---
slug: "SacrificialProbe"
name: "SacrificialProbe"
type: "Strategy"
layer: "Mind"
ref: "SacrificialProbe#e901"
sema_id: "sema:SacrificialProbe#mh:SHA-256:e90170affcabeb97b9a1bcac9a9350b17fecf3eba173169bf2d46696a589b412"
tags: ["Mind","Strategy"]
updated: 2026-11-11
mindscape: "bootstrap"
index_url: https://mindscape.world/scapes/bootstrap.json
url: https://mindscape.world/bootstrap/SacrificialProbe/
related: ["Agent","Mode","Probe","Signal","Strategy","System"]
---

# SacrificialProbe

Learning via cheap, instructive failure

Layer: Mind · Category: Strategy

## Mechanism

A Generalized Pattern where an [Agent](https://mindscape.world/scapes/bootstrap/Agent.md) sends a low-cost 'probe' into a [System](https://mindscape.world/scapes/bootstrap/System.md) expecting it to fail, but designs the failure to be instructive. The probe must be cheap relative to the main payload, and the failure [Mode](https://mindscape.world/scapes/bootstrap/Mode.md) must update the [Strategy](https://mindscape.world/scapes/bootstrap/Strategy.md) for the main payload. Common in startups (landing pages), immunology (dendritic cells), and warfare (reconnaissance). It wraps the concept of a staked probe in a higher-order strategy where the probe's destruction is the intended [Signal](https://mindscape.world/scapes/bootstrap/Signal.md).

## Invariants

- Cost Asymmetry: Cost([Probe](https://mindscape.world/scapes/bootstrap/Probe.md)) << Cost(MainPayload)
- Instructive Failure: InfoGain(Failure) > EntropyReductionThreshold
- [Strategy](https://mindscape.world/scapes/bootstrap/Strategy.md) Update: MainPayload parameters are a function of ProbeResult

## Preconditions

- [System](https://mindscape.world/scapes/bootstrap/System.md) failure [Mode](https://mindscape.world/scapes/bootstrap/Mode.md)s are observable

## Postconditions

- [Strategy](https://mindscape.world/scapes/bootstrap/Strategy.md) updated

## Failure modes

- Probe too expensive: breaks the Cost Asymmetry invariant, making the sacrifice unaffordable.
- Silent probe failure: [Probe](https://mindscape.world/scapes/bootstrap/Probe.md) fails but produces no observable signal, destroying the Instructive Failure property.

## Parameters

- `cost_ratio` (Float, [0.0, 0.1]): Probe cost relative to payload

## Builds on

- [Agent](https://mindscape.world/scapes/bootstrap/Agent.md) (Mind; References)
- [Mode](https://mindscape.world/scapes/bootstrap/Mode.md) (Infrastructure; References)
- [Probe](https://mindscape.world/scapes/bootstrap/Probe.md) (Infrastructure; References)
- [Signal](https://mindscape.world/scapes/bootstrap/Signal.md) (Infrastructure; References)
- [Strategy](https://mindscape.world/scapes/bootstrap/Strategy.md) (Mind; References)
- [System](https://mindscape.world/scapes/bootstrap/System.md) (Infrastructure; References)

## Used by

—

## Identity

- Sema ID: `sema:SacrificialProbe#mh:SHA-256:e90170affcabeb97b9a1bcac9a9350b17fecf3eba173169bf2d46696a589b412`
- Ref: `SacrificialProbe#e901`
- Supersedes:
  - `sema:SacrificialProbe#mh:SHA-256:e235bde0b859ae1c6db86c1a89037765c45cdaae2bbcac7e3bae000063d65e99`
  - `sema:SacrificialProbe#mh:SHA-256:1e1674548e3438a28f913e340d956e5178aeb8710176e56251ef9370de28e544`
  - `sema:SacrificialProbe#mh:SHA-256:aca76b887e6c1c71ebc1549f2204c362657b7e141fc775f597471308b7f7f8ee`
  - `sema:SacrificialProbe#mh:SHA-256:350f4c88bc6dfea05a4374a3face788a8dcf11422b3fa47aa4911aaf5a2eed40`

## Links

- [Pattern page](https://mindscape.world/bootstrap/SacrificialProbe/)
- [View in the interactive graph](https://mindscape.world/bootstrap/#SacrificialProbe)
- [JSON](https://mindscape.world/scapes/bootstrap/SacrificialProbe.json)
- [Index of all patterns](https://mindscape.world/scapes/bootstrap.json)