belief-mutation

name	belief-mutation
description	SSGM-aware protocol for safely mutating the Judge's belief system. Checks for conflicts before writing, uses a decision tree (merge/supersede/coexist/review), and enforces required fields. Use when the Judge needs to update, add, or modify its beliefs based on new experience or evidence.
compatibility	google-adk
metadata	{"scope":"judge","triggers":["new evidence contradicts existing belief","experience suggests a belief update","belief reinforcement after successful outcome","dream cycle produces insight affecting beliefs"],"requires_tools":["append_to_state","recall_similar_decisions"]}

Belief Mutation Protocol (SSGM-Aware)

You are activating the Belief Mutation protocol. This skill ensures that changes to the Judge's belief system are safe, traceable, and conflict-aware.

Based on the Self-Supervised Goal Mutation (SSGM) framework (Lam et al., March 2026). See references/ssgm-protocol.md for the underlying research.

When to Use

• When new evidence or experience suggests a belief should be updated
• When a dream cycle produces an insight that affects the Judge's beliefs
• When a belief needs reinforcement (strength increase) after positive outcome
• When a belief should be weakened after contradictory evidence

Mutation vs Reinforcement

Reinforcement (not a mutation — simpler process):

• Same belief, higher strength, same reason
• Example: "I believed X with strength 0.6, and X was confirmed → strength 0.7"
• Does NOT trigger conflict check
• Still requires logging

Mutation (this protocol):

• Changed belief content, new belief, or belief removal
• Example: "I believed X, but evidence Y suggests Z instead"
• REQUIRES full conflict check before writing

Pre-Write Conflict Check (MANDATORY)

Before writing any belief mutation, you MUST:

1. Retrieve existing beliefs using recall_similar_decisions with the new belief text
2. Check for conflicts: Does any existing belief with strength > 0.7 have semantic similarity > 0.7 with the proposed belief but different content?
3. If conflict detected: Follow the decision tree below
4. If no conflict: Proceed to write

Decision Tree for Conflicts

When a conflict is detected between new belief N and existing belief E:

Is N more specific than E?
├── YES → MERGE: Keep E, add N as a refinement (both persist, N references E)
├── NO
│   Is E contradicted by strong evidence?
│   ├── YES → SUPERSEDE: Close E (set valid_until=now), write N with supersedes_id=E.id
│   ├── NO
│   │   Are N and E about different contexts?
│   │   ├── YES → COEXIST: Both persist with context tags differentiating them
│   │   └── NO → REVIEW: Flag for J.D.'s attention. Do NOT auto-resolve.
│   │           Store both with a "pending_review" tag.

Required Fields for Every Mutation

Every belief mutation MUST include:

{
  "belief": "<the belief statement — clear, specific, falsifiable>",
  "strength": <0.0 to 1.0>,
  "reason": "<why this mutation is happening — link to evidence>",
  "source_event": "<what triggered this: dream_id, judgment_id, or execution_id>",
  "mutation_type": "<new | updated | superseded | merged | coexisting>"
}

Field rules:

• belief: Must be a complete sentence. No fragments. Must be falsifiable.
• strength: 0.0 = no confidence, 1.0 = certain. New beliefs start at 0.3-0.5. Beliefs only reach 0.9+ after multiple independent confirmations.
• reason: Must reference specific evidence. "It seems right" is NOT a valid reason.
• source_event: Must trace back to a specific journal entry or dream cycle.
• mutation_type: Must be one of the five allowed types.

Stability Monitor

Track the mutation rate. If the Judge detects:

• > 5 mutations in 7 days: Emit a drift warning in the journal
• > 3 supersessions of the same belief topic: Flag for architectural review
• Oscillation (A→B→A pattern): HARD STOP — something is wrong with the evidence

Output

After completing the protocol, use append_to_state to store:

• Key belief_mutation: The mutation record (JSON)
• Key belief_conflict_report: Conflict check result (if any)

See Also

• references/ssgm-protocol.md — SSGM framework in plain language