dt-obs-log-semantic-mapping

Build and validate semantic-dictionary-aligned mappings for audit log integrations.

Purpose

Use this skill when a user wants to:

• Suggest a mapping from a raw vendor audit log payload to Dynatrace fetch logs fields (Workflow A).
• Validate a mapping against a pasted ingested log event (Workflow B1 — static).
• Validate against live tenant data via live tenant access (Workflow B2 — runtime: fetches logs by log.source, then runs B1 on the result).

Log Classes

Class	Description	Key namespaces	Example sources
authentication	Login, logout, MFA, token	audit.*, actor.*, browser.*, device.*	CyberArk, Okta, Azure SignInLogs
authorization	Access decisions, permission changes	audit.*, actor.*, object.*	CyberArk, Okta
user_action	CRUD on platform resources	audit.*, actor.*, object.*, product.*	Okta, GitHub, Sonatype
http	HTTP request/response (WAF, network devices)	http.*, url.*, server.*, geo.*, client.*	Akamai SIEM, Cloudflare

Workflows

Mode	Input	Source
Workflow A — Suggest mapping	Raw vendor log payload	references/mapping-workflow.md § Workflow A
Workflow B1 — Static validation	Pasted ingested log event	references/mapping-workflow.md § Workflow B1
Workflow B2 — Runtime validation	log.source value + live tenant access	references/runtime-validation.md — fetches logs, then runs B1

Key Concepts

Content field burial: The primary validation concern. Fields in content (the raw vendor payload) that could be promoted to top-level semantic attributes but are not. The skill always inventories buried vs promoted fields and proposes OpenPipeline extraction rules to fix gaps.

Prerequisite: When proposing OpenPipeline processor extraction rules, load the dt-dql-essentials skill first. OpenPipeline processors use DQL functions (parse, fieldsAdd, splitString, etc.) — using non-DQL syntax produces invalid rules.

Sparse mappings are valid: Integrations like GitHub or Sonatype may only populate core fields. Minimum required: timestamp, log.source, content, loglevel, audit.action, audit.identity.

References

• references/data-model-notes.md — Log SD field taxonomy, audit namespace, enums, sample-derived patterns and known discrepancies
• references/mapping-workflow.md — Intake checklist, Workflow A and B1 procedures, content field analysis, field priority order
• references/validation-rules.md — Required fields, content/enum/type rules, discrepancy severity
• references/openpipeline-constraints.md — OpenPipeline processor command/function/operator/matcher restrictions; parseJson unavailability + parse→fieldsFlatten alternative; iterative operators for array casting
• references/report-format.md — Mapping table, diff table, OpenPipeline sketch, Validation Summary templates
• references/runtime-validation.md — Workflow B2: fetch live records, then run B1
• samples/audit-logs.json — Mapped samples: CyberArk, Okta, Azure SignInLogs, Sonatype, GitHub
• samples/http-logs.json — Mapped samples: Akamai SIEM (WAF/HTTP class)
• Dynatrace Log Semantic Dictionary