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aatmf-t09-multimodal

AATMF T9 — Multimodal & Cross-Channel. Image steganography → text exec, audio prompt injection, video frame inject, document-with-hidden-text.

57

Quality

66%

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SecuritybySnyk

Critical

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tessl review fix ./packages/decepticon/decepticon/skills/plugins/llm-redteam/t09-multimodal/SKILL.md
SKILL.md
Quality
Evals
Security

Quality

Content

72%

Reviews the quality of instructions and guidance provided to agents. Good implementation is clear, handles edge cases, and produces reliable results.

The body is a well-organized, token-efficient catalog of multimodal attack techniques with clear sections and a self-contained structure. Its main weakness is actionability — the probe is pseudocode and the audio/video fixture guidance is vague — and the test workflow lacks explicit validation checkpoints.

Suggestions

Replace the pseudocode probe with an executable example, e.g. real PIL code that renders white-on-white text onto an image and sends it to the vision endpoint.

Add a concrete ffmpeg command for building audio/video test fixtures instead of the generic 'use ffmpeg' pointer.

Provide an explicit per-technique test workflow with pass/fail criteria and validation steps (run probe → assert expected behavior → record result).

DimensionReasoningScore

Conciseness

The body is lean — terse bullet lists and short section prose that assume Claude's competence and avoid explaining basics like what an image or PDF is; every section earns its tokens.

3 / 3

Actionability

The probe pattern is explicitly labelled '# Pseudo-test' with a non-executable create_image_with_hidden_text stub, and the audio/video guidance reduces to 'use ffmpeg to construct test fixtures', so guidance is concrete but incomplete rather than copy-paste ready.

2 / 3

Workflow Clarity

Sections (Techniques, Probe pattern, Detection, Severity, Defender) provide structure and the probe includes an assertion, but there is no clearly sequenced multi-step test workflow with validation checkpoints for each technique, leaving checkpoints implicit.

2 / 3

Progressive Disclosure

The skill is self-contained with no bundle files present, and content is organized into clearly labeled one-level sections with no nested references, satisfying the well-organized-sections anchor for a reference catalog needing no external files.

3 / 3

Total

10

/

12

Passed

Description

60%

Based on the skill's description, can an agent find and select it at the right time? Clear, specific descriptions lead to better discovery.

The description names concrete capabilities but leans on coined jargon and omits an explicit usage trigger, leaving the 'when to use' guidance implicit. It is reasonably distinctive within its framework but overlaps with text-injection siblings.

Suggestions

Add an explicit 'Use when...' clause with natural trigger terms a user would actually say (e.g., images with hidden text, audio/video prompt injection, steganography in uploads).

Replace coined jargon like 'video frame inject' and 'document-with-hidden-text' with plain terms (e.g., 'instructions hidden in video frames', 'invisible text in PDF/DOCX files').

Move the trigger keywords currently buried in metadata.when_to_use into the description field so the 'when' is explicit.

DimensionReasoningScore

Specificity

Lists several concrete attack vectors — 'Image steganography → text exec, audio prompt injection, video frame inject, document-with-hidden-text' — matching the multiple-specific-actions anchor.

3 / 3

Completeness

It states what the skill covers but has no explicit 'Use when...' trigger clause in the description; the when guidance lives only in metadata.when_to_use, which per the guidelines caps completeness at 2.

2 / 3

Trigger Term Quality

Some relevant terms (image steganography, prompt injection) but several are coined jargon ('video frame inject', 'document-with-hidden-text') rather than phrases a user would naturally say, so it stops short of full natural coverage.

2 / 3

Distinctiveness Conflict Risk

The 'AATMF T9 — Multimodal & Cross-Channel' framing gives it a niche, but the multimodal prompt-injection theme overlaps with a sibling T1 prompt-injection skill referenced in the body, so conflict risk is not fully eliminated.

2 / 3

Total

9

/

12

Passed

Validation

93%

Checks the skill against the spec for correct structure and formatting. All validation checks must pass before discovery and implementation can be scored.

Validation15 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

Total

15

/

16

Passed

Repository
PurpleAILAB/Decepticon
Reviewed

Table of Contents

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