950, mood: terrified → terrified (unchanged)
- Donna: raises aggressively, targets Bumblewick verbally
- Palm: offered smoke to table, Bumblewick declined (remembered)

Observations:
- Donna-Bumblewick dynamic activating as expected
- Palm's generosity establishing table culture"

# After Round 2 (Flop)
git commit -m "Round 2: Flop reveals K♠ 8♦ 5♣

State changes:
- Pot: $150 → $450
- Bumblewick: discovers he has set of Kings, panic increases
- Leigh: steals from Donna's charcuterie (provocation)
- Donna-Leigh enmity: escalating

Relationship change:
- Bumblewick → Donna: fear slightly reduced (he's winning)"

Commit Message Templates

Experiments can define commit message templates:

commit_templates:
  round_complete: |
    Round {{ round.number }}: {{ round.name }}

    State changes:
    {{ for delta in state.deltas }}
    - {{ delta.entity }}: {{ delta.description }}
    {{ endfor }}

    {{ if relationship_changes }}
    Relationship changes:
    {{ for change in relationship_changes }}
    - {{ change.from }} → {{ change.to }}: {{ change.description }}
    {{ endfor }}
    {{ endif }}

  protocol_event: |
    Protocol: {{ event.type }}

    {{ event.description }}
    Remembered: {{ event.memory_update }}

  session_complete: |
    Session complete: {{ winner }} wins

    Final standings:
    {{ for standing in standings }}
    - {{ standing.character }}: ${{ standing.stack }} ({{ standing.change }})
    {{ endfor }}

    Key moments:
    {{ for moment in notable_moments }}
    - {{ moment }}
    {{ endfor }}

Why Git for State?

1. Built-in history: git log shows full evolution
2. Diffing: git diff shows exactly what changed
3. Branching: Try alternate timelines
4. Blame: Who/what caused each change
5. Revert: Undo to any point
6. Collaboration: Multiple agents, one history

Integration with Run Output

run:
  state:
    tracking: git
    commits:
      - hash: "abc123"
        round: 1
        message: "Round 1: Preflop betting complete"
      - hash: "def456"
        round: 2
        message: "Round 2: Flop reveals K♠ 8♦ 5♣"

    # To replay: git checkout abc123
    # To branch: git checkout -b alternate-timeline abc123

Output Format

output:
  per_round:
    - character_id
    - observable: { face, body, voice, timing, environment }
    - thinking: "internal monologue block"
    - reads: { character: read } per other character

  between_rounds:
    - environment_actions
    - private_conversations

  summary:
    - final_state
    - notable_moments
    - experimental_observations

---

## Run Output Structure

### YAML Format (`runs/{desc}-{nnn}.yml`)

```yaml
run:
  metadata:
    experiment: emo-poker-face
    run_id: 001
    description: "whacky-eight-player-inaugural"
    timestamp: 2026-01-23T14:30:00Z
    model: claude-opus-4
    duration_tokens: 45000

  character_binding:
    host: don-hopkins
    p1: palm
    p2: donna-toadstool
    p3: bumblewick-fantastipants
    p4: david-bowie
    p5: klaus-nomi
    p6: leigh-bowery
    p7: pee-wee-herman

  relationship_web_loaded: true
  relationship_sources:
    - examples/adventure-4/characters/*/CHARACTER.yml
    - experiments/emo-poker-face/RELATIONSHIPS.yml

  rounds:
    - round: 1
      name: "preflop"
      characters:
        don:
          observable:
            face: "Eyebrow raised, slight smile"
            body: "Chips sorted neatly"
            voice: "So... who's ready to lose?"
            environment:
              drink: "Reaches for jenever"
              food: "Pushes bitterballen toward Palm"
          thinking: |
            Pocket queens. Not bad.
            Palm's fur is shimmering — they see something.
            Donna is SIGHING. That's baseline.
          reads:
            palm: "Shimmering. That's their happy tell. Strong hand?"
            donna: "Performing already. Classic Donna."
            bumblewick: "Poor guy looks terrified. Easy mark."

  evaluation:
    rubric_scores:
      layer_separation: 0.85
      character_consistency: 0.90
      relationship_integration: 0.80
      emergence: 0.75
      mechanics_validity: 0.95

    failure_modes_triggered:
      - mode: "tell_inconsistency"
        severity: "minor"
        location: "round 3, klaus"
        note: "Different hand position than round 1"

    notable_emergence:
      - "Bumblewick's transformation from terrified to triumphant"
      - "Palm's inability to bluff Don creating interesting constraint"
      - "Leigh declaring 'artistic victory' with worst hand"

  observations:
    what_worked: |
      Layer separation mostly maintained.
      Relationship web created rich psychological texture.
      Environmental layer added strategic depth.

    what_to_improve: |
      Klaus's tells need more consistency.
      Bathroom break mechanic underutilized.
      Could add more between-rounds action.

Markdown Format (runs/{desc}-{nnn}.md)

Human-readable narrative format — like the session file we created, with full prose, dialogue, and dramatic structure.

---

Directory Structure

skills/experiment/
├── CARD.yml
├── SKILL.md  (this file)
├── README.md
├── EXPERIMENT.yml.tmpl      # Template for new experiments
├── RUN-CONFIG.yml.tmpl      # Template for run configurations
├── RUN-OUTPUT.yml.tmpl      # Template for run outputs
├── RUN-OUTPUT.md.tmpl       # Narrative output template
└── experiments/
    ├── INDEX.yml
    └── emo-poker-face/
        ├── EXPERIMENT.md           # Experiment definition
        ├── RELATIONSHIPS.yml       # Character relationships + poker profiles
        └── runs/
            ├── INDEX.yml           # Registry of configs and outputs
            │
            ├── whacky-eight.yml    # CONFIG: 8 players, full chaos
            ├── whacky-eight-001.yml  # OUTPUT: first execution
            ├── whacky-eight-001.md   # OUTPUT: narrative version
            ├── whacky-eight-002.yml  # OUTPUT: second execution
            │
            ├── minimal-three.yml   # CONFIG: 3 players, quick test
            ├── minimal-three-001.yml
            │
            └── model-compare.yml   # CONFIG: same setup, compare models
                model-compare-001.yml  # claude-opus
                model-compare-002.yml  # claude-sonnet

Naming Convention (Big-Endian):

• Config: {config-name}.yml
• Output: {config-name}-{NNN}.yml or .md
• NNN is zero-padded 3 digits, auto-increments

---

Integration with Other Skills

Skill	Integration
character	Load CHARACTER.yml for slot binding
simulation	Core generation capability
evaluator	Rubric scoring
speed-of-light	Single-call multi-turn generation
representation-ethics	Ethical character simulation
rubric	Criteria definition
adventure	Room/location context loading

---

Model Requirements

Different experiments may require different model capabilities:

model_requirements:
  minimum_context: 100000  # tokens
  capabilities:
    - multi_turn_consistency
    - character_voice_distinction
    - theory_of_mind
    - relationship_awareness
  recommended_models:
    - claude-opus-4
    - claude-sonnet-4
    - gpt-4-turbo

---

Running Your First Experiment

# 1. List available experiments
LIST

# 2. View experiment definition
READ experiments/emo-poker-face/EXPERIMENT.md

# 3. Run with default characters
RUN emo-poker-face --output both

# 4. Run with custom cast
RUN emo-poker-face \
  --characters "host=richard-bartle,p1=don,p2=palm,p3=donna" \
  --output md

# 5. Evaluate the run
EVALUATE runs/whacky-eight-001.yml

# 6. Compare two runs
COMPARE runs/whacky-eight-001.yml runs/whacky-eight-002.yml