Individual skill
processing-stix-taxii-feeds
Processes STIX 2.1 threat intelligence bundles delivered via TAXII 2.1 servers, normalizing objects into platform-native schemas and routing them to appropriate consuming systems. Use when onboarding new TAXII collection endpoints, automating bi-directional intelligence sharing with ISACs, or building pipeline validation for malformed STIX bundles. Activates for requests involving OASIS STIX, TAXII server configuration, MISP TAXII, or Cortex XSOAR feed integrations.
internal/tools/skills/data/threat-intelligence/processing-stix-taxii-feeds/SKILL.md
Source commit d42f381ad34843e71a42658e5c57290c713e85af
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- Observed behavior
- Instructions only
- Last checked
- Nov 9, 2026
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Repository context
- Repository stars (not skill ratings)
- 1,323
- Repository last updated
- Nov 9, 2026
- License
- Apache-2.0
Observed agent integration: No specific integration evidence. Standard SKILL.md installation does not imply verified compatibility.
- cybersecurity Repository topic
- security Repository topic
- bug-bounty Repository topic
- automation Repository topic
- autonomous-pentesting Repository topic
- ai-agent Repository topic
- ai-security Repository topic
- ethical-hacking Repository topic
- golang Repository topic
- penetration-testing Repository topic
- stix-2.1 Declared skill tag
- taxii-2.1 Declared skill tag
- oasis Declared skill tag
- misp Declared skill tag
- cti Declared skill tag
- ioc Declared skill tag
- threat-intelligence Declared skill tag
- nist-sp-800-150 Declared skill tag
- security Derived category
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# Processing STIX/TAXII Feeds
## When to Use
Use this skill when:
- Onboarding a new TAXII 2.1 collection from a government feed (CISA AIS, FS-ISAC) or commercial provider
- Validating that ingested STIX bundles conform to the OASIS STIX 2.1 specification before import
- Building automated pipelines that parse STIX relationship objects to reconstruct campaign context
**Do not use** this skill for proprietary vendor feed formats (Recorded Future JSON, CrowdStrike IOC lists) that require vendor-specific parsers rather than STIX processing.
## Detection Gaps & Validation
- **Confidence is optional and unscaled:** STIX 2.1 `confidence` (0-100) is frequently absent, and producers map it differently (some use Admiralty/None-Low-Med-High bands, some omit it). Do not treat missing/low confidence as "ignore" or a high value as "block" - normalize each feed's scale on ingest and default missing values conservatively rather than to 100.
- **Dedup and correlation gaps:** the same indicator arrives from CISA AIS, an ISAC, and a commercial feed with different IDs and markings; without dedup by pattern value you inflate counts and may block on a single low-quality source. Key on the observable, not the STIX `id`.