docs(code-review): document change-risk evidence model

[nightcityblade]

Pull Request

Description

Bring the Code Review usage guide in sync with the current change-risk evidence model. The guide now explains the six evidence categories, the observed / unavailable / qualitative states, the advisory recommendation flow, and the human-confirmed final depth choice. It also links the depth-tier and change-risk references and updates the Step 3 workflow description.

Related Issue(s)

Fixes #2803

Type of Change

Select all that apply:

Code & Documentation:

• Bug fix (non-breaking change fixing an issue)
• New feature (non-breaking change adding functionality)
• Breaking change (fix or feature causing existing functionality to change)
• Documentation update

Infrastructure & Configuration:

• GitHub Actions workflow
• Linting configuration (markdown, PowerShell, etc.)
• Security configuration
• DevContainer configuration
• Dependency update

N/A — no infrastructure or configuration changes.

AI Artifacts:

• Reviewed contribution with hve-builder and addressed all actionable findings
• Copilot instructions (.github/instructions/*.instructions.md)
• Copilot prompt (.github/prompts/*.prompt.md)
• Copilot agent (.github/agents/*.agent.md)
• Copilot skill (.github/skills/*/SKILL.md)
• Copilot hook (.github/hooks/*/*.json)
• Eval spec added/updated for changed AI artifacts (evals/)

N/A — this updates narrative documentation only; no AI artifact changed.

Note for AI Artifact Contributors:

• Agents: Research, indexing/referencing other project (using standard VS Code GitHub Copilot/MCP tools), planning, and general implementation agents likely already exist. Review .github/agents/ before creating new ones.
• Skills: Must include both bash and PowerShell scripts. See Skills.
• Model Versions: Contributions MUST target models listed in the model catalog (scripts/linting/model-catalog.json) whose provider appears in providerAllowlist and whose status is ga or preview. Run npm run lint:models to validate references.
• See Agents Not Accepted and Model Version Requirements.

Other:

• Script/automation (.ps1, .sh, .py)
• Other (please describe):

N/A.

Sample Prompts (for AI Artifact Contributions)

N/A — no AI artifact changed.

User Request:

N/A.

Execution Flow:

N/A.

Output Artifacts:

N/A.

Success Indicators:

N/A.

For detailed contribution requirements, see:

• Common Standards: docs/contributing/ai-artifacts-common.md - Shared standards for XML blocks, markdown quality, RFC 2119, validation, and testing
• Agents: docs/contributing/custom-agents.md - Agent configurations with tools and behavior patterns
• Prompts: docs/contributing/prompts.md - Workflow-specific guidance with template variables
• Instructions: docs/contributing/instructions.md - Technology-specific standards with glob patterns
• Skills: docs/contributing/skills.md - Task execution utilities with cross-platform scripts

Testing

• npm run validate:docs — passed (10 Jest suites / 78 tests, plus 11 Mermaid accessibility tests)
• npm run docs:build — passed; it reports one existing broken-anchor warning on docs/getting-started/methods/comparison.md
• npm run spell-check — passed (795 files)
• npx markdownlint-cli2 docs/agents/code-review/README.md — passed
• npm run lint:tables — passed
• npm run lint:frontmatter — passed (1,150 files)
• pwsh -NoProfile -File scripts/linting/Markdown-Link-Check.ps1 -Path docs/agents/code-review/README.md -Quiet — passed

Checklist

Required Checks

• Documentation is updated (if applicable)
• Files follow existing naming conventions
• Changes are backwards compatible (if applicable)
• Tests added for new functionality (if applicable)

AI Artifact Contributions

N/A — no agent, prompt, instruction, or skill changed.

• Used hve-builder review mode to review contribution
• Addressed all actionable findings from the hve-builder review
• Verified contribution follows common standards and type-specific requirements

Required Local Checks

The following local-safe validation commands must pass before merging:

• Local validation aggregate: npm run validate:local
• Documentation validation (if docs changed): npm run validate:docs
• Spell checking: npm run spell-check
• Link validation: npm run lint:md-links

The aggregate advanced through Markdown lint and the repository PowerShell analyzer but was stopped after the analyzer stalled on an unchanged security script. The link wrapper passes for the changed file; the repository-wide link run reports pre-existing failures in five unrelated reference files.

Security Considerations

• This PR does not contain any sensitive or NDA information
• Any new dependencies have been reviewed for security issues
• Security-related scripts follow the principle of least privilege

No dependencies or security-related scripts changed.

Additional Notes

The Docusaurus production build's existing broken-anchor warning is unrelated to this PR.

[Jamie Kim (jkim323)]

Hey nightcityblade, thanks for the contribution! Please review and accept the CELA by following the instructions provided by the CELA bot/check. Once completed, happy to review back. Thanks!

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