---
slug: "SimulationTrace"
name: "SimulationTrace"
type: "Memory"
layer: "Mind"
ref: "SimulationTrace#e187"
sema_id: "sema:SimulationTrace#mh:SHA-256:e18789d2ae0413d7f4a4429598f9a12c6f2b9fe4b515eef176d855dcadc0d987"
tags: ["Mind","Memory"]
updated: 2026-11-11
mindscape: "bootstrap"
index_url: https://mindscape.pages.dev/bootstrap/index.json
url: https://mindscape.pages.dev/bootstrap/SimulationTrace/
related: ["MentalSim","Simulation","Trace","PropheticQuorum"]
---

# SimulationTrace

Pre-execution mental model

Layer: Mind · Category: Memory

## Mechanism

Before taking an irreversible action (e.g., `delete_file`), the agent simulates the execution step-by-step in a scratchpad. It inspects the predicted state after the action. If the state looks bad, it aborts. It generates a verifiable [Trace](https://mindscape.pages.dev/bootstrap/Trace.md) of a [MentalSim](https://mindscape.pages.dev/bootstrap/MentalSim.md), creating an immutable record of the predicted future state.

## Invariants

- Causality: Every step T+1 is derived from T
- Replayability: [Trace](https://mindscape.pages.dev/bootstrap/Trace.md)(Start) == End
- [Trace](https://mindscape.pages.dev/bootstrap/Trace.md) immutable after creation.

## Preconditions

- [Simulation](https://mindscape.pages.dev/bootstrap/Simulation.md) engine initialized

## Postconditions

- Verifiable trace artifact generated

## Failure modes

- [Simulation](https://mindscape.pages.dev/bootstrap/Simulation.md) inaccuracy (the map is not the territory).

## Parameters

- `confidence_floor` (Probability, [0.5, 0.9]): Min certainty to trust trace
- `simulation_fidelity` (Percentage, [70%, 99%]): Required model accuracy

## Builds on

- [MentalSim](https://mindscape.pages.dev/bootstrap/MentalSim.md) (Mind; References)
- [Simulation](https://mindscape.pages.dev/bootstrap/Simulation.md) (Mind; References)
- [Trace](https://mindscape.pages.dev/bootstrap/Trace.md) (Infrastructure; References)

## Used by

- [PropheticQuorum](https://mindscape.pages.dev/bootstrap/PropheticQuorum.md) (Society; References)

## Identity

- Sema ID: `sema:SimulationTrace#mh:SHA-256:e18789d2ae0413d7f4a4429598f9a12c6f2b9fe4b515eef176d855dcadc0d987`
- Ref: `SimulationTrace#e187`
- Supersedes:
  - `sema:SimulationTrace#mh:SHA-256:9da67f06f48d0416c35169ed3a5a825dd1a477f3966a175fd0a66280c93d49d0`
  - `sema:SimulationTrace#mh:SHA-256:096eee69576638b38a5595613c41f79ae093e1036bdb70cd852edf65c42eead3`
  - `sema:SimulationTrace#mh:SHA-256:9383a9b0cb85562dc38baba1967c166f4f836ae399c08b5b229070ad279a8163`
  - `sema:SimulationTrace#mh:SHA-256:efded93ef0b1b96bb3e16e794e463895d2d5955827dac3476852b3f4413c62b5`
  - `sema:SimulationTrace#mh:SHA-256:a24e63dacfc29c2ed9e07c1f2d24947fd5247b88658b9d42629fdfbc8c3566de`

## Links

- [Pattern page](https://mindscape.pages.dev/bootstrap/SimulationTrace/)
- [View in the interactive graph](https://mindscape.pages.dev/bootstrap/#SimulationTrace)
- [JSON](https://mindscape.pages.dev/bootstrap/SimulationTrace.json)
- [Index of all patterns](https://mindscape.pages.dev/bootstrap/index.json)