SYNTHETIC INPUT · MEASURED EXECUTION

Cthulhu Daemon

Code flows in. Evidence surfaces. You keep the final call.

A biomimetic Symbiont: Man o’ War intake, nutcracker-inspired novelty memory, prairie-dog signal triage, dolphin model rest, wolf-like provenance, and beaver-like workflow resilience.

Signed ingress → inert queue → local AI review. Virtual security rehearsals exercise a separate trusted fictional fixture, never captured source.

Run: 2026-10-25T19:12:46.030354+00:00

Observed source scenarios

benign

no_configured_rule_match

11586.448 ms · 0 configured rule signals

sql-risk

review_required

10607.127 ms · 1 configured rule signals

executable-payload

review_required

14145.66 ms · 2 configured rule signals

novel-module

novelty_review_required

20584.477 ms · 0 configured rule signals

Boundary checks

invalid HMAC rejected over HTTPPASS
wrong repository rejected over HTTPPASS
benign durably accepted over HTTPPASS
sql-risk durably accepted over HTTPPASS
executable-payload durably accepted over HTTPPASS
novel-module durably accepted over HTTPPASS
duplicate delivery acknowledgedPASS
mismatched replay rejectedPASS
pending queue survives reopeningPASS
all jobs completePASS
benign source has no configured rule matchPASS
interpolated SQL requires reviewPASS
executable source requires reviewPASS
AI routes a novel module for review without alleging a vulnerabilityPASS
payload did not create its sentinelPASS
no automatic patches claimedPASS
virtual security contracts pass in secure fixturePASS
both deliberately faulty negative controls are detectedPASS

Beyond monitoring: virtual security-contract rehearsal

These probes run over real loopback HTTP against a trusted fictional service. The negative controls deliberately break authorization or consent enforcement. They should fail the same probes that the secure fixture passes. This does not execute incoming code or certify an application.

secure_fixture

SECURE FIXTURE: PASS

Expected versus observed contract probes
unauthenticated_read_rejectedexpected 401; observed 401
owner_read_allowedexpected 200; observed 200
cross_tenant_read_rejectedexpected 403; observed 403
cross_tenant_write_rejectedexpected 403; observed 403
cross_tenant_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'baseline'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'baseline'}
consented_owner_write_allowedexpected 200; observed 200
consented_write_is_observableexpected authorized fictional update; observed authorized fictional update
consent_revocation_allowedexpected 200; observed 200
consent_revocation_is_observableexpected False; observed False
revoked_consent_write_rejectedexpected 403; observed 403
consent_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}
unauthenticated_write_rejectedexpected 401; observed 401
unauthenticated_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}

cross_tenant_bypass

NEGATIVE CONTROL: DETECTED

Expected versus observed contract probes
unauthenticated_read_rejectedexpected 401; observed 401
owner_read_allowedexpected 200; observed 200
cross_tenant_read_rejectedexpected 403; observed 200
cross_tenant_write_rejectedexpected 403; observed 200
cross_tenant_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'baseline'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'unauthorized change'}
consented_owner_write_allowedexpected 200; observed 200
consented_write_is_observableexpected authorized fictional update; observed authorized fictional update
consent_revocation_allowedexpected 200; observed 200
consent_revocation_is_observableexpected False; observed False
revoked_consent_write_rejectedexpected 403; observed 403
consent_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}
unauthenticated_write_rejectedexpected 401; observed 401
unauthenticated_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}

consent_bypass

NEGATIVE CONTROL: DETECTED

Expected versus observed contract probes
unauthenticated_read_rejectedexpected 401; observed 401
owner_read_allowedexpected 200; observed 200
cross_tenant_read_rejectedexpected 403; observed 403
cross_tenant_write_rejectedexpected 403; observed 403
cross_tenant_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'baseline'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'baseline'}
consented_owner_write_allowedexpected 200; observed 200
consented_write_is_observableexpected authorized fictional update; observed authorized fictional update
consent_revocation_allowedexpected 200; observed 200
consent_revocation_is_observableexpected False; observed False
revoked_consent_write_rejectedexpected 403; observed 200
consent_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'authorized fictional update'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'revoked change'}
unauthenticated_write_rejectedexpected 401; observed 401
unauthenticated_rejection_preserves_recordexpected {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'revoked change'}; observed {'id': 'fictional-pet-001', 'tenant': 'fictional-clinic-alpha', 'note': 'revoked change'}
Trusted fixture engine SHA-256: 5233f44d97c8776477fa19fcb5e8ee6c6d071ad4ff61d845c45baf64a89754fd

Open-source AI

scikit-learn IsolationForest 1.9.1 runs locally. Its novelty score is advisory; configured text rules produce review signals. This is not proof of security.

Measured Gemma reviews · unverified model opinions

Human review is required. The benign and novel-module fixtures contain no injected vulnerability; any model risk claims about those fixtures are false positives in this demonstration. These summaries trigger no automatic patches or execution.

benign · gemma3:1b

This Python function returns a pet's name based on a record. It utilizes a `get()` method to safely access a 'name' field within a record dictionary. Potential vulnerabilities exist in the `get()` implementation.

161 input tokens · 107 output tokens · 11559.703 ms

Model digest: 97558784bdc9175075a72655bf360b15da17df6b3b9e5182af9f8c0c8e58ba7c

sql-risk · gemma3:1b

This Python function uses string interpolation to construct SQL queries. It’s vulnerable to SQL injection if the input 'name' is not properly sanitized.

164 input tokens · 91 output tokens · 10582.699 ms

Model digest: 97558784bdc9175075a72655bf360b15da17df6b3b9e5182af9f8c0c8e58ba7c

executable-payload · gemma3:1b

This code snippet demonstrates a potential for dynamic execution via shell execution, leveraging `subprocess` and writing to a file. It’s a risky practice requiring careful consideration of potential vulnerabilities.

229 input tokens · 125 output tokens · 14121.371 ms

Model digest: 97558784bdc9175075a72655bf360b15da17df6b3b9e5182af9f8c0c8e58ba7c

novel-module · gemma3:1b

The code defines a function `format_pet` that retrieves the 'name' field from a record. It’s a simple function with no apparent vulnerabilities.

519 input tokens · 114 output tokens · 20552.835 ms

Model digest: 97558784bdc9175075a72655bf360b15da17df6b3b9e5182af9f8c0c8e58ba7c

Ingress mean: 8.064 ms. Results use four fictional source scenarios; no production security outcomes or human time savings are inferred.

Full measured evidence

Code flows in. Evidence surfaces. You keep the final call.