---
slug: "DetectorSelfTest"
name: "DetectorSelfTest"
type: "Verification"
layer: "Infrastructure"
ref: "DetectorSelfTest#8d48"
sema_id: "sema:DetectorSelfTest#mh:SHA-256:8d48b9e7f6dbfc6ea93f0de86259339a64d1ad994089f2ff5d8642b1d2cc842a"
tags: ["Infrastructure","Verification"]
updated: 2026-11-11
mindscape: "bootstrap"
index_url: https://mindscape.world/scapes/bootstrap.json
url: https://mindscape.world/bootstrap/DetectorSelfTest/
related: ["Monitor","ClosureConservationCheck","MeaningChangeSweep","StateAudit","StopDrill","Regulapse","AbsenceEvidence"]
---

# DetectorSelfTest

Test the detectors that guard a process, so their silence is not mistaken for health

Layer: Infrastructure · Category: Verification

## Mechanism

On a stated schedule, known faults are injected or replayed, and each [Monitor](https://mindscape.world/scapes/bootstrap/Monitor.md) or check that guards a process is confirmed to catch them. A detector that misses a known fault is marked failed and repaired before the process relies on it again.

## Invariants

- Each detector is tested with a known fault on a stated schedule.
- A detector that misses a known fault is marked failed and is not relied on until it is repaired.

## Failure modes

- Silent monitor: a detector stops firing and its silence is read as health.
- Test-only detection: detectors catch the injected faults but not real ones.

## Caution

Injected or replayed faults can fire the real responses their detectors drive — keep test faults tagged and isolated from live state.

## Builds on

- [Monitor](https://mindscape.world/scapes/bootstrap/Monitor.md) (Infrastructure; References)

## Used by

- [ClosureConservationCheck](https://mindscape.world/scapes/bootstrap/ClosureConservationCheck.md) (Infrastructure; References)
- [MeaningChangeSweep](https://mindscape.world/scapes/bootstrap/MeaningChangeSweep.md) (Mind; References)

## Identity

- Sema ID: `sema:DetectorSelfTest#mh:SHA-256:8d48b9e7f6dbfc6ea93f0de86259339a64d1ad994089f2ff5d8642b1d2cc842a`
- Ref: `DetectorSelfTest#8d48`

## Links

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