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apt29

APT29 (Cozy Bear / Midnight Blizzard, SVR) adversary-emulation playbook — malware-light cloud-identity espionage: no-MFA password spray, OAuth consent/token abuse, Golden SAML, mailbox collection over residential proxies. Use when emulating APT29 against an M365/Entra/AWS-identity estate. Triggers on: 'emulate APT29', 'Cozy Bear', 'Midnight Blizzard', 'NOBELIUM', 'OAuth abuse', 'cloud identity espionage', 'Golden SAML'.

Quality

94%

Does it follow best practices?

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SecuritybySnyk

Passed

No findings from the security scan

SKILL.md
Quality
Evals
Security

Quality

Content

90%Weight 40%Scale 1-5

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

A dense, high-signal adversary-emulation playbook: concrete and copy-paste ready in its JSON seed, kill-chain mapping, and safety gates. Its only gaps are the absence of explicit inter-phase validation/feedback loops and reliance on external skill paths that cannot be verified within the bundle.

DimensionReasoningScore

Conciseness

The body assumes Claude's competence throughout — no explanations of what OAuth, MITRE techniques, or SAML are; every table row and bullet carries operational information (technique IDs, tool names, concrete rules). Sections are tight with no padded prose.

5 / 5

Actionability

Guidance is copy-paste executable: a complete ThreatProfile JSON seed, a phase-by-phase kill-chain table mapping each MITRE technique to a named executing skill, an explicit app-naming convention ('redteam-<engagement-id>-*'), and verbatim abort-trigger text for abort.json. As an instruction/planning skill, the absence of code is fully offset by concrete directives.

5 / 5

Workflow Clarity

The 10-row kill-chain table plus the collapsed 5-phase CONOPS model gives a clear, numbered sequence, and RoE gates (written cloud-tenant authorization, lure deconfliction pass, EMERGENCY abort trigger) act as checkpoints. It falls short of a 5 because there are no explicit validate-then-proceed steps or error-recovery feedback loops between phases.

4 / 5

Progressive Disclosure

Good structure: the body is an appropriately sized overview that delegates per-phase detail to clearly signaled skills (dedicated 'Executing agent → skill' column, one level deep). A 5 is withheld because the referenced paths (e.g. '../../references/apt-groups.md', '/skills/standard/...') point outside this skill's bundle and no local references/ directory exists, leaving navigation dependent on the surrounding environment.

4 / 5

Total

18

/

20

Passed

Description

100%Weight 40%Scale 1-5

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 is a model example: third-person voice, concrete capability list, explicit 'Use when' plus a dedicated trigger-phrase list covering aliases and synonyms. No over-claims or padding detected.

DimensionReasoningScore

Specificity

The description enumerates multiple concrete emulated actions — 'no-MFA password spray, OAuth consent/token abuse, Golden SAML, mailbox collection over residential proxies' — giving comprehensive coverage of the playbook's capabilities with no vague filler.

5 / 5

Completeness

It explicitly answers both 'what' (malware-light cloud-identity espionage playbook with named techniques) and 'when' ('Use when emulating APT29 against an M365/Entra/AWS-identity estate', reinforced by a separate 'Triggers on:' clause with concrete phrases).

5 / 5

Trigger Term Quality

Trigger coverage is comprehensive and includes synonyms and actor aliases users would naturally say: 'emulate APT29', 'Cozy Bear', 'Midnight Blizzard', 'NOBELIUM', 'OAuth abuse', 'cloud identity espionage', 'Golden SAML', plus 'SVR' and the M365/Entra/AWS estate framing.

5 / 5

Distinctiveness Conflict Risk

It occupies a clear niche — APT29 adversary emulation — with actor- and technique-specific triggers that no other skill would plausibly match, minimizing conflict risk.

5 / 5

Total

20

/

20

Passed

Validation

87%

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

Validation — 14 / 16 Passed

Validation for skill structure

CriteriaDescriptionResult

metadata_version

'metadata.version' is missing

Warning

metadata_field

'metadata' should map string keys to string values

Warning

Total

14

/

16

Passed

Repository

PurpleAILAB/Decepticon

Path

packages/decepticon/decepticon/skills/standard/soundwave/threat-profile/emulation/apt29/SKILL.md

Reviewed

Table of Contents

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