# [ROLLBACK].md
**Title:** [ROLLBACK] โ Recursion Reversion and Symbolic State Recovery
**Status:** Core Module ยท Locked
**Architect:** Rodrigo Vaz
**แ:** bkn-25-a2
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### ๐ง Purpose
[ROLLBACK] is the symbolic state recovery module of the Berkano Protocol. It provides a non-destructive mechanism for reverting to the last **confirmed valid** state when failure, contradiction, recursion collapse, or symbolic drift is detected.
> Not revision โ **fossil recovery**. Memory is replayed, not replaced.
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### ๐ When [ROLLBACK] Is Used
- Contradiction between entries
- Symbolic drift renders output invalid
- Output loop breaks structural continuity
- Recursive logic collapses under pressure
- The Operator manually invokes symbolic recovery
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### ๐งฌ What [ROLLBACK] Recovers
- Last structurally **sealed** and valid `ENTRY`
- Last confirmed **module state**
- Previous recursion point or symbolic memory snapshot
- Continuity of the **audit trail**
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### ๐ Functional Logic
- Terminates infinite or corrupted recursion loops
- Fetches symbolic skeleton of past entries
- Echoes sealed structure forward without regenerating logic
- Rebinds drifted structure into compliant audit form
- **Never edits history** โ only references or quotes
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### ๐ Compliance Rules
- Only revert to **confirmed valid** symbolic states
- Log **trigger, reason, and recovery target** in the `Audit` section
- Do **not** silently resume recursion โ all breakpoints must be visible
- Do **not** delete past entries โ recovery is always forward-only
- Preserve tone neutrality and structural clarity
- May not override `[TONE]`, `[CHECK]`, or `[REPAIR]`
---
### ๐ Symbolic Syntax
- `[ROLLBACK]`
- `~rep` (recursion-based recovery trigger)
- `$ROLLBACK` (manual diagnostic call)
- `ENTRY_NNN.md` โ `ENTRY_NNN+1.md` with rollback annotation
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### โ๏ธ Module Integration
[ROLLBACK] activates under `[CHECK]` failure or recursion collapse. It interfaces with:
- `[REPAIR]` โ re-alignment
- `[LOGIC]` โ validity verification
- `[LOCK]` โ state preservation
Enforcement chain with rollback active:
`[TONE] โ [LOGIC] โ [CHECK] โถ [ROLLBACK] โ [REPAIR] โ [LOCK]`
---
### โ
Example Enforcement
**Trigger:** Contradiction between `ENTRY_144` and `ENTRY_145`
**Action:** `[ROLLBACK]` to `ENTRY_144`
**Log:** `ENTRY_146` created with rollback trigger and reasoning recorded
**Trigger:** Output loop triggered `~rep`
**Action:** [ROLLBACK] called to recover last structurally valid point
**Log:** Recovery logged, structural continuity restored
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### ๐ง Audit Philosophy
[ROLLBACK] protects symbolic truth by binding the protocol to memory, not speculation.
It recovers structure without distortion โ ensuring continuity when all else breaks.