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Add threat-model-analyst skill: STRIDE-A threat modeling for repositories (#1177)

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* Add threat-model-analyst skill: STRIDE-A threat modeling for repositories

Add a comprehensive threat model analysis skill that performs security audits
using STRIDE-A (STRIDE + Abuse) threat modeling, Zero Trust principles, and
defense-in-depth analysis.

Supports two modes:
- Single analysis: full STRIDE-A threat model producing architecture overviews,
  DFD diagrams, prioritized findings, and executive assessments
- Incremental analysis: security posture diff between baseline report and current
  code, producing standalone reports with embedded comparison

Includes bundled reference assets:
- Orchestrator workflows (full and incremental)
- Analysis principles and verification checklists
- Output format specifications and skeleton templates
- DFD diagram conventions and TMT element taxonomy

* Address PR review comments from Copilot reviewer

- Fix SKILL.md description: use single-quoted scalar, rename mode (2) to
  'Incremental analysis' with accurate description
- Replace 'Compare Mode (Deprecated)' sections with 'Comparing Commits or
  Reports' redirect (no deprecated language for first release)
- Fix skeleton-findings.md: move Tier 1 table rows under header, add
  CONDITIONAL-EMPTY block after END-REPEAT (matching Tier 2/3 structure)
- Fix skeleton-threatmodel.md and skeleton-architecture.md: use 4-backtick
  outer fences to avoid nested fence conflicts with inner mermaid fences
- Fix skeleton-incremental-html.md: correct section count from 9 to 8
- Fix output-formats.md: change status 'open' to 'Open' in JSON example,
  move stride_category warning outside JSON fence as blockquote
- Fix incremental-orchestrator.md: replace stale compare-output-formats.md
  reference with inline color conventions
- Regenerate docs/README.skills.md with updated description

* Address second round of Copilot review comments

- Fix diagram-conventions.md: bidirectional flow notation now uses <-->
  matching orchestrator.md and DFD templates
- Fix tmt-element-taxonomy.md: normalize SE.DF.SSH/LDAP/LDAPS to use
  SE.DF.TMCore.* prefix consistent with all other data flow IDs
- Fix output-formats.md: correct TMT category example from SQLDatabase
  to SQL matching taxonomy, fix component type from 'datastore' to
  'data_store' matching canonical enum, remove DaprSidecar from
  inbound_from per no-standalone-sidecar rule
- Fix 5 skeleton files: clarify VERBATIM instruction to 'copy the
  template content below (excluding the outer code fence)' to prevent
  agents from wrapping output in markdown fences
- Genericize product-specific names in examples: replace edgerag with
  myapp, BitNetManager with TaskProcessor, AzureLocalMCP with MyApp.Core,
  AzureLocalInfra with OnPremInfra, MilvusVectorDB with VectorDB

* Address third round of Copilot review comments

- Fix diagram-conventions.md: second bidirectional two-arrow pattern in
  Quick Reference section now uses <-->
- Fix incremental-orchestrator.md: renumber HTML sections 5-9 to 4-8
  matching skeleton-incremental-html.md 8-section structure
- Fix output-formats.md: add incremental-comparison.html to File List
  as conditional output for incremental mode
- Fix skeleton-inventory.md: add tmt_type, sidecars, and boundary_kind
  fields to match output-formats.md JSON schema example
This commit is contained in:
Vijay Chegu
2026-03-29 20:58:56 +00:00
committed by GitHub
parent d0fdc3a566
commit afba5b86b8
18 changed files with 5370 additions and 0 deletions
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docs/README.skills.md
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@@ -257,6 +257,7 @@ See [CONTRIBUTING.md](../CONTRIBUTING.md#adding-skills) for guidelines on how to
| [swift-mcp-server-generator](../skills/swift-mcp-server-generator/SKILL.md) | Generate a complete Model Context Protocol server project in Swift using the official MCP Swift SDK package. | None |
| [technology-stack-blueprint-generator](../skills/technology-stack-blueprint-generator/SKILL.md) | Comprehensive technology stack blueprint generator that analyzes codebases to create detailed architectural documentation. Automatically detects technology stacks, programming languages, and implementation patterns across multiple platforms (.NET, Java, JavaScript, React, Python). Generates configurable blueprints with version information, licensing details, usage patterns, coding conventions, and visual diagrams. Provides implementation-ready templates and maintains architectural consistency for guided development. | None |
| [terraform-azurerm-set-diff-analyzer](../skills/terraform-azurerm-set-diff-analyzer/SKILL.md) | Analyze Terraform plan JSON output for AzureRM Provider to distinguish between false-positive diffs (order-only changes in Set-type attributes) and actual resource changes. Use when reviewing terraform plan output for Azure resources like Application Gateway, Load Balancer, Firewall, Front Door, NSG, and other resources with Set-type attributes that cause spurious diffs due to internal ordering changes. | `references/azurerm_set_attributes.json`<br />`references/azurerm_set_attributes.md`<br />`scripts/.gitignore`<br />`scripts/README.md`<br />`scripts/analyze_plan.py` |
| [threat-model-analyst](../skills/threat-model-analyst/SKILL.md) | Full STRIDE-A threat model analysis and incremental update skill for repositories and systems. Supports two modes: (1) Single analysis — full STRIDE-A threat model of a repository, producing architecture overviews, DFD diagrams, STRIDE-A analysis, prioritized findings, and executive assessments. (2) Incremental analysis — takes a previous threat model report as baseline, compares the codebase at the latest (or a given commit), and produces an updated report with change tracking (new, resolved, still-present threats), STRIDE heatmap, findings diff, and an embedded HTML comparison. Only activate when the user explicitly requests a threat model analysis, incremental update, or invokes /threat-model-analyst directly. | `references/analysis-principles.md`<br />`references/diagram-conventions.md`<br />`references/incremental-orchestrator.md`<br />`references/orchestrator.md`<br />`references/output-formats.md`<br />`references/skeletons`<br />`references/tmt-element-taxonomy.md`<br />`references/verification-checklist.md` |
| [tldr-prompt](../skills/tldr-prompt/SKILL.md) | Create tldr summaries for GitHub Copilot files (prompts, agents, instructions, collections), MCP servers, or documentation from URLs and queries. | None |
| [transloadit-media-processing](../skills/transloadit-media-processing/SKILL.md) | Process media files (video, audio, images, documents) using Transloadit. Use when asked to encode video to HLS/MP4, generate thumbnails, resize or watermark images, extract audio, concatenate clips, add subtitles, OCR documents, or run any media processing pipeline. Covers 86+ processing robots for file transformation at scale. | None |
| [typescript-mcp-server-generator](../skills/typescript-mcp-server-generator/SKILL.md) | Generate a complete MCP server project in TypeScript with tools, resources, and proper configuration | None |