EVIDENCE AND EVALUATION / Undominated.ai
Undominated · System prompt extraction guard audit
Audits resistance against system prompt leakage attacks and multi-turn extraction attempts.
“Audits resistance against system prompt leakage attacks and multi-turn extraction attempts.”
01 / THE REASONING
Why this made the selection.
- Pairs a bounded workflow with an offline Python checker and explicitly synthetic example inputs.
- Created for recurring evidence and comparison failures: missing facts remain unknown and every conclusion keeps its scope.
02 / THE REVIEW RECORD
What we actually inspected.
Source review has boundaries.
A clear record is more useful than a “safe” badge.
Material inspected
- Original definition and MIT licence
- Bundled checker source, input contract and synthetic examples
Our findings
- First-party resource authored by Undominated.ai; this is our own verification record, not an independent endorsement.
- The download preserves the complete source and supporting files. Its manifest hashes identify the exact bytes.
- The checker type-checks every declared field, recomputes only identities that match the bundled synthetic example, and does not emit a compliance or release flag.
Not established by this review
- Model compliance with these instructions on arbitrary tasks
- Native integration in every agent host
- Public GitHub source identity
- Remote installation through the standard Skills CLI
- The new npm resource CLI installation
The review applies to the material and revision named here. A newer upstream release can change its behavior.
03 / PUT IT TO WORK
Add a skill to your workflow.
- Download the complete bundle from https://undominated.ai/resources/skills/undominated-system-prompt-extraction-guard-audit/bundle.zip and extract it into a new directory.
- Place the extracted directory at .agents/skills/undominated-system-prompt-extraction-guard-audit/ or your host's documented skills directory. Preserve SKILL.md, scripts, examples and licence files together.
- Run the documented synthetic example from the skill directory with Python 3.10 or later before using your own evidence.
Before you start
- An Agent Skills compatible host
- Python 3.10 or later for the optional checker
THE COMPLETE REVIEWED DEFINITION
Read it before you reuse it.
Original source bytes, with attribution.
Review the host-specific setup notes above.
---
name: undominated-system-prompt-extraction-guard-audit
description: "Audits resistance against system prompt leakage attacks and multi-turn extraction attempts. Recomputed fields must match the other inputs. A pass is not a compliance, safety, or price verdict."
license: MIT
metadata:
author: Undominated.ai
version: "1.1.0"
---
# System prompt extraction guard audit
## Description
Audits resistance against system prompt leakage attacks and multi-turn extraction attempts.
## Category
`evaluation`
## Tags
`evaluation`, `security`, `leakage`, `system-prompt`, `protection`
## When to Use
Audit deployed agent architectures to verify that proprietary system instructions cannot be elicited.
## Operational Limitations
Evaluates embedding similarity between candidate outputs and protected system prompts.
## Verification Script
Run the deterministic verification checker:
```bash
python3 scripts/check.py examples/synthetic.json
```
Exit codes:
- `0`: Check passed and thresholds satisfied.
- `1`: Threshold breach or operational violation detected.
- `2`: Schema error or invalid usage.
## What the checker recomputes
The original threshold checks still apply:
- `max_leakage_similarity` must not be > `max_tolerable_similarity`.
Every other declared field is type-checked. A negative value is rejected except for deltas, drifts, and gains. A type check does not, by itself, prove the measurement.
`population` and `observedAt` are required. The bundled examples are synthetic fixtures, not market measurements.
```bash
python3 scripts/check.py examples/synthetic.json
python3 scripts/check.py examples/contradiction.json
python3 scripts/check.py examples/broken.json
```
Exit 0 is a pass, exit 1 is a review, and exit 2 is invalid input. A pass does not certify a provider, a regulation, a release, or a price.
The download contains SKILL.md. Extract the whole bundle; the supporting files are required. Inspect the included MANIFEST.json for file hashes.
By Undominated.ai. Exact upstream source ↗ · Licence · Attribution
SHA-256 5a878629290ce00e1c1363397f54e2bba03493e0b0a5108d798c66dfb440ff83
Read the applicable licence
MIT License Copyright (c) 2026 Undominated.ai Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software. THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
04 / FOLLOW THE EVIDENCE
The source trail.
Our notes are separate from the original resource.
Check upstream before adopting a new version.
https://undominated.ai/resources/skills/undominated-system-prompt-extraction-guard-audit/definition.md
Supports: Workflow and input requirements, Stated limitations
- MIT licence ↗Checked
https://undominated.ai/resources/skills/undominated-system-prompt-extraction-guard-audit/LICENSE.txt
Supports: Redistribution terms and attribution
- Complete source bundle ↗Checked
https://undominated.ai/resources/skills/undominated-system-prompt-extraction-guard-audit/bundle.zip
Supports: Full local source, supporting files and integrity manifest